Page 1 P0904244 SONET Products AccessNode Modular Business Package VTBM Ring User Guide Issue 1.0 June 1999...
Page 3 All information contained in this document is subject to change without notice. Northern Telecom reserves the right to make changes to equipment design or program components, as progress in engineering, manufacturing methods, or other circumstances may warrant. ACCESSNODE, NORTEL, and NORTEL NETWORKS are trademarks of Northern Telecom. AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 5 Publication history June 1999 Release-independent Standard Issue 1.0 of the document. February 1999 Release-independent Standard release of the document, Issue 1.0. For this release, the following information was updated or added: • Added new Cooling Unit NT4K18CA • Added new Breaker Interface Panel (BIP) NT4K14BA Note: With the February 1999 release, references to the software release number (such as AN15 or AN16) have been deleted, making this document release-independent.
Page 6 iv Publication history AccessNode P0904244 Issue 1.0...
Page 7: Table Of Contents
Contents About this document Before using this document ix Additional documentation x How to use this document x FCC Part 15.21 radio interference information to the user x Abbreviations for the colors of conductor insulation in cables xi Safety guidelines and warnings Warnings and safety notices 1-1 Optical fiber cables 1-2 Handing optical fibers 1-3...
Page 8 vi Contents Copper-distribution shelves 2-16 CDS line drawer slot positions 2-16 Circuit breaker designations 2-17 ABM breaker interface panel (NT4K14BA) circuit breakers 2-17 Battery equipment module circuit breakers 2-18 DC distribution unit circuit breakers 2-18 System expansion 2-19 ABM circuit pack locations 2-20 Cabling diagrams 2-21 Environmental requirements 2-27 Temperature 2-27...
Page 9 Contents vii Replacing modules in a common-equipment shelf Chapter contents 7-1 Procedure 7-1 Replacing an NT4K30 DS3 I/O card 7-3 Procedure 7-2 Replacing an NT4K31 DS1 protection bridge card 7-4 Procedure 7-3 Replacing an NT4K32 DS1 input card 7-7 Procedure 7-4 Replacing an NT4K33 DS1 output card 7-9 Procedure 7-5 Replacing an NT4K50 side interconnect left 7-11...
Page 10 viii Contents MBP VTBM cabinets 11-2 MBP equipment 11-2 Miscellaneous MBP parts 11-3 MBP cables 11-4 Equipment circuit packs and modules 11-9 ABM shelf circuit packs 11-9 Copper-distribution shelf circuit packs 11-12 Breaker interface panel 11-13 Cooling unit 11-13 Related documentation 11-14 Technical support information 12-1...
Page 11: About This Document
About this document This document contains instructions for performing the following user and maintenance activities: • alarm recognition • replacing modules and circuit packs • general maintenance • shelf/equipment circuit breaker locations and designations • wiring diagrams (power) Before using this document Users of this document should be familiar with communications equipment and the operation of the tools required to complete the installation tasks.
Page 12: Additional Documentation
x About this document Additional documentation If you intend to perform a service-affecting procedure, obtain and have on-site the following documents that you may need to restore the system to service: • Alarm and Trouble Clearing Procedures, 323-3001-543, in Maintenance, Volume 5A •...
Page 13: Abbreviations For The Colors Of Conductor Insulation In Cables
About this document xi Abbreviations for the colors of conductor insulation in cables In this document, a uniform system of abbreviations is used to represent the colors of the conductor insulation used in equipment cables. These abbreviations take the form: <pair_color>...
Page 14 xii About this document AccessNode P0904244 Issue 1.0...
Page 15: Safety Guidelines And Warnings
Safety guidelines and warnings This chapter contains warnings and precautions for personal safety, and for the correct handling and operation of equipment while it is being installed. Warnings and safety notices This document contains notices that are designed to alert you about the risk of personal injury, or of damage to equipment.
Page 16: Optical Fiber Cables
(none at all), while Class IV products represent the greatest hazard. Although Nortel Networks optical products have a Class I certification, hazardous exposure to laser radiation could occur when fibers that interconnect system components are disconnected, broken, or are installed while equipment is under power.
Page 17: Handing Optical Fibers
Safety guidelines and warnings 1-3 Handing optical fibers During the installation, service, repair, or removal of optical fiber cables or equipment, follow these rules: • Avoid direct exposure to fiber ends or optical connections ends, where the laser signal is present. •...
Page 18 1-4 Safety guidelines and warnings Power off This symbol indicates that a main power on/off switch is on the off position. Protective grounding terminal This symbol indicates the location of a terminal that must be connected to earth ground before you make any other connections to the equipment.
Page 19 Safety guidelines and warnings 1-5 Direct current and alternating current This symbol indicates the location of a terminal that supplies direct current or alternating current, or to which a source of direct current or alternating current is applied. Dangerous voltage This symbol indicates the presence of a dangerous voltage inside an equipment enclosure.
Page 20 1-6 Safety guidelines and warnings AccessNode P0904244 Issue 1.0...
Page 21: Introduction To Equipment And Cabling Configurations
Introduction to equipment and cabling configurations This chapter describes the following: • configuration of the equipment in the modular business package (MBP) OC-12 virtual tributary bandwidth manager (VTBM) ring master and expansion cabinets • configuration of the internal and external signal cables •...
Page 22: Product Description
2-2 Introduction to equipment and cabling configurations Product description The AccessNode system consists of a central office equipment hub site and a remote equipment site and can be configured for several different applications such as: • OC-12 fiber ring • OC-12 single-ended (SE) •...
Page 23: Digital Fiber Access
Introduction to equipment and cabling configurations 2-3 The remote site ABM shelf, operating on the latest AccessNode software release, contains the OC-12 VTBM ring connections. VTBM services include: • • • OC-3 tributaries • DS0 based services — 2W (POTS, CENTREX, ISDN) —...
Page 24 2-4 Introduction to equipment and cabling configurations Figure 2-1 Typical MBP OC-12 VTBM fiber ring configuration PC-15557 OPC C-Net Hub Site 1–98 DS1 1–192 DS0 Typical end user remote Figure 2-2 Basic fiber-fed AccessNode system PC-10122 FW-10122 Central office OC-12 or OC-3 link FCOT AccessNode P0904244 Issue 1.0...
Page 25: Single-Ended
Introduction to equipment and cabling configurations 2-5 Single-ended The OC-12 fiber ring configuration incorporates the transport bandwidth manager (TBM) bay hub with operations controller (OPC) shelves and the VTBM MBP remote cabinet sites with an access bandwidth manager (ABM) shelf operating in a fiber ring application controlled by the latest AccessNode software release.
Page 26: Ds1-Fed
2-6 Introduction to equipment and cabling configurations DS1-fed The DS1-fed configuration incorporates DS1 feeders to the RFT. Fiber optic feeders are not used in this application. Figure 2-4 illustrates a typical DS1-fed configuration. Figure 2-4 DS1-fed AccessNode system PC-11488 DS1 feeders Subscriber lines FW-11488 OPC-RFT connection...
Page 27: Types Of Cabinet
Introduction to equipment and cabling configurations 2-7 Types of cabinet An AccessNode remote system is available in cabinets for the equipment rooms of business buildings at a remote site. An equipment room is a common space used for telecommunications equipment such as private branch exchanges, mainframe computers, or video switches that are shared by the occupants of a building.
Page 28 2-8 Introduction to equipment and cabling configurations Figure 2-5 Typical MBP OC-12 VTBM two-cabinet system arrangement PC-15370 FW-15370 s s N s s N s s N s s N s s N s s N s s N MBP master cabinet MBP expansion cabinet AccessNode P0904244 Issue 1.0...
Page 29: Common Features Of Mbp Cabinets
Nortel Networks. This special anchoring hardware is not supplied because of numerous variations in the construction of raised floors.
Page 30: Mbp Master Cabinet Configuration
2-10 Introduction to equipment and cabling configurations MBP master cabinet configuration As a minimum, a system consists of an MBP master cabinet. An expansion cabinet can be added to the system for additional service capability. The equipment layout for the MBP master cabinet is shown in Figure 2-6. The following paragraphs describe in more detail the configurations in which the equipment can be ordered from the factory.
Page 31 Introduction to equipment and cabling configurations 2-11 Figure 2-6 192-line configuration in an MBP VTBM master cabinet PC-15360 FW-15360 Copper- distribution s s N shelves s s N Access bandwidth manager shelf Breaker interface panel Local craft access panel Rectifiers Battery equipment module (BEM) Batteries...
Page 32: Mbp Expansion Cabinet Configuration
2-12 Introduction to equipment and cabling configurations MBP expansion cabinet configuration As a minimum, an MBP expansion cabinet consists of one copper-distribution shelf (CDS) and a battery equipment module (BEM). Up to 5 CDSs can be installed in the expansion cabinet to provide up to 480 lines of DS0 services. The equipment layout for the MBP expansion cabinet is shown in Figure 2-7.
Page 33 Introduction to equipment and cabling configurations 2-13 Figure 2-7 480-line configuration in an MBP VTBM expansion cabinet PC-15359 FW-15359 Plenum Copper- distribution shelves Batteries Battery equipment module (BEM) MBP expansion cabinet AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 34: Powering
2-14 Introduction to equipment and cabling configurations Powering The MBP master cabinet requires one 40A, 208/240 V ac feed from a commercial power source per rectifier shelf. AccessNode equipment in MBP cabinets requires four supply and return feeds each of which is rated at a nominal –48 V dc at 30 A to supply the ABM breaker interface panel.
Page 35: Abm Shelf
Introduction to equipment and cabling configurations 2-15 ABM shelf The ABM shelf circuit pack slot positions are numbered as shown in Figure 2-9. Figure 2-9 ABM shelf slot numbering Input/Out (I/O) card section 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Common equipment card section...
Page 36: Copper-Distribution Shelves
2-16 Introduction to equipment and cabling configurations Copper-distribution shelves In MBP cabinets, copper-distribution shelf (CDS) 1 is the lowest CDS in the master cabinet (above the ABM shelf). Shelf number 2 is the CDS immediately above shelf 1. Shelf numbering continues to the lowest CDS in the expansion cabinet up to shelf 7 –...
