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Nortel 7400 Hardware Installation

Multiservice switch
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Table of Contents

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Nortel Networks Multiservice Switch 7400
Hardware Installation,
Maintenance, and Upgrade
NN10600-175

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Summary of Contents for Nortel 7400

  • Page 1 Nortel Networks Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade NN10600-175...
  • Page 3 Document status: Standard Document version: 6.1S2 Document date: November 2004 Copyright © 2004 Nortel Networks. All Rights Reserved. Printed in Canada NORTEL, NORTEL NETWORKS, the globemark design, the NORTEL NETWORKS corporate logo, DPN, and PASSPORT are trademarks of Nortel Networks.
  • Page 5 Publication history November 2004 6.1S2 Standard General availability. Contains information on Nortel Networks Multiservice Switch 7400 for the PCR6.1 release. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 6 Publication history NN10600-175 6.1S2...

  • Page 7: Table Of Contents

    How to get more help 33 Chapter 1 Multiservice Switch 7420 installation Chapter 2 Multiservice Switch 7420 replacement Chapter 3 Multiservice Switch 7440 installation Chapter 4 Multiservice Switch 7440 replacement Chapter 5 Multiservice Switch 7460 installation Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 8: Multiservice Switch 7480 Installation Chapter

    8 Contents Chapter 6 Multiservice Switch 7460 replacement Chapter 7 Multiservice Switch 7480 installation Chapter 8 Multiservice Switch 7480 replacement Chapter 9 Air filter replacement Chapter 10 Alarm hardware installation Chapter 11 Alarm hardware replacement Chapter 12 BITS cable replacement Chapter 13 BITS termination panel replacement Chapter 14...
  • Page 9 FP addition Chapter 27 FP decommissioning Chapter 28 Function processor upgrade Chapter 29 Local operator terminal replacement Chapter 30 Modem installation Chapter 31 Modem replacement Chapter 32 Multiport aggregate device replacement Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 10: Air Filter Replacement Chapter

    Configuring the modem software 217 Connecting a cable between a modem and a device 219 Connecting a local operator terminal to a Multiservice Switch 7400 221 Disconnecting a local operator terminal or modem from a device 224 Grounding a dc-powered Multiservice Switch 7420 225...

  • Page 11: Contents

    Installing ac power cables on a multiport aggregate device 310 Installing an ac power cable 311 Installing an alarm panel cable or cabinet door alarm cable 316 Installing an external alarm cable 317 Installing an FP 321 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 12 12 Contents Installing covers for a Multiservice Switch 7440 326 Installing CP cables for BITS 329 Installing dc power cables onto a multiport aggregate device 332 Installing dc power cables onto a Multiservice Switch 7420 335 Installing dc power cables onto a Multiservice Switch 7440 337 Installing dc power cables onto a Multiservice Switch 7460 339 Installing dc power cables onto a Multiservice Switch 7480 343 Installing ferrite beads onto dc power cables 346...

  • Page 13: Contents

    Routing cables out of a cabinet 508 Routing card cables on a Multiservice Switch 7420 510 Routing card cables on a Multiservice Switch 7440 512 Routing card cables on a Multiservice Switch 7460 514 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 14 14 Contents Routing card cables on a Multiservice Switch 7480 516 Setting DIP switches on a HSSI function processor 518 Setting DIP switches on a V.11 function processor 520 Setting modem DIP switches 522 Turning on power 522 Unpacking a horizontally-packaged cabinet 524 Unpacking a Multiservice Switch 7420 527 Unpacking a Multiservice Switch 7440 530 Unpacking a Multiservice Switch 7460 533...
  • Page 15 Multiservice Switch 7480 replacement taskflow: part 1 85 Figure 21 Multiservice Switch 7480 replacement taskflow: part 2 86 Figure 22 Air filter replacement task flow 90 Figure 23 Alarm hardware installation task flow 92 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 16 16 Contents Figure 24 Alarm hardware replacement task flow 96 Figure 25 BITS cable replacement task flow 100 Figure 26 BITS termination panel replacement task flow 102 Figure 27 Cabinet installation task flow 106 Figure 28 Cable replacement task flow 110 Figure 29 Card cable routing and labeling task flow 114 Figure 30...
  • Page 17 Example of a control processor faceplate 263 Figure 86 Securing the feet to a desk-top mounted Multiservice Switch 7420 265 Figure 87 Cable guide on desk-top mounted Multiservice Switch 7420 266 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 18 18 Contents Figure 88 Securing the feet to the bottom of a floor-mounted device 267 Figure 89 Installing brackets on a multiport aggregate device 271 Figure 90 Securing the rack-mounting brackets to the Multiservice Switch 7420 Figure 91 Securing the rack-mounting brackets to the front vertical rails 274 Figure 92 Securing the rear seismic brackets to the Multiservice...

  • Page 19: Control Processor Upgrade Chapter

    Position of side panels and cross rails for a Multiservice Switch 7460 in a seismic cabinet 369 Figure 137 Seismic cabinet mounting—rear view 371 Figure 138 D-sub pinout for BITS cables for DS1 or E1 balanced 378 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 20 20 Contents Figure 139 Steps for making a braided shield 380 Figure 140 Braided shield assembly 381 Figure 141 Cabinet door with hinges on the left 384 Figure 142 Cabinet door with hinges on the right 385 Figure 143 Multiservice Switch cabinet anchoring (concrete and raised floors) 390 Figure 144 Multiservice Switch 7420 power control 393...
  • Page 21 Shelf assembly of a Multiservice Switch 7460 removed from a rack 483 Figure 188 Removing the air filter from a Multiservice Switch 7440 Figure 189 Installing an air filter in a Multiservice Switch 7440 487 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 22 22 Contents Figure 190 An air filter from the cooling unit for a Multiservice Switch 7460 491 Figure 191 Removing the air filter assembly from a Multiservice Switch 7480 496 Figure 192 Changing the air filter pad in a Multiservice Switch 7480 497 Figure 193 Installing an air filter in a Multiservice Switch 7480 498...
  • Page 23 Contents 23 Figure 213 Sliding the cabinet down the ramp 547 Figure 214 Removing the pallet 548 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 24 24 Contents List of tables Table 1 Pinout for the DB 9-pin connecting to the modem DB 25-pin 176 Table 2 Multiport aggregate device LED status display 270 Table 3 Processor card LED status display 326 Table 4 Typical line build out application settings 375 Table 5 Pinouts of the connectors for DS1 or E1 balanced 376 Table 6...

  • Page 25: About This Document

    • “How to get more help” (page 33) Who should read this document and why This document is intended for anyone who installs or maintains Nortel Networks Multiservice Switch 7400 equipment. What you need to know Before performing the procedures in this guide, you should: •...

  • Page 26: How This Document Is Organized

    WARNING Risk of radio interference The Multiservice Switch 7400 series has class B compliant products provided you ensure that all power, function processor (FP), and control processor (CP) cabling is also class B compliant. Using non-class B compliant cabling may cause radio interference.
  • Page 27 Procedure B (optional) Decision Yes or No PP_TASK_1000.ins Task flow navigation • cross-reference to Procedure A • cross reference to Procedure B • Procedure C. See <name and number of another NTP> Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 28: What's New In This Document

    The terms Passport and PVG have been rebranded in conjunction with the new Nortel Networks’ brand simplified naming format. Passport is now referred to as the Nortel Networks Multiservice Switch, and PVG is now Media Gateway 7480/15000. For more information on the product rebranding, refer to NN10600-000 Nortel Networks Multiservice Switch 7400/15000/20000 What’s New in PCR6.1.
  • Page 29 — “Replacing the air filter in a Multiservice Switch 7480” (page 493) • deleted all occurrences of cable cover NTPS07 since it is not supported • changed all occurrences of “function processor addition” to “FP addition” Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 30: Multiservice Switch 7460

    “Multiservice Switch 7460 replacement” (page 69) 32-port DS1 and E1 MSA 1-slot FPs Nortel Networks Multiservice Switch 7400 series introduces the 32-port DS1 MSA 1-slot function processors (FPs) with PEC NTNQ94 and the 32-port E1 MSA 1-slot FPs with PEC NTNQ93. This document is changed by: •...

  • Page 31: 4-Port 10/100Baset Ethernet Fp

    4-port 10/100BaseT Ethernet FP The 4-port 10/100BaseT Ethernet FP with PEC NTNQ95 and software name 4pEth100BaseT is introduced for any Multiservice Switch 7400, including the Multiservice Switch 7460. The 4pEth100BaseT FP is a low-cost, entry- level alternative for customers who don’t need the port capacity of the 8pEth100BaseT FP.

  • Page 32: Related Documents

    For information about Nortel Networks Multiservice Switch documentation suite, see NN10600-001 Nortel Networks Multiservice Switch 7400/15000/20000 Basics: Using the Documentation • NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description • For most of the software configuration procedures included in the task...

  • Page 33: How To Get More Help

    About this document 33 How to get more help For information on training, problem reporting, and technical support, see “Nortel Networks support services” section in NN10600-030 Nortel Networks Multiservice Switch 7400/15000/20000 Overview. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 34 About this document NN10600-175 6.1S2...

  • Page 35: Multiservice Switch 7420 Installation

    Chapter 1 Multiservice Switch 7420 installation Install a Nortel Networks Multiservice Switch 7420 in or beside a desk-top (desk-top or vertical-mount), or in a standard 19-inch rack or cabinet. • “Prerequisites to Multiservice Switch 7420 installation” (page 35) • “Multiservice Switch 7420 installation task flow” (page 36) •...
  • Page 36 36 Chapter 1 Multiservice Switch 7420 installation Multiservice Switch 7420 installation task flow This task flow shows you the sequence of procedures you perform to install Nortel Networks Multiservice Switch 7420. To link to any procedure, go to “Task flow navigation” (page 37). NN10600-175 6.1S2...
  • Page 37 Installing FP For procedure page cables numbers, see Task flow navigation PP_TASK_1010 below Task flow navigation The following references are listed alphabetically: • “Grounding a dc-powered Multiservice Switch 7420” (page 225) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 38 38 Chapter 1 Multiservice Switch 7420 installation • “Installing a Multiservice Switch 7420 into a rack or cabinet” (page 272) • “Installing a Multiservice Switch 7420 into a seismic rack or cabinet” (page 275) • “Installing a 13-inch termination panel on a Multiservice Switch 7420” (page 235) •...

  • Page 39: Multiservice Switch 7420 Replacement

    Chapter 2 Multiservice Switch 7420 replacement Replace a Nortel Networks Multiservice Switch 7420 if a non-replaceable component fails, for example, a fan failure or a failed power supply. • “Prerequisites to Multiservice Switch 7420 replacement” (page 39) • “Multiservice Switch 7420 replacement task flow” (page 40)
  • Page 40 40 Chapter 2 Multiservice Switch 7420 replacement • Before you can replace a shelf, you must assemble enough anti-static packaging to protect the processor cards, and clear an area large enough to temporarily store them. You also need to have appropriate packaging materials so that you can store or ship the removed shelf.
  • Page 41 FP? termination panel cables Switch 7420 (if necessary) Return the Testing ports Testing a bus Card testing shelf to service and interfaces (optional) (optional) after running all (optional) tests PP_TASK_1024 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 42 “Removing a Multiservice Switch 7420” (page 422) • “Removing a control processor” (page 416) • “Removing an FP” (page 441) • “Removing power cables” (page 447) • “Testing a bus”. See NN10600-520 Nortel Networks Multiservice Switch 7400/15000/20000 Fault and Performance Management: Troubleshooting. NN10600-175 6.1S2...
  • Page 43 Chapter 2 Multiservice Switch 7420 replacement 43 • “Testing ports and interfaces”. See NN10600-520 Nortel Networks Multiservice Switch 7400/15000/20000 Fault and Performance Management: Troubleshooting. • “Unpacking a Multiservice Switch 7420” (page 527) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 44 44 Chapter 2 Multiservice Switch 7420 replacement NN10600-175 6.1S2...

  • Page 45: Multiservice Switch 7440 Installation

    Chapter 3 Multiservice Switch 7440 installation Install a Nortel Networks Multiservice Switch 7440 on the floor or in a rack or cabinet. • “Prerequisites to Multiservice Switch 7440 installation” (page 45) • “Multiservice Switch 7440 installation task flow” (page 46) •...
  • Page 46 Multiservice Switch 7440” (page 326). Multiservice Switch 7440 installation task flow This task flow shows you the sequence of procedures to perform to install a Nortel Networks Multiservice Switch 7440. To link to any procedure, go to “Task flow navigation” (page 48). NN10600-175 6.1S2...
  • Page 47 Multiservice power cables power cable Switch 7440 Switch 7440 (optional) Installing a power supply into a Multiservice Switch 7440 Installing a control Install another processor power supply? Install another CP? PP_TASK_1011 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 48 48 Chapter 3 Multiservice Switch 7440 installation Figure 6 Multiservice Switch 7440 installation task flow: part 2 addition Powering up a Add another Multiservice Switch 7440 PP_TASK_1011 Task flow navigation The following references are listed alphabetically: • “FP addition” (page 151) •...
  • Page 49 Do not cut under the footprint of the unit. A 20.32 cm (8 sq. in.) opening can accommodate the cables for a Nortel Networks Multiservice Switch 7420 or Multiservice Switch 7440.
  • Page 50 50 Chapter 3 Multiservice Switch 7440 installation NN10600-175 6.1S2...

  • Page 51: Multiservice Switch 7440 Replacement

    Chapter 4 Multiservice Switch 7440 replacement Replace a Nortel Networks Multiservice Switch 7440 if a non-replaceable component breaks, for example, if you have bent pins on the backplane. • “Prerequisites to Multiservice Switch 7440 replacement” (page 51) • “Multiservice Switch 7440 replacement task flow” (page 52)
  • Page 52 Ensure that you have access to the required documents. Multiservice Switch 7440 replacement task flow This task flow shows you the sequence of procedures you do to replace a Nortel Networks Multiservice Switch 7440. To link to any procedure, go to “Task flow navigation” (page 55). NN10600-175 6.1S2...
  • Page 53 (if necessary) Removing a Unpacking a Floor Multiservice Multiservice mount? Switch 7440 Switch 7440 Installing a floor- Installing a mounted Multiservice Multiservice Switch 7440 into a Switch 7440 rack or cabinet PP_TASK_1025 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 54 54 Chapter 4 Multiservice Switch 7440 replacement Figure 8 Multiservice Switch 7440 replacement task flow: part 2 PP_TASK_1025 Installing a power supply into a ac or dc? Multiservice Switch 7440 Grounding a Installing dc power Installing ferrite dc-powered Installing an ac cables onto a beads onto dc Multiservice...
  • Page 55 Switch 7440” (page 408) • “Removing a 19-inch rack-mounted termination panel” (page 410) • “Removing a control processor” (page 416) • “Removing an FP” (page 441) • “Removing power cables” (page 447) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 56 56 Chapter 4 Multiservice Switch 7440 replacement • “Testing a bus”. See NN10600-520 Nortel Networks Multiservice Switch 7400/15000/20000 Fault and Performance Management: Troubleshooting. • “Testing ports and interfaces”. See NN10600-520 Nortel Networks Multiservice Switch 7400/15000/20000 Fault and Performance Management: Troubleshooting.

