Page 1 450-1011-201 Network Operations Systems DNC-50, DNC-100, DNC-500 Dynamic Network Control Systems Installation Guide for Cabinet Systems Release: NSR27/28 03 Status: Standard...
Page 3 Dynamic Network Control Systems Installation Guide for Cabinet Systems Publication number: 450-1011-201 Product release: NSR 27/28 03 Document release: Standard Date: March 30, 1990 © 1990 Northern Telecom * DNC-50, DNC-100 and DNC-500 are trademarks of Northern Telecom. Practice 450-1011-201...
Page 4 Revision History March 30, 1990 Release NSR27/28 03 Table 15-B, ALIU Options Settings, has been revised to include Alarm Output Options. January 24, 1990 Release NSR27/28 02 The section "Installing the LAN Interface Unit" has been revised to include a caution message about the proper connection of power to the LIU.
Page 5: Table Of Contents
Table of Contents Revision History Table of Contents 1. Introduction Document Release Information How to Use this Document 2 A Summary of System Installation Getting Ready 2. Preparing the Floor Area for the Cabinets 3. Unpacking and Inspecting the Equipment Checking the Packing Lists 9 Unpacking the Cabinets Unpacking the Shared Resource Units...
Page 6 iv Table of Contents Installing the Analog Line Cards Removing an SRU from a Cabinet Restarting the System after the Removal of an SRU 53 7. Installing the Cross-connect Panel About the Cross-connect Panel Before Making Cross-connections Unpacking the Office Cross-connect Panel 59 How to Install the Office Cross-connect Panel 8.
Page 7 Table of Contents v Inserting the Tape Cartridge into the 1/4-shelf Disk/Tape SRU Removing a Tape Retensioning a Tape 14. Powering Up the System 15. Installing the Alarm System 16. How to Connectorize Cables Connectorization Using the MI-1 Tool Connectorization of DS1 Cables (CERTI-CRIMP) 17.
Page 9: Introduction
1. Introduction This document provides detailed installation instructions for cabinet-based DNC-50, DNC-100 and DNC-500 Dynamic Network Control Systems. (For rack-mounted systems, see the Installation Guide for Bay Systems, 450-1011-202.) This document assumes that you are familiar with the equipment and are trained in telephony installation tasks.
Page 10: How To Use This Document
In such cases, refer to the manufacturer's documentation for special instructions. Also, there may be special environmental, electrical, or space requirements for equipment not supplied by Northern Telecom. Again, refer to the manufacturer's documentation for details. The installation process follows this sequence, of which each step is detailed in a subsequent part of this installation guide: Prepare the floor area for the cabinets.
Page 11: Getting Ready
Introduction 3 Install the peripheral and external equipment according to the floor plan and wiring logs. When all connections have been made and verified, initialize the system according to the instructions in the Guide to DNC Base Software Installation, 450-1011-302. (That document is available to authorized system installers.) Getting Ready Before unpacking and installing the equipment, you should ensure that you...
Page 12 4 Introduction QTBIX16A connection tool Measuring tape. MATERIALS: Roll of adhesive tape, durex acetate fiber Felt pen Pencil. This item is available from Northern Telecom. See your NT sales representative. Practice 450-1011-201...
Page 13: Preparing The Floor Area For The Cabinets
2. Preparing the Floor Area for the Cabinets Before unpacking the cabinets, you must ensure that the installation area is prepared for the equipment. You should have at hand the floor plan, which is found in the Site Records, 450-1011-152, in the section labelled ‘Floor Plan’, and the following tools and materials: TOOLS: Small wire cutter for plastic tie-wraps...
Page 14 6` Preparing the Floor Area for the Cabinets Marking the Floor for the Cabinets. The floor should be marked with the outline of the cabinets to facilitate their line-up and leveling. This can be done with masking tape and a marker. Refer to the floor plan in the Site Records, 450-1011-152.
Page 15 Preparing the Floor Area for the Cabinets 7 Figure 2-2 Space Requirements for the Cabinets Allow 610 mm (24 in.) Rear Door REAR 560 mm (22 in.) FRONT Front Door 90 mm (3.5 in.) Allow Allow Allow 610 mm 9.5 mm 9.5 mm (3/8 in.) (3/8 in.)
Page 17: Unpacking And Inspecting The Equipment
3. Unpacking and Inspecting the Equipment Before Starting. All system equipment is packed for maximum protection against damage during shipment. However, inspect the shipping containers for evidence of damage when receiving the equipment. Report any damage to the transportation company immediately. Next, check the shipping containers against the packing list provided with the delivery.
Page 18 10 Unpacking and Inspecting the Equipment Figure 3-1 Unpacking the Equipment Carton containing SRUs Packing Material Cartons containing jumper assemblies, feet, AC power cable, cabinet interlocks, rear doors, fan grills, and plastic air flow slot covers. Packing Material Carton containing cabinet Practice 450-1011-201...
Page 19: Unpacking The Cabinets
Unpacking and Inspecting the Equipment 11 Unpacking the Cabinets - CAUTION - The system cabinets contain electronic equipment that is sensitive to electrostatic discharge and rough handling. Avoid any undue stress, electrostatic discharge, shock, or vibration when handling, moving, and unpacking the cabinets. Do not touch the backplane connectors. With the assistance of another person, move the cabinets and other equipment in their shipping cartons to the installation area using the truck dolly.