Page 37: Circuit Breaker Designations
Introduction to equipment and cabling configurations 2-17 Circuit breaker designations This section describes the circuit breaker locations and designations. ABM breaker interface panel (NT4K14BA) circuit breakers Table 2-2 shows the ABM BIP (NT4K14BA) breaker designations. Table 2-2 BIP NT4K14BA breaker designations Breaker Amperage Function...
Page 38: Battery Equipment Module Circuit Breakers
2-18 Introduction to equipment and cabling configurations Battery equipment module circuit breakers BEM circuit breaker 1 is located at the bottom of the MBP master cabinet on the front of the battery equipment module. BEM circuit breaker 2 is in the bottom of the expansion cabinet on the front of the battery equipment module.
Page 39: System Expansion
Introduction to equipment and cabling configurations 2-19 System expansion You can expand a system in a number of ways: • by adding an MBP expansion cabinet that contains the desired configuration of shelves • by adding a copper-distribution shelf into an empty shelf space in an existing MBP cabinet •...
Page 40: Abm Circuit Pack Locations
2-20 Introduction to equipment and cabling configurations ABM circuit pack locations Figure 2-12 shows typical locations of the common-equipment circuit packs and the I/O card circuit packs installed in the ABM shelf at each RFT using the latest software release for VTBM functionality. Circuit pack locations are variable.
Page 41: Cabling Diagrams
Introduction to equipment and cabling configurations 2-21 Cabling diagrams This section contains diagrams that show the connection of cables in the MBP master and expansion cabinets. The illustrations are listed in Table 2-3. Table 2-3 Cables by function Cable diagrams VTBM MBP cabinet cabling block diagram Figure 2-13 on page 2-21 Door alarm cabling in the master cabinet...
Page 42 2-22 Introduction to equipment and cabling configurations Figure 2-14 Door alarm cabling in the master cabinet PC-15600 fw-15600 Rear of cabinet To PDU (J6) MBP Master cabinet AccessNode P0904244 Issue 1.0...
Page 43 Introduction to equipment and cabling configurations 2-23 Figure 2-15 Door alarm cabling in the expansion cabinet PC-15594 FW-15594 Rear of cabinet To PDU (J6) MBP Expansion cabinet AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 44 2-24 Introduction to equipment and cabling configurations Figure 2-16 Power and battery cabling to the BIP NT4K36AA DC Dist unit NT4K84XE CB 1 NT4K84XE CB 2 NT4K84XF CB 3 NT4K84XF CB 4 Ret 4 Batt 4 Ret 3 Batt 3 Ret 2 Batt 2 Ret 1...
Page 45 Introduction to equipment and cabling configurations 2-25 Figure 2-17 BIP power distribution diagram CDS TB CDS Pwr BIP (left side) BIP (right side CU Pwr A CE Pwr A CU Pwr B CE Pwr B CE 1 BIP Ctl p/o NT4K84HE p/o NT4K84HE CDS 2 p/o NT4K84HE...
Page 46 2-26 Introduction to equipment and cabling configurations Figure 2-18 MBP equipment grounding scheme CDS 2 CDS 1 CDS 7 CDS 6 LCAP CDS 5 CDS 4 cards CDS 3 Backplane Expansion Master Pedestal Pedestal (Note) Master cabinet Expansion cabinet Note: In applications using a ground collector, this connection is not made. It routes from the master cabinet FG to the building ground collector.
Page 47: Environmental Requirements
Introduction to equipment and cabling configurations 2-27 Environmental requirements This section outlines the characteristics of the environment that must be present at the installation site if AccessNode equipment is to operate within design specifications. Note: For complete AccessNode specifications, see System Specifications, 323-3001-180, in the Description, Volume 2B.
Page 48: Technical Specifications
2-28 Introduction to equipment and cabling configurations Technical specifications This section contains technical specifications for the MBP cabinets. Weight MBP master cabinet: 192-lines (as shipped) 689.8 lb (312.9 kg) Batteries 100.0 lb (45.7 kg) Fully equipped (without batteries) 792.5 lb (359.5 kg) Fully equipped (with batteries) 1192.5 lb...
Page 49: Removing Covers And Grilles
Removing covers and grilles This chapter describes common procedures used to access equipment in modular business package (MBP) master or expansion cabinets. Chapter contents This chapter contains the following information: Topic Removing the cabinet covers page 3-2 Removing the side panels page 3-4 Removing the pedestal grilles page 3-6...
Page 50: Procedure
3-2 Removing covers and grilles Procedure 3-1 Removing the cabinet covers Use this procedure to remove the covers from the front and rear of the AccessNode equipment modules and the battery equipment modules on the modular business package (MBP) master or expansion cabinets. Note: The keys for the lockable cabinet covers are shipped inside the cabinet and are tie-wrapped to the side of the cabinet equipment frames.
Page 51 Removing covers and grilles 3-3 Procedure 3-1 (continued) Removing the cabinet covers Step Action Figure 3-1 Removing an equipment cover PC-10851 FW-10851 Turn Turn 1. Unlock Key type NSQ2000L tool (or ATT216 tool) 4. Lift 2. Push 3. Tilt 2. Push Turn Safety locking type —end—...
Page 52: Procedure
3-4 Removing covers and grilles Procedure 3-2 Removing the side panels Use this procedure to remove a side panels from modular business package (MBP) master or expansion cabinets. Requirements The following tools and materials are required: • sheets of cardboard or foam on which to rest the access bandwidth manager (ABM) shelf cover while the installation is being performed •...
Page 53 Removing covers and grilles 3-5 Procedure 3-2 (continued) Removing the side panels Step Action Figure 3-2 Removing a side panel PC-10858 FW-10858 2. Pull out side panel to remove it. 1. Remove side panel mounting screws. (4 places, 2 at front and 2 at rear of cabinet) —end—...
Page 54: Procedure
3-6 Removing covers and grilles Procedure 3-3 Removing the pedestal grilles Use this procedure to remove the pedestal grilles from modular business package (MBP) master or expansion cabinets. Requirements The following tools and materials are required: • flat blade screwdriver, 1/4 in. blade width •...
Page 55 Removing covers and grilles 3-7 Procedure 3-3 (continued) Removing the pedestal grilles Step Action Figure 3-3 Removing a pedestal grille PC-10852 FW-10852 2. Grasp 3. Tilt and lift 2. Grasp 1. Loosen captive screws —end— AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 56: Procedure
3-8 Removing covers and grilles Procedure 3-4 Removing the top cap grilles Use this procedure to remove the top cap grilles from modular business package (MBP) master or expansion cabinets. Requirements Before beginning this procedure, you must remove the equipment cover immediately below the top cap grille, as described in Procedure 3-1.
Page 57 Removing covers and grilles 3-9 Procedure 3-4 (continued) Removing the top cap grilles Step Action Figure 3-4 Removing the top cap grilles PC-15554 2. Tilt and lift to FW-15554 remove the grille. 1. Push up on two plastic tabs under casting. —end—...
Page 58: Procedure
3-10 Removing covers and grilles Procedure 3-5 Removing separator bars Use this procedure to remove the separator bars from the front or rear of modular business package (MBP) master or expansion cabinets. Requirements The following tools and materials are required: •...
Page 59 Removing covers and grilles 3-11 Procedure 3-5 (continued) Removing separator bars Figure 3-5 Removing a separator bar PC-15586 FW-15586 s s N s s N Lift and pull out Lift and pull out MBP master cabinet Note: This illustration shows the removal of the separator from the front of the MBP master cabinet.
Page 60: Procedure
3-12 Removing covers and grilles Procedure 3-6 Removing the ABM shelf cover Use this procedure to remove the cover from the access bandwidth manager (ABM) shelf in the modular business package (MBP) master cabinet. Other procedures in this document will call upon this procedure. Note: For proper electromagnetic interference (EMI) and thermal management protection, the shelf cover must be replaced after you have finished working inside the ABM shelf.
Page 61 Removing covers and grilles 3-13 Procedure 3-6 (continued) Removing the ABM shelf cover Step Action Figure 3-6 Unlocking and removing the ABM shelf cover PC-10534 FW-15534 Cable ties Note 1: I/O card bar code label mounting plate has been omitted for clarity. Note 2: Four cables are shown.
Page 62: Procedure
3-14 Removing covers and grilles Procedure 3-7 Removing the breaker interface panel cover Use this procedure to remove the cover from the NT4K14 BIP in the modular business package (MBP) master cabinet. Other procedures in this document call upon this procedure. Action Step Action...
Page 63 Removing covers and grilles 3-15 Procedure 3-7 (continued) Removing the breaker interface panel cover Step Action Figure 3-7 Breaker interface panel cover PC-16505 PC-16505 BIP cover —end— AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 64 3-16 Removing covers and grilles AccessNode P0904244 Issue 1.0...
Page 65: Interpreting An Led Or Lamp
Interpreting an LED or lamp This chapter explains the meaning of the status light-emitting diodes (LEDs) found on the AccessNode modular business package (MBP) top cap, circuit packs, cards and modules, and the lamps and LEDs on the breaker interface panel.
Page 66: Status Of In-Service Equipment Leds
4-2 Interpreting an LED or lamp Status of in-service equipment LEDs Table 4-1 shows how to interpret the status of the green Active LED and the red Fail LED for each in-service module, circuit pack, or card in the AccessNode shelves. Table 4-1 Interpreting status LEDs for in-service modules, circuit packs, and cards Module, circuit pack, or...
Page 67: Status Of Out-Of-Service Equipment Leds
Interpreting an LED or lamp 4-3 Status of out-of-service equipment LEDs Table 4-2 shows how to interpret the green Active LED and the red Fail LED for an out-of-service module, circuit pack, or card in the AccessNode. Table 4-2 Interpreting status LEDs for out-of-service modules, circuit packs, and cards Module, circuit Active LED Fail LED...