  • Page 57: Multiservice Switch 7460 Installation

    Chapter 5 Multiservice Switch 7460 installation Install a Nortel Networks Multiservice Switch 7460 in a cabinet or standard 19-inch rack. • “Prerequisites to Multiservice Switch 7460 installation” (page 57) • “Multiservice Switch 7460 installation task flow” (page 58) • “Multiservice Switch 7460 installation supporting information”...
  • Page 58 MSS 3496 001 AA2 Multiservice Switch 7460 installation task flow This task flow shows you the sequence of procedures to perform to install a Nortel Networks Multiservice Switch 7460. To link to any procedure, go to “Task flow navigation” (page 61). NN10600-175 6.1S2...
  • Page 59 Installing a cable Install the power supply management Installing a control second power filler in a bracket on a processor supply? Multiservice Multiservice Switch 7460 Switch 7460 Install the second CP? PP_TASK_1110 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 60 60 Chapter 5 Multiservice Switch 7460 installation Figure 11 Multiservice Switch 7460 installation task flow: part 2 For procedure page numbers, see Task flow navigation below Installing an FP Powering up an Sparing any Install 8-slot Multiservice FPs? another FP? Switch 7460 MSA 32 FPs?
  • Page 61 “Installing dc power cables onto a Multiservice Switch 7460” (page 339) • “Installing ferrite beads onto dc power cables” (page 346) • “Installing FP cables” (page 349) • “Powering up a Multiservice Switch 7460” (page 397) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 62 “Site preparation for a seismic cabinet” (page 65) • “Site preparation for a 19-inch rack” (page 63) Site preparations for all installations As part of site preparation for installing Nortel Networks Multiservice Switch equipment, consider the following: • Space and environmental requirements are outlined in NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description.
  • Page 63 Sharp edges can damage cables. Therefore, smooth any rough edges around cutouts. Site preparation for a 19-inch rack You can install a Nortel Networks Multiservice Switch 7460 in standard 19- inch rack, see NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description.
  • Page 64 Multiservice Switch 7460. Ensure that your plan conforms to the cable specifications for the function processors (FPs) in your device. For more information, see the cable assembly information in NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. Figure 13...
  • Page 65 For dc installations, the distance from the power cord attachment to each device must be correct for its wire gauge and voltage drop. See dc power input and wiring regulations in NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade...
  • Page 66 66 Chapter 5 Multiservice Switch 7460 installation Figure 14 Floor space requirements for a seismic cabinet ° 31 in. (80 cm) ° 36 in. (90 cm) a minimum service clearance of 24 in. (60 cm) is required 24 in. (60 cm) Seismic protection Seismic protection features described in this section meet the Zone 4 seismic requirements of Telcordia NEBS GR-63-CORE.
  • Page 67 The outside-mount seismic anchoring kit requires you to attach two L-shaped brackets to the outside of the cabinet. You must then anchor the brackets to a concrete floor. You cannot provide seismic protection for a cabinet on a raised floor. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 68 68 Chapter 5 Multiservice Switch 7460 installation NN10600-175 6.1S2...
  • Page 69 Chapter 6 Multiservice Switch 7460 replacement Replace a Nortel Networks Multiservice Switch 7460 to remove and install a new shelf chassis when a non-replaceable component fails, such as bent pins on the backplane. • “Prerequisites to replacing a Multiservice Switch 7460” (page 69) •...
  • Page 70 Multiservice Switch 7460 replacement task flow This task flow shows you the sequence of procedures to perform to replace a Nortel Networks Multiservice Switch 7460. To link to any procedure, go to “Task flow navigation” on page 72. NN10600-175 6.1S2...
  • Page 71 Multiservice switch installation Switch 7460 Switch 7460 Switch 7460 Testing ports Testing a bus Card testing and interfaces (optional) (optional) (optional) Return the shelf to service after running all tests PP_TASK_1111 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 72 • “Removing a shelf interconnect cable” (page 439) • “Removing power cables” (page 447) • “Testing a bus”. See NN10600-520 Nortel Networks Multiservice Switch 7400/15000/20000 Fault and Performance Management: Troubleshooting. • “Testing ports and interfaces”. See NN10600-520 Nortel Networks Multiservice Switch 7400/15000/20000 Fault and Performance Management: Troubleshooting.
  • Page 73 Chapter 7 Multiservice Switch 7480 installation Install a Nortel Networks Multiservice Switch 7480 in a cabinet or standard 19” rack. • “Prerequisites to Multiservice Switch 7480 installation” (page 73) • “Multiservice Switch 7480 installation task flow” (page 74) • “Multiservice Switch 7480 installation supporting information”...
  • Page 74 See “Installing a multiport aggregate device” (page 268). Multiservice Switch 7480 installation task flow This task flow shows you the sequence of procedures to perform a Nortel Networks Multiservice Switch 7480. To link to any procedure, go to “Task flow navigation” (page 76).
  • Page 75 Installing an ac power cables Multiservice power cable (optional) Switch 7480 Installing a power supply into a Multiservice Switch 7480 Install another Installing a control power supply? processor Install another CP? PP_TASK_ 1012.ins Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 76 76 Chapter 7 Multiservice Switch 7480 installation Figure 17 Multiservice Switch 7480 installation task flow: part 2 addition Powering up a Add another Multiservice Switch 7480 PP_TASK_1012 Task flow navigation The following references are listed alphabetically: • “FP addition” (page 151) •...
  • Page 77 “Site preparation for a seismic cabinet” (page 80) • “Site preparation for a 19-inch rack” (page 78) Site preparations for all installations As part of site preparation for installing a Nortel Networks Multiservice Switch 7480, consider the following: • Space and environmental requirements as outlined in NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description.
  • Page 78 Sharp edges can damage cables. Therefore, smooth any rough edges around cutouts. Site preparation for a 19-inch rack You can install all Nortel Networks Multiservice Switch equipment in a standard 19-inch rack. Plan to run the cables to the nearest opening in a raised floor. A 20.32 cm sq.
  • Page 79 Floor space requirements for Multiservice Switch cabinets Door 1.5 m (5 ft) 90° (3.3 ft) (3.3 ft) Cabinet Cabinet Cabinet 90° Door 2.1 m (7 ft) Door 90° Cabinet Cabinet Cabinet 90° Door DCP70056 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 80 1.5 m (5 ft) of the electrical outlet. Do not use extension cords. For dc installations, the distance from the power cord attachment to each device must be correct for its wire gauge and voltage drop. See dc power input and wiring regulations in NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. NN10600-175 6.1S2...
  • Page 81 To provide seismic protection for your device, you must anchor the cabinet to the floor using either an outside-mount anchoring kit or an inside-mount anchoring kit. You must also install seismic hardware inside the cabinet. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 82 82 Chapter 7 Multiservice Switch 7480 installation The inside-mount seismic anchoring kit requires you to attach two L-shaped brackets to the inside of the cabinet. You must then anchor the brackets to a concrete floor. The inside-mount anchoring kit fully isolates the seismic brackets from the ground.

  • Page 83: Multiservice Switch 7480 Replacement

    Chapter 8 Multiservice Switch 7480 replacement Replace a Nortel Networks Multiservice Switch 7480 to remove and install a new shelf chassis when a non-replaceable component fails, such as bent pins on the backplane. • “Prerequisites to replacing a Multiservice Switch 7480” (page 83) •...
  • Page 84 (page 539) for FP and CP handling instructions. • Some of the procedures in this task are located in NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures, so ensure that you have a copy of this document available.
  • Page 85 Removing a cooling unit from interconnect cable Multiservice a Multiservice (if necessary) Switch 7480 Switch 7480 Unpacking a Installing a Grounding a Multiservice Multiservice Multiservice Switch 7480 Switch 7480 Switch 7480 PP_TASK_1026.ins Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 86 86 Chapter 8 Multiservice Switch 7480 replacement Figure 21 Multiservice Switch 7480 replacement taskflow: part 2 Installing a cooling Installing a shelf unit into a interconnect cable ac or dc? Multiservice 7480 (if necessary) Installing ferrite Installing dc power beads onto dc Installing an ac cables onto a power cables...
  • Page 87 “Removing a Multiservice Switch 7480” (page 430) • “Removing a control processor” (page 416) • “Removing an FP” (page 441) • “Removing a shelf interconnect cable” (page 439) • “Removing power cables” (page 447) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 88 88 Chapter 8 Multiservice Switch 7480 replacement • “Testing a bus”. See NN10600-520 Nortel Networks Multiservice Switch 7400/15000/20000 Fault and Performance Management: Troubleshooting. • “Testing ports and interfaces”. See NN10600-520 Nortel Networks Multiservice Switch 7400/15000/20000 Fault and Performance Management: Troubleshooting.
  • Page 89 Chapter 9 Air filter replacement Replace the air filter in Nortel Networks Multiservice Switch equipment every three months as part of regular maintenance. Air filter replacement task flow This task flow shows you the sequence of procedures you do to replace an air filter.
  • Page 90 90 Chapter 9 Air filter replacement Figure 22 Air filter replacement task flow For procedure page Air filter numbers, see replacement Task flow navigation below Which switch? Multiservice Switch 7480 Multiservice Switch 7440 Multiservice Switch 7460 Replacing the air Replacing the air Replacing the air filter in a filter in a...

  • Page 91: Alarm Hardware Installation

    Chapter 10 Alarm hardware installation Install alarm hardware on Nortel Networks Multiservice Switch equipment to monitor hardware-related alarms raised by the device, or by an external alarm. • “Prerequisites to alarm hardware installation” (page 91) • “Alarm hardware installation task flow” (page 91)
  • Page 92 92 Chapter 10 Alarm hardware installation Figure 23 Alarm hardware installation task flow Alarm hardware For procedure page installation numbers, see Task flow navigation below Display alarms at the switch or externally? at switch externally Is the Multiservice Switch 7460 or Multiservice Switch 7480 in a cabinet? Installing a...
  • Page 93 (page 245) • “Installing a rack-mounted alarm panel / power and alarm panel” (page 304) • “Installing a shelf interconnect cable” (page 307) • “Installing an external alarm cable” (page 317) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 94 94 Chapter 10 Alarm hardware installation NN10600-175 6.1S2...

  • Page 95: Alarm Hardware Replacement

    Alarm hardware replacement task flow This task flow shows you the sequence of procedures you do to replace alarm hardware. To link to any procedure, go to “Task flow navigation” (page 96). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 96 96 Chapter 11 Alarm hardware replacement Figure 24 Alarm hardware replacement task flow PP_TASK_1020 For procedure page numbers, see Alarm hardware Task flow navigation replacement below Type of alarm hardware? rack-mounted alarm panel door alarm cable shelf interconnect cable external alarm cable Removing a rack Removing a Replacing an...
  • Page 97 Chapter 11 Alarm hardware replacement 97 • “Removing a rack-mounted alarm panel / power and alarm panel” (page 437) • “Removing a shelf interconnect cable” (page 439) • “Replacing the external alarm cable” (page 502) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 98 98 Chapter 11 Alarm hardware replacement NN10600-175 6.1S2...

  • Page 99: Bits Cable Replacement

    BITS cable replacement task flow This task flow shows you the sequence of procedures you do to replace a BITS cable. To link to any procedure, go to “Task flow navigation” (page 100). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 100 Task flow navigation The following references are listed alphabetically: • “Installing CP cables for BITS” (page 329) • “Locking external timing ports”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Removing CP cables for BITS” (page 444) •...

  • Page 101: Bits Termination Panel Replacement

    BITS termination panel replacement task flow This task flow shows you the sequence of procedures you do to replace a BITS termination panel. To link to any procedure, go to “Task flow navigation” (page 102). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 102 • “Installing a BITS wire” (page 242) • “Installing CP cables for BITS” (page 329) • “Locking external timing ports”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Removing a 13-inch termination panel from a Multiservice Switch 7420” (page 406)
  • Page 103 “Removing a 13-inch termination panel from a Multiservice Switch 7440” (page 408) • “Removing a 19-inch rack-mounted termination panel” (page 410) • “Unlocking external timing ports”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 104 104 Chapter 13 BITS termination panel replacement NN10600-175 6.1S2...

  • Page 105: Cabinet Installation

    Chapter 14 Cabinet installation Install a cabinet to house one or more Nortel Networks Multiservice Switch devices, a Multiservice Switch 7460, or their associated termination panels. • “Prerequisites to cabinet installation” (page 105) • “Cabinet installation task flow” (page 105) Prerequisites to cabinet installation Complete site preparations as described in “Site preparation”...
  • Page 106 106 Chapter 14 Cabinet installation Figure 27 Cabinet installation task flow PP_TASK_1009 Cabinet installation For procedure page numbers, see Task flow navigation below Multiservice Switch cabinet or Seismic cabinet? Multiservice Switch cabinet Seismic cabinet Preparing the floor for Preparing the floor for a Multiservice Switch a seismic cabinet cabinet...
  • Page 107 “Removing a Multiservice Switch cabinet from a pallet” (page 432) • “Unpacking a horizontally-packaged cabinet” (page 524) • “Unpacking a vertically-packaged cabinet” (page 541) • “Unpacking and removing a seismic cabinet from a pallet” (page 545) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 108 108 Chapter 14 Cabinet installation NN10600-175 6.1S2...

  • Page 109: Cable Replacement

    Cable replacement task flow This task flow shows you the tasks that you must use to replace different types of cables. To link to any task flow, go to “Task flow navigation” (page 111). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 110 110 Chapter 15 Cable replacement Figure 28 Cable replacement task flow For procedure page PP_TASK_1044 numbers, see Task flow navigation below Cable replacement Failed function Failure processor cable replacement Failure or FP cable? upgrade Function processor Upgrade cable upgrade Alarm or shelf Alarm hardware interconnect replacement...
  • Page 111 • “Failed FP cable replacement” (page 135) • “FP cable upgrade” (page 139) • “Local operator terminal replacement” (page 171) • “Modem replacement” (page 177) • “Power cable replacement” (page 183) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 112 112 Chapter 15 Cable replacement NN10600-175 6.1S2...

  • Page 113: Card Cable Routing And Labeling

    Whenever you label a cable with D-sub connectors, ensure that you identify the appropriate series of ports that it handles at the FP, each cable junction, and the far end (for example, a termination or sparing panel). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 114 114 Chapter 16 Card cable routing and labeling Card cable routing and labeling task flow This task flow shows you the sequence of procedures you do to route and label processor card cables. To link to any procedure, go to “Task flow navigation”...
  • Page 115 “Routing card cables on a Multiservice Switch 7440” (page 512) • “Routing card cables on a Multiservice Switch 7460” (page 514) • “Routing card cables on a Multiservice Switch 7480” (page 516) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 116 116 Chapter 16 Card cable routing and labeling NN10600-175 6.1S2...

  • Page 117: Control Processor Addition

    Chapter 17 Control processor addition Add a control processor (CP) to a single-CP Nortel Networks Multiservice Switch device to provide redundancy. • “Prerequisites to control processor addition” (page 117) • “Control processor addition task flow” (page 117) Prerequisites to control processor addition...
  • Page 118 PP_TASK_1032 Task flow navigation The following references are listed alphabetically: • “Configuring a new processor card”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Configuring CP equipment sparing”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures.
  • Page 119 See “Unpacking a processor card” (page 539) for FP and CP handling instructions. • Some of the procedures in this task are not located in this document. Ensure that you have access to the required documents. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 120 120 Chapter 18 Control processor upgrade • Ensure that the appropriate level of software is installed on the device for the CP features you require. For example, if you are installing a CP-with- BITS, you will require a minimum software release of PCR4.2; if you will use the external timing functionality (BITS) you will require a minimum software release of PCR5.1.
  • Page 121 (standby) Removing a Installing a control control processor processor Installing a control Replace processor another CP? StartUp overview Switching between active and standby processor cards Multiservice Switch Node Recovery PP_TASK_ 1002.ins Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 122 122 Chapter 18 Control processor upgrade Task flow navigation The following references are listed alphabetically: • “Deleting BITS ports on a Multiservice Switch 7400”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Installing a control processor” (page 254) •...

  • Page 123: Cooling Unit Replacement

    Chapter 19 Cooling unit replacement Replace a cooling unit in a Nortel Networks Multiservice Switch device if the cooling unit or one of its fans fails. • “Cooling unit replacement prerequisites” (page 123) • “Cooling unit replacement task flow” (page 123)
  • Page 124 124 Chapter 19 Cooling unit replacement Figure 32 Cooling unit replacement task flow For procedure page Cooling unit numbers, see replacement Task flow navigation below Which switch? Multiservice Switch 7460 Multiservice Switch 7440 Multiservice Switch 7480 Removing the Removing the Removing the cooling unit from cooling unit from...
  • Page 125 Chapter 19 Cooling unit replacement 125 • “Removing the cooling unit from a Multiservice Switch 7460” (page 458) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 126 126 Chapter 19 Cooling unit replacement NN10600-175 6.1S2...

  • Page 127: Cp Ethernet Cable Replacement

    • If the cable is being used to connect to a Nortel Networks Multiservice Data Manager workstation, removing the cable drops communication unless both the active and standby CP Ethernet ports are connected to a...
  • Page 128 128 Chapter 20 CP Ethernet cable replacement hub or IP router. See OAM Ethernet port sparing in NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. CP Ethernet cable replacement task flow This task flow shows you the sequence of procedures you do to replace a CP Ethernet cable.
  • Page 129 “Enabling CP switchover for a CP OAM Ethernet port failure”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Installing a CP Ethernet cable” (page 262) • “Removing a CP Ethernet cable” (page 420) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 130 130 Chapter 20 CP Ethernet cable replacement NN10600-175 6.1S2...

  • Page 131: External Timing Addition

    External timing addition task flow This task flow shows you the sequence of procedures you do to add external timing functionality. to link to any procedure, go to “Task flow navigation” (page 132). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 132 Make a BITS wire wire Configuring an external timing source Configuring NS PP_TASK_1007 Task flow navigation The following references are listed alphabetically: • “Configuring an external timing source”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. NN10600-175 6.1S2...
  • Page 133 “Installing a 13-inch termination panel on a Multiservice Switch 7440” (page 238) • “Installing a 19-inch rack-mounted termination panel” (page 240) • “Installing a BITS wire” (page 242) • “Installing CP cables for BITS” (page 329) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 134 134 Chapter 21 External timing addition NN10600-175 6.1S2...

  • Page 135: Failed Fp Cable Replacement

    This task flow shows you the sequence of procedures you do to replace a cable connected to an FP or its related termination panel. To link to any procedure, go to “Task flow navigation” (page 137). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 136 Removing FP cables Removing FP cables Installing FP cables Installing FP cables Unlocking a port Unlocking a function processor Clearing a switch request on Multiservice Switching between Switch 7400 active and standby processor cards (if necessary) PP_TASK_1112 NN10600-175 6.1S2...
  • Page 137 Chapter 22 Failed FP cable replacement 137 Task flow navigation The following references are listed alphabetically: • “Clearing a switch request on Multiservice Switch 7400”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Installing FP cables” (page 349) •...
  • Page 138 138 Chapter 22 Failed FP cable replacement NN10600-175 6.1S2...

  • Page 139: Fp Cable Upgrade

    Locking a port configured with intra-card APS causes active lines to transfer traffic to the other port. During switchover, up to up to 50 milliseconds of traffic can be lost. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 140 140 Chapter 23 FP cable upgrade • Some of the procedures in this task are not located in this document. Ensure that you have access to the required documents. FP cable upgrade task flow This task flow shows you the sequence of procedures you do to upgrade a cable connected to an FP or its related termination panel.
  • Page 141 Installing FP cables Installing FP cables Unlocking a port Unlocking a Clearing a switch function request on a processor Multiservice Switch 7400 Switching between active and standby processor cards (if necessary) PP_TASK_1113 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 142 142 Chapter 23 FP cable upgrade Task flow navigation The following references are listed alphabetically: • “Clearing a switch request on a Multiservice Switch 7400.” See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Removing FP cables” (page 445) •...