Page 20: Unpacking The Shared Resource Units
12 Unpacking and Inspecting the Equipment contents and inspect them for damage. Report any damage to the transportation company immediately. Unpacking the Shared Resource Units - CAUTION - The SRUs are sophisticated electronic devices that are sensitive to electrostatic discharge and rough handling. Avoid any undue stress, electrostatic discharge, shock, or vibration when handling, moving, and unpacking the SRUs.
Page 21: Unpacking The Line Cards For The Analog Link Sru
Unpacking and Inspecting the Equipment 13 Unpacking the Line Cards for the Analog Link SRU - CAUTION - The line cards are sophisticated electronic devices that are sensitive to electrostatic discharge and rough handling. Avoid any undue stress, electrostatic discharge, shock, or vibration when handling, moving, and unpacking the cards.
Page 23: Installing The Cabinets
4. Installing the Cabinets This procedure describes how to install cabinets in new systems, then describes how to add cabinets to an existing lineup. It assumes the cabinets have been moved to the installation area, unpacked, and inspected according to Part 3. The procedure involves positioning the cabinets and installing the interconnecting hardware, which is shipped in separate cartons.
Page 24: Installing Cabinets In A New System
Installing a -48 Vdc Power Distribution System Flat washer, #6 Hingeplate. TOOLS: Flat-blade screwdriver Carpenter's level Hexagonal nutdriver (1/4 inches) Allen wrench (5/64 inches) Small wire cutter for plastic tie-wraps. Installing Cabinets in a New System IMPORTANT: When adding a cabinet to an existing system, refer to the procedure ‘Adding a Cabinet to an Existing System’, later in this part, for instructions.
Page 25 Installing a -48 Vdc Power Distribution System 17 Figure 4-1 Adjusting the Cabinet Feet Practice 450-1011-201...
Page 26 Installing a -48 Vdc Power Distribution System Adjust the pad feet clockwise or counterclockwise as required until the cabinet is level. This is extemely important: • All cabinet tops must be in one level plane, with no horizontal or vertical deviation. (See Fig. 4-2.) This can best be achieved if the floor is level.
Page 27 Installing a -48 Vdc Power Distribution System 19 Figure 4-2 Aligning the Cabinets Level Up to a maximum of 8 cabinets Practice 450-1011-201...
Page 28 Installing a -48 Vdc Power Distribution System Figure 4-3 Joining Cabinets (11) Install the horizontal jumper assembly between the cabinets according to the procedure ‘Installing the Horizontal Jumper Assembly’, later in this part. This will help lock the two cabinets together and ensure the proper spacing between them.
Page 29: Installing The Cabinet Jumper Assemblies
Installing a -48 Vdc Power Distribution System 21 (12) Repeat Steps 1 to 11 for each additional cabinet being installed. Note: It may be necessary to make further leveling adjustments after the shared resource units are installed, as the weight of the SRUs can cause the cabinets to shift somewhat.
Page 30 Installing a -48 Vdc Power Distribution System Figure 4-4 Inserting the Foot Supports IMPORTANT: The rear doors can be installed to open from either the left or the right. Decide which way you would like them to open. To open from the right, you must install a hingepin at the bottom of the cabinet input jumper assembly and to the right side of each horizontal jumper assembly.
Page 31: Installing The Horizontal Jumper Assembly
Installing a -48 Vdc Power Distribution System 23 Installing the Horizontal Jumper Assembly A horizontal jumper assembly is required between each pair of cabinets. These assemblies should be installed before the input jumper or terminating jumper because they help lock the cabinets into position. Carefully align the jumper with the alignment pins on the cabinet.
Page 32 Installing a -48 Vdc Power Distribution System Figure 4-5 The Jumper Assemblies Power Switch (NT4G42CA Locking Latches and later) 100-pin Connectors 100-pin Connectors AC Connectors Horizontal Terminating Input Jumper Jumper Jumper Assembly Assembly Assembly Practice 450-1011-201...
Page 33 Installing a -48 Vdc Power Distribution System 25 Figure 4-6 Installing the Jumper Assemblies Alignment Pins Alignment Pins Practice 450-1011-201...
Page 34 Installing a -48 Vdc Power Distribution System Figure 4-7 Installing the Bottom Hingepin on the Jumper Assemblies Practice 450-1011-201...
Page 35: Installing The Terminating Jumper Assembly
Installing a -48 Vdc Power Distribution System 27 Push the jumper assembly onto the pins with firm but reasonable force. Ensure that the bus connectors make contact with the cabinet connecter and that the jumper assembly fits snugly against the cabinet. Make sure that neither of the locking latches slips between the cabinet and the edge of the jumper assembly.
Page 36 Installing a -48 Vdc Power Distribution System Figure 4-8 Connecting the ac Power Cord to the Input Jumper ON/OFF Switch (NT4G42CA and later versions) AC Power Cable Receptacle AC Power Cable Cabinet (Rear View) Practice 450-1011-201...
Page 37: Installing The Rear Doors And Fan Covers For The Cabinets
Installing a -48 Vdc Power Distribution System 29 Installing the Rear Doors and Fan Covers for the Cabinets Once the cabinets and jumper assemblies have been installed, you can install the rear doors and fan covers. There should be one door and one fan cover for each cabinet.