Page 68: Status Of Failed Equipment Leds
4-4 Interpreting an LED or lamp Status of failed equipment LEDs Table 4-3 shows how to interpret the green Active LED and the red Fail LED for a failed module, circuit pack, or card in the AccessNode shelves. Table 4-3 Interpreting status LEDs for failed modules, circuit packs, and cards Module, circuit pack, or Active LED...
Page 69: Replacing Modules In A Copper-Distribution Shelf
Replacing modules in a copper-distribution shelf This chapter provides procedures for replacing circuit packs, cards, and modules in an AccessNode copper-distribution shelf (CDS). Observe and follow all safety precautions listed in Chapter 1, “Safety guidelines and warnings,” when handling circuit packs. Chapter contents This chapter contains the following information: Topic...
Page 70 5-2 Replacing modules in a copper-distribution shelf Figure 5-1 Withdrawing a line drawer PC-10717 FW-10717 Copper-distribution shelf line drawer AccessNode P0904244 Issue 1.0...
Page 71: Procedure
Replacing modules in a copper-distribution shelf 5-3 Procedure 5-1 Replacing the NT4K62 copper-distribution shelf power card Use this procedure to replace the copper-distribution shelf power (CDSP) card, also known as the power converter. Action Step Action From the network element status screen, display the CDSP screen for the CDSP being replaced: eq cdsp;dtlcdsp <CDS#>...
Page 72 5-4 Replacing modules in a copper-distribution shelf Procedure 5-1 (continued) Replacing the NT4K62 copper-distribution shelf power card Step Action Figure 5-2 Removing a CDS power card PC-10716 FW-10716 Copper-distribution shelf power converter —end— AccessNode P0904244 Issue 1.0...
Page 73: Procedure
Replacing modules in a copper-distribution shelf 5-5 Procedure 5-2 Replacing the line cards Use this procedure to replace the following line cards in a copper-distribution shelf line drawer: • NT4K65 Epsilon 2-wire station line card (E2WS) • NT4K67 Omega 2-wire station line card (O2WS) •...
Page 74 5-6 Replacing modules in a copper-distribution shelf Procedure 5-2 (continued) Replacing the line cards Step Action Remove the line card from its slot by grasping the tab on the line card faceplate with your thumb and forefinger, and pulling outward. Note: Figure 5-3 shows a 2-wire Omega or Epsilon line card.
Page 75 Replacing modules in a copper-distribution shelf 5-7 Procedure 5-2 (continued) Replacing the line cards Step Action Figure 5-3 Removing a 2-wire Omega or Epsilon line card PC-10771 FW-10771 Typical 2-wire line card —continued— AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 76 5-8 Replacing modules in a copper-distribution shelf Procedure 5-2 (continued) Replacing the line cards Step Action Figure 5-4 Removing a 4-Wire Omega line card PC-10719 FW-10719 Typical 4-wire line card —continued— AccessNode P0904244 Issue 1.0...
Page 77 Replacing modules in a copper-distribution shelf 5-9 Procedure 5-2 (continued) Replacing the line cards Step Action Figure 5-5 Removing a 6/8-Wire Omega line card PC-10772 FW-10772 Typical 6/8-wire line card —end— AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 78: Procedure
5-10 Replacing modules in a copper-distribution shelf Procedure 5-3 Replacing the NT4K70 narrowband line interface card Use this procedure to replace the narrowband line interface (LIC) card in the copper-distribution shelf line drawer. Action Step Action If replacing Then go to a primary in-service LIC step 1 a secondary in-service LIC...
Page 79 Replacing modules in a copper-distribution shelf 5-11 Procedure 5-3 (continued) Replacing the NT4K70 narrowband line interface card Step Action Unlock the copper-distribution shelf (CDS) line drawer handle by turning the locking screw (located on the CDS adjacent to the ejector latch) 90 degrees counterclockwise so that the alignment indicators (a small “dot”...
Page 80 5-12 Replacing modules in a copper-distribution shelf Procedure 5-3 (continued) Replacing the NT4K70 narrowband line interface card Figure 5-6 Withdrawing a LIC PC-10718 FW-10718 Narrowband line interface - (NLIC) —end— AccessNode P0904244 Issue 1.0...
Page 81: Procedure
Replacing modules in a copper-distribution shelf 5-13 Procedure 5-4 Replacing the NT4K73AA or NT4K73CA metallic test access card Use this procedure to replace the metallic test access card (MTAC) in the copper-distribution shelf (CDS) line drawer. Action Step Action If replacing Then go to an in-service MTAC step 1...
Page 82 5-14 Replacing modules in a copper-distribution shelf Procedure 5-4 (continued) Replacing the NT4K73AA or NT4K73CA metallic test access card Step Action Change the state of the MTAC to in-service (IS): chgstate is↵ The state changes to IS. Note: If the automatic-in-service feature is set to on, the state changes to IS automatically.
Page 83: Replacing Modules In A Bip
Replacing modules in a BIP Use this procedure to replace modules in the breaker interface panel (BIP). Chapter contents This chapter contains the following information: Topic Replacing the NT4K64BA Alarm relay card page 6-2 Replacing the NT4K61BA Talk battery filter card page 6-4 Replacing the NT4K1472 BIP LED card page 6-6...
Page 84: Procedure
6-2 Replacing modules in a BIP Procedure 6-1 Replacing the NT4K64BA Alarm relay card Use this procedure to replace the NT4K64BA alarm relay card in the NT4K14BA breaker interface panel (BIP). Action Step Action Remove the BIP cover as shown in Chapter 3, “Removing covers and grilles.” Loosen the hold-down screw on the faceplate of the alarm relay card.
Page 85 Replacing modules in a BIP 6-3 Procedure 6-1 (continued) Replacing the NT4K64BA Alarm relay card Step Action Replace the BIP cover. Note: If the power to the BIP is applied and the load is powered on the left and right side of the BIP, you may hear the relay chattering. This is normal and will stop as soon as the load is applied to either side.
Page 86: Procedure
6-4 Replacing modules in a BIP Procedure 6-2 Replacing the NT4K61BA Talk battery filter card Use this procedure to replace the NT4K61BA talk battery filter card in the NT4K14BA breaker interface panel (BIP). Action Step Action Remove the BIP cover as shown in Chapter 3, “Removing covers and grilles.” Loosen the hold-down screw on the faceplate of the talk battery filter card.
Page 87 Replacing modules in a BIP 6-5 Procedure 6-2 (continued) Replacing the NT4K61BA Talk battery filter card Step Action Insert a replacement talk battery filter card in the BIP and fasten the card into place with hold-down screw. Replace the BIP cover. Figure 6-2 BIP talk battery filter card location PC-16499...
Page 88: Procedure
6-6 Replacing modules in a BIP Procedure 6-3 Replacing the NT4K1472 BIP LED card Use this procedure to replace the NT4K1472 LED card in the NT4K14AB breaker interface panel (BIP). The LED card is used to provide visual indication of BIP power, and system-level critical, major and minor alarms. Note: The NT4K1446 LED card provided in the NT4K14BA BIP is not field replaceable.
Page 89 Replacing modules in a BIP 6-7 Procedure 6-3 (continued) Replacing the NT4K1472 BIP LED card Step Action Figure 6-3 BIP LED card location PC-15745 FW-15745 it ic jo r M in LED card —continued— AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 90 6-8 Replacing modules in a BIP Procedure 6-3 (continued) Replacing the NT4K1472 BIP LED card Step Action Using a slotted screwdriver, loosen the two screws on the face of the LED card so they extend about 0.5 inches (13 mm) from the front of the BIP, as shown in Figure 6-4.
Page 91 Replacing modules in a BIP 6-9 Procedure 6-3 (continued) Replacing the NT4K1472 BIP LED card Step Action Grasp the two screws on the LED card and lift the card upward as high as it will go (about 0.4 inches (10 mm), as shown in Figure 6-5. Using the screws on the LED card as handles, push the bottom of the card inward (1.) and lower the screws from their retaining slots (2.).
Page 92 6-10 Replacing modules in a BIP Procedure 6-3 (continued) Replacing the NT4K1472 BIP LED card Step Action Carefully pull the card up and out of the BIP, as shown in Figure 6-6. If necessary, use the screws on the LED card as handles. Note: Avoid putting excessive strain on the cable attached to the back of the LED card.
Page 93 Replacing modules in a BIP 6-11 Procedure 6-3 (continued) Replacing the NT4K1472 BIP LED card Step Action Hold the replacement LED card on an angle and insert the bottom of the card down into the BIP opening, and continue inserting until the top of the card is completely inside the BIP opening as shown in Figure 6-7.
Page 94 6-12 Replacing modules in a BIP Procedure 6-3 (continued) Replacing the NT4K1472 BIP LED card Step Action Using the two retaining screws as handles, lift the LED card up and forward to engage the two screws with the slots on the top of the BIP opening (1.), as shown in Figure 6-8.
Page 95 Replacing modules in a BIP 6-13 Procedure 6-3 (continued) Replacing the NT4K1472 BIP LED card Step Action Note: There is a small retaining tab on the inside of the BIP, at the bottom, just behind the opening, as shown in Figure 6-9. This retaining tab mates with the notch on the bottom edge of the LED card to hold it securely in place.
Page 96 6-14 Replacing modules in a BIP Procedure 6-3 (continued) Replacing the NT4K1472 BIP LED card Step Action Figure 6-9 Reinserting the LED card PC-11175 FW-11175 Notch on LED card Retaining —end— AccessNode P0904244 Issue 1.0...
Page 97: Procedure
Replacing modules in a BIP 6-15 Procedure 6-4 Replacing a circuit breaker in the BIP Use this procedure to replace circuit breakers in the NT4K14AB/BA breaker interface panel (BIP). Requirements Read and adhere to all cautions and danger warnings. DANGER Risk of electric shock This procedure is done on live electrical circuits and poses a threat of electrical shock.
Page 98 6-16 Replacing modules in a BIP Procedure 6-4 (continued) Replacing a circuit breaker in the BIP Table 6-1 shows the NT4K14 circuit breaker replacement part ordering codes. Table 6-1 BIP NT4K14 circuit breaker ordering codes Breaker designation Rated Ordering code Amperage CE A CE B...