  • Page 143: Failed Control Processor Replacement

    Some of the procedures in this task are not located in this document. Ensure that you have access to the required documents. • See “Unpacking a processor card” (page 539) for FP and CP handling instructions. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 144 144 Chapter 24 Failed control processor replacement • Ensure that the replacement CP has the same product code or the same product code with a compatible vintage. • If you are replacing a failed CP with an different version, follow the procedures in the section “Control processor upgrade”...
  • Page 145 PP_TASK_1014.ins Task flow navigation The following references are listed alphabetically: • “Basic node setup”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Installing a control processor” (page 254) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 146 146 Chapter 24 Failed control processor replacement • “Multiservice Switch Node Recovery”. See 241-6001-807 Nortel Networks Multiservice Data Manager Network Backup and Restore. • “Removing a control processor” (page 416) • “Resetting the alarm hardware” (page 506) • “StartUp overview”. See NN10600-271 Nortel Networks Multiservice Switch 7400/15000/20000 Network Management Connectivity.
  • Page 147 In order to replace an FP, a software operator and hardware installer must coordinate their activities. Failure to do so can result in service interruptions. Whenever possible, schedule upgrades and replacements of spared FPs during maintenance windows. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 148 FP does not operate and its status LED shows solid amber. If a replaced FP shows solid amber, use the procedure for comparing the card type of an inserted card and its configured slot in NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures.
  • Page 149 “Card testing”. See NN10600-520 Nortel Networks Multiservice Switch 7400/15000/20000 Fault and Performance Management: Troubleshooting. • “Configuring a new processor card”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Installing an FP” (page 321) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 150 150 Chapter 25 Failed function processor replacement • “Installing FP cables” (page 349) • “Locking a function processor”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Removing an FP” (page 441) • “Resetting the alarm hardware” (page 506) •...

  • Page 151: Fp Addition

    The DS1 or E1 MSA 1-slot FPs can replace or spare the equivalent 2-slot FPs (or vice versa). Ensure that the FPs you are going to add do not conflict with other FPs already in service. For more Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 152 FP does not operate and its status LED shows solid amber. If an added FP shows solid amber, use the procedure for comparing the card type of an inserted card and its configured slot in NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures.
  • Page 153 The following task flows show you the sequence of procedures you do to add an FP to a shelf. To link to any procedure, go to “Task flow navigation” (page 156). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 154 154 Chapter 26 FP addition Figure 39 FP addition task flow: part 1 For procedure page numbers, see Remove other Task flow navigation addition FP from slot? decommissioning below Removing a blank processor card Is added FP to be in a sparing configuration? Install Installing a...
  • Page 155 Card testing (optional) Configuring a new All FPs processor card installed? Installing FP cables Activating Adding an LP and Adding an LPT configuration linking it to an (if necessary) changes PP_TASK_1003 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 156 “Activating configuration changes”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Adding an LP and linking it to an LPT”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Adding an LPT”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures.
  • Page 157 Chapter 26 FP addition 157 • “Installing multiple MSA32 sparing panels (DB15 or BNC)” (page 356) • “Installing multiple MSA32 sparing panels (RJ-45)” (page 360) • “Removing a blank processor card” (page 411) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 158 158 Chapter 26 FP addition NN10600-175 6.1S2...

  • Page 159: Fp Decommissioning

    FP decommissioning task flow This task flow shows you the sequence of procedures you do to decommission one or more FPs. To link to any procedure, go to “Task flow navigation” (page 160). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 160 FP PP_TASK_1030 Task flow navigation The following references are listed alphabetically: • “Decommissioning an FP”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Installing a blank processor card” (page 243) NN10600-175 6.1S2...
  • Page 161 Switch 7420” (page 406) • “Removing a 13-inch termination panel from a Multiservice Switch 7440” (page 408) • “Removing a 19-inch rack-mounted termination panel” (page 410) • “Removing an FP” (page 441) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 162 162 Chapter 27 FP decommissioning NN10600-175 6.1S2...

  • Page 163: Function Processor Upgrade

    Unspared FPs, including FPs configured with intra-card APS (port-to-port sparing on a single FP), will experience a loss of service on any active ports for the time it takes to replace the FP. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 164 2-slot FPs (or vice versa). Ensure that the FPs you are going to add do not conflict with other FPs already in service. For more information about operational compatibilities, see NN10600-551 Nortel Networks Multiservice Switch 7400/15000/20000 FP Configuration Reference for the descriptions of your FP selection.
  • Page 165 1-slot FPs do not have optical ports and these are configured in software. When doing this kind of replacement, you must reconfigure the left slot with the different card type and decommission the right slot. Configuration information for the card types is in NN10600-551 Nortel Networks Multiservice Switch 7400/15000/20000 FP Configuration Reference.
  • Page 166 166 Chapter 28 Function processor upgrade Function processor upgrade task flow This task flow shows you the sequence of procedures you do to upgrade an FP. To link to any procedure, go to “Task flow navigation” (page 169). NN10600-175 6.1S2...
  • Page 167 FP decommissioning processor card (if necessary) Activating configuration Installing a blank changes processor card (if necessary) Removing an FP Unlocking a Installing Installing Card testing function an FP FP cables (optional) processor Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 168 168 Chapter 28 Function processor upgrade Figure 43 Function processor upgrade task flow: part 2 For procedure page numbers, see Task flow navigation below Is FP already at standby? Locking a function Switching between addition processor active and standby (standby) processor cards Is an MSA 1-slot FP replacing an...
  • Page 169 “Switching between active and standby processor cards”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Unlocking a function processor”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 170 170 Chapter 28 Function processor upgrade NN10600-175 6.1S2...

  • Page 171: Local Operator Terminal Replacement

    Local operator terminal task flow This task flow shows you the sequence of procedures you do to replace a local operator terminal. To link to any procedure, go to “Task flow navigation” (page 172). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 172 Switch 7400 PP_TASK_1027.ins Task flow navigation The following references are listed alphabetically: • “Connecting a local operator terminal to a Multiservice Switch 7400” (page 221) • “Disconnecting a local operator terminal or modem from a device” (page 224) NN10600-175 6.1S2...

  • Page 173: Modem Installation

    Modem installation task flow This task flow shows you the sequence of procedures you do to install a modem. To link to any procedure, go to “Task flow navigation” (page 174). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 174 174 Chapter 30 Modem installation Figure 45 Modem installation task flow Modem installation Setting the modem dip switches Configuring the modem software Connecting the cable between the modem and a device PP_TASK_1013.ins Task flow navigation The following references are listed alphabetically: •...
  • Page 175 Modem installation supporting information Modem selection You do not need to configure any Nortel Networks Multiservice Switch software in order to connect a modem to the CP. However, you must be able to configure the modem and assemble the cable in accordance with the information contained in the following sections: •...
  • Page 176 176 Chapter 30 Modem installation Table 1 Pinout for the DB 9-pin connecting to the modem DB 25-pin Signal name of the device to modem Direction at 9-pin 25-pin the device transmitted data [TXD] / received data (Rx) input received data [RXD] / transmitted data (Tx) output data terminal ready [DTR] / data carrier input detect (CD)

  • Page 177: Modem Replacement

    Modem replacement task flow This task flow shows you the sequence of procedures you do to replace a modem. To link to any procedure, go to “Task flow navigation” (page 178). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 178 178 Chapter 31 Modem replacement Figure 46 Modem replacement task flow Modem replacement Disconnecting a local operator terminal or modem from a device Modem installation task flow PP_TASK_1028.ins Task flow navigation The following references are listed alphabetically: • “Disconnecting a local operator terminal or modem from a device” (page 224) •...

  • Page 179: Multiport Aggregate Device Replacement

    Multiport aggregate device replacement task flow This task flow shows you the sequence of procedures you do to replace a multiport aggregate device. To link to any procedure, go to “Task flow navigation” (page 180). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 180 Task flow navigation The following references are listed alphabetically: • “Installing a multiport aggregate device” (page 268) • “Locking a port”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Removing a multiport aggregate device” (page 421) •...

  • Page 181: Multiservice Switch Cabinet Door Removal And Installation

    Multiservice Switch cabinet door removal and installation Remove and install a door on a Nortel Networks Multiservice Switch cabinet to allow to devices for performing maintenance tasks, to move the door hinge from one side to the other, or to repair or replace the cabinet door.
  • Page 182 182 Chapter 33 Multiservice Switch cabinet door removal and installation Figure 48 Multiservice Switch cabinet door removal and installation task flow Multiservice Switch cabinet door removal and installation Removing a Removing a cabinet door alarm cabinet door cable Moving a door move hinge to hinge to the other other side?

  • Page 183: Power Cable Replacement

    Power cable replacement task flow This task flow shows you the sequence of procedures you do to replace a power cable. To link to any procedure, go to “Task flow navigation” (page 185). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 184 184 Chapter 34 Power cable replacement Figure 49 Power cable replacement task flow For procedure page numbers, see Task flow navigation Power cable Removing power below replacement cables PP_TASK_1023 ac or dc? Which switch? Installing an ac power cable Multiservice Switch 7440 Multiservice Switch 7460 Multiservice Switch 7480 Multiservice Switch 7420...
  • Page 185 “Installing dc power cables onto a Multiservice Switch 7480” (page 343) • “Installing ferrite beads onto dc power cables” (page 346) • “Removing power cables” (page 447) • “Turning on power” (page 522) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 186 186 Chapter 34 Power cable replacement NN10600-175 6.1S2...

  • Page 187: Power Supply Addition

    Power supply addition task flow This task flow shows you the sequence of procedures you do to add a power supply. To link to any procedure, go to “Task flow navigation” (page 188). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 188 188 Chapter 35 Power supply addition Figure 50 Power supply addition task flow Power supply For procedure page addition numbers, see Task flow navigation below Which switch? Multiservice Switch 7440 Multiservice Switch 7460 Multiservice Switch 7480 Installing dc power dc or ac? ac or dc? cables onto a Multiservice Switch...
  • Page 189 “Installing dc power cables onto a Multiservice Switch 7460” (page 339) • “Installing dc power cables onto a Multiservice Switch 7480” (page 343) • “Installing ferrite beads onto dc power cables” (page 346) • “Turning on power” (page 522) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 190 190 Chapter 35 Power supply addition NN10600-175 6.1S2...

  • Page 191: Power Supply Replacement

    Verletzungsgefahr durch Elektroschock Die Stromversorgungseinheit bedarf keiner Wartung, da darin keine wartungsbedürftigen Teile enthalten sind. Um Verletzungen durch potenziell gefährliche Stromspannungen zu vermeiden, sollten Sie die Stromversorgungseinheit zur Wartung an das Werk einschicken. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 192 For information about minimum and redundant power configurations, see NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. CAUTION Risk of equipment damage You must not install one ac power supply and one dc power supply in the same Multiservice Switch device.
  • Page 193 “Installing a power supply into a Multiservice Switch 7480” (page 301) • “Installing a power supply in a Multiservice Switch 7460” (page 296) • “Removing the power supply from a Multiservice Switch 7440” (page 466) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 194 194 Chapter 36 Power supply replacement • “Removing the power supply from a Multiservice Switch 7480” (page 474) • “Removing the power supply from a Multiservice Switch 7460” (page 471) • “Turning on power” (page 522) NN10600-175 6.1S2...

  • Page 195: Sparing Addition

    There are two types of sparing panels, single and modular. Single sparing panels are used for sparing most types of FPs. Modular sparing panels are used for sparing 32-port multi-service access (MSA32) DS1 or E1 FPs. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 196 • If you install termination panels in the back of a seismic cabinet containing Nortel Networks Multiservice Switch 7480s, leave some rack space between the termination panels for each device This space aids airflow through the cabinet and provides space for cables.
  • Page 197 Adding an LPT Adding an LP and configuration (if necessary) linking it to an LPT changes Switching between active and standby Installing FP Card testing processor cards cables (optional) (if necessary) PP_TASK_1006 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 198 “Activating configuration changes”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Adding an LP and linking it to an LPT”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Adding an LPT”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures.

  • Page 199: Termination Or Sparing Panel Replacement

    If you replace termination or sparing panels in the back of a seismic cabinet containing Nortel Networks Multiservice Switch 7480s, leave some rack space between the termination panels for each device. This space aids airflow through the cabinet and provides space for cables. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 200 200 Chapter 38 Termination or sparing panel replacement • Before you start, ensure that each cable connected to the panel is labeled to indicate where it connects to the faceplate. • If cables are connected incorrectly, the device raises one or more alarms. Termination or sparing panel replacement task flow This task flow shows you the sequence of procedures you do to replace a termination panel.
  • Page 201 Re-enabling an LP cables termination panel Installing a Installing an Switching between Multiservice MSA32 sparing active and Switch cabinet panel cable cover standby door (if necessary) processor cards (if necessary) PP_TASK_1018 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 202 “Installing a Multiservice Switch cabinet door” (page 291) • “Installing FP cables” (page 349) • “Re-enabling an LP”. See NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. • “Removing a 13-inch termination panel from a Multiservice Switch 7420” (page 406) •...

  • Page 203: Hardware Procedures

    Bolt the brackets to the outside of the front and back of the cabinet using the eight bolts provided. See “Anchoring a seismic cabinet using an inside-mount anchoring kit” (page 205). Ensure that the brackets curve under the cabinet. Carefully slide the cabinet into position. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 204 204 Chapter 39 Hardware procedures Tip the cabinet again and place an isolator pad over each set of anchor holes. Ensure that each isolator pad mirrors the placement of each bracket. Remove the nut, the flat washer, and the load indicating washer from the top of an anchor.
  • Page 205 Chapter 39 Hardware procedures 205 Procedure job aid Figure 54 Anchoring a seismic cabinet using an inside-mount anchoring kit load indicating washer flat washer plate washer isolation bushing seismic bracket isolator pad anchor PPT_2122_001_AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 206: Anchoring A Seismic Cabinet Using An Outside-Mount Anchoring Kit

    206 Chapter 39 Hardware procedures Anchoring a seismic cabinet using an outside-mount anchoring kit Anchor a seismic cabinet using an outside-mount anchoring kit to achieve NEBS compliance. Prerequisites • You need an outside-mount anchoring kit with PEC NTFN37. Procedure steps Drill the holes for each of the anchors.
  • Page 207 #1/2-13 bolt casters outside-mount seismic bracket vertical levelers mounting angles Carefully slide the cabinet into position. Tap an anchor into each anchor hole. Tighten each anchor using a socket wrench. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 208: Avoiding Damage From Static Electricity

    • “Multiservice Switch 7480 ESD jack location” (page 212) Nortel Networks provides an antistatic wrist strap with each device. If a device is installed in a cabinet or rack with another device that has an antistatic wrist strap attached to it, you do not need to install a second one.
  • Page 209 Chapter 39 Hardware procedures 209 Procedure job aid Figure 56 Multiservice Switch 7420 ESD jack location PPT 3221 001 AB Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 210 210 Chapter 39 Hardware procedures Figure 57 Multiservice Switch 7440 ESD jack location PPT 0924 001 AA NN10600-175 6.1S2...
  • Page 211 Chapter 39 Hardware procedures 211 Figure 58 Multiservice Switch 7460 ESD jack location Shelf assembly ESD jack MSS 3496 001 AC2 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 212 212 Chapter 39 Hardware procedures Figure 59 Multiservice Switch 7480 ESD jack location jack NN10600-175 6.1S2...

  • Page 213: Changing Fasteners On An Msa32 Sparing Panel

    “MSA32 sparing panel cable connector screws” (page 216). Where each stud fastener was removed, add an 11/64-inch (4.4-mm) hex fastener from the installation kit. Tighten each hex fastener to snug (no Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 214 214 Chapter 39 Hardware procedures extra turns) until the bottom of the hex shank is flush against the face of the panel. Procedure job aid Figure 60 Location of MSA32 connectors to have screws changed on a 1:1 configuration Sparing bus Sparing bus PPT 2933 001 AA NN10600-175 6.1S2...
  • Page 215 Chapter 39 Hardware procedures 215 Figure 61 Location of MSA32 connectors to have screws changed on the bottom 1:n sparing panel OBP0 OBP1 OBP2 OBP3 IBP0 IBP1 IBP2 IBP3 PPT 2933 002 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 216 216 Chapter 39 Hardware procedures Figure 62 MSA32 sparing panel cable connector screws Threaded hole for D-sub connector screw Hex shank Threads into sparing panel Capped stud for D-sub connector sliding latch Hex shank Threads into sparing panel PPT 2933 003 AA NN10600-175 6.1S2...

  • Page 217: Configuring The Modem Software

    AT&W0 (with a zero, writes the current configuration to non-volatile memory, NVRAM 0) • ATY0 (with a zero, uses NVRAM 0 as the default configuration) Disconnect the modem from the computer or terminal. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 218 218 Chapter 39 Hardware procedures While the modem is still powered, return its operation to dumb mode by setting DIP switch 8 back to off (up). Turn the modem off and on again to load the changes. NN10600-175 6.1S2...