Page 38 Installing a -48 Vdc Power Distribution System Set the bottom of the rear door onto the bottom hingepin, which is fixed on the bottom left side of the left-most jumper assembly, as viewed from the rear. Figure 4-9 Assembling the Fan Cover and Rear Door Fan Units Practice 450-1011-201...
Page 39 Installing a -48 Vdc Power Distribution System 31 Figure 4-10 Installing the Rear Door and Fan Cover Press Down and Inward Push In Tilt the rear door outward at the top on a 45-degree slant without disengaging it from the bottom hingepin as shown in Fig. 4-10. Similarly tilt the bottom of the fan cover outward on a 45-degree slant so that the hingepin hole on the bottom of the fan cover is positioned at the top hingepin in the cabinet door.
Page 40: Adding A Cabinet To An Existing System
Installing a -48 Vdc Power Distribution System Maneuver both the fan cover and rear door so that the top hingepin is inserted into the hingepin hole in the bottom of the fan cover. Push in on the fan cover and the top of the door at the same time until they are vertically straight.
Page 41 Installing a -48 Vdc Power Distribution System 33 Unsnap the locking latches that secure the terminating jumper assembly to the cabinet. (See Figures 4-5 and 4-6.) Grip the jumper assembly at the top with one hand and at the bottom with the other.
Page 42 Installing a -48 Vdc Power Distribution System • Install the shared resource units (SRUs) in their preassigned positions according to Part 6, ‘Installing/Removing the Shared Resource Units’. For information on the SRU position assignments, see the cabinet provisioning worksheets in the Site Records, 450-1011-152.
Page 43: Setting The Nt4G19Ea Power Supply For 115 Or 220 Vac Operation
5. Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation The system uses a 115 or 220 Vac commercial outlet as its power source, depending on the number of cabinets. The power supplies shipped with NSR26 and later systems adjust automatically for operation with either 115 or 220 Vac, according to the power supply they receive.
Page 44: Setting The Voltage Option On The Power Supply Sru
2 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation Setting the Voltage Option on the Power Supply SRU This procedure is used to set the voltage selector switch of the Power Supply SRU. (1) If the Power Supply SRU is already installed, remove it according to the procedure ‘Removing the SRUs from the Cabinets’, in Part 6.
Page 45 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation 3 Figure 5-1 Removing the Faceplate from the NT4G19EA Power Supply SRU Top Latch Screws Bezel Screws Bottom Latch Front Panel Power Supply SRU Practice 450-1011-201...
Page 46 4 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation Figure 5-2 Setting the Voltage Option on the NT4G19EA Power Supply SRU 220 VAC Connector 115 VAC Connector Side Panel Practice 450-1011-201...
Page 47: Installing/Removing The Shared Resource Units
6. Installing/Removing the Shared Resource Units This procedure explains how to install shared resource units (SRUs). It assumes that the SRUs have been inspected for damage according to the procedure ‘Unpacking the Shared Resource Units’, in Part 3, and also that the cabinets have been installed but not yet powered up.
Page 48: Installing The Loft Power Supply
6 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation Figure 6-1 The Four SRU Sizes 1/4 Shelf SRU 1/2 Shelf SRU 3/4 Shelf SRU Full Shelf SRU (Occupies 2 slots) (Occupies 4 slots) (Occupies 6 slots) (Occupies 8 slots) Installing the Loft Power Supply The Loft Power Supply is installed in the air plenum of the cabinet (NT4G13FA or later).
Page 49 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation 7 Figure 6-2 Installing the Loft Power Supply Power-On LED Practice 450-1011-201...
Page 50: Installing The Capacitor Interlocks (Nt4G19Ea Power Supply)
8 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation Installing the Capacitor Interlocks (NT4G19EA Power Supply) Each NT4G19EA Power Supply SRU in the system requires a capacitor interlock, which prevents current buildup and thereby protects against shock. The system will not operate if the interlocks are not installed.
Page 51 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation 9 Figure 6-3 Fastening the Capacitor Interlock to the Cabinet Frame Rear View Practice 450-1011-201...
Page 52: Installing The Srus
10 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation Installing the SRUs SRUs are installed in preassigned shelf positions in the cabinets. The configuration for your system installation has been recorded during configuration planning and has been entered in the Site Records, 450-1011-152. If you do not have the appropriate worksheets, see the system administrator.
Page 53 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation 11 Note: For SRUs equipped with an adapter cable at the rear, the cable must clear the rear backpanel window as the unit is being inserted into the shelf. Figure 6-4 Opening the SRU Latches Push Inward...
Page 54 12 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation Note: The filler plates are attached in segments. Break off as many segments as are required to fill the open space. The filler plates simply snap into the cutout window.
Page 55: Installing And Removing The Emi Covers
Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation 13 Installing and Removing the EMI Covers Each cabinet includes eight SRU shelf positions. Each shelf position has two connectors, which are both covered for EMI protection when an SRU is installed in the shelf position.
Page 56 14 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation Figure 6-5 Installing the Plastic Air Flow Slot Covers Rear View Practice 450-1011-201...
Page 57 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation 15 Figure 6-6 Installing the EMI Covers View of Backplane from Front of Cabinet Practice 450-1011-201...