Page 99 Replacing modules in a BIP 6-17 Procedure 6-4 (continued) Replacing a circuit breaker in the BIP Action Step Action Note: If the system you are working on has power connected and active, you must always use fully insulated tools. Remove the BIP cover as shown in Figure 6-10. Loosen the thumb screw on the circuit breaker access panel (see Figure 6-10) and remove the panel.
Page 100 6-18 Replacing modules in a BIP Procedure 6-4 (continued) Replacing a circuit breaker in the BIP Step Action DANGER Risk of electric shock The BIP breaker panel contains live electrical connections which pose a threat of electrical shock. Be extremely careful to ensure that the circuit breaker leads and contact posts do not short out to the grounded BIP framework.
Page 101 Replacing modules in a BIP 6-19 Procedure 6-4 (continued) Replacing a circuit breaker in the BIP Step Action Figure 6-11 Replacing a BIP circuit breaker Upper BIP frame Locking latch location (on upper row of breakers) Circuit breaker (upper or lower row) Locking latch location (on lower row of breakers) Lower BIP frame OFF position shown...
Page 102 6-20 Replacing modules in a BIP AccessNode P0904244 Issue 1.0...
Page 103 Replacing modules in a common-equipment shelf This chapter provides procedures for replacing circuit packs, cards, and modules in an AccessNode access bandwidth manager (ABM) shelf. Observe and follow all safety precautions listed in Chapter 1, “Safety guidelines and warnings,” when handling circuit packs, cards, or modules. Chapter contents This chapter contains the following information: Topic...
Page 104 7-2 Replacing modules in a common-equipment shelf Topic Replacing an NT7E05 OC-12 VTBM optical interface (Note 2) page 7-37 Replacing an NT7E04 DS1/VT mapper page 7-45 Replacing an NT7E08 DS3 mapper page 7-50 Note 1 : The NT4K75 timing and cross-connect card is not used in fiber-fed applications.
Page 105: Replacing An Nt4K30 Ds3 I/O Card
Replacing modules in a common-equipment shelf 7-3 Procedure 7-1 Replacing an NT4K30 DS3 I/O card Use this procedure to replace an NT4K30 DS3 I/O card in an access bandwidth manager (ABM) shelf. Action Step Action CAUTION Possible loss of service Replacing the DS3 I/O card will cause a service failure to the DS3 input and output channel associated with it.
Page 106: Replacing An Nt4K31 Ds1 Protection Bridge Card
7-4 Replacing modules in a common-equipment shelf Procedure 7-2 Replacing an NT4K31 DS1 protection bridge card Use this procedure to replace a DS1 protection bridge card in an access bandwidth manager (ABM) shelf. CAUTION Protection unavailable Removing the DS1 protection bridge card causes protection to be inoperative for all DS1/VT mappers.
Page 107 Replacing modules in a common-equipment shelf 7-5 Procedure 7-2 (continued) Replacing an NT4K31 DS1 protection bridge card Step Action Unfasten the hold-down screw on the faceplate, as shown in Figure 7-1, and remove the protection bridge card from the shelf by pulling outward on the hanging tab.
Page 108 7-6 Replacing modules in a common-equipment shelf Procedure 7-2 (continued) Replacing an NT4K31 DS1 protection bridge card Step Action Install the replacement bridge card in the shelf and fasten the hold-down screw on the faceplate. From the detailed protection screen, release the protection switch lockout: lockout re p↵...
Page 109: Replacing An Nt4K32 Ds1 Input Card
Replacing modules in a common-equipment shelf 7-7 Procedure 7-3 Replacing an NT4K32 DS1 input card Use this procedure to replace a DS1 input card in an access bandwidth manager (ABM) shelf. Action Step Action Remove the ABM shelf cover as shown in Chapter 3, “Removing covers and grilles.”...
Page 110 7-8 Replacing modules in a common-equipment shelf Procedure 7-3 (continued) Replacing an NT4K32 DS1 input card Step Action Figure 7-2 Disconnecting the DS1 signal cable PC-10356 FW-10356 DS1 input card Typical DS1 cable that has been disconnected —end— AccessNode P0904244 Issue 1.0...
Page 111: Replacing Modules In A Common-Equipment Shelf
Replacing modules in a common-equipment shelf 7-9 Procedure 7-4 Replacing an NT4K33 DS1 output card Use this procedure to replace a DS1 output card in an access bandwidth manager (ABM) shelf. Action Step Action Remove the ABM shelf cover as shown in Chapter 3, “Removing covers and grilles.”...
Page 112 7-10 Replacing modules in a common-equipment shelf Procedure 7-4 (continued) Replacing an NT4K33 DS1 output card Step Action Figure 7-3 Disconnecting the DS1 cable PC-10357. FW-10357 DS1 output card Typical DS1 cable that has been disconnected —end— AccessNode P0904244 Issue 1.0...
Page 113: Replacing An Nt4K50 Side Interconnect Left
Replacing modules in a common-equipment shelf 7-11 Procedure 7-5 Replacing an NT4K50 side interconnect left Use this procedure to replace the side interconnect left circuit pack in an access bandwidth manager (ABM) shelf. CAUTION Service-affecting When you pull this circuit pack out of its slot, you thereby remove the terminations for various backplane signals, resulting in signal degradation and possible loss of traffic.
Page 114 7-12 Replacing modules in a common-equipment shelf Procedure 7-5 (continued) Replacing an NT4K50 side interconnect left Step Action Lift the ejector latches to disengage the circuit pack from the shelf, and pull it completely from its slot. Gently push the replacement circuit pack in until the ejector latches come in contact with the shelf.
Page 115: Procedure
Replacing modules in a common-equipment shelf 7-13 Procedure 7-6 Replacing an NT4K51 side interconnect right Use this procedure to replace the side interconnect right circuit pack in an access bandwidth manager (ABM) shelf. CAUTION Loss of service All connectors on the side interconnect right must be disconnected before removing the circuit pack.
Page 116: Procedure
7-14 Replacing modules in a common-equipment shelf Procedure 7-7 Replacing an NT4K52 processor card Use this procedure to replace a processor card in an access bandwidth manager (ABM) shelf. You must use the NT4K52FB processor card for the latest AccessNode software releases.
Page 117 Replacing modules in a common-equipment shelf 7-15 Procedure 7-7 (continued) Replacing an NT4K52 processor card Step Action CAUTION Possible loss of service DS1 and DS3 protection switching is unavailable during a switch of activity (SWACT) of the processor cards. If a DS1/VT mapper or a DS3 mapper fails while a SWACT is in progress, traffic cannot be switched to the protection mapper.
Page 118 7-16 Replacing modules in a common-equipment shelf Procedure 7-7 (continued) Replacing an NT4K52 processor card Step Action Wait at least 5 seconds before installing the replacement card. Gently push the replacement circuit pack into the shelf slot until the ejector latches come in contact with the front of the shelf.
Page 119: Procedure
Replacing modules in a common-equipment shelf 7-17 Procedure 7-8 Replacing an NT4K53 maintenance interface card Use this procedure to replace the maintenance interface card (MIC) in an access bandwidth manager (ABM) shelf. Requirements If a DS1 protection switch is in effect, clear the condition that resulted in the protection switch before replacing the MIC.
Page 120 7-18 Replacing modules in a common-equipment shelf Procedure 7-8 (continued) Replacing an NT4K53 maintenance interface card Step Action Investigate the condition that caused the DS1 protection switch to occur. Do not continue with this procedure until the DS1 protection switch is cleared. From the Network Element Status screen, display the maintenance interface equipment screen: eq mic↵...
Page 121 Replacing modules in a common-equipment shelf 7-19 Procedure 7-8 (continued) Replacing an NT4K53 maintenance interface card Step Action From the MIC equipment screen, change the state of the MIC to in service: chgstate is↵ The state of the MIC changes to IS. Replace the shelf cover.
Page 122: Procedure
7-20 Replacing modules in a common-equipment shelf Procedure 7-9 Replacing an NT4K54 test access card Use this procedure to replace a test access card (TAC) in an access bandwidth manager (ABM) shelf. Action Step Action From the network element status screen, display the TAC equipment screen: eq tac↵...
Page 123 Replacing modules in a common-equipment shelf 7-21 Procedure 7-9 (continued) Replacing an NT4K54 test access card Step Action If the automatic-in-service feature is set to on, and the circuit pack state automatically changes to in-service (IS), skip to step 9. From the TAC equipment screen, change the state of the replacement TAC to in-service: chgstate is↵...
Page 124: Procedure
7-22 Replacing modules in a common-equipment shelf Procedure 7-10 Replacing an NT4K55 access interface card Use this procedure to replace an access interface card (AIC) in an access bandwidth manager (ABM) shelf. Action Step Action If replacing Then go to an in-service AIC step 1 a failed or out of service AIC...
Page 125 Replacing modules in a common-equipment shelf 7-23 Procedure 7-10 (continued) Replacing an NT4K55 access interface card Step Action If the automatic-in-service feature is set to on, and the circuit pack state automatically changes to in-service (IS), skip to step 9. From the AIC equipment screen, change the state of the circuit pack to in-service: chgstate is↵...
Page 126: Procedure
7-24 Replacing modules in a common-equipment shelf Procedure 7-11 Replacing an NT4K56 transport interface card Use this procedure to replace a transport interface card (TIC) in an access bandwidth manager (ABM) shelf. Action Step Action If replacing Then go to a primary or secondary in-service TIC step 1 a failed or out-of-service TIC...
Page 127 Replacing modules in a common-equipment shelf 7-25 Procedure 7-11 (continued) Replacing an NT4K56 transport interface card Step Action Wait at least 10 seconds before installing the replacement card. Insert a replacement TIC in the shelf and gently push the replacement card in until the ejector latches come in contact with the shelf.