  • Page 219: Connecting A Cable Between A Modem And A Device

    Plug the modem into a dedicated power outlet. Follow the instructions provided by the manufacturer of the modem. Plug the other end of the into the appropriate port on the modem. Follow the instructions provided by the manufacturer of the modem. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 220 220 Chapter 39 Hardware procedures Procedure job aid Figure 63 Control processor faceplate Ejector latch Locking latch V.24 DCE 9-pin D-type connector Pin Numbering Scheme V.24 DCE port LED status indicator for Ethernet port 12 3 4 5 6 7 8 10Base-T Ethernet port RJ45 connector LED status...

  • Page 221: Connecting A Local Operator Terminal To A Multiservice Switch 7400

    Connecting a local operator terminal to a Multiservice Switch 7400 Connect a local operator terminal to a Nortel Networks Multiservice Switch 7400 to manage the node locally. During initial commissioning, use this terminal to set up a connection to your network management system. Prerequisites •...
  • Page 222 222 Chapter 39 Hardware procedures If you do not plan to use a network management system, you can use your local operator terminal to provision the device. NN10600-175 6.1S2...
  • Page 223 Ejector latch Locking latch V.24 DCE local operator port 9-pin LED status indicator D-type connector for Ethernet port 10Base-T Ethernet port RJ45 connector LED status indicator Ejector latch PPT 0982 002 AC Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 224: Disconnecting A Local Operator Terminal Or Modem From A Device

    224 Chapter 39 Hardware procedures Disconnecting a local operator terminal or modem from a device Disconnect a local operator terminal or modem from a device if you no longer need to use the device or if you need to replace the cable. Procedure steps Disconnect the V.24 cable connected to port 1 on the faceplate of the CP by loosening the captive screws.

  • Page 225: Grounding A Dc-Powered Multiservice Switch 7420

    Ensure that you have read and fully understand the grounding requirements. For more information, see NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. If you use a terminal in your installation, you must ground both the outlet that provides power to the terminal and the cabinet or rack to the same distribution panel.
  • Page 226 226 Chapter 39 Hardware procedures Procedure job aid Figure 65 Grounding a dc power supply for a Multiservice Switch 7420 (+) Battery return (-) Battery -48V/-60V Ground Strain relief clip PPT 3221 012 AA NN10600-175 6.1S2...

  • Page 227: Grounding A Dc-Powered Multiservice Switch 7440

    Ensure that you have read and fully understand the grounding requirements. For more information, see NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. If you use a terminal in your installation, you must ground both the outlet that provides power to the terminal and the cabinet or rack to the same distribution panel.
  • Page 228 228 Chapter 39 Hardware procedures Procedure job aid Figure 66 Grounding a dc power supply for a Multiservice Switch 7440 Nut securing ground wire Secure cables here Ground wire #8 screw size, 10 AWG 90° ringlugs Battery – 48V/60V Battery return 10 AWG wiring PPT DCP50012 NN10600-175 6.1S2...

  • Page 229: Grounding A Dc-Powered Multiservice Switch 7460

    Ensure that you have read and fully understood the grounding requirements, as described in NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. If you use a terminal in your installation, you must ground both the outlet that provides power to the terminal and the cabinet or rack to the same distribution panel.
  • Page 230 230 Chapter 39 Hardware procedures Procedure job aid Figure 67 Grounding a Multiservice Switch 7460 to the site ground window Shelf assembly Post to fasten insulation shield Grounding stud Green and yellow cable with 1-hole lug 1-hole lug -BAT -BAT Terminal block PPT 3479 014 AA...

  • Page 231: Grounding A Multiservice Switch 7480

    Ensure that you have read and fully understand the grounding requirements. For more information, see NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. If you use a terminal in your installation, you must ground both the outlet that provides power to the terminal and the cabinet or rack to the same distribution panel.
  • Page 232 232 Chapter 39 Hardware procedures Procedure job aid Figure 68 Shelf assembly grounding stud Device ground NN10600-175 6.1S2...

  • Page 233: Grounding A Multiservice Switch Cabinet

    Chapter 39 Hardware procedures 233 Grounding a Multiservice Switch cabinet Ground a Nortel Networks Multiservice Switch cabinet to protect personnel and equipment. Procedure steps Use 6 gauge (.51 mm) wire with 1/8 in. lugs to connect the grounds from the cabinet and other equipment to the power distribution panel ground.
  • Page 234 234 Chapter 39 Hardware procedures Procedure job aid Figure 69 Multiservice Switch cabinet grounding points Grounding points DCP70094A Cabinet rear view NN10600-175 6.1S2...

  • Page 235: Installing A 13-Inch Termination Panel On A Multiservice Switch 7420

    Installing a 13-inch termination panel on a Multiservice Switch 7420 Install a 13” termination panel on the rear of a Nortel Networks Multiservice Switch 7420 if you do not want to install the termination panels in a rack or cabinet.
  • Page 236 236 Chapter 39 Hardware procedures Figure 70 Multiservice Switch 7420 termination panel mounting brackets PPT 3221 007 AA Position the termination panels so that the top most panel aligns with the top-most processor card. This arrangement simplifies cable routing. Align the holes at the top and bottom of the termination panel with the holes on the raised mounting brackets.
  • Page 237 Multiservice Switch 7420 termination panel installation PPT 3221 015 AA Repeat these steps for any remaining termination panels. Securely tighten the mounting screws for each termination panel with a flat-blade screw driver. Do not over tighten. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 238: Installing A 13-Inch Termination Panel On A Multiservice Switch 7440

    Installing a 13-inch termination panel on a Multiservice Switch 7440 Install a 13” termination panel on the rear of a Nortel Networks Multiservice Switch 7440 if you do not want to install the termination panels in a rack or cabinet.
  • Page 239 Note: Tip the top of the termination panel away from the cabinet only a minimum amount to clear the housing. Forcing the bottom of the termination panel against the cable manager can damage the cable manager. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 240: Installing A 19-Inch Rack-Mounted Termination Panel

    If you are installing the first termination panel, connect the grounding lead (supplied separately by Nortel Networks) to the top right securing screw. See the figure “Grounding 19” termination panels” (page 241). If you are installing the lowest termination panel in the rack, secure the bottom of the grounding strip and a ground wire to the rack with a screw.
  • Page 241 Chapter 39 Hardware procedures 241 Figure 73 Grounding 19” termination panels Termination panel ground wire (grounding lead) Termination panel grounding strips 4.4 cm (1.75 in.) Rack Termination panel PPT 0915 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 242: Installing A Bits Wire

    242 Chapter 39 Hardware procedures Installing a BITS wire Install a BITS wire from the site timing source to the BITS termination panel. Prerequisites • Test the signal strength at the end of the connection from the site source before connecting. The signal strength must be within the range indicated in ITU-T G703 or ANSI TI.102.

  • Page 243: Installing A Blank Processor Card

    Ensure the latch lock is fully disengaged by turning it counterclockwise by a 1/4 turn. Close and lock the latches. See the figure “Locking and unlocking processor card latches” (page 324). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 244 244 Chapter 39 Hardware procedures Procedure job aid Figure 74 Faceplate of a blank processor card Ejector latch Ejector latch PPT 0982 003 AA NN10600-175 6.1S2...

  • Page 245: Installing A Cabinet Door Alarm Cable For A Multiservice Switch

    Installing a cabinet door alarm cable for a Multiservice Switch Install a Nortel Networks Multiservice Switch cabinet alarm cable so that the LEDs on the door can display the alarm status of a Multiservice Switch 7460 or Multiservice Switch 7480.
  • Page 246 246 Chapter 39 Hardware procedures • “The door alarm connector for a Multiservice Switch 7460” (page 250) Procedure job aid Figure 75 Example of a door alarm cable 9-pin D-sub connector RJ-12 connector Pin 9 Pin 5 Part number label Pin 6 Pin 1 2.794 m...
  • Page 247 Chapter 39 Hardware procedures 247 Figure 76 Cabinet door alarm connector Trough for door alarm cable Door alarm connector Alarm cutoff control Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 248 248 Chapter 39 Hardware procedures Figure 77 Multiservice Switch 7480 alarm connectors Shelf interconnect cable Alarm 1 Alarm 2 external alarm shelf connector connector Door alarm Cooling unit connector power connector PPT 2179 001 AA NN10600-175 6.1S2...
  • Page 249 Chapter 39 Hardware procedures 249 Figure 78 Door alarm connectors for a Multiservice Switch 7480 Do not use door alarm connectors for telephones. Front door PPT 0884 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 250 250 Chapter 39 Hardware procedures Figure 79 The door alarm connector for a Multiservice Switch 7460 Shelf assembly Alarm 1 for the external alarm cable Alarm 2 for the door alarm cable of a cabinet MSS 3479 015 AA NN10600-175 6.1S2...

  • Page 251: Installing A Cable Management Bracket On A Multiservice Switch 7460

    Chapter 39 Hardware procedures 251 Installing a cable management bracket on a Multiservice Switch 7460 Install an Nortel Networks Multiservice Switch 7480 before installing any processor cards or cables. Prerequisites • You need a cable management brackets with PEC NTPS21.
  • Page 252 252 Chapter 39 Hardware procedures Procedure job aid Figure 80 Cable management bracket for a Multiservice Switch 7460 Captive screw Cable management bracket Cable support arm Captive screw PPT 3479 005 AA NN10600-175 6.1S2...
  • Page 253 Chapter 39 Hardware procedures 253 Figure 81 Exploded view of a cable management bracket for a Multiservice Switch 7460 Shelf assembly Captive screw Cable management bracket PPT 3479 008 AA2 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 254: Installing A Control Processor

    Switch 7440, slot 0 is the bottom slot. In any vertically mounted device, slot 0 is the left-most slot.C • The bottom of a Multiservice Switch 7400 series FP is typically where the status LED is located. • Follow “Avoiding damage from static electricity” (page 208) to protect the unit from damage by ESD or from transferring ESD to other hardware.
  • Page 255 (page 326). Connect any CP cables as necessary. See “Connecting a local operator terminal to a Multiservice Switch 7400” (page 221); “Installing a CP Ethernet cable” (page 262); or “Installing CP cables for BITS” (page 329). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 256: Installing A Cooling Unit Into A Multiservice Switch 7440

    256 Chapter 39 Hardware procedures Installing a cooling unit into a Multiservice Switch 7440 Install a cooling unit into a Nortel Networks Multiservice Switch 7440 after you remove the failed unit. Prerequisites • You need a cooling unit with PEC NTEP14BA.

  • Page 257: Installing A Cooling Unit Into A Multiservice Switch 7460

    Chapter 39 Hardware procedures 257 Installing a cooling unit into a Multiservice Switch 7460 Install the cooling unit of an Nortel Networks Multiservice Switch 7460 to provide optimum airflow for the heat from the processor cards and power supplies. Prerequisites •...
  • Page 258 258 Chapter 39 Hardware procedures Procedure job aid Figure 82 The cooling unit of a Multiservice Switch 7460 with its air filter Air filter P0609614 Faceplate Power input connector Status LED Cooling unit Front airflow grill Fan number 4 Captive screw PPT 3479 001 AA3 NN10600-175 6.1S2...
  • Page 259 Chapter 39 Hardware procedures 259 Figure 83 Exploded view of the cooling unit and a Multiservice Switch 7460 Shelf assembly Captive screw Intake airflow grill Cooling unit PPT 3479 009 AA2 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 260: Installing A Cooling Unit Into A Multiservice Switch 7480

    260 Chapter 39 Hardware procedures Installing a cooling unit into a Multiservice Switch 7480 Install a new cooling unit into a Nortel Networks Multiservice Switch 7480 no more than ten minutes after removing a cooling unit. Prerequisites • You need a cooling unit with PEC NTBP07.
  • Page 261 Chapter 39 Hardware procedures 261 Procedure job aid Figure 84 Installing a cooling unit Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 262: Installing A Cp Ethernet Cable

    • If the CP is not spared, have the software operator disable the SwitchoveronFailure attribute as described in the section “Disabling CP switchover for a CP OAM Ethernet port failure” in NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures.
  • Page 263 Scheme V.24 DCE port LED status indicator for Ethernet port 12 3 4 5 6 7 8 10Base-T Ethernet port RJ45 connector LED status indicator Ejector latch PPT 0982 002 AB Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 264: Installing A Desk-Top Mounted Multiservice Switch 7420

    264 Chapter 39 Hardware procedures Installing a desk-top mounted Multiservice Switch 7420 Install a desk-top mount Nortel Networks Multiservice Switch 7420 on any flat surface, preferably a sturdy desk or table. Prerequisites • You need a desk mount kit with PEC NTHQ05.
  • Page 265 Position the chassis according to the site plan. Attach the cable guide to the fan-less side of the chassis using the hardware provided. See “Cable guide on desk-top mounted Multiservice Switch 7420” (page 266). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 266 266 Chapter 39 Hardware procedures Figure 87 Cable guide on desk-top mounted Multiservice Switch 7420 Cable guide PPT 3221 014 AA Insert a blank processor card into each slot that does not have a processor card. Ensure that there is sufficient clearance for data cables and power cable. NN10600-175 6.1S2...

  • Page 267: Installing A Floor-Mounted Multiservice Switch 7440

    Securing the feet to the bottom of a floor-mounted device PPT 0910 001 AA Move the device to the appropriate place and set it on its feet. You need 2 people to lift the device. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 268: Installing A Multiport Aggregate Device

    Before connecting cables or turning on power, ensure that the device is properly grounded. Failure to provide a proper ground may result in electrical shock causing equipment damage or personal injury. For information, see NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. NN10600-175 6.1S2...
  • Page 269 (page 271). If you are installing the first panel on the rack, connect the grounding wire (supplied separately by Nortel Networks) to the top right securing screw. See the figure “Grounding 19” termination panels” (page 241).
  • Page 270 (page 332) or “Installing ac power cables on a multiport aggregate device” (page 310). Attach the appropriate cables to the multiport aggregate device. See NN10600-172 Nortel Networks Multiservice Switch 7400 FP Cabling Reference. At the rear of the device, toggle on the power control beside each power supply outlet.
  • Page 271 Chapter 39 Hardware procedures 271 Procedure job aid Figure 89 Installing brackets on a multiport aggregate device PPT 2841 004 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 272: Installing A Multiservice Switch 7420 Into A Rack Or Cabinet

    272 Chapter 39 Hardware procedures Installing a Multiservice Switch 7420 into a rack or cabinet Install a Nortel Networks Multiservice Switch 7420 into a rack or cabinet, as an alternative to mounting the device on the floor or desktop. Prerequisites...
  • Page 273 Chapter 39 Hardware procedures 273 Procedure job aid Figure 90 Securing the rack-mounting brackets to the Multiservice Switch 7420 PPT 3221 006 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 274 274 Chapter 39 Hardware procedures Figure 91 Securing the rack-mounting brackets to the front vertical rails PPT 3221 005 AA NN10600-175 6.1S2...

  • Page 275: Installing A Multiservice Switch 7420 Into A Seismic Rack Or Cabinet

    Chapter 39 Hardware procedures 275 Installing a Multiservice Switch 7420 into a seismic rack or cabinet Install a Nortel Networks Multiservice Switch 7420 into a seismic rack or cabinet if you are located in an earthquake zone. Prerequisites CAUTION Risk of equipment damage...
  • Page 276 276 Chapter 39 Hardware procedures Procedure job aid Figure 92 Securing the rear seismic brackets to the Multiservice Switch 7420 PPT 3401 001 AA NN10600-175 6.1S2...
  • Page 277 Chapter 39 Hardware procedures 277 Figure 93 Securing the rack-mounting brackets to the front vertical rails PPT 3401 002 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 278 278 Chapter 39 Hardware procedures Figure 94 Securing the rack-mounting brackets to the front vertical rails PPT 3401 003 AA NN10600-175 6.1S2...

  • Page 279: Installing A Multiservice Switch 7440 Into A Rack Or Cabinet

    Prerequisites • If you plan to install the device in a Nortel Networks Multiservice Switch cabinet, check the position of the uprights. You must set the front uprights back 11.4 cm (4.5 in.) from the front of the cabinet. The spacing between front and rear uprights must be 36.8 cm (14.5 in.).
  • Page 280 280 Chapter 39 Hardware procedures Procedure job aid Figure 95 Securing the rack-mounting brackets to a rack PPT 2910 001 AA NN10600-175 6.1S2...
  • Page 281 Chapter 39 Hardware procedures 281 Figure 96 Securing the chassis to a rack PPT 3037 002 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 282: Installing A Multiservice Switch 7460 Shelf Assembly

    282 Chapter 39 Hardware procedures Installing a Multiservice Switch 7460 shelf assembly Install a Nortel Networks Multiservice Switch 7460 in a rack or cabinet before installing any other parts. Prerequisites WARNING Risk of injury An empty shelf assembly weighs 18.9 kg (41.67 lbs.). You need two people to perform this procedure.
  • Page 283 Fasten the shelf assembly to the rails or rack using the 8 screws that are taped to the unit. See the figure “A Multiservice Switch 7460 shelf assembly” (page 284). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 284 284 Chapter 39 Hardware procedures Procedure job aid Figure 97 A Multiservice Switch 7460 shelf assembly Shelf assembly Intake airflow grill Cooling unit Mounting ear hole Captive screw MSS 3494 001 AA2 NN10600-175 6.1S2...
  • Page 285 Chapter 39 Hardware procedures 285 Figure 98 A Multiservice Switch 7460 shelf assembly to be installed in a rack Guide pin Rack Mounting ear Thread-forming screws MSS 3479 013 AA2 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 286: Installing A Multiservice Switch 7480

    286 Chapter 39 Hardware procedures Installing a Multiservice Switch 7480 Install a Nortel Networks Multiservice Switch 7480 in a rack or cabinet before installing any processor cards or cables. Prerequisites WARNING Risk of injury The shelf assembly weighs 20.9 kg (46 lb). You need two people to perform this procedure.
  • Page 287 C.U. Power. Use a 1/8-in. screwdriver to tighten the 2 screws. See the figure “Cooling unit power cord” (page 501). The power cord is pre-connected to the cooling unit chassis. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 288 288 Chapter 39 Hardware procedures Procedure job aid Figure 99 Multiservice Switch 7480 cooling unit chassis PPT 0891 001 AA NN10600-175 6.1S2...
  • Page 289 Chapter 39 Hardware procedures 289 Figure 100 Multiservice Switch 7480 shelf assembly PPT 0892 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 290 290 Chapter 39 Hardware procedures Figure 101 Multiservice Switch 7480 cable management assembly PPT 1034 001 AA NN10600-175 6.1S2...