Page 58: Installing The Analog Line Cards
16 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation Installing the Analog Line Cards When the Analog Link SRU has been installed in the cabinet, install the line cards in the pull-out drawer as follows: (1) With a 1/4-inch nutdriver, remove the nuts at the top of the drawer cover. Gently slide the drawer out until it is fully extended as shown in Fig.
Page 59 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation 17 (4) Install the line and service cards in their assigned positions according to the configuration worksheets in the Site Records, 450-1011-152. Use the following guidelines: • The line and service cards are identified by their part numbers on the solder side of the printed circuit board as follows: , NT4G29AH CO Line card NT4G29AJ E&M Line card...
Page 60: Removing An Sru From A Cabinet
18 Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation (5) If the the line card locations are not already recorded in the Analog Link SRU Drawer Map of the Site Records, 450-1011-152, write down the information now and put it into the Site Records. Note: Card location information is used to configure the lines within the system during software installation.
Page 61: Restarting The System After The Removal Of An Sru
Setting the NT4G19EA Power Supply for 115 or 220 Vac Operation 19 (8) Firmly grasp the top and bottom of the SRU and remove the unit from the shelf. Do not touch the rear connectors. - WARNING - Mass Storage SRUs are very heavy for their size. The 350 Megabyte SRU is especially heavy.
Page 62: Installing The Cross-Connect Panel
This row is removable. The building wiring is terminated at telephone jacks (typically RJ11C or RJ14C jacks that serve Meridian M4000 terminals, LAN Interface Units, and personal computers with PC LANlink cards. BIX is a trademark of Northern Telecom. Practice 450-1011-201...
Page 63 2 Installing the Cross-Connect Panel For central office and PBX connections, cross-connections are made to other distribution panels. Typically, an RJ21X panel is used as a main distribution frame (MDF) for central office connections. There may also be intermediate distribution frames (IDFs) for distribution within the office building.
Page 64 Installing the Cross-Connect Panel 3 Figure 7-1 Building Wiring and Equipment Layout 25-Pair LANlink Cables 3-Pair Cables 914 mm (36 in.) max. (24 Gauge) RJ11 Wall Jack 2-Pair Jumper Wires M4000 To Host Computers, ASCII Terminals, Modems, Printers, etc. MDF or IDF (Universal BIX-PAC Cross-Connect Panel in Blue Field or 66-type, such as NE66QAB) (optional)
Page 65 4 Installing the Cross-Connect Panel Figure 7-2 The Office Cross-connect Panel and Its Internal Wiring 25-Pair (50-pin) Connectors RowA RowB RowC Trunks LANlinks Analog Links 48 individual Meridian DV-1 wires BIX Connectors (Row1) Designation Strip & Label BIX Connectors (Rows 7 and 8) BIX Connectors (Row 9) Teladapt Jacks (internally connected to Row 9)
Page 66: Unpacking The Office Cross-Connect Panel
Installing the Cross-Connect Panel 5 Unpacking the Office Cross-connect Panel The office cross-connect panel is shipped with a plastic cabinet and a packet of mounting screws. If the panel has not been installed prior to installation day, proceed as follows: (1) Locate the shipping carton containing the panel, and move it to its intended installation location.
Page 67 6 Installing the Cross-Connect Panel (2) Before mounting the cross-connect panel, use a measuring tape and pencil to mark the vertical and horizontal lines on the wall as follows: • Mark a vertical line approximately 200 mm (8 inches) from the left-hand side wall or from other equipment.
Page 68 Installing the Cross-Connect Panel 7 Figure 7-4 Mounting the Cross-connect Panel Snap-on Latches Side Plates (Removeable) Distributor Secured by Self-tapping Screws Two Screws 450-0065 Pivot Hooks 4 Key Hole Slots (for Wall Mounting) Practice 450-1011-201...
Page 70: Connecting/Disconnecting The Cables At The Cabinets
Mass Storage SRU, and, optionally, the 350 Megabyte Mass Storage SRU • direct cabling connections from RS-232-C devices to the Primary Processor or Applications Processors (to be used with Northern Telecom's authorization only) • cabling connections to the office cross-connect panel from the interface SRUs (for example, the LANlink and Analog Link SRUs) •...
Page 71 10 Installing the Cross-Connect Panel Figure 8-1 Cabling from the System to External Equipment 4 RowA RowB RowC Trunks LANlinks Analog Links Meridian DV-i Cabinet 3 Cabinet 2 Cabinet 1 CO/PBX SASI Cable (Primary Processor to 80 Megabyte Mass Storage SRU) Cables to LANlink SRUs...
Page 72 Installing the Cross-Connect Panel 11 - WARNING - All cabling should be routed and secured according to local building and safety codes. Other cabling considerations are described in the Installation Planning Guide, 450-1011-200. APPARATUS cable per SCSI interface, maximum 6 m (18 ft) total SCSI bus: •...
Page 73: Cabling For A Scsi Cluster
12 Installing the Cross-Connect Panel TOOLS: Small flat-blade screwdriver Nutdriver (3/16 inches) Wire-wrap tool. Cabling for a SCSI Cluster A SCSI cluster is a group of devices (maximum 8) connected to a SCSI bus. Each SCSI cluster supports a SCSI file system. A DNC can contain one or more SCSI clusters.