Page 128: Procedure
7-26 Replacing modules in a common-equipment shelf Procedure 7-12 Replacing an NT4K57 integrated remote test unit Use this procedure to replace the NT4K57 IRTU in an access bandwidth manager (ABM) shelf. CAUTION Risk of IRTU damage The IRTU requires careful handling. When returning the IRTU for repair, observe all handling and transporting precautions described in Chapter 1, “Safety guidelines and warnings,”...
Page 129 Replacing modules in a common-equipment shelf 7-27 Procedure 7-12 (continued) Replacing an NT4K57 integrated remote test unit Step Action Remove the ABM shelf cover as shown in Chapter 3, “Removing covers and grilles.” Remove the IRTU from the shelf. Wait at least 10 seconds before installing the replacement card. Insert a replacement IRTU into the shelf.
Page 130: Procedure
7-28 Replacing modules in a common-equipment shelf Procedure 7-13 Replacing an NT4K58LA serial I/O card Use this procedure to replace a serial I/O card in an access bandwidth manager (ABM) shelf. Action Step Action Remove the ABM shelf cover as shown in Chapter 3, “Removing covers and grilles.”...
Page 131 Replacing modules in a common-equipment shelf 7-29 Procedure 7-13 (continued) Replacing an NT4K58LA serial I/O card Step Action Figure 7-8 Disconnecting the cable from the serial I/O card PC-10090 FW-10090 I/O card bar code label mounting plate has been omitted for clarity. Note: —end—...
Page 132: Replacing An Nt4K58Ma Common-Equipment Power Card
7-30 Replacing modules in a common-equipment shelf Procedure 7-14 Replacing an NT4K58MA common-equipment power card Use this procedure to replace a common-equipment power (CEP) card in an access bandwidth manager (ABM) shelf. Action Step Action Remove the ABM shelf cover as shown in Chapter 3, “Removing covers and grilles.”...
Page 133 Replacing modules in a common-equipment shelf 7-31 Procedure 7-14 (continued) Replacing an NT4K58MA common-equipment power card Step Action Confirm the state change: y↵ The state changes to OOS. From the TIC equipment screen, display the AIC equipment screen for the AIC in the affected plane: eq aic <plane>↵...
Page 134 7-32 Replacing modules in a common-equipment shelf Procedure 7-14 (continued) Replacing an NT4K58MA common-equipment power card Step Action Figure 7-9 Disconnecting the power cable to the power card PC-10078 Power feed cable from breaker interface panel common equipment power connector FW-10078 Slot 55 Slot 54...
Page 135 Replacing modules in a common-equipment shelf 7-33 Procedure 7-14 (continued) Replacing an NT4K58MA common-equipment power card Step Action From any screen, select, the AIC on the affected plane: eq aic <plane>↵ where <plane> is the affected plane: a or b. The AIC equipment screen appears.
Page 136: Replacing An Nt4K75 Timing And Cross-Connect
7-34 Replacing modules in a common-equipment shelf Procedure 7-15 Replacing an NT4K75 timing and cross-connect Use this procedure to replace the NT4K75 timing and cross-connect (TXC) circuit pack in the access bandwidth manager (ABM) shelf. This circuit pack is used only in copper-fed RFT applications. If your application is fiber-fed, this circuit pack will not be in your system.
Page 137 Replacing modules in a common-equipment shelf 7-35 Procedure 7-15 (continued) Replacing an NT4K75 timing and cross-connect Step Action Switch service to the other TXC: forced op <group>↵ where <group> is the number of the TXC being replaced: g1 (slot 9) or g2 (slot 10). When a forced switch is operated, the screen displays an asterisk (*) in the Forced column.
Page 138 7-36 Replacing modules in a common-equipment shelf Procedure 7-15 (continued) Replacing an NT4K75 timing and cross-connect Step Action Change the state of the TXC card to in-service (IS): chgstate is↵ The state changes to IS. Did you replace a working or failed TXC card in steps 7 and 8? If you replaced a The go to working TXC card...
Page 139: Replacing An Nt7E05 Oc-12 Vtbm Optical Interface
Replacing modules in a common-equipment shelf 7-37 Procedure 7-16 Replacing an NT7E05 OC-12 VTBM optical interface Use this procedure to replace an OC-12 virtual tributary bandwidth manager (VTBM) optical interface in an access bandwidth manager (ABM) shelf. Certain steps carried out during the replacement of optical interface cards may require the handling of optical fibers without dust caps, and therefore increase the risk of exposure to laser radiation.
Page 140 7-38 Replacing modules in a common-equipment shelf Procedure 7-16 (continued) Replacing an NT7E05 OC-12 VTBM optical interface Step Action From the Network Element Status screen, display the OC-12 detailed protection screen: pr;dtlprot oc12↵ The detailed protection screen appears. Switch service from the OC-12 being replaced, to the standby OC-12: manual op <group>↵...
Page 141 Replacing modules in a common-equipment shelf 7-39 Procedure 7-16 (continued) Replacing an NT7E05 OC-12 VTBM optical interface Step Action Remove the ABM shelf cover as shown in Chapter 3, “Removing covers and grilles.” Remove the optical patch cords from the shelf fiber guides to provide sufficient slack for removing the circuit pack (as shown in Figure 7-10).
Page 142 7-40 Replacing modules in a common-equipment shelf Procedure 7-16 (continued) Replacing an NT7E05 OC-12 VTBM optical interface Step Action Pull on the circuit pack ejector latches to slightly withdraw the circuit pack to the extent necessary to disconnect it from the backplane connector (as shown in Figure 7-11).
Page 143 Replacing modules in a common-equipment shelf 7-41 Procedure 7-16 (continued) Replacing an NT7E05 OC-12 VTBM optical interface Step Action DANGER Risk of eye injury Do not look into, or otherwise expose your eyes to, the laser radiation possibly emitting from optical fibers. Doing this could cause serious eye damage.
Page 144 7-42 Replacing modules in a common-equipment shelf Procedure 7-16 (continued) Replacing an NT7E05 OC-12 VTBM optical interface Step Action Disconnect the optical patchcord or pigtail from the transmit biconic connector (as shown in Figure 7-13). Figure 7-13 Disconnecting the transmit connector PC-10354 FW-10354 Transmit (Out)
Page 145 Replacing modules in a common-equipment shelf 7-43 Procedure 7-16 (continued) Replacing an NT7E05 OC-12 VTBM optical interface Step Action Remove the circuit pack from the shelf. Wait at least 15 seconds before installing the replacement card. Without engaging the replacement circuit pack with the backplane connector, install the circuit pack in the shelf.
Page 146 7-44 Replacing modules in a common-equipment shelf Procedure 7-16 (continued) Replacing an NT7E05 OC-12 VTBM optical interface Step Action If the automatic-in-service feature is set to on, and the circuit pack state automatically changes to in-service (IS), skip to step 19. If the circuit pack state is out-of-service (OOS), proceed to step 18.
Page 147: Replacing An Nt7E04 Ds1/Vt Mapper
Replacing modules in a common-equipment shelf 7-45 Procedure 7-17 Replacing an NT7E04 DS1/VT mapper Use this procedure to replace a DS1/VT mapper circuit pack in an access bandwidth manager (ABM) shelf. CAUTION Loss of service If a DS1 is carrying TR-08 traffic, it will be provisioned on an NT7E04CA DS1/VT mapper.
Page 148 7-46 Replacing modules in a common-equipment shelf Procedure 7-17 (continued) Replacing an NT7E04 DS1/VT mapper Step Action At the Network element user interface (NEUI) detailed DS1 protection screen, ensure that there is no protection switching in effect. CAUTION Loss of service Ensure that there is no protection switching in effect before locking out the protection DS1/VT mapper.
Page 149 Replacing modules in a common-equipment shelf 7-47 Procedure 7-17 (continued) Replacing an NT7E04 DS1/VT mapper Step Action Switch service to the protection DS1/VT mapper: manual op <group>↵ y↵ where <group> is the group number of the DS1/VT mapper being replaced. Service is switched to the protection DS1/VT mapper circuit pack CAUTION Loss of service...
Page 150 7-48 Replacing modules in a common-equipment shelf Procedure 7-17 (continued) Replacing an NT7E04 DS1/VT mapper Step Action Figure 7-14 Removing the DS1/VT mapper card PC-10355 FW-10355 DS1/VT sync mapper Wait at least 5 seconds before installing the replacement card. Gently push the replacement circuit pack in until the ejector latches come in contact with the shelf.
Page 151 Replacing modules in a common-equipment shelf 7-49 Procedure 7-17 (continued) Replacing an NT7E04 DS1/VT mapper Step Action Determine the type of protection activity that was performed before the card was replaced: Then go to a protection lockout was performed step 13 a protection switch was performed step 14 no protection switch was performed...
Page 152: Replacing An Nt7E08 Ds3 Mapper
7-50 Replacing modules in a common-equipment shelf Procedure 7-18 Replacing an NT7E08 DS3 mapper Use this procedure to replace a DS3 mapper circuit pack in an access bandwidth manager (ABM) shelf. Action Step Action From the Network Element Status screen, display the DS3 protection screen: pr;dtlprot ds3↵...
Page 153 Replacing modules in a common-equipment shelf 7-51 Procedure 7-18 (continued) Replacing an NT7E08 DS3 mapper Step Action Switch service to the protection DS3 mapper: manual op <group>↵ y↵ where <group> is the group number of the DS3 mapper being replaced. Service is switched to the protection DS3 mapper circuit pack.
Page 154 7-52 Replacing modules in a common-equipment shelf Procedure 7-18 (continued) Replacing an NT7E08 DS3 mapper Step Action Figure 7-15 Removing the DS3 circuit pack PC-11381 FW-11381 DS3/STS mapper —continued— AccessNode P0904244 Issue 1.0...
Page 155 Replacing modules in a common-equipment shelf 7-53 Procedure 7-18 (continued) Replacing an NT7E08 DS3 mapper Step Action Wait at least 5 seconds before installing the replacement card. Gently push the replacement circuit pack in until the ejector latches come in contact with the shelf.
Page 156 7-54 Replacing modules in a common-equipment shelf AccessNode P0904244 Issue 1.0...