  • Page 291: Installing A Multiservice Switch Cabinet Door

    Chapter 39 Hardware procedures 291 Installing a Multiservice Switch cabinet door Install Nortel Networks Multiservice Switch cabinet door so that you can restrict access to devices by locking the door. Prerequisites • You need a cabinet door kit with PEC NTJS56.

  • Page 292: Installing A Power Supply Filler In A Multiservice Switch 7460

    292 Chapter 39 Hardware procedures Installing a power supply filler in a Multiservice Switch 7460 Install an Nortel Networks Multiservice Switch 7460 power supply filler to provide optimum cooling and EMI containment when only one power supply is used. Prerequisites •...

  • Page 293: Installing A Power Supply Into A Multiservice Switch 7440

    Chapter 39 Hardware procedures 293 Installing a power supply into a Multiservice Switch 7440 Install a power supply into a Nortel Networks Multiservice Switch 7440 to provide power, or install a second power supply to provide redundancy. Prerequisites WARNING Damage to equipment; safety hazard...
  • Page 294 294 Chapter 39 Hardware procedures If you are installing a dc power supply, connect the battery wire, the battery return wire, and the ground wire to the terminal block. See the figure “Multiservice Switch 7440 dc wiring” (page 468). If you are installing an ac power supply, insert the power cord connector into the appropriate power connector on the power input panel on the rear of the device.
  • Page 295 Chapter 39 Hardware procedures 295 Procedure job aid Figure 102 Inserting a power supply in a Multiservice Switch 7440 Locking latch, open position Latch PPT 3078 003 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 296: Installing A Power Supply In A Multiservice Switch 7460

    296 Chapter 39 Hardware procedures Installing a power supply in a Multiservice Switch 7460 Install a Nortel Networks Multiservice Switch 7460 power supply to provide minimum or redundant power to the shelf. Prerequisites WARNING Risk of personal injury Power supplies weigh 5.7 kg (12.57 lb.) each. Handle carefully and avoid dropping.
  • Page 297 Stop pushing when you feel the connectors engage and the captive screws at the faceplate of the power supply contact their threaded holes. Hand-tighten the 2 Phillips captive thumb screws to snug plus a 1/4 turn. Do not overtighten. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 298 298 Chapter 39 Hardware procedures Procedure job aid Figure 103 Power control for the power supply on a Multiservice Switch 7460 Power supply Power switch Standby PPT 3479 011 AA2 NN10600-175 6.1S2...
  • Page 299 Grill for airflow, Power input output side connector Captive screw Front view Handle Status LED Grill for airflow, Power switch in the input side OFF position PPT 3479 002 AA2 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 300 300 Chapter 39 Hardware procedures Figure 105 Exploded view of the power supplies and a Multiservice Switch 7460 Shelf assembly Captive screws Power supplies MSS 3479 010 AA NN10600-175 6.1S2...

  • Page 301: Installing A Power Supply Into A Multiservice Switch 7480

    Chapter 39 Hardware procedures 301 Installing a power supply into a Multiservice Switch 7480 Install a power supply into a Nortel Networks Multiservice Switch 7480 to provide minimum or redundant power for the shelf. Prerequisites WARNING Risk of personal injury Power supplies weigh 6.6 kg (14.5 lb) each.
  • Page 302 302 Chapter 39 Hardware procedures Use both hands to lift the power supply. Grasp the handle and lift with one hand. Support the bottom of the power supply with the other hand. See the figure “Installing a power supply into a Multiservice Switch 7480” (page 303).
  • Page 303 Chapter 39 Hardware procedures 303 Figure 106 Installing a power supply into a Multiservice Switch 7480 DCP70063 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 304: Installing A Rack-Mounted Alarm Panel / Power And Alarm Panel

    304 Chapter 39 Hardware procedures Installing a rack-mounted alarm panel / power and alarm panel Install a rack-mounted alarm panel so that you can monitor the status of a Multiservice Switch 7460 or a Multiservice Switch 7480 if it is not installed in a cabinet.
  • Page 305 Procedure job aid Figure 107 Alarm panel for rack-mounted alarm panel kits NTPS20AA and NTJS74AA Alarm cable Power LED Alarm cutoff connector Major alarm LED Minor alarm LED MSS 2497 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 306 306 Chapter 39 Hardware procedures Figure 108 Power and alarm panel for rack-mounted power and alarm panel kit NTPS20BA Alarm cutoff Power LED Power connector Major alarm LED Alarm cable connector Minor alarm LED -BAT -BAT -BAT MSS 3540 001 AA NN10600-175 6.1S2...

  • Page 307: Installing A Shelf Interconnect Cable

    Chapter 39 Hardware procedures 307 Installing a shelf interconnect cable Install a shelf interconnect cable so that you can monitor the alarm status of two Nortel Networks Multiservice Switch 7480s using a single external alarm. Prerequisites • Follow “Avoiding damage from static electricity” (page 208) to protect the unit from damage by ESD or from transferring ESD to other hardware.

  • Page 308: Installing A Vertical-Mount Multiservice Switch 7420 Or Multiservice Switch 7440

    308 Chapter 39 Hardware procedures Installing a vertical-mount Multiservice Switch 7420 or Multiservice Switch 7440 Install a vertical-mount device under or beside a desk or table. Prerequisites • You need a vertical mount kit with PEC NTHQ08. • Ensure that your floor plan takes into consideration all of the information in “Site preparation for free-standing Multiservice Switch equipment”...
  • Page 309 Position the chassis according to the site plan. Insert a blank processor card (NTBP23) into each slot that does not have a processor card. Ensure that there is sufficient clearance for data cables and power cable. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 310: Installing Ac Power Cables On A Multiport Aggregate Device

    310 Chapter 39 Hardware procedures Installing ac power cables on a multiport aggregate device Install ac power cables on a multiport aggregate device after you install the device in a rack or cabinet. Procedure steps Plug an ac power cable into each power supply plug at the rear of the device.

  • Page 311: Installing An Ac Power Cable

    Failure to complete a proper ground at the ac power outlet may result in electrical shock causing equipment damage or personal injury. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 312 Risiko der Beschädigung des Geräts durch Stromschlag. • Before you install a power cord, make sure you have met the appropriate power requirements. For information, see NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. Procedure steps Insert the power cord connector into the appropriate power connector on the power input panel on the rear of the device, as shown in either •...
  • Page 313 Chapter 39 Hardware procedures 313 The ac power cord grounds a Multiservice Switch 7440, so no additional grounding procedure is required. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 314 314 Chapter 39 Hardware procedures Procedure job aid Figure 110 Installing Multiservice Switch 7440 ac power cords PPT_0911_001_AB NN10600-175 6.1S2...
  • Page 315 Chapter 39 Hardware procedures 315 Figure 111 Installing Multiservice Switch 7480 ac power cords Cable guide Power cord Tie-wrap To AC outlet PPT 3078 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 316: Installing An Alarm Panel Cable Or Cabinet Door Alarm Cable

    Ensure that you have made an alarm cable to suit your installation and in accordance with the connector pinout information in NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. The alarm cable must be shielded to comply with electromagnetic interference (EMI) requirements. See “Making a braided shield”...

  • Page 317: Installing An External Alarm Cable

    2 connector on the rear of the device. See the figure “Dual alarm shelf interconnection between two Multiservice Switch 7480s” (page 318). Connect the other end of the cable to your remote alarm device. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 318 318 Chapter 39 Hardware procedures Procedure job aid Figure 112 Dual alarm shelf interconnection between two Multiservice Switch 7480s Alarm 2 PPT 1036 001 AA NN10600-175 6.1S2...
  • Page 319 Chapter 39 Hardware procedures 319 Figure 113 Multiservice Switch 7440 alarm connector and cutoff control alarm cutoff switch external alarm connector local operator port 0 local operator port 4 PPT_0917_002_AB Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 320 320 Chapter 39 Hardware procedures Figure 114 The external alarm connector of a Multiservice Switch 7460 Shelf assembly Alarm 1 for the external alarm cable Alarm 2 for the door alarm cable of a cabinet MSS 3479 015 AA NN10600-175 6.1S2...

  • Page 321: Installing An Fp

    FPs in a shelf with only one operating power supply unit. This risk does not apply when the FPs are already installed and one of two power supplies fails. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 322 FP. The hardware configuration must match the software configuration for the slot. • The bottom of a Nortel Networks Multiservice Switch 7400 FP is typically where the status LED is located. •...
  • Page 323 (LP) or FP is enabled • an interface cable is not connected • an interface cable is connected to the wrong port • the FP fails to be loaded by the CP Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 324 324 Chapter 39 Hardware procedures Procedure job aid Figure 115 Locking and unlocking processor card latches Unlocked Locked Locking latches Use a 6 mm (1/4-inch) flat-head screwdriver to lock and unlock latches. To unlock, make a 1/4 turn counter-clockwise. To lock, make a 1/4 turn clockwise. Note: Do not force a lock too far in either direction.
  • Page 325 Push in with your thumb while pushing up with your index finger. Grasp the bottom ejector latch with your thumb and index fingers. Push in with your index finger while pushing down with your thumb. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 326: Installing Covers For A Multiservice Switch 7440

    Card is not faulty, but cannot operate. (For example, the card is not provisioned in software, or the slot was provisioned for one card type but another type was inserted or, for Multiservice Switch 7400 series, the card is unsupported.)
  • Page 327 Chapter 39 Hardware procedures 327 Procedure job aid Figure 117 Installing a front cover on a Multiservice Switch 7440 PPT 1056 001 AC Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 328 328 Chapter 39 Hardware procedures Figure 118 Installing a rear cover on a Multiservice Switch 7440 NN10600-175 6.1S2...

  • Page 329: Installing Cp Cables For Bits

    Connect the other end of the cables to the DS1/E1 BITS ports on the faceplates of the main and spare CPs. See the figure “Control processor with BITS faceplate” (page 331) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 330 330 Chapter 39 Hardware procedures Procedure job aid Figure 119 Connections for CP-with-BITS BITS- 0 & 1 Balanced BITS termination panel Main BITS-0 Rx BITS-0 OUTPUT INPUT BITS-1 BITS-1 Rx Spare Dip switch 9 pin BITS- 0 & 1 D-type connectors 15 pin D-type connectors BITS- 0 &...
  • Page 331 V.24 DCE port Port 2 15-pin LED status indicators D-type connector for Ethernet port Pin Numbering 10Base-T Ethernet port Scheme RJ45 connector Port 3 LED status indicator Ejector latch PPT 3304 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 332: Installing Dc Power Cables Onto A Multiport Aggregate Device

    332 Chapter 39 Hardware procedures Installing dc power cables onto a multiport aggregate device Install dc power cables on a multiport aggregate device after you have mounted the device to the rack or cabinet. Procedure steps Connect the dc power cable for each power supply to the output terminals of the disconnect device.
  • Page 333 Chapter 39 Hardware procedures 333 Procedure job aid Figure 121 Connecting power wires to the terminal connector PPT 3059 002 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 334 334 Chapter 39 Hardware procedures Figure 122 Connecting the terminal connector PPT 3059 001 AA NN10600-175 6.1S2...

  • Page 335: Installing Dc Power Cables Onto A Multiservice Switch 7420

    Chapter 39 Hardware procedures 335 Installing dc power cables onto a Multiservice Switch 7420 Install dc power cables to provide power to a Nortel Networks Multiservice Switch 7420. Prerequisites WARNING Risk of injury by electric shock Before installing any cables, ensure that the circuit breaker at the power distribution panel is toggled off and that the outlet is void of primary power.
  • Page 336 336 Chapter 39 Hardware procedures Replace the plastic cover on the terminal block. Connect the cables from the disconnect device to the power source. Procedure job aid Figure 123 Multiservice Switch 7420 dc power cables (+) Battery return (-) Battery -48V/-60V Ground Strain relief clip PPT 3221 012 AA...

  • Page 337: Installing Dc Power Cables Onto A Multiservice Switch 7440

    Chapter 39 Hardware procedures 337 Installing dc power cables onto a Multiservice Switch 7440 Install dc power cables onto a Nortel Networks Multiservice Switch 7440 to provide input power to a power supply. Prerequisites WARNING Risk of injury by electric shock...
  • Page 338 338 Chapter 39 Hardware procedures Procedure job aid Figure 124 Multiservice Switch 7440 dc power cables Ground cable Battery -48/60 V Battery return dc cables PPT 3157 001 AA NN10600-175 6.1S2...

  • Page 339: Installing Dc Power Cables Onto A Multiservice Switch 7460

    Chapter 39 Hardware procedures 339 Installing dc power cables onto a Multiservice Switch 7460 Install dc power cables onto a Nortel Networks Multiservice Switch 7460 to provide input power to a power supply. Prerequisites WARNING Risk of injury by electric shock...
  • Page 340 340 Chapter 39 Hardware procedures If your device is in a Multiservice Switch or seismic cabinet, you can route the cable through the floor or ceiling with the other cables. To increase accessibility, unfasten the 10-mm (3/8-in.) hex screws and remove the smaller grill cutout in either the top or the bottom of the cabinet.
  • Page 341 Terminal block for the dc power cables of an Multiservice Switch 7460 Shelf assembly Mounting ear Grounding stud Insulation shield Stud for a 1-hole lug -BAT -BAT PPT 3479 003 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 342 342 Chapter 39 Hardware procedures Figure 126 Terminal block dc cable connections for an Multiservice Switch 7460 Shelf assembly Post to fasten insulation shield Grounding stud Green and yellow cable with 1-hole lug 1-hole lug -BAT -BAT Terminal block PPT 3479 014 AA NN10600-175 6.1S2...

  • Page 343: Installing Dc Power Cables Onto A Multiservice Switch 7480

    Chapter 39 Hardware procedures 343 Installing dc power cables onto a Multiservice Switch 7480 Install dc power cables onto a Nortel Networks Multiservice Switch 7480 to provide input power to a power supply. Prerequisites WARNING Risk of injury by electric shock...
  • Page 344 344 Chapter 39 Hardware procedures Secure the cables to the side of the cable guide using cable ties. Determine the length of the cables you require at the connections and cut them to the appropriate length. Attach cable lugs to the ends of the wires. Match the lug size to the cable size.
  • Page 345 Procedure job aid Figure 127 Multiservice Switch 7480 dc power cables -48 Rtn -48 Rtn -48 Rtn Shelf ground stud DC cable Cable tie To cabinet ground stud PPT 0897 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 346: Installing Ferrite Beads Onto Dc Power Cables

    346 Chapter 39 Hardware procedures Installing ferrite beads onto dc power cables Install ferrite beads onto the dc power input cables of a device to ensure that the cables comply with the Class B containment of electromagnetic interference (EMI) standard. Prerequisites WARNING Risk of injury or equipment damage by electricity...
  • Page 347 The terminal block that is shown in the figure “Location of ferrite beads on dc power cables” (page 348) is similar for all Multiservice Switch 7400 series devices. The method and criteria for attaching the beads is the same for all.
  • Page 348 348 Chapter 39 Hardware procedures Procedure job aid Figure 128 Location of ferrite beads on dc power cables Screw to fasten cable lug Terminal block strip -48 Rtn -48 Rtn -48 Rtn Post for an insulation shield screw Cluster of dc cables Shelf ground stud...