Page 74 Installing the Cross-Connect Panel 13 Figure 8-2 A Typical Cabling Layout for a SCSI File System Cutout on Metal Backplane Cover Cabinet 2 ......
Page 75 14 Installing the Cross-Connect Panel (3) Push one end of the SCSI cable onto the 50-pin connector at the upper left of the rear panel of the Primary Processor or the File Processor, as viewed from the rear. The connector is keyed so that it connects only one way. (4) Tighten the two screws on the connector with a flat-blade screwdriver.
Page 76: Cabling For Systems Using Sasi Connections
Installing the Cross-Connect Panel 15 Cabling for Systems Using SASI Connections There are two cabling layouts for SASI systems. One, the usual configuration, involves only the Primary Processor and the 80 Megabyte Mass Storage SRU. The second layout is used when the system includes the optional 350 Megabyte Mass Storage SRU.
Page 77 16 Installing the Cross-Connect Panel Figure 8-3 Cabling and Layout for Installing the 80 Mbyte Storage SRU Cutout on Metal Backplane Cover Cabinet 2 ......
Page 78 Installing the Cross-Connect Panel 17 Figure 8-4 Cabling and Layout for Installing the 350 Mbyte Storage SRU 80 Megabyte Cutout on Metal Mass Storage SRU Backplane Cover Cabinet 3 Cabinet 2 ....
Page 79: Sasi Cabling For The 350 Megabyte Mass Storage Sru
18 Installing the Cross-Connect Panel (7) Push one end of the SASI cable onto the 50-pin connector at the rear of the 80 Megabyte Mass Storage SRU. The connector is keyed so that it connects only one way. (8) Tighten the two screws on the connector with a flat-blade screwdriver. (9) Route the cable down the rear of the cabinet, out beneath the door and into the cabinet housing the 350 Mbyte Mass Storage SRU.
Page 80: Direct Rs-232-C Connections
NT4G46EB cable adapter. Note: You should make this type of connection only if you have authorization from Northern Telecom. To connect an RS-232-C device to a rear panel port, proceed as follows: (1) Locate the RS-232-C cable and connect one end of it to the RS-232-C device.
Page 81 20 Installing the Cross-Connect Panel Figure 8-5 Direct RS-232-C Connections to the Primary Processor Cutout on Metal Backplane Cover ......To: A Modem .
Page 82: Lanlink Connections To The Cross-Connect Panel
Installing the Cross-Connect Panel 21 LANlink Connections to the Cross-connect Panel The LANlink SRU is equipped with a rear connector that cables the LANlink to one of the connectors at the top of the office cross-connect panel. This procedure assumes that the panel has already been installed. If not, ensure that it is installed according to Part 7.
Page 83 22 Installing the Cross-Connect Panel Table 8-A COLOR CODES FOR THE LANLINK CABLES PAIR No. COLOR CODE White/Blue White/Orange White/Green White/Brown White/Slate Red/Blue Red/Orange Red/Green Red/Brown Red/Slate Black/Blue Black/Orange Black/Green Black/Brown Black/Slate Yellow/Blue Yellow/Orange Yellow/Green Yellow/Brown Yellow/Slate Yellow/Blue Yellow/Orange Yellow/Green Yellow/Brown Yellow/Slate Practice 450-1011-201...
Page 84 Installing the Cross-Connect Panel 23 Figure 8-6 LANlink to Office Cross-connect Panel Connections Cutout on Metal Backplane Cover RowA RowB RowC Trunks LANlinks Analog Links Meridian DV-1 ........
Page 85: Digital Trunk Link Connections To The Cross-Connect Panel
24 Installing the Cross-Connect Panel Digital Trunk Link Connections to the Cross-connect Panel The Digital Trunk Link SRU is equipped with a rear connector that cables the SRU to a DS1-compatible terminating or repeating device up to 228.6 m (750 ft) away. This procedure assumes that the DS1-compatible device has already been installed and that transmission limits have been appropriately engineered.
Page 86 Installing the Cross-Connect Panel 25 DT0 (Transmit) Frame Ground (cable shield) see note DT1 (Receive) Frame Ground (cable shield) see note no connection no connection no connection no connection DR0 (Transmit) no connection DR1 (Receive) no connection no connection no connection no connection Note: Frame Grounds are only terminated at the network end.
Page 87 26 Installing the Cross-Connect Panel Figure 8-7 Digital Trunk Link to DS1 Terminating Device Connections Cutout on Metal Backplane Cover To: DS1 Carrier System ........
Page 88 Installing the Cross-Connect Panel 27 Figure 8-8 The Digital Trunk Link SRU ..... . 8 DIP Switches ..
Page 89: Analog Link Connections To The Cross-Connect Panel
28 Installing the Cross-Connect Panel Analog Link Connections to the Cross-connect Panel The Analog link SRU is equipped with three rear connectors that cable the SRU to the connectors at the top of the office cross-connect panel. Each connector connects one row of line cards in the SRU to the cross-connect panel.
Page 90 Installing the Cross-Connect Panel 29 (6) Route the cables down the left side of the cabinet, as viewed from the rear, and out the space below the rear door. Tie-wrap the cable to the cabinet frame for dressage. (7) Route the cable along the floor at the rear of the cabinet, then to the office cross-connect panel according to the floor plan.