Page 157 Testing the batteries and rectifiers This chapter describes the tests to be performed on the rectifiers and batteries prior to acceptance and also to be completed at regular intervals to check the operation of the power system. Note: Some of these tests can only be completed on initial installation as the batteries and the rectifier have to be isolated from the equipment.
Page 158 8-2 Testing the batteries and rectifiers Warnings and cautions Prior to performing any rectifier replacement procedures, read each warning carefully. Important battery and rectifier information is presented here. DANGER Contents corrosive Do not open or mutilate batteries. Released electrolyte is toxic and corrosive and may damage eyes or skin. DANGER Risk of fire Remove all paper and any other combustible materials...
Page 159 DC voltage output levels testing If this is a new installation, the dc voltage output level from each rectifier module must be tested and adjusted according to Nortel Networks recommended float voltages for the following battery manufacturer. Johnson Control 12V: –54.50 ±0.10 V dc Note: These ranges are subject to change without notice.
Page 160 8-4 Testing the batteries and rectifiers CAUTION Do not mix battery types or sizes Do not mix batteries of different sizes or from different manufacturers in this product. CAUTION Observe polarities at all times Observe proper polarity orientation between batteries and battery charger.
Page 161: Rejuvenating The Batteries
Testing the batteries and rectifiers 8-5 Procedure 8-1 Rejuvenating the batteries Use this procedure to rejuvenate batteries used in the modular business package (MBP) master and expansion cabinets after the batteries have been placed in-service. Requirements CAUTION DC input voltage specifications The input voltage specifications require that the dc input to the BIP does not exceed –56.0 V dc.
Page 162 8-6 Testing the batteries and rectifiers Procedure 8-1 (continued) Rejuvenating the batteries Step Action Figure 8-1 Battery connections PC-15681 NT4K84DC FW-15681 from rectifier NT4K84BC NT4K81AB Terminal block NT4K84TB NT4K84BC NT4K84BB Battery circuit NT4K84BE breaker box —continued— AccessNode P0904244 Issue 1.0...
Page 163 Testing the batteries and rectifiers 8-7 Procedure 8-1 (continued) Rejuvenating the batteries Step Action After the rejuvenation process is completed, disconnect the battery rejuvenating device. Check the battery voltage on the newly rejuvenated string. Compare the voltage to the other strings. Note: The voltages should match as closely as possible (within 0.25 V dc) before reconnecting.
Page 164: Testing And Replacing The Batteries
8-8 Testing the batteries and rectifiers Procedure 8-2 Testing and replacing the batteries Use this procedure to test the batteries in the modular business package (MBP) master or expansion cabinets. To perform this test, the batteries have to be disconnected from the cabinet equipment. It is recommended that the batteries be removed from the cabinet and tested off-site.
Page 165 Testing the batteries and rectifiers 8-9 Procedure 8-2 (continued) Testing and replacing the batteries Figure 8-2 Battery retaining bar PC-15588 FW-15588 s s N s s N Rectifiers 3. Slide bar out 2. Remove bolts (typical left and right) 1. Turn breaker off Batteries MBP master cabinet —continued—...
Page 166 8-10 Testing the batteries and rectifiers Procedure 8-2 (continued) Testing and replacing the batteries Step Action Each battery is connected to the next with a red cable that goes from the negative (−) terminal of the battery on the left to a white cable that comes from the positive (+) terminal of the battery on the right.
Page 167 Testing the batteries and rectifiers 8-11 Procedure 8-2 (continued) Testing and replacing the batteries Step Action Figure 8-3 Battery connections PC-15681 NT4K84DC FW-15681 from rectifier NT4K84BC NT4K81AB Terminal block NT4K84TB NT4K84BC NT4K84BB Battery circuit NT4K84BE breaker box —continued— AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 168 8-12 Testing the batteries and rectifiers Procedure 8-2 (continued) Testing and replacing the batteries Step Action Interconnect four fully charged and tested batteries in the same series configuration as is used in the MPP cabinet. Refer to Figure 8-3. DANGER Risk of fire explosion Be extremely careful not to connect two cables from the same battery together.
Page 169 Testing the batteries and rectifiers 8-13 Procedure 8-2 (continued) Testing and replacing the batteries Step Action The batteries can be returned to the location of the MPP cabinet and reinstalled in the battery module. To do so move the batteries onto the shelf so that the positive (+) terminal is at the front.
Page 170: Replacing A Rectifier
8-14 Testing the batteries and rectifiers Procedure 8-3 Replacing a rectifier Use this procedure to replace an NT5C06 MPR25 rectifier in the modular business package (MBP) master cabinet. The MPR25 rectifier can be replaced in service without power interruption to the load (hot insert).
Page 171 Note: If only the cooling fan on the rectifier is defective, it can be replaced according to the replacement procedure in Nortel Networks Practice 169-2071-500, Equipment Installation Operation and Maintenance for MPR25 / MPR15 Series Single Phase –48 V, 25 A Switch Mode Rectifier NT5C06 .
Page 172: High Voltage Shutdown Adjustments For Replacement Rectifiers
8-16 Testing the batteries and rectifiers Procedure 8-4 High voltage shutdown adjustments for replacement rectifiers Use this procedure to adjust a replacement rectifier for high voltage shutdown in a modular business package (MBP) master cabinet that is currently carrying traffic. If the rectifiers that are to be replaced are installed in a new installation or in a cabinet that is not in-service, see Modular Business Package VTBM Ring Installation Guide, for rectifier installation And adjustment.
Page 173 Testing the batteries and rectifiers 8-17 Procedure 8-4 (continued) High voltage shutdown adjustments for replacement rectifiers Rectifier and battery adjustments and connections Table 8-1 shows the Nortel Networks recommended rectifier settings for the optional battery selections. Table 8-1 Rectifier adjustment settings...
Page 174 8-18 Testing the batteries and rectifiers Procedure 8-4 (continued) High voltage shutdown adjustments for replacement rectifiers Step Action Figure 8-4 MPR25 (NT5C05CA-3) rectifier PC-11099 FW-11099 Equalizer/float switch and adjust Fan alarm HVSD adjust HVSD Rectifier On/fail ON/RFA Circuit breakers OUTPUT 3/4A 250V LOAD Inrush current...
Page 175 Testing the batteries and rectifiers 8-19 Procedure 8-4 (continued) High voltage shutdown adjustments for replacement rectifiers Step Action Verify the voltage reading on the DVM. CAUTION Risk of equipment damage When increasing or decreasing the float voltage on a working system with batteries connected, always proceed very slowly.
Page 176 8-20 Testing the batteries and rectifiers Procedure 8-4 (continued) High voltage shutdown adjustments for replacement rectifiers Step Action Verify the HVSD level: If the HVSD Then occurred at –56.0 V dc Go to step 10. occurred before –56.0 V dc Slowly and slightly adjust the HVSD potentiometer clockwise to increase the HVSD limit.
Page 177: Setting Equalize (Eql) Voltage Level
Screwdriver, slotted, small (0.1-inch width) Cautions Observe all cautions listed in the beginning of this chapter. Rectifier and battery adjustments and connections Table 8-2 shows the Nortel Networks recommended rectifier settings for the optional battery selections. Table 8-2 Rectifier adjustment settings...
Page 178 8-22 Testing the batteries and rectifiers Procedure 8-5 (continued) Setting equalize (EQL) voltage level Action Step Action Turn the FLT POT counterclockwise to reduce the voltage (about two turns). CAUTION Risk of equipment damage When increasing or decreasing the float voltage on a working system with batteries connected, always proceed very slowly.
Page 179: Adjusting The Float Voltage
Screwdriver, slotted, small (0.1-inch width) Cautions Observe all cautions listed in the beginning of this chapter. Rectifier and battery adjustments and connections Table 8-3 shows the Nortel Networks recommended rectifier settings for the optional battery selections. Table 8-3 Rectifier adjustment settings...
Page 180 8-24 Testing the batteries and rectifiers Procedure 8-6 (continued) Adjusting the float voltage Action Step Action Set the EQL/FLT switch to the FLT position. Note: The EQL/FLT switch on the rectifier must be in the FLT position when adjusting the float voltage. Insert the test leads of the digital voltmeter (DVM) into the test points (negative to negative, positive to positive).
Page 181: Load Sharing Adjustments For Replacement Rectifiers
Screwdriver, slotted, small (0.1-inch width) Cautions Observe all cautions listed in Module Replacement Procedures, 323-3001-547, Volume 5C. Rectifier and battery adjustments and connections Table 8-4 shows the Nortel Networks recommended rectifier settings for the optional battery selections. Table 8-4 Rectifier adjustment settings Battery...
Page 182 Repeat from Step 1 until all rectifiers RFA LED are illuminated GREEN. Examine and compare the display of the ammeters on the rectifiers. Note: Nortel Networks recommends that the ammeters of all installed rectifiers read within 0.1 A of each other for proper load sharing.
Page 183 Testing the batteries and rectifiers 8-27 Procedure 8-7 (continued) Load sharing adjustments for replacement rectifiers Step Action Adjust the FLOAT voltage of the rectifier that has the lowest current reading on the rectifier ammeter display by: a. slowly and very slightly adjusting the FLT potentiometer clockwise until the ammeter reading is no longer the lowest of the installed rectifiers.
Page 184 8-28 Testing the batteries and rectifiers AccessNode P0904244 Issue 1.0...
Page 185 Replacing the low-voltage disconnect unit This chapter describes the procedures to be performed to replace the low- voltage disconnect (LVD) unit at the rear of the modular business package (MBP) master cabinet. CAUTION Service affecting procedure This is a service-affecting procedure. Perform this procedure during low traffic hours.
Page 186 CAUTION DC voltage output levels testing The dc voltage output level from each rectifier module must be tested and adjusted according to Nortel Networks recommended float voltages for the following battery manufacturer: Johnson Control 12V, –54.50 ±0.10 V dc.
Page 187: Removing And Installing An Lvd
Replacing the low-voltage disconnect unit 9-3 Procedure 9-1 Removing and installing an LVD Use this procedure to remove and reinstall an LVD in the modular business package (MBP) master cabinet. CAUTION Service affecting procedure This is a service affecting procedure. Perform this procedure during low traffic hours.