  • Page 349: Installing Fp Cables

    (TNV) circuits must be through an external device that provides current protection and isolation, such as an approved channel service unit (CSU). All such devices must meet the equipment safety standards of the country of installation. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 350 350 Chapter 39 Hardware procedures WARNUNG Verletzungsgefahr Verbinden Sie Multiservice Switch-Schnittstellen nur mit SELV-Schaltungen (Schutzkleinspannung). Verbindungen zu TNV-Schaltungen müssen über ein externes Gerät erfolgen, das Stromschutz und -isolierung bietet, z.B. eine geprüfte Kanaldiensteinheit (CSU, Channel Service Unit). Alle Geräte müssen den Sicherheitsstandards des jeweiligen Landes entsprechen.
  • Page 351 • For figures showing the cable connections between an FP and its termination panel, sparing panel, or the far end, see NN10600-172 Nortel Networks Multiservice Switch 7400 FP Cabling Reference. • The fanout cables and fanout cable adapter for the 32-port DS1 or E1 MSA 1-slot FPs has connectors of different sizes and the cables are split.
  • Page 352 • The interface cables with shielded connectors are automatically grounded when they are securely connected at the FP faceplate and a Nortel Networks termination panel or sparing panel. • Follow “Avoiding damage from static electricity” (page 208) to protect the unit from damage by ESD or from transferring ESD to other hardware.
  • Page 353 Route each FP cable from the FP in the front of the Multiservice Switch 7400 towards the next equipment connection according to “Card cable routing and labeling” (page 113). The next equipment connection can be another FP, a termination panel, a sparing panel, or non-Multiservice Switch equipment at the far end.
  • Page 354 (for example, NTPS03 and NTPS04 or your equivalent custom-made cables) or replace the cables with the MSA32 fanout cables for 1-slot FPs. Cable choices are identified in NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. Repeat step 1 to step 3 for each other port on the FP faceplate.
  • Page 355 D-sub with screws D-sub with sliding latch End view MT-RJ Ethernet RJ-45 Top view End view LC-simplex Top view End view SC-simplex Top view End view SC-simplex Top view PPT 3372 001 AA2 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 356: Installing Multiple Msa32 Sparing Panels (Db15 Or Bnc)

    356 Chapter 39 Hardware procedures Installing multiple MSA32 sparing panels (DB15 or BNC) Install multiple MSA32 sparing panels for a one-for-n sparing configuration. Prerequisites • The one-for-n (formerly 1:n) configurations of 32-port multi-service access (MSA32) sparing panels require one panel for each FP you want to spare.
  • Page 357 If necessary, change the fasteners on the sparing connections of the Main A (bottom) panel as described in the procedure “Changing fasteners on an MSA32 sparing panel” (page 213). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 358 358 Chapter 39 Hardware procedures Procedure job aid Figure 130 Inter-panel flexi-cable for MSA32 sparing panels with BNC or DB15 connectors Sliding latch Ribbon cable PPT 3330 001 AA NN10600-175 6.1S2...
  • Page 359 Location of MSA32 inter-panel flexi-cable connectors for BNC and DB15 Inter-panel D-sub flexi cable connectors IBP0 IBP1 IBP2 IBP3 OBP0 OBP1 OBP2 OBP3 IBP0 IBP1 IBP2 IBP3 OBP0 OBP1 OBP2 OBP3 Main A sparing panel PPT 2953 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 360: Installing Multiple Msa32 Sparing Panels (Rj-45)

    360 Chapter 39 Hardware procedures Installing multiple MSA32 sparing panels (RJ-45) Install multiple MSA32 sparing panels for a one-for-n sparing configuration. Prerequisites • The one-for-n (formerly 1:n) configurations of 32-port multi-service access (MSA32) sparing panels require one panel for each FP you want to spare.
  • Page 361 11/64-inch (4.4-mm). Stop when the screws are snug and the outside lip of the cable connector almost touches the flat surface. Avoid stripping a screw or the post hole. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 362 362 Chapter 39 Hardware procedures Holding the end of another flexi-cable that has one D-sub connector (not two), align and plug the D-sub into the third D-sub connector on the underside of the sparing panel. Allow the cable to hang freely. 10 Repeat step 9 for the remaining 3 flexi-cables.
  • Page 363 Figure 132 Inter-panel flexi-cable for MSA32 sparing panels with RJ-45 connectors For studs or hex Sliding latch fasteners to screw into the alignment posts Fits over alignment posts PPT 2947 002 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 364 364 Chapter 39 Hardware procedures Figure 133 Cable connections of MSA32 sparing panels with RJ-45 connectors Inter-panel flexi-cables See side view Spare detail below MSA FP Side view Rack To CPE Inter-panel flexi-cables To CPE To CPE To spare MSA FP PPT 2870 015 AB NN10600-175 6.1S2...
  • Page 365 Bottom flexi-cable connections of MSA32 sparing panels with RJ-45 connectors Bottom view Alignment posts for fastening the third D-sub cable connector of an inter-panel flexi-cable Studs for sliding latches Top view Mounting ear PPT 2947 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 366: Installing Seismic Brackets For A Multiservice Switch 7460

    366 Chapter 39 Hardware procedures Installing seismic brackets for a Multiservice Switch 7460 Install seismic brackets onto a seismic cabinet to ensure compliance to Zone 4 earthquake standards when mounting a Nortel Networks Multiservice Switch 7460 in the cabinet. Prerequisites •...
  • Page 367 10 Fasten the second cross rail in the same way through the lower side panel slots. Observe its mirrored orientation in the figure. The position and orientation of the cross rails are to cradle the rear edges of the shelf assembly when it is installed. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 368 368 Chapter 39 Hardware procedures Procedure job aid Figure 135 Orientation of seismic side panels and seismic cross rails for a Multiservice Switch 7460 Alignment pin Screw and washer To cradle For thread-forming the rear of screws a 7460 Seismic cross rail Seismic side panel PPT 3486 001 AA2 NN10600-175 6.1S2...
  • Page 369 Figure 136 Position of side panels and cross rails for a Multiservice Switch 7460 in a seismic cabinet Vertical rail Seismic side panel Seismic cross rails Seismic cabinet PPT 3479 012 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 370: Installing Seismic Hardware

    370 Chapter 39 Hardware procedures Installing seismic hardware Install seismic hardware inside a seismic cabinet after you anchor the cabinet to the floor. Procedure steps Install the vertical mounting angles as shown in “Seismic cabinet mounting—front view” (page 207). Use the panel shown in “Seismic cabinet mounting—rear view” (page 371) to connect the rear of the shelf to the additional seismic cabinet mounting rail kit.
  • Page 371 Chapter 39 Hardware procedures 371 Procedure job aid Figure 137 Seismic cabinet mounting—rear view rear support panel #10-32 panhead screw cable bracket (2) #10-32 panhead screws (8) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 372: Labeling A Card Cable Connection

    — an interworking device such as a DS1 EdgeLink 100 mux or a multiport aggregate device — the far-end termination such as another FP, a Nortel Networks product other than a Multiservice Switch, or a non-Nortel Networks product (also referred to as customer premises equipment or CPE) •...
  • Page 373 The installed labels must not interfere with the operation or handling of cables for maintenance tasks. The labels must be robust enough to withstand occasional handling. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 374 374 Chapter 39 Hardware procedures Procedure steps Determine the port-to-port connections from the near end of the CP or FP card up to its far end interface. Create the labels, each with its unique connection identification information. On a cable at the CP or FP end, attach a label where it can be seen with minimal handling of cables.

  • Page 375: Making A Bits Wire

    81 m (266 ft) to 122 m (399 ft) DSX-1 122 m (399 ft) to 163 m (533 ft) DSX-1 163 m (533 ft) to 200 m (655 ft) DSX-1 (Sheet 1 of 2) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 376 376 Chapter 39 Hardware procedures Table 4 (continued) Typical line build out application settings Gauge Distance Transmitter -7.5 db CSU -15 db CSU (Sheet 2 of 2) Procedure steps Lay the wires from the timing source up to the connectors on the BITS termination panel.
  • Page 377 1 is BITS-1 • P is positive, which for balanced means tip and for unbalanced means signal • N is negative, which for balanced means ring and for unbalanced means ground Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 378 378 Chapter 39 Hardware procedures Figure 138 D-sub pinout for BITS cables for DS1 or E1 balanced pin numbers Ground To site’s BITSRXN (or BITSRX ring) clock distribution BITSRXP (or BITSRX tip) panel PPT 2819 010 AD NN10600-175 6.1S2...

  • Page 379: Making A Braided Shield

    Place the insert and assembled connector into the cavity of the bottom cover. See the figure “Braided shield assembly” (page 381). With the insert and the connector in place, secure the top cover to the bottom cover. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 380 380 Chapter 39 Hardware procedures Procedure job aid Figure 139 Steps for making a braided shield Cable Step 1 Insert Cable Step 1 Braid Insert Braid Wires Wires 2 slits 2 slits Step 2 Step 2 Step 3 Step 3 Insert Insert PPT 3152 001 AA...
  • Page 381 Chapter 39 Hardware procedures 381 Figure 140 Braided shield assembly Top cover Cable Insert Connector Cable shield (folded back) Bottom cover PPT 3152 002 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 382: Making Customer Equipment Cables

    Ensure that you have assembled all required cable parts. Procedure steps Assemble the cable according to the specifications in NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description your company operational procedures. If you are making a shielded cable, make a braided shield. See the procedure “Making a braided shield”...

  • Page 383: Moving A Door Hinge To The Other Side Of A Cabinet

    Move the door latch and the blank door latch to opposite sides of the frame. See the figures “Cabinet door with hinges on the left” (page 384) and “Cabinet door with hinges on the right” (page 385). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 384 384 Chapter 39 Hardware procedures Procedure job aid Figure 141 Cabinet door with hinges on the left Hinge supporting plates Top and centre hinges Blank door latch Lower hinge Door latch Door alarm indicator cable PPT 1044 001 AA NN10600-175 6.1S2...
  • Page 385 Figure 142 Cabinet door with hinges on the right Hinge supporting plates Top and centre hinges Lower hinge Door latch Door alarm Blank door latch indicator cable PPT 1045 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 386: Packing A Processor Card

    386 Chapter 39 Hardware procedures Packing a processor card Pack a processor card after you remove it from a shelf in order to protect it from damage. Prerequisites CAUTION Risk of electrostatic damage When handling processor cards, wear a grounded antistatic wrist strap so that you do not damage electronic parts.
  • Page 387 95% and that the temperature does not exceed 70 degrees Celsius (158 degrees Fahrenheit). Store or ship the processor card in accordance with your company’s operational procedures. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 388: Placing And Anchoring A Multiservice Switch Cabinet

    388 Chapter 39 Hardware procedures Placing and anchoring a Multiservice Switch cabinet Place and anchor a Nortel Networks Multiservice Switch cabinet to ensure stability for devices. Procedure steps If you have not done so during site preparation, drill holes to accommodate the anchors.
  • Page 389 16 Replace the large grille in the base of the cabinet. 17 Replace the cooling unit. See “Installing a cooling unit into a Multiservice Switch 7480” (page 260) for more information. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 390 Plastic washer Upper bolt-down bracket Lower bolt-down bracket Bushing 360° Threaded rod Lock washer Plate washer Anchor These parts are required for the raised floor anchoring only. Note: To order the anchoring kit please contact your Nortel representative. PPT_DCP70131 NN10600-175 6.1S2...

  • Page 391: Powering Down A Multiservice Switch

    After a couple of minutes, verify the LEDs for the power supplies, cooling unit, and each processor card faceplate are off. Power off the power supplies. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 392: Powering Up A Multiservice Switch 7420

    392 Chapter 39 Hardware procedures Powering up a Multiservice Switch 7420 Power up a Nortel Networks Multiservice Switch 7420 after installing all processor cards. Prerequisites CAUTION Risk of equipment damage You can damage equipment if you power up a device before you have met the prerequisites listed in this section.
  • Page 393 Termination panel is powered Main FP connection LED Termination panel is powered and main FP is illuminated active Spare FP connection Termination panel is powered and spare FP is LED illuminated active Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 394: Powering Up A Multiservice Switch 7440

    394 Chapter 39 Hardware procedures Powering up a Multiservice Switch 7440 Power up a Nortel Networks Multiservice Switch 7440 after installing all hardware and cabling. Prerequisites CAUTION Risk of equipment damage You can damage equipment if you power up a device before you have met the prerequisites listed in “Prerequisites”...
  • Page 395 Verify that the power supply LED is green. Verify that the appropriate LEDs are illuminated on termination panels. See “Termination panel LED status display” (page 393) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 396 396 Chapter 39 Hardware procedures Procedure job aid Figure 145 Multiservice Switch 7440 power supply Standby Power switch PPT DCP50015 NN10600-175 6.1S2...

  • Page 397: Powering Up A Multiservice Switch 7460

    Chapter 39 Hardware procedures 397 Powering up a Multiservice Switch 7460 Power up a Nortel Networks Multiservice Switch 7460 after you have installed all plug-in and screw-on parts onto the shelf assembly. Prerequisites • Verify that all power supply controls are in the standby position. See the figure “The power control on the power supply for a Multiservice...
  • Page 398 398 Chapter 39 Hardware procedures Procedure job aid Figure 146 The power control on the power supply for a Multiservice Switch 7460 Power supply Power switch Standby PPT 3479 011 AA2 NN10600-175 6.1S2...

  • Page 399: Powering Up A Multiservice Switch 7480

    Chapter 39 Hardware procedures 399 Powering up a Multiservice Switch 7480 Power up a Nortel Networks Multiservice Switch 7480 after you have installed all shelf components. Prerequisites • Verify that all power supply controls are in the standby position. See the figure “Unlocked power supply on a Multiservice Switch 7480 with the...
  • Page 400 400 Chapter 39 Hardware procedures If you install eight or more FPs, you must use a second power supply. If your system contains fewer than eight FPs, the system uses the second power supply for redundancy. If necessary, engage the remaining processor cards. Verify the LED color on each FP is appropriate.

  • Page 401: Preparing The Floor For A Multiservice Switch Cabinet

    Chapter 39 Hardware procedures 401 Preparing the floor for a Multiservice Switch cabinet Prepare the floor for a Nortel Networks Multiservice Switch cabinet before installing the cabinet. Prerequisites • Ensure that your floor plan takes into consideration all of the information in “Site preparation”...
  • Page 402 402 Chapter 39 Hardware procedures Figure 147 Multiservice Switch cabinet footprint Anchoring circle Smaller grille Levelling foot 60 cm (23.6 in.) Cabinet footprint 2.75 cm (1.1 in.) 2.75 cm (1.1 in.) Front 60 cm (23.6 in.) A: Anchoring radius is 7.6 cm (3 in.) from the centre of the levelling feet Drill each hole and clean thoroughly with a vacuum cleaner.
  • Page 403 Make the cutouts. A cutout 6.4 cm (2.5 in.) by 42 cm (16.6 in.) can accommodate all cables from a cabinet that contains two fully configured devices. Smooth any sharp edges on the cutouts that can damage cables. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 404: Preparing The Floor For A Seismic Cabinet

    404 Chapter 39 Hardware procedures Preparing the floor for a seismic cabinet Prepare the floor for a seismic cabinet using one of the seismic anchoring kits. Or, if you do not require seismic protection, you can anchor the seismic cabinet to stabilize the cabinet and prevent it from tipping over. Prerequisites •...
  • Page 405 Note: To anchor a seismic cabinet for seismic protection, install either the outside-mount seismic brackets or the inside-mount seismic brackets. To anchor a seismic cabinet to prevent it from tipping over, install stabilization anchors. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 406: Removing A 13-Inch Termination Panel From A Multiservice Switch 7420

    406 Chapter 39 Hardware procedures Removing a 13-inch termination panel from a Multiservice Switch 7420 Remove a termination panel from a Nortel Networks Multiservice Switch 7420 to replace a failed panel or if you are removing its associated FP(s) from the shelf.
  • Page 407 Chapter 39 Hardware procedures 407 Procedure job aid Figure 150 Multiservice Switch 7420 termination panel removal PPT 3221 015 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 408: Switch 7440

    408 Chapter 39 Hardware procedures Removing a 13-inch termination panel from a Multiservice Switch 7440 Remove a termination panel from a Nortel Networks Multiservice Switch 7440 to replace a failed panel or if you are removing its associated FP(s) from the shelf.
  • Page 409 Note: Tip the top of the termination panel away from the cabinet only a minimum amount to clear the housing. Forcing the bottom of the termination panel against the cable manager can damage the cable manager. PPT_2118_001_AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 410: Removing A 19-Inch Rack-Mounted Termination Panel

    410 Chapter 39 Hardware procedures Removing a 19-inch rack-mounted termination panel Remove a termination panel to replace a failed panel or if you are removing its associated FPs from the shelf. Procedure steps You can, if necessary, remove the front door before you remove termination panels from a cabinet.

  • Page 411: Removing A Blank Processor Card

    Refer to the figure “Disengaging a processor card” (page 325). Set the blank processor card aside or pack for shipping or storage in accordance with your company operational procedures. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 412: Removing A Cabinet Door

    412 Chapter 39 Hardware procedures Removing a cabinet door Remove a cabinet door after you remove the door alarm indicator cable. Prerequisites • The door is heavy, so ensure that you have two people available to lift the door. Procedure steps Unlock and open the door.

  • Page 413: Removing A Cabinet Door Alarm Cable

    Disconnect the cable on the cabinet’s front door. See the figure “Door alarm connectors for a Multiservice Switch 7480” (page 414). The door portion of this figure also applies to a Multiservice Switch 7460 device. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 414 414 Chapter 39 Hardware procedures Procedure job aid Figure 152 Door alarm connectors for a Multiservice Switch 7480 Do not use door alarm connectors for telephones. Front door PPT 0884 001 AA NN10600-175 6.1S2...
  • Page 415 Door alarm connector for a Multiservice Switch 7460 Shelf assembly Mounting ear Alarm 1 for the external alarm cable Alarm 2 for the door alarm cable of a cabinet MSS 3479 007 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 416: Removing A Control Processor

    416 Chapter 39 Hardware procedures Removing a control processor Remove a control processor (CP) as preparation for installing a replacement. Prerequisites CAUTION Risk of damage by electrostatic discharge (ESD) When you handle processor cards, wear a grounded antistatic wrist strap or equivalent to protect electronic parts.
  • Page 417 Damage to equipment by electromagnetic interference To meet electromagnetic interference (EMI) regulatory requirements and thermal specifications, each empty slot must be filled with a blank processor card (NTBP23). See “Installing a blank processor card” (page 243). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 418 418 Chapter 39 Hardware procedures Procedure job aid Figure 154 Locking and unlocking processor card latches Unlocked Locked Locking latches Use a 6 mm (1/4-inch) flat-head screwdriver to lock and unlock latches. To unlock, make a 1/4 turn counter-clockwise. To lock, make a 1/4 turn clockwise. Note: Do not force a lock too far in either direction.
  • Page 419 Push in with your thumb while pushing up with your index finger. Grasp the bottom ejector latch with your thumb and index fingers. Push in with your index finger while pushing down with your thumb. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 420: Removing A Cp Ethernet Cable

    • If the CP is not spared, have the software operator disable the attribute SwitchoveronFailure as described in the section “Changing the switchover behavior of the OAM Ethernet port” in NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures. Procedure steps On the faceplate of the CP, locate the Ethernet cable to be removed.