Page 91 30 Installing the Cross-Connect Panel Figure 8-10 Analog Link to Cross-connect Panel Connections Cutout on Metal Backplane Cover 4 RowA RowB RowC Trunks LANlinks Analog Links Meridian DV-1 Row A Row B Row C Analog Link SRU ..
Page 92 Installing the Cross-Connect Panel 31 Figure 8-11 Internal BIX Wiring from Connectors A, B and C to Rows A, B and C ANALOG LINK SRU Rear Connectors Pull-Out Drawer To Office Cross-Connect Panel (BIX Connectors) Line Card Slots Line Card Slots Line Card Slots One Peripheral Interface (PIF) card occupies 3 slots Three -48 V Power Converter cards...
Page 93 32 Installing the Cross-Connect Panel Figure 8-12 Internal Cross-connections from an External Trunk to Analog Lines From Analog Link SRU To PBX or CO (Three 25-pair cables) Trunk Interface 25-pair cables terminate OFFICE CROSS-CONNECT PANEL on 25-pair connectors (BIX Connectors) TRKS Internal wiring between 25-pair connectors and BIX punching blocks.
Page 94: Cross-Connections To Distribution Frames And Building
9. Cross-connections to Distribution Frames and Building Wiring cross-connections should be in place, having been installed by the pre-installation wiring contracter prior to the installation of the system. However, if the connections have not been made, or if updates are required, proceed according to the instructions in this part.
Page 95 88 Cross-Connections to Distribution Frames and Building Table 9-A Wiring Table and Color Coding for LANlink Cables Each LANlink connection consists of four leads: Tip and Ring for transmit and Tip/Ring for receive. Use the color codes and table below to connect the individual wires of the 25-pair LANlink cable to the distribution frame.
Page 96: How To Use The Qtbix16A Connection Tool
Cross-Connections to Distribution Frames and Building 89 How to Use the QTBIX16A Connection Tool The QTBIX16A connection tool is used to make the physical connection of the building wiring leads that terminate on the BIX connectors of the office cross-connect panel. This is a special tool designed for making wire terminations at a BIX connector and is used as follows: - CAUTION - Handle the tool with care to avoid damaging it.
Page 97 90 Cross-Connections to Distribution Frames and Building (2) Hold the tool with the black cutting blade toward the wires to be cut off. (See Fig. 9-2.) (3) Insert the tool into the connector. Hold the tool at a right angle to, and level with, the connector.
Page 98: How To Terminate Building Wiring At The Cross-Connect Panel
Cross-Connections to Distribution Frames and Building 91 How to Terminate Building Wiring at the Cross-connect Panel It is assumed that the pre-installation wiring contractor has already installed all necessary building wiring and Teladapt jacks. The cross-connections should have been made from the panel to the building wiring at the same time. However, if this has not been done, proceed as follows: (1) To locate the station location codes for the wires to be connected, see the floor plan and the wiring log in the Site Records, 450-1011-152.
Page 99 92 Cross-Connections to Distribution Frames and Building Figure 9-4 Cross-connections to a Distribution Frame Cross-connect Panel RowA RowB RowC Trunks LANlinks Analog Links Meridian DV-1 LANlink BIX Connectors Station #1 LANlink Station #2 W-BL BL-W 450-0074 2-Pair Twisted Cross-connecting Wire BIX IDF (or 66-type) Practice 450-1011-201...
Page 100: Connecting The Meridian M4000 Terminals
10. Connecting the Meridian M4000 Terminals This procedure is used to connect Meridian M4000-series Terminals to the system. It assumes that the building wiring is in place, and assigned cross-connections are made at the office cross-connect panel and any other distribution frames between the terminal and system.
Page 101 94 Connecting the Meridian M4000 Terminals (5) If the terminal has not already been connected to a commercial ac source, plug it in. The terminal will power up. It may take a few seconds for the display to come on. Note: The system administrator enters the appropriate set-up information in System Administrative Services (SAS).
Page 102 Connecting the Meridian M4000 Terminals 95 Figure 10-2 Connectors On the Rear of the M4000-Series Terminal Centronics Port for Printer Attachment M4000-Series Terminal, Rear View To 115 V ac TELADAPT Connector Power Source to LANLink SRU (by way of BIX Connector Block) Practice 450-1011-201...
Page 103: Connecting The Headset Accoustic Limiter
96 Connecting the Meridian M4000 Terminals Figure 10-3 Connecting the M4000 Keyboard to the Terminal Keyboard (bottom view) Use Coiled Cord to Connect TELADAPT Jack of Terminal to Keyboard. M4000-Series Terminal (bottom view) 450-0086 Connecting the Headset Accoustic Limiter In central-office applications that use the Meridian M4020 for voice services, an accoustic limiter is available for headsets.
Page 104 Connecting the Meridian M4000 Terminals 97 Figure 10-4 Connecting the Headset Accoustic Limiter to the M4020 Headset NT2B36 M4020 RJ14C Jack Box Transmit Line Pair NT4X7210 Receiver Output Port #1 Optimization Receive Input Circuit Output Port #2 (ROC) 18 to 75 VDC (-48V) (C.O.) 450-0520 Notes: A jumper may be added between pins 2 and 4 to provide a fixed 6 dB gain.