Page 188 9-4 Replacing the low-voltage disconnect unit Procedure 9-1 (continued) Removing and installing an LVD Step Action Figure 9-1 LVD location PC-15603 Master cabinet (rear view) FW-15603 Pedestal dc distribution unit Low-voltage disconnect (LVD) unit —continued— AccessNode P0904244 Issue 1.0...
Page 189 Replacing the low-voltage disconnect unit 9-5 Procedure 9-1 (continued) Removing and installing an LVD Step Action Set the new unit and its cover plate aside. Figure 9-2 Removing the LVD cover plate PC-15436 FW-15436 I S C Side panel 1 - 1 screws (4) Front panel screws (4)
Page 190 9-6 Replacing the low-voltage disconnect unit Procedure 9-1 (continued) Removing and installing an LVD Step Action Powering down the system Remove the front BEM cover panels on the master and expansion cabinets. Access the rear of the master cabinet and remove the upper rear BEM cover panel.
Page 191 Replacing the low-voltage disconnect unit 9-7 Procedure 9-1 (continued) Removing and installing an LVD Step Action Remove the LVD cover plate by removing the 8 flat-head mounting screws as shown in Figure 9-2. Label and then disconnect the red and white leads of the NT4K84XA cable from the LVD bus bar as shown in Figure 9-4.
Page 192 9-8 Replacing the low-voltage disconnect unit Procedure 9-1 (continued) Removing and installing an LVD Step Action Installing the new LVD Set the options switches on the new LVD to the same settings as on the old LVD unit. Mount the replacement LVD into the same place that the old LVD was removed using the same 4 mounting bolts.
Page 193: Restoring Power To The System
Procedure 9-2 Restoring power to the system Use this procedure to restore power to the MBP system after replacing an LVD unit. Table 9-1 shows the Nortel Networks recommended rectifier settings for the optional battery selections. Table 9-1 Rectifier adjustment settings...
Page 194: Verifying The Lvd Indicators
9-10 Replacing the low-voltage disconnect unit Procedure 9-3 Verifying the LVD indicators Use this procedure to verify the operation of the LED indicators in the modular business package (MBP) low-voltage disconnect (LVD) unit mounted in the rear of the master cabinet. The LEDs on the LVD unit (see Figure 9-5) indicate alarm and status conditions for the rectifiers and the LVD.
Page 195 Replacing the low-voltage disconnect unit 9-11 Procedure 9-3 (continued) Verifying the LVD indicators Figure 9-5 Low-voltage disconnect (LVD) unit PC-15678 75A LOW VOLTAGE DISCONNECT/ FW-15678 ALARM / RFA MUX SENSE 1-1/3 A NORM LVD BYP LVD ADJ TEST ADJ TEST / BYP LVDR ADJ BAT GND - 48V...
Page 196 9-12 Replacing the low-voltage disconnect unit Procedure 9-3 (continued) Verifying the LVD indicators Action Step Action Verify the RFA MIN alarm indicator Turn the ac and then the dc breakers on rectifier 1 to the OFF position. The RFA MIN red LED illuminates, indicating a minor rectifier failure alarm. Turn the dc and then the ac breakers on rectifier 1 to the ON position.
Page 197: Adjusting The Lvd Unit
Replacing the low-voltage disconnect unit 9-13 Procedure 9-4 Adjusting the LVD unit Use this procedure to adjust and verify the operation of the modular business package (MBP) low-voltage disconnect (LVD) unit mounted in the rear of the master cabinet. The threshold adjustments and settings for the LVD unit and the float voltage for the batteries are: Threshold Setting (V dc)
Page 198 9-14 Replacing the low-voltage disconnect unit Procedure 9-4 (continued) Adjusting the LVD unit Action Step Action Set the BYP/NORM switch to the BYP position. On the dc distribution unit, turn all circuit breakers (CB1–CB4) to the OFF position. Set the LVA threshold to –47.0 ± 0.2 V dc Connect the digital multimeter, set to read dc volts, to the test jacks on the faceplate of the LVD unit.
Page 199 Replacing the low-voltage disconnect unit 9-15 Procedure 9-4 (continued) Adjusting the LVD unit Step Action Slowly turn the LVD ADJ potentiometer clockwise until the LVD ALM LED illuminates. Then go to step 17. If the LVD ALM LED illuminates before reaching −42.5 ± 0.2 V dc, continue to turn the TEST ADJ potentiometer counterclockwise until the voltage reading reaches –42.5 V dc.
Page 200: Adjusting The Load Sharing
Equipment Installation Operation and Maintenance for MPR25/MPR15 Series Single Phase –48 V, 25 A Switch Mode Rectifier NT5C06, 169-2071-500 Table 9-2 shows the Nortel Networks recommended rectifier settings for Johnson Control 12/125 batteries. These settings are referenced throughout the procedure.
Page 201 Examine and compare the display of the ammeters on the rectifiers. Note: Nortel Networks recommends that the ammeters of all installed rectifiers read within 0.1 A of each other for proper load sharing. Adjust the FLOAT voltage of the rectifier that has the lowest current reading on the rectifier ammeter display by slowly and very slightly adjusting the FLT potentiometer clockwise until the ammeter reading is no longer the lowest.
Page 202: Return The System To Service
9-18 Replacing the low-voltage disconnect unit Procedure 9-6 Return the system to service Use this procedure to return the system to service after replacing an LVD unit in the modular business package (MBP). If you can not successfully complete this procedure, contact your next level of support.
Page 203 10-1 MBP routine maintenance This chapter provides procedures for performing routine maintenance on modular business package (MBP) master and expansion cabinets. Chapter contents This chapter contains the following information: Topic Routine maintenance intervals page 10-1 Checking and adjusting rectifier voltages page 10-2 Changing the MBP air filter page 10-6...
Page 204: Checking And Adjusting Rectifier Voltages
Test sets Fluke 8050A rms voltmeter (or equivalent) Tools required Slotted screwdriver (small, 0.1 in. blade) Table 10-1 shows the Nortel Networks recommended rectifier settings for a number of battery types. These settings are referenced throughout the procedure. Table 10-1...
Page 205 MBP routine maintenance 10-3 Procedure 10-1 (continued) Checking and adjusting rectifier voltages Step Action Adjust the Equalize voltage Ensure that the ac and the dc circuit breakers on all rectifiers are in the OFF position (see Figure 10-1). Turn the rectifier 1 FLT potentiometer 2 turns counterclockwise. Turn ON the dc then the ac circuit breakers on rectifier 1.
Page 206 10-4 MBP routine maintenance Procedure 10-1 (continued) Checking and adjusting rectifier voltages Step Action Figure 10-1 MPR25 rectifier faceplate PC-11099 FW-11099 Equalizer/float switch and adjust Fan alarm HVSD adjust HVSD Rectifier On/fail ON/RFA Circuit breakers OUTPUT 3/4A 250V LOAD Inrush current Test Current Filter...
Page 207 Examine and compare the display of the ammeters on the rectifiers. Note: Nortel Networks recommends that the ammeters of all installed rectifiers read within 0.1 A of each other for proper load sharing. Adjust the FLOAT voltage of the rectifier that has the lowest current reading on the rectifier ammeter display by slowly and very slightly adjusting the FLT potentiometer clockwise until the ammeter reading is no longer the lowest.
Page 208: Changing The Mbp Air Filter
10-6 MBP routine maintenance Procedure 10-2 Changing the MBP air filter Use this procedure to change the air filter in the modular business package (MBP) cabinets every 6 months, or sooner if required. The frequency of replacement depends on the environmental conditions in the equipment location.
Page 209 MBP routine maintenance 10-7 Procedure 10-2 (continued) Changing the MBP air filter Step Action Figure 10-2 Removing the MBP pedestal grille PC-10852 FW-10852 2. Grasp 3. Tilt and lift 2. Grasp 1. Loosen captive screws —continued— AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 210 10-8 MBP routine maintenance Procedure 10-2 (continued) Changing the MBP air filter Step Action Pull the filter toward you to withdraw it from its slot, as shown in Figure 10-3. Insert the replacement filter into the slot. Figure 10-3 Removing the MBP air filter PC-10900 FW-10900 Air filter...
Page 211 MBP routine maintenance 10-9 Procedure 10-2 (continued) Changing the MBP air filter Step Action Replace the pedestal grille as shown in Figure 10-4. Figure 10-4 Installing the MBP pedestal grille PC-10853 FW-10853 2. Swing closed 3. Tighten captive screws 1. Align lugs and insert grille —end—...
Page 212: Replacing The Nt4K2630 Mbp Blower Module
10-10 MBP routine maintenance Procedure 10-3 Replacing the NT4K2630 MBP blower module Use this procedure to replace the NT4K2630 blower module housed in the pedestal of the modular business package (MBP) cabinets. Action Step Action Remove the front pedestal grille from the MBP cabinet, as shown in Figure 10-5: a.
Page 213 MBP routine maintenance 10-11 Procedure 10-3 (continued) Replacing the NT4K2630 MBP blower module Step Action Figure 10-5 Removing MBP pedestal grille PC-10852 FW-10852 2. Grasp 3. Tilt and lift 2. Grasp 1. Loosen captive screws —continued— AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 214 10-12 MBP routine maintenance Procedure 10-3 (continued) Replacing the NT4K2630 MBP blower module Step Action Insert the replacement blower module into the pedestal and slide it all the way in until it engages with the connector at the rear of the pedestal. Turn the 2 screws on the blower module clockwise until the cam is rotated 90 degrees.
Page 215 MBP routine maintenance 10-13 Procedure 10-3 (continued) Replacing the NT4K2630 MBP blower module Step Action Set the blower module circuit breaker to the up (on) position. Install the pedestal grille, as shown in Figure 10-7. Figure 10-7 Installing the MBP pedestal grille PC-10853 FW-10853 2.
Page 216 10-14 MBP routine maintenance AccessNode P0904244 Issue 1.0...