  • Page 421: Removing A Multiport Aggregate Device

    If the processor card has failed, include the failure time and, if known, the cause of the failure. its original packaging and label the box. Pack the device in Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 422: Removing A Multiservice Switch 7420

    422 Chapter 39 Hardware procedures Removing a Multiservice Switch 7420 Remove a Nortel Networks Multiservice Switch 7420 to redeploy in another location or to decommission. Prerequisites CAUTION Risk of equipment damage You need two people to remove a Multiservice Switch 7420 from a rack or cabinet: one person must hold the chassis in place while a second person unfastens the screws.
  • Page 423 Chapter 39 Hardware procedures 423 Pack the shelf in its original packaging. Procedure job aid Figure 156 Rack-mounting brackets on Multiservice Switch 7420 PPT 3221 005 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 424 424 Chapter 39 Hardware procedures Figure 157 Removing vertical mount shelf hardware Cable guide Shelf assembly Shelf plate PPT 2030 001 AB NN10600-175 6.1S2...
  • Page 425 Chapter 39 Hardware procedures 425 Figure 158 Removing the feet on a desk-top mounted Multiservice Switch 7420 PPT 3221 013 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 426 426 Chapter 39 Hardware procedures Figure 159 Cable guide on desk-top mounted Multiservice Switch 7420 Cable guide PPT 3221 014 AA NN10600-175 6.1S2...

  • Page 427: Removing A Multiservice Switch 7440

    Chapter 39 Hardware procedures 427 Removing a Multiservice Switch 7440 Remove a Nortel Networks Multiservice Switch 7440 to replace a failed shelf, or when decommissioning a node. Prerequisites CAUTION Risk of equipment damage You need two people to remove a Multiservice...
  • Page 428 428 Chapter 39 Hardware procedures Procedure job aid Figure 160 Removing the device from a rack PPT 3037 002 AA NN10600-175 6.1S2...
  • Page 429 Chapter 39 Hardware procedures 429 Figure 161 Removing the feet from the bottom of a floor-mounted device PPT 0910 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 430: Removing A Multiservice Switch 7480

    430 Chapter 39 Hardware procedures Removing a Multiservice Switch 7480 Remove a Nortel Networks Multiservice Switch 7480 after you have removed the power supplies, processor cards and cooling unit drawer. Prerequisites WARNING Risk of injury The shelf assembly weighs 20.9 kg (46 lb). You need two people to perform this procedure.
  • Page 431 Use a 5/16-in. socket wrench to remove the four screws that secure the cooling unit chassis to the frame. Remove the cooling unit chassis. See the figure “Multiservice Switch 7480 cooling unit chassis” (page 288). Pack all shelf components in their original packaging. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 432: Removing A Multiservice Switch Cabinet From A Pallet

    432 Chapter 39 Hardware procedures Removing a Multiservice Switch cabinet from a pallet After you unpack the Nortel Networks Multiservice Switch cabinet, remove it from its pallet. If the cabinet is the seismic version, see the procedure “Unpacking and removing a seismic cabinet from a pallet” (page 545).
  • Page 433 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 434 434 Chapter 39 Hardware procedures WARNUNG Verletzungsgefahr Zur Vermeidung von Verletzungen beim Arbeiten in unmittelbarer Nähe des Gehäuses und insbesondere beim Bewegen des Gehäuses stellen Sie sicher, dass Ihre Hände und Füße nicht unter das Gehäuse gelangen, und dass sich die Stützfüße nicht an der Verankerung verhaken und ein Umkippen des Gehäuses verursachen.
  • Page 435 Tilt the cabinet and move it down the front end of the pallet. With the cabinet tilted, remove the pallet from under the cabinet. Rest the cabinet on all four leveling feet. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 436 436 Chapter 39 Hardware procedures 10 Reattach the anchoring brackets to the pallet. 11 Store the pallet for later use in case the cabinet must be moved. NN10600-175 6.1S2...

  • Page 437: Removing A Rack-Mounted Alarm Panel / Power And Alarm Panel

    Procedure job aid Figure 164 Alarm panel for rack-mounted alarm panel kits NTJS74AA and NTPS20AA Alarm cable Power LED Alarm cutoff connector Major alarm LED Minor alarm LED MSS 2497 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 438 438 Chapter 39 Hardware procedures Figure 165 Power and alarm panel for rack-mounted alarm panel kit NTPS20BA Alarm cutoff Power connector Power LED Major alarm LED Alarm cable connector Minor alarm LED MSS 3540 001 AA NN10600-175 6.1S2...

  • Page 439: Removing A Shelf Interconnect Cable

    Procedure steps Disconnect the shelf interconnect cable from the Alarm 2 connector on the back of each shelf. See the figure “Dual alarm shelf interconnection between two Multiservice Switch 7480s” (page 440). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 440 440 Chapter 39 Hardware procedures Procedure job aid Figure 166 Dual alarm shelf interconnection between two Multiservice Switch 7480s Alarm 2 PPT 1036 001 AA NN10600-175 6.1S2...

  • Page 441: Removing An Fp

    Ensure that you are removing the appropriate FP. The LED of the FP you are removing must not be solid green. For more information, see the table “Processor card LED status display” (page 326). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 442 FP card out of the slot. Refer to the figure “Disengaging a processor card” (page 325). Pack the FP according to “Packing a processor card” (page 386). This applies whether a failed FP is being returned to Nortel Networks or the card is being re-deployed. WARNING...
  • Page 443 D-sub with screws D-sub with sliding latch End view MT-RJ Ethernet RJ-45 Top view End view LC-simplex Top view End view SC-simplex Top view End view SC-simplex Top view PPT 3372 001 AA2 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 444: Removing Cp Cables For Bits

    Before removing a BITS cable from an active CP lock the external timing ports. See “Locking external timing ports” in NN10600-550 Nortel Networks Multiservice Switch 7400/15000/20000 Common Configuration Procedures •...

  • Page 445: Removing Fp Cables

    Risk of damage by electrostatic discharge (ESD) When you contact processor cards, wear a grounded antistatic wrist strap or equivalent to protect electronic parts. For more information, see “Avoiding damage from static electricity” (page 208). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 446 446 Chapter 39 Hardware procedures CAUTION Risk of equipment damage To prevent equipment damage, disconnect the cables attached to the ports of an FP before you disconnect the control cable that connects the FP to a termination panel. CAUTION Risk of equipment damage When engaging or disengaging cable connectors, ensure that a cable connector with a guide ridge is aligned with the transceiver’s keyway.

  • Page 447: Removing Power Cables

    If you are removing a dc cable, disconnect the cables from the disconnect device. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 448 448 Chapter 39 Hardware procedures If you are removing an ac cable, unplug the cable from the power outlet. If you are removing a cable from a Multiservice Switch 7420 or Multiservice Switch 7460, unscrew the plastic insulation shield from the terminal block.
  • Page 449 Chapter 39 Hardware procedures 449 Procedure job aid Figure 168 DC power cables connected to a Multiservice Switch 7420 (+) Battery return (-) Battery -48V/-60V Ground Strain relief clip PPT 3221 012 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 450 450 Chapter 39 Hardware procedures Figure 169 DC power cables connected to a Multiservice Switch 7440 Ground cable Battery -48/60 V Battery return dc cables PPT 3157 001 AA NN10600-175 6.1S2...
  • Page 451 DC power cables connected to a Multiservice Switch 7460 Shelf assembly Post to fasten insulation shield Grounding stud Green and yellow cable with 1-hole lug 1-hole lug -BAT -BAT Terminal block PPT 3479 014 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 452 452 Chapter 39 Hardware procedures Figure 171 DC power cables connected to a Multiservice Switch -48 Rtn -48 Rtn -48 Rtn Shelf ground stud DC cable Cable tie To cabinet ground stud PPT 0897 001 AA NN10600-175 6.1S2...

  • Page 453: Removing The Cable Management Bracket From A Multiservice Switch 7460

    With your other hand, use a Phillips screwdriver to unscrew the 2 captive thumb screws on the cable management bracket. See the figure “Exploded view of a cable management bracket on a Multiservice Switch 7460” (page 454). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 454 454 Chapter 39 Hardware procedures Procedure job aid Figure 172 Exploded view of a cable management bracket on a Multiservice Switch 7460 Shelf assembly Captive screw Cable management bracket PPT 3479 008 AA2 NN10600-175 6.1S2...

  • Page 455: Removing The Cooling Unit From A Multiservice Switch 7440

    Chapter 39 Hardware procedures 455 Removing the cooling unit from a Multiservice Switch 7440 Remove the cooling unit from a Nortel Networks Multiservice Switch 7440 if the unit fails. Prerequisites CAUTION Risk of equipment damage Remove and restart cooling units in under 10 minutes.You can damage CPs and FPs and they can fail...
  • Page 456 456 Chapter 39 Hardware procedures Procedure job aid Figure 173 Unlocking a Multiservice Switch 7440 cooling unit NN10600-175 6.1S2...
  • Page 457 Chapter 39 Hardware procedures 457 Figure 174 Removing a Multiservice Switch 7440 cooling unit DCP50019 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 458: Removing The Cooling Unit From A Multiservice Switch 7460

    458 Chapter 39 Hardware procedures Removing the cooling unit from a Multiservice Switch 7460 Remove the cooling unit from a Multiservice Switch 7460 in preparation to restore the full cooling capabilities. Prerequisites CAUTION Risk of equipment damage Remove and restart cooling units in under 10 minutes. You can damage CPs and FPs and they can fail if the fans are off longer than 10 minutes.
  • Page 459 Pull the cooling unit out of its slot, making sure to support the underside of the unit with your left hand. Hold the unit so that you do not contact any of the copper-colored EMI gaskets that are located behind the faceplate. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 460 460 Chapter 39 Hardware procedures Procedure job aid Figure 175 Exploded view of a cooling unit and Multiservice Switch 7460 Shelf assembly Captive screw Intake airflow grill Cooling unit PPT 3479 009 AA2 NN10600-175 6.1S2...

  • Page 461: Removing The Cooling Unit From A Multiservice Switch 7480

    Chapter 39 Hardware procedures 461 Removing the cooling unit from a Multiservice Switch 7480 Remove the cooling unit from a Nortel Networks Multiservice Switch 7480 to replace a failed unit. Some types of air filter assemblies also require you to remove the cooling unit drawer when replacing the air filter.
  • Page 462 462 Chapter 39 Hardware procedures Tilt the unit up and pull it out completely; use your other hand to support the unit’s weight. Set the cooling unit aside. You can carry the unit by its faceplate handle. Procedure job aid Figure 176 Cooling unit lock on a Multiservice Switch 7480 Locked...
  • Page 463 Chapter 39 Hardware procedures 463 Figure 177 Removing a cooling unit from a Multiservice Switch 7480 DCP70120B Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 464: Removing The Front Cover From A Multiservice Switch 7440

    464 Chapter 39 Hardware procedures Removing the front cover from a Multiservice Switch 7440 Remove the front cover from a Nortel Networks Multiservice Switch 7440 if you need to access interior components, for example the processor cards, air filter, or power supplies.
  • Page 465 Chapter 39 Hardware procedures 465 Procedure job aid Figure 178 Removing a Multiservice Switch 7440 front cover PPT 1056 001 AB Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 466: Removing The Power Supply From A Multiservice Switch 7440

    466 Chapter 39 Hardware procedures Removing the power supply from a Multiservice Switch 7440 Remove a failed power supply from a Nortel Networks Multiservice Switch 7440 before installing a new one. Prerequisites WARNING Damage to equipment by electromagnetic interference To meet electromagnetic interference (EMI) regulatory...
  • Page 467 Chapter 39 Hardware procedures 467 Procedure job aid Figure 179 Multiservice Switch 7440 power supply Standby Power switch PPT DCP50015 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 468 468 Chapter 39 Hardware procedures Figure 180 Multiservice Switch 7440 dc wiring Nut securing ground wire Secure cables here Ground wire #8 screw size, 10 AWG 90° ringlugs Battery – 48V/60V Battery return DCP50012A 10 AWG wiring NN10600-175 6.1S2...
  • Page 469 Chapter 39 Hardware procedures 469 Figure 181 Unlocking and removing a power supply from a Multiservice Switch 7440 DCP50025 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 470 470 Chapter 39 Hardware procedures Figure 182 Removing the ac power supply from a Multiservice Switch 7440 PPT_2115_001_AA NN10600-175 6.1S2...

  • Page 471: Removing The Power Supply From A Multiservice Switch 7460

    Chapter 39 Hardware procedures 471 Removing the power supply from a Multiservice Switch 7460 Remove the power supply from a Nortel Networks Multiservice Switch 7460 if it fails. Prerequisites CAUTION Risk of service loss Do not overload the power supplies. One power supply can support a maximum of one or two CPs and six or seven FPs up to a total of eight processor cards.
  • Page 472 472 Chapter 39 Hardware procedures Procedure steps Toggle to the standby position the power control on the power supply faceplate, as shown in figure “Exploded view of power supplies in a Multiservice Switch 7460” (page 473). Unfasten the 2 Phillips captive thumb screws. These are the screws with the large knobs.
  • Page 473 Chapter 39 Hardware procedures 473 Procedure job aid Figure 183 Exploded view of power supplies in a Multiservice Switch 7460 Shelf assembly Captive screws Power supplies MSS 3479 010 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 474: Removing The Power Supply From A Multiservice Switch 7480

    474 Chapter 39 Hardware procedures Removing the power supply from a Multiservice Switch 7480 Remove the power supply from a Nortel Networks Multiservice Switch 7480 if the unit fails. Prerequisites CAUTION Risk of service loss Do not overload the power supplies. One power supply can support a maximum of one or two CPs and six or seven FPs up to a total of eight processor cards.
  • Page 475 Slide the power supply carefully about half-way out of its slot. Use one hand to hold the handle, and use the other hand to support the unit’s weight. Carefully slide the unit completely out of the slot. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 476 476 Chapter 39 Hardware procedures Procedure job aid Figure 184 Unlocked power supply on a Multiservice Switch 7480 with the power control in the standby position gasket Locking screw Power switch Unlocked Locked Standby On NN10600-175 6.1S2...
  • Page 477 Chapter 39 Hardware procedures 477 Table 8 Multiservice Switch 7480 minimum power supply requirements Number of processor cards Minimum number of power supplies required to installed maintain service Eight or fewer More than eight Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 478: Removing The Rear Cover From A Multiservice Switch 7440

    478 Chapter 39 Hardware procedures Removing the rear cover from a Multiservice Switch 7440 Remove the rear cover from a Nortel Networks Multiservice Switch 7440 if you need access to interior components, for example rear-mounted termination panels, or the external alarm connector.
  • Page 479 Chapter 39 Hardware procedures 479 Procedure job aid Figure 185 Removing a rear cover from a Multiservice Switch 7440 PPT 1057 001 AB Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 480: Removing The Shelf Assembly Of A Multiservice Switch 7460

    480 Chapter 39 Hardware procedures Removing the shelf assembly of a Multiservice Switch 7460 Remove a n Nortel Networks Multiservice Switch 7460 if it has a bent or broken backplane pin, or if there is a failed card slot. Prerequisites...
  • Page 481 5/16-in. screws from the 2 mounting ears of the assembly. Refer to the figure “Shelf assembly of a Multiservice Switch 7460 removed from a rack” (page 483). Pack all shelf components in their original packaging. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 482 482 Chapter 39 Hardware procedures Procedure job aid Figure 186 Exploded view of parts from a Multiservice Switch 7460 shelf assembly Shelf assembly Cable management bracket Other slots for FPs Captive screws Slot 0 for a CP Intake airflow grill Mounting ear hole Cooling unit...
  • Page 483 Chapter 39 Hardware procedures 483 Figure 187 Shelf assembly of a Multiservice Switch 7460 removed from a rack Guide pin Rack Mounting ear Thread-forming screws MSS 3479 013 AA2 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 484: Replacing The Air Filter In A Multiservice Switch 7440

    484 Chapter 39 Hardware procedures Replacing the air filter in a Multiservice Switch 7440 Replace the air filter in a Nortel Networks Multiservice Switch 7440 as part of regular maintenance to ensure proper air flow and to validate processor card warranties.
  • Page 485 Record the filter replacement on the hardcopy of table “Schedule for replacing air filters and vacuuming equipment” (page 488). Keep this record to validate the warranties of processor cards that are returned to Nortel Networks. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 486 486 Chapter 39 Hardware procedures Procedure job aid Figure 188 Removing the air filter from a Multiservice Switch 7440 PPT 2117 001 AA NN10600-175 6.1S2...
  • Page 487 Chapter 39 Hardware procedures 487 Figure 189 Installing an air filter in a Multiservice Switch 7440 PPT_2116_001_AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 488 Customer name Equipment Equipment ID Equipment location Frequency model Note: The order number of an air filter pad for a Nortel Networks Multiservice Switch 7440 is A0626924. Table 10 Schedule for replacing air filters and vacuuming equipment Year: Eqpt. ID:_____________ Eqpt.