Page 106: Connecting The Lan Interface Units To The System
11. Connecting the LAN Interface Units to the System This procedure is used to connect LAN Interface Units (LIUs) to the system. It assumes that the building wiring is in place, and that assigned cross connections are made at the office cross-connect panel and any other distribution frames between the terminal and system.
Page 107: Installing The Lan Interface Unit
100 Connecting the LAN Interface Units to the System Figure 11-1 The LAN Interface Unit (with Line Card Option Board with Eight RS-232-C Ports) 8 LIU Ports (on the Optional LCO Board) Port 3 Parallel Connector Port 2 RS-232-C Connector Port 1 RS-232-C Connector RJ11 Jack Power Indicator...
Page 108 Connecting the LAN Interface Units to the System 101 Figure 11-2 Mounting an LIU on a Wall Backboard on Wall Wood Screw Wall Mounting Bracket RS-232 and Parallel Connectors Practice 450-1011-201...
Page 109: Connecting An Liu To The System
102 Connecting the LAN Interface Units to the System Connecting an LIU to the System To connect an LIU directly to the cross-connect panel, proceed as follows: (1) Locate the six-conductor Teladapt cord shipped with the LIU. (2) Plug one end of the cord into the assigned Teladapt jack. This may be a jack on the office cross-connect panel, or one connected to the building wiring.
Page 110: Connecting Peripherals, Hosts, And Modems To The Liu
12. Connecting Peripherals, Hosts, and Modems to the LIU The LAN Interface Unit (LIU) is equipped with ports for connection to external devices such as ASCII terminals, printers, host computers, and modems. The basic LIU is equipped with two 25-pin RS-232-C ports and one parallel Centronics-type port.
Page 111: Connecting A Modem To An Liu
104 Connecting Peripherals, Hosts, and Modems to the LIU Connecting a Modem to an LIU Modems are used to connect the LIU to peripheral devices, networks, or host computers. Modems may be installed individually or in pools according to the manufacturer's documentation.
Page 112 Connecting Peripherals, Hosts, and Modems to the LIU 105 to the terminal manufacturer's documentation for a description of the terminal's RS-232-C port. (2) Run the RS-232-C cable from the terminal to the LIU (or modem, for remote connections) according to the floor plan and wiring drawings. - WARNING - All wiring and cabling should be routed and secured according to local building and safety codes.
Page 113: Connecting A Serial Printer To An Liu
106 Connecting Peripherals, Hosts, and Modems to the LIU Connecting a Serial Printer to an LIU A printer connects to the system via either an asynchronous RS-232-C port in the LIU, or via the LIU's parallel Centronics port. The printer itself should be installed according to the manufacturer's instructions.
Page 114: Connecting A Nine-Track Magnetic Tape Unit To An Liu (Sasi Version)
Connecting Peripherals, Hosts, and Modems to the LIU 107 want to refer to the manufacturer's documentation for a description of the RS-232-C port. (2) Run the RS-232-C cable from the host to the LIU (or modem, for remote connections) according to the floor plan and wiring drawings. - WARNING - All wiring and cabling should be routed and secured according to local building and safety codes.
Page 115 108 Connecting Peripherals, Hosts, and Modems to the LIU • connect the LIU to the tape unit • connect the LIU's Teladapt connector to the cross-connect panel. The procedure assumes that the wiring between the LANlink SRU and the cross-connect panel is in place, and that the appropriate cross-connections have been made.
Page 116 Connecting Peripherals, Hosts, and Modems to the LIU 109 (11) Activate both power sources. On the tape unit, the LOGIC OFF LED should light; at the same time, on the LIU, the power LED should light. (12) Close the tape unit cabinet front door, and press to latch. (13) Power up the tape unit and LIU.
Page 117 110 Connecting Peripherals, Hosts, and Modems to the LIU Figure 12-5 Nine-track Magnetic Tape Drive (SASI Version) Location of Circuit Breaker (under cover, 0=off, 1=on) Top View Tape Drive Reel Holder (under top cover) 915 mm (36 in.) Take-Up Reel (fixed) Top Door (opens upward) Window...
Page 118 Connecting Peripherals, Hosts, and Modems to the LIU 111 Figure 12-6 Tape Unit and LIU Connections Tape Drive Tape Interface Connectors Inside of Tape Drive Cabinet, With Front Door Open Tape Interface Circuit Board Cable Connectors Cable Collars LIU Connectors Access Slot Bottom Panel of Tape Drive Cabinet 450-0095...
Page 120: 13. Using The Cartridge Tape Drive
13. Using the Cartridge Tape Drive Each DNC system is equipped with one or more SRUs with slots for cartridge tapes. Cartridge tapes are used to load new software releases, perform backups of programs and data, and restore programs and data in the event of equipment failures.
Page 121: Cleaning The Tape Heads
114 Loading/Removing the Tape Cartridge (Cartridge SRU) Figure 3-1 Tape Head Location in the Mass Storage or Cartridge Tape SRU Tape Slot Erase Head Select Read/Write Head Fault Direction of Cleaning Motion Cleaning the Tape Heads Tools: • denatured (isopropyl) alcohol •...
Page 122 Loading/Removing the Tape Cartridge (Cartridge SRU) 115 Figure 13-2 Tape Head Location in the 1/4-shelf Disk/Tape SRU Push this knob down to clean the tape heads The read/write heads are located behind this knob, close to the back of the slot. They are exposed slightly (for cleaning) when this knob is pushed down.