Page 217: Contents
11-1 Ordering information This chapter lists the description and ordering information for Modular Business Package (MBP) VTBM-ready cabinets. Engineering and Ordering Information, 323-3001-032, in Engineering, Configuration, and Ordering, Volume 1, contains additional information for ordering AccessNode equipment. Chapter contents This chapter contains the following information: Topic Ordering tables for MBP equipment page 11-2...
Page 218: Mbp Vtbm Cabinets
11-2 Ordering information MBP VTBM cabinets This document and the ordering tables that follow provide ordering information for the MBP VTBM cabinets listed below: Table 11-1 MBP VTBM cabinet ordering Cabinet Modular Business Package Virtual Tributary NT4K06ED A0640302 Bandwidth Manager (VTBM) master cabinet Modular Business Package Virtual Tributary NT4K06BB A0642147...
Page 219: Miscellaneous Mbp Parts
Ordering information 11-3 Miscellaneous MBP parts Table 11-3 lists orderable miscellaneous MBP parts. Table 11-3 Ordering miscellaneous MBP parts Description Anti-static wrist strap, 2212 A0336175 Cover assembly (BEST-lock) NT4K08CA A0619067 CDS label kit NT4K1222 A0397900 CDS mounting bar P0834825 DEM separator assembly NT4K2412 A0398980 Hub and remote spares kit...
Page 220: Mbp Cables
11-4 Ordering information MBP cables Table 11-4 lists the orderable cables for the VTBM-ready MBP cabinets. Note: Fiber optic cabling options are dependent on the type of optical carrier interface units (OC-12 and OC-3) you are using. Table 11-4 MBP cables Description 8-fan shelf power cable NT4K80BA...
Page 221 Ordering information 11-5 Table 11-4 (continued) MBP cables Description DS1 cable, 50 ft NT4K85HH A0401069 DS1 cable, 100 ft NT4K85HA A0375505 DS1 cable, 150 ft NT4K85HB A0395066 DS1 cable, 200 ft NT4K85HJ A0401070 DS1 cable, 250 ft NT4K85HC A0396268 DS1 cable, 350 ft NT4K85HD A0396269 DS1 cable, 450 ft...
Page 222 11-6 Ordering information Table 11-4 (continued) MBP cables Description PDU fan alarm cable NT4K82EA A0398921 PDU power cable NT4K84GA A0398920 PDU power and alarm cable to expansion cabinet NT4K84KB A0648004 Rectifier to dc panel cable assembly NT4K84WD A0648791 Thermal sensor cable harness NT4K2210 A0398044 Test access cable, 100 ft...
Page 223 Ordering information 11-7 Table 11-4 (continued) MBP cables Description Fiber patch cord 3 m (10 ft) (ST) NT7E46CF A0351099 Fiber patch cord 5 m (16 ft) (ST) NT7E46CA A0351099 Fiber patch cord 10 m (33 ft) (ST) NT7E46CB A0351100 Fiber patch cord 15 m (49 ft) (ST) NT7E46CC A0351101 Fiber patch cord 20 m (66 ft) (ST)
Page 224 11-8 Ordering information Table 11-4 (continued) MBP cables Description Fiber patch cord with MVOA 5 m (16 ft) (SC) NT7E47FA A0408379 Fiber patch cord with MVOA 10 m (33 ft) (SC) NT7E47FB A0408380 Fiber patch cord with MVOA 15 m (49 ft) (SC) NT7E47FC A0408381 Fiber patch cord with MVOA 20 m (66 ft) (SC)
Page 225: Equipment Circuit Packs And Modules
Ordering information 11-9 Equipment circuit packs and modules Use the following tables to order circuit packs. ABM shelf circuit packs Table 11-5 lists the orderable common-equipment circuit packs in the access bandwidth manager shelf in VTBM-ready MBP cabinets. Table 11-5 Access bandwidth manager shelf circuit packs Description Processor card (Note 1)
Page 226 11-10 Ordering information Table 11-5 (continued) Access bandwidth manager shelf circuit packs Description Timing and cross-connect card (Note 4) NT4K75AA A0617179 Note 4: The timing and cross-connect card is used in the access bandwidth manager shelf in a DS1-fed RFT that connects to its operations controller by way of an OMC DS1. It is also used in an ABM OPC shelf that connects to one or more DS1-fed RFTs by way of OMC DS1s.
Page 227 Ordering information 11-11 Table 11-5 (continued) Access bandwidth manager shelf circuit packs Description OC-3 SRP IR (SC) NT7E01DD A0398149 Note 5: The NT7E05 OC-12 optical interface units are required to support VTBM and OC-3 tributary features for applications using AN12 software release or higher. VTBM features are not supported by AN11 software release.
Page 228: Copper-Distribution Shelf Circuit Packs
11-12 Ordering information Copper-distribution shelf circuit packs Table 11-6 lists the orderable copper distribution shelf circuit packs for the AccessNode system in VTBM-ready MBP cabinets. Table 11-6 Copper-distribution shelf circuit packs Description Copper-distribution drawer midplane NT4K21AA A0370341 Copper-distribution shelf power converter NT4K62AA A0370318 Power-converter backplane...
Page 229: Breaker Interface Panel
Ordering information 11-13 Breaker interface panel Table 11-7 lists the orderable NT4K14AB/BA breaker interface panel components for the AccessNode system in VTBM-ready MBP cabinets. Table 11-7 Breaker interface panel circuit packs Description Talk battery filter card for the NT4K14AB BIP NT4K61AA A0389030 Talk battery filter card for the NT4K14BA BIP...
Page 230: Related Documentation
11-14 Ordering information Related documentation The documentation related to the MBP and their ordering codes (where applicable) are listed below: • Complete set AccessNode NTPS • Quick Reference Guide • MBP VTBM Ring Installation Guide • Software booklet • CD-ROM AccessNode P0904244 Issue 1.0...
Page 231: Technical Support Information
12-1 Technical support information This section lists the technical support available for AccessNode. Note: AccessNode Express products are serviced by the AccessNode support team detailed in this section. 24-hour emergency technical assistance This section explains how to contact 24 hour emergency technical assistance. If you are here...
Page 232 Call customer service and... ship defective unit prepaid to... (800) 251-1758 and request Mark the defective item Nortel Networks a Repair Order Number. with the following: 917 Air Park Center Drive Nashville, TN 37217 7:00 am–6:00 pm CST • assigned repair order...
Page 233 A replacement circuit pack is shipped within 24 hours of receiving the order. Call customer service and... ship prepaid to... (800) 251-1758 1. Give the following: Nortel Networks • name 917 Air Park Center Dr. and request an emergency • company name Nashville, TN 37217 replacement.
Page 234 12-4 Technical support information AccessNode P0904244 Issue 1.0...
Page 235: List Of Acronyms
13-1 List of acronyms Access bandwidth manager Alarm cut-off Access interface card BDFB Battery distribution fuse board Battery equipment module Breaker interface panel Copper-distribution shelf CDSP Copper-distribution shelf power Canadian Standards Association Dual equipment module Digital signal level 0 Digital signal level 1 AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 236 13-2 List of acronyms Digital signal level 3 DSX-1 Digital signal cross connect Field expansion module Input/Output IRTU Integrated remote test unit Light emitting diode LCAP Local craft access power Line interface card Modular business package Maintenance interface card Modular power rectifier MTAC Metallic test access card MVOA...
Page 237 List of acronyms 13-3 Power distribution unit Remote fiber terminal Single equipment module STS-1 SONET transport signal level 1 STS-3 SONET transport signal level 3 STSBM SONET transport signal bandwidth manager Virtual tributary VTBM Virtual tributary bandwidth manager AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 238 13-4 List of acronyms AccessNode P0904244 Issue 1.0...
Page 239: Index
14-1 Index Blower module replacing for VTBM MBP 10-10 ABM. See Access bandwidth manager bay or BNC I/O card shelf replacing in VTBM MBP 7-3 ac power Breaker interface panel input for Virtual tributary bandwidth model NT4K14 manager Modular business alarm relay card replacing in VTBM package 2-28 MBP 6-2...
Page 240 14-2 Index Cabinet (continued) Cover (continued) removing DEM separator bars pedestal grille VTBM MBP 3-10 removing in VTBM MBP 3-6 removing pedestal grille side panel VTBM MBP 3-6 removing in VTBM MBP 3-4 removing top cap top cap grille VTBM MBP 3-8 removing in VTBM MBP 3-8 types VTBM MBP 2-7...
Page 241 Index 14-3 Metallic test access card replacing in VTBM MBP 5-13 Float voltage Modular Business Package adjusting in Virtual tributary bandwidth battery manager Modular business rejuvenating in Virtual tributary package 8-23 bandwidth manager Modular Business adjusting in VTBM MBP 10-3 Package 8-5 replacing in Virtual tributary bandwidth manager 8-8...
Page 242 14-4 Index MPR 25 rectifier Rectifier, adjusting (continued) adjusting float voltage for VTBM high voltage shutdown in Virtual MBP 10-3 tributary bandwidth manager Modular faceplate in VTBM MBP 10-4 business package 8-16 position numbering for Virtual tributary load sharing in Virtual tributary bandwidth manager Modular Business bandwidth manager Modular business Package 2-14...
Page 243 Index 14-5 Universal voice grade station line card replacing in VTBM MBP 5-5 Virtual tributary bandwidth manager Modular business package cabinet specifications 2-28 weight 2-28 equipment and cabling configurations 2-1 VTBM documentation for VTBM MBP 11-14 ordering cabinets for VTBM MBP 11-2 Warning and safety precautions 1-1 AccessNode Modular Business Package VTBM Ring User Guide P0904244 Issue 1.0...
Page 244 14-6 Index AccessNode P0904244 Issue 1.0...
Page 246 Northern Telecom reserves the right to make changes to equipment design or program components, as progress in engineering, manufacturing methods, or other circumstances may warrant. ACCESSNODE, NORTEL, and NORTEL NETWORKS are trademarks of Northern Telecom. Document release: Issue 1.0 Date: June 1999...

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