  • Page 489: Replacing The Air Filter In A Multiservice Switch 7460

    Chapter 39 Hardware procedures 489 Replacing the air filter in a Multiservice Switch 7460 Replace the air filter pad in a Nortel Networks Multiservice Switch 7460 as part of regular maintenance to ensure proper air flow and to validate processor card warranties.
  • Page 490 “Installing a cooling unit into a Multiservice Switch 7460” (page 257). Record the filter replacement on the hardcopy of table “Schedule for replacing air filters and vacuuming equipment” (page 492). Keep this record to validate the warranties of processor cards that are returned to Nortel Networks. NN10600-175 6.1S2...
  • Page 491 An air filter from the cooling unit for a Multiservice Switch 7460 Air filter P0609614 Faceplate Power input connector Status LED Cooling unit Front airflow grill Fan number 4 Captive screw PPT 3479 001 AA3 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 492 Customer name Equipment Equipment ID Equipment location Frequency model Note: The order number of an air filter pad for a Nortel Networks Multiservice Switch 7460 is P0609614. Table 12 Schedule for replacing air filters and vacuuming equipment Year: Eqpt. ID:_____________ Eqpt.

  • Page 493: Replacing The Air Filter In A Multiservice Switch 7480

    Chapter 39 Hardware procedures 493 Replacing the air filter in a Multiservice Switch 7480 Replace the air filter in a Nortel Networks Multiservice Switch 7440 as part of regular maintenance to ensure proper air flow and to validate processor card warranties.
  • Page 494 494 Chapter 39 Hardware procedures • the table “Schedule for replacing air filters and vacuuming equipment” (page 499) • the figure “Removing the air filter assembly from a Multiservice Switch 7480” (page 496) • the figure “Installing an air filter in a Multiservice Switch 7480” (page 498) •...
  • Page 495 11 Record the filter replacement on the hardcopy of table “Schedule for replacing air filters and vacuuming equipment” (page 499). Keep this record to validate the warranties of processor cards that are returned to Nortel Networks. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 496 496 Chapter 39 Hardware procedures Procedure job aid Figure 191 Removing the air filter assembly from a Multiservice Switch 7480 Air filter assembly NN10600-175 6.1S2...
  • Page 497 Chapter 39 Hardware procedures 497 Figure 192 Changing the air filter pad in a Multiservice Switch 7480 Air filter assembly (top side) Air filter assembly (bottom side) Air filter pad Air filter gate Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 498 498 Chapter 39 Hardware procedures Figure 193 Installing an air filter in a Multiservice Switch 7480 Air filter assembly NN10600-175 6.1S2...
  • Page 499 Customer name Equipment Equipment ID Equipment location Frequency model Note: The order number of an air filter pad for a Nortel Networks Multiservice Switch 7480 is A0383866. Table 14 Schedule for replacing air filters and vacuuming equipment Year: Eqpt. ID:_____________ Eqpt.

  • Page 500: Replacing The Cooling Unit Power Cord On A Multiservice Switch 7480

    500 Chapter 39 Hardware procedures Replacing the cooling unit power cord on a Multiservice Switch 7480 Replace the power cord on the cooling unit for a Nortel Networks Multiservice Switch 7480 if it fails. Prerequisites CAUTION Risk of equipment damage Replace a cooling unit power cord and restart cooling units within 10 minutes.
  • Page 501 Chapter 39 Hardware procedures 501 Procedure job aid Figure 194 Cooling unit power cord Cooling unit power cord Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 502: Replacing The External Alarm Cable

    Ensure that you have made the alarm cable to suit your installation and in accordance with the connector pinout information in NN10600-170 Nortel Networks Multiservice Switch 7400 Hardware Description. • If you are using long cables, ensure that your alarm system is not impeded by cable resistance.
  • Page 503 Procedure job aid Figure 195 Location of the alarm connector and cutoff control on a Multiservice Switch alarm cutoff switch external alarm connector local operator port 0 local operator port 4 PPT_0917_002_AB Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 504 504 Chapter 39 Hardware procedures Figure 196 External alarm connector on a Multiservice Switch 7460 Shelf assembly Mounting ear Alarm 1 for the external alarm cable Alarm 2 for the door alarm cable of a cabinet MSS 3479 007 AA NN10600-175 6.1S2...
  • Page 505 Chapter 39 Hardware procedures 505 Figure 197 Dual alarm shelf interconnection between two Multiservice Switch 7480s Alarm 2 PPT 1036 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 506: Resetting The Alarm Hardware

    506 Chapter 39 Hardware procedures Resetting the alarm hardware Reset the alarm hardware after you correct the fault that generated a major alarm. Procedure steps For a major alarm press the alarm cutoff button. See the figures “Door alarm connectors for a Multiservice Switch 7480” (page 414), “Alarm panel for rack-mounted alarm panel kits NTJS74AA and NTPS20AA”...
  • Page 507 Chapter 39 Hardware procedures 507 Procedure job aid Figure 198 Multiservice Switch 7440 alarm connector and cutoff control alarm cutoff switch external alarm connector local operator port 0 local operator port 4 PPT_0917_002_AB Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 508: Routing Cables Out Of A Cabinet

    508 Chapter 39 Hardware procedures Routing cables out of a cabinet Route cables through the top or bottom of a Multiservice Switch cabinet, depending on your installation. Procedure steps Remove the 10-mm (3/8-in.) screws from smaller grill cutout in the top or bottom of the cabinet.
  • Page 509 Chapter 39 Hardware procedures 509 Procedure job aid Figure 199 Cable routing through the top or bottom of a cabinet Cables PPT 1049 001 AA PPT 2051 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 510: Routing Card Cables On A Multiservice Switch 7420

    510 Chapter 39 Hardware procedures Routing card cables on a Multiservice Switch 7420 Route processor card cables through the built-in cable management assembly to termination panels installed on the back of the Multiservice Switch 7420. Procedure steps Route the cables from the faceplate of each processor card through the cable guides at the side of the device.
  • Page 511 Chapter 39 Hardware procedures 511 Procedure job aid Figure 200 Multiservice Switch 7420 cable routing PPT 3221 004 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 512: Routing Card Cables On A Multiservice Switch 7440

    512 Chapter 39 Hardware procedures Routing card cables on a Multiservice Switch 7440 Route processor card cables through the built-in cable management assembly to termination panels installed on the back of a Nortel Networks Multiservice Switch 7440. Procedure steps Route the cables from the faceplate of each processor card through the cable guides at the top of the device.
  • Page 513 Chapter 39 Hardware procedures 513 Procedure job aid Figure 201 Routing cables through a Multiservice Switch 7440 PPT 1054 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 514: Routing Card Cables On A Multiservice Switch 7460

    514 Chapter 39 Hardware procedures Routing card cables on a Multiservice Switch 7460 Route processor card cables through the Nortel Networks Multiservice Switch 7460 cable management bracket, to keep them organized. Procedure steps Route the cables from the faceplate of each processor card through the cable management bracket as shown in the figure “Cable path from...
  • Page 515 Chapter 39 Hardware procedures 515 Procedure job aid Figure 202 Cable path from processor cards in a Multiservice Switch 7460 Shelf assembly Unconnected ports Cable management bracket FP cable CP cable PPT 3496 001 AB2 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 516: Routing Card Cables On A Multiservice Switch 7480

    516 Chapter 39 Hardware procedures Routing card cables on a Multiservice Switch 7480 Route processor card cables through the cable management assembly on top of the Nortel Networks Multiservice Switch 7480 to keep them organized. Procedure steps Open the cable management assembly door.
  • Page 517 Chapter 39 Hardware procedures 517 Procedure job aid Figure 203 Routing cables through a cable management assembly for a Multiservice Switch 7480 DCP70051 Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 518: Setting Dip Switches On A Hssi Function Processor

    518 Chapter 39 Hardware procedures Setting DIP switches on a HSSI function processor Set DIP switches on a HSSI function processor to DCE or DTE before you install the FP in a shelf. Procedure steps To set the HSSI function processor from DCE to DTE operation, set all poles of the DIP switch to the convert position.
  • Page 519 (CONVERT position) for DTE operation Note: The DIP switch is a seven pole switch. Ensure the switch is completely set in DTE or DCE position before inserting card. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 520: Setting Dip Switches On A V.11 Function Processor

    DIP switch. However, the device raises an alarm if the settings do not match. The default setting for the LineTerminationRequired attribute is yes. For more information, see NN10600-060 Nortel Networks Multiservice Switch 7400/15000/20000 Component Reference. NN10600-175 6.1S2...
  • Page 521 Termination DIP switches for ports 4 to 7 DIP switches are shown in the ON (down) position. ON (down) = terminated line OFF (up) = unterminated line PPT 0989 001 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 522: Setting Modem Dip Switches

    522 Chapter 39 Hardware procedures Setting modem DIP switches Set modem DIP switches using the instructions provided by the manufacturer of the modem before you configure the modem software. Prerequisites • Ensure that the modem you want to use supports all of the required settings.
  • Page 523 Toggle to the on position the power control on the power supply. The LED on the power supply of a Nortel Networks Multiservice Switch 7460 device lights green to indicate power is on. Unlit means the power source is still off.

  • Page 524: Unpacking A Horizontally-Packaged Cabinet

    524 Chapter 39 Hardware procedures Unpacking a horizontally-packaged cabinet Unpack a cabinet in a dust-free area near the installation site. Nortel Networks Multiservice Switch cabinets are generally shipped horizontally. Prerequisites WARNING Risk of personal injury A cabinet that contains one Multiservice Switch device weighs 200.
  • Page 525 (CPs), function processors (FPs), the power supplies, the termination panels, and any other boxes. Each item is identified on the container by its Nortel Networks product engineering code (PEC) NTxxxxaa or part number Pnnnnnn.) Unpack them later when appropriate antistatic equipment protection will be specified for the installation procedure.
  • Page 526 526 Chapter 39 Hardware procedures 12 Compare the contents of your shipment with the table “Equipment checklist for unpacking a cabinet” (page 543) and the figure “Taking inventory after unpacking a cabinet” (page 544) to ensure that you have all the hardware components you require. NN10600-175 6.1S2...

  • Page 527: Unpacking A Multiservice Switch 7420

    Chapter 39 Hardware procedures 527 Unpacking a Multiservice Switch 7420 Unpack the Nortel Networks Multiservice Switch 7420 as close as possible to the installation site. Prerequisites CAUTION Risk of electrostatic damage To avoid electrostatic damage, do not unpack the termination panels at this time. When handling...
  • Page 528 528 Chapter 39 Hardware procedures Table 16 Equipment checklist for the Multiservice Switch 7420 base package Equipment Multiservice Switch 7420 with integrated dc power supply and cooling fan control processor (CP) DCE V.24 operator cable antistatic wrist strap NN10600-175 6.1S2...
  • Page 529 Chapter 39 Hardware procedures 529 Procedure job aid Figure 206 Taking inventory after unpacking a Multiservice Switch 7420 3-slot Passport switch Control processor V.24 operator Anti-static cable wrist strap PPT 3221 003 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 530: Unpacking A Multiservice Switch 7440

    530 Chapter 39 Hardware procedures Unpacking a Multiservice Switch 7440 Unpack the Nortel Networks Multiservice Switch 7440 as close as possible to the installation site. Procedure steps Set the box on floor with top end down. Cut tape sealing the bottom flaps.
  • Page 531 Grounding strips for termination panels (1 for each panel) Optional: front and rear cover kit Optional: rubber feet and fasteners (4 of each) Optional: rack mounting brackets Antistatic wrist strap (Sheet 2 of 2) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 532 532 Chapter 39 Hardware procedures Figure 207 Taking inventory after unpacking a Multiservice Switch 7440 Floor mounted node Rack mounted node Feet for floor mounted node Power Power converter supply Control 13” Integrated processor Front and rear termination panel cover panels (optional) Card cables Power cord and/...

  • Page 533: Unpacking A Multiservice Switch 7460

    Chapter 39 Hardware procedures 533 Unpacking a Multiservice Switch 7460 Unpack the Nortel Networks Multiservice Switch 7460 as close as possible to the installation site. Prerequisites CAUTION Avoid structural stress when maneuvering uncrated shelf assemblies When handling and moving uncrated shelf assemblies, avoid strain, excessive shock or vibrations that can damage or warp the equipment.
  • Page 534 534 Chapter 39 Hardware procedures Procedure job aid Table 18 Equipment checklist for unpacking a Multiservice Switch 7460 ÷ Equipment NTBP23, blank processor cards (1 for each empty card slot) NTEP80, shelf assembly (empty) NTEP8023, cooling unit with air filter NTEP8025, seismic brackets kit (optional) NTPS19, DC power supplies, 1 or 2 NTPS20, remote alarm panel (optional)
  • Page 535 1 or 2 Control FPs up to 7, minus cards (NTBP23) processors (CPs) the CPs and blanks for empty slots Anti-static Grounding Card cables writst strap cables Cable management bracket PPT 3498 003 AA Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...

  • Page 536: Unpacking A Multiservice Switch 7480

    536 Chapter 39 Hardware procedures Unpacking a Multiservice Switch 7480 Unpack a Nortel Networks Multiservice Switch 7480 as close as possible to the installation site. Prerequisites CAUTION Avoid structural stress when maneuvering uncrated shelf assemblies When handling and moving uncrated shelf assemblies, avoid strain, excessive shock or vibrations that can damage or warp the equipment.
  • Page 537 Termination panels (as required) Grounding cable for termination panels Grounding strips for termination panels (1 for each panel) Power cords (1 for each power supply) Power cord selector guide Antistatic wrist strap Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 538 538 Chapter 39 Hardware procedures Figure 209 Taking inventory after unpacking a Multiservice Switch 7480 Cable management assembly Termination panel Node shelf assembly Anti-static Grounding wrist strap strip Grounding Function cable processor Cooling unit assembly (includes chassis, cooling unit, and air filter) Power cord and/ or a power cord selector guide...

  • Page 539: Unpacking A Processor Card

    Chapter 39 Hardware procedures 539 Unpacking a processor card Unpack a processor card in preparation for installation. Nortel Networks packs processor cards separately, in boxes that contain antistatic material. Prerequisites CAUTION Risk of electrostatic damage When handling processor cards, wear a grounded antistatic wrist strap so that you do not damage electronic parts.
  • Page 540 540 Chapter 39 Hardware procedures Procedure job aid Figure 210 Antistatic protection for unpacking a processor card Antistatic material Antistatic wrist strap PPT 0923 001 AA NN10600-175 6.1S2...

  • Page 541: Unpacking A Vertically-Packaged Cabinet

    WARNING Risk of personal injury The sharp ends of the staples that hold the packaging together and anchor the cabinet to the pallet can be exposed as you unpack the cabinet. Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 542 (CPs), function processors (FPs), the power supplies, the termination panels, and any other boxes. Each item is identified on the container by its Nortel Networks product engineering code (PEC) NTxxxxaa or part number Pnnnnnn.) Unpack them later when appropriate antistatic equipment protection will be specified for the installation procedure.
  • Page 543 Grounding cable for termination panels Grounding strips for termination panels (1 for each panel) Power cords (1 for each power supply) Power cord selector guide Antistatic wrist strap Optional: anchoring kit Optional: eyebolts (4) Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 544 544 Chapter 39 Hardware procedures Figure 211 Taking inventory after unpacking a cabinet Shelf assembly with cooling unit, Cabinet with pre-installed shelf air filter, function processors, and assembly and termination panels cable management assembly Termination panel Anchoring kit Eyebolt Power Control (optional) (optional)

  • Page 545: Unpacking And Removing A Seismic Cabinet From A Pallet

    Use a pair of tin snips to cut the banding that secures the cabinet packaging. Lower the ramp that is attached to the pallet as shown in “Lowering the pallet ramp” (page 546). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 546 546 Chapter 39 Hardware procedures Figure 212 Lowering the pallet ramp rear front ramp Lower the front leveling feet to almost touch the pallet surface. This prevents the casters from touching the floor first and gives you more control. Slide the cabinet down the ramp as shown in “Sliding the cabinet down the ramp”...
  • Page 547 Tilt the cabinet onto the front leveling feet and slide the pallet from underneath the cabinet. See the figure “Removing the pallet” (page 548). Multiservice Switch 7400 Hardware Installation, Maintenance, and Upgrade 6.1S2...
  • Page 548 548 Chapter 39 Hardware procedures Figure 214 Removing the pallet rear front two people must support the cabinet one person must slides, left and remove the pallet after right you tilt the cabinet As you pull the pallet back, the wooden slides that support the left and right sides of the cabinet help you gently lower it down the ramp.
  • Page 550 Upgrade Release 6.1 Copyright © 2004 Nortel Networks. All Rights Reserved. NORTEL, NORTEL NETWORKS, the globemark design, the NORTEL NETWORKS corporate logo, DPN and PASSPORT are trademarks of Nortel Networks. Publication: NN10600-175 Document status: Standard Document version: 6.1S2 Document date: November 2004...

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