Page 123: Inserting The Tape Cartridge Into The Mass Storage Or Cartridge Tape Sru
116 Loading/Removing the Tape Cartridge (Cartridge SRU) Inserting the Tape Cartridge into the Mass Storage or Cartridge Tape Load the tape cartridge into the slot as follows: (1) Set the SAFE pointer on the tape as required: • If you are downloading data from the system hard disk to tape, set the pointer away from SAFE.
Page 124: Inserting The Tape Cartridge Into The 1/4-Shelf Disk/Tape Sru
Loading/Removing the Tape Cartridge (Cartridge SRU) 117 Inserting the Tape Cartridge into the 1/4-shelf Disk/Tape SRU Load the tape cartridge into the slot as follows: (1) Set the SAFE pointer on the tape as required: • If you are downloading data from the system hard disk to tape, set the pointer away from SAFE.
Page 125: Removing A Tape
118 Loading/Removing the Tape Cartridge (Cartridge SRU) Figure 13-4 Inserting the Tape Cartridge into the 1/4-shelf Disk/Tape SRU SRU Name Label Stationary Knob Keyed slot Metal Side Push this knob down to lock the cartridge, up to unlock it. Cartridge Tape Removing a Tape After use, remove the tape from the SRU as follows: (1) There are two kinds of mechanisms for releasing the tape:...
Page 126: Retensioning A Tape
Loading/Removing the Tape Cartridge (Cartridge SRU) 119 Retensioning a Tape If you are the superuser, you can retension a tape. (Only the superuser can access the Utilities Services _ Main Menu, as required by this procedure.) Retensioning consists of spooling the tape end-to-end and back, and requires an installed system. Note: Retension new tapes three times prior to use;...
Page 128: 14. Powering Up The System
14. Powering Up the System The system should not be powered up until the appropriate point in the initialization procedure (which is documented in the Guide to DNC Base Software Installation, 450-1011-302). However, should an installed system require reinitialization, use the procedure below.
Page 129 122 Powering Up the System Figure 14-1 The ac Power Input Cable ON/OFF Switch (NT4G42CA and later versions) AC Power Cable Receptacle AC Power Cable Cabinet (Rear View) Practice 450-1011-201...
Page 130: 15. Installing The Alarm System
Installing the Alarm System 123 15. Installing the Alarm System This part describes how to install the Alarm System in the system. The Alarm System is based on an Alarm Interface Unit (ALIU), which is an option board that can be installed in the LAN Interface Unit. One ALIU is required for each site. The ALIU monitors the system for hardware and software failures.
Page 131 124 Installing the Alarm System The procedure assumes that the LIU has not yet been installed. If it has, the cover can still be removed should you need to change the options. Proceed as follows: - WARNING - All wiring and cabling should be routed and secured according to local building and safety codes.
Page 132 For Future Use (25-pin) Customer Alarms (CO/PBX) RS-232-C Port 3 Parallel Connector Port 2 RS-232-C Connector RJ11 Jack Power Indicator Port 1 RS-232-C Connector Teladapt Cable Centronics RS-232-C Printer Interface DNC Cabinets Modem Printer 450-0098 25-pin 36-pin...
Page 133 126 Installing the Alarm System Figure 15-2 Front Panel of an LIU Equipped with an ALIU Connector to the Frame RS-232 -C Port for Supervisory Panel of Bay Connecting to the DB37 Connector for Systems (reserved for future LIU Port Assigned to use with cabinet systems) Customer Alarms the Alarm System...
Page 134 Installing the Alarm System 127 Table 15-A Continued Pin Assignments for the Customer Interface Connector (P4) An open circuit between the + and - pins signifies that there is no alarm present (ALARM • INACTIVE). Maximum voltage across the relay is 110 V (relay open). Caution: These relays are intended for use with dc power only, and cannot be used with ac.
Page 135 128 Installing the Alarm System Table 15-A Continued Pin Assignments for the Customer Interface Connector (P4) SIGNAL FUNCTIONAL NAME DESCRIPTION +REMACO Remote ACO input -REMACO +AUXIN1 Auxiliary input 1 (cabinets only) -AUXIN1 +AUXIN2 Auxiliary input 2 (cabinets only) -AUXIN2 +AUXIN3 Auxiliary input 3 (cabinets only) -AUXIN3 OTHER CONNECTIONS...
Page 136 Installing the Alarm System 129 Table 15-B ALIU Options Settings The default settings are the Pin1 to Pin2 connections in all cases up to J20, except for J3 and J10/J16. J11 and J12 (Opto-coupler Input Voltage Options) are only used for systems with a 24 Vdc source or reference the Battery Return on P2 and P4 of J11.
Page 137 130 Installing the Alarm System Table 15-B Continued ALIU Options Settings JUMPER STRAPPING OPTION FUNCTION OPTO-COUPLER INPUT VOLTAGE OPTIONS J11: A1,B1 BR common to P2 and P4 out (default) P2 BR and P4 BR isolated J11: A2,B2 24 Vdc operation selected out (default) 48 Vdc operation selected J11: A3,B3...
Page 138 Installing the Alarm System 131 Table 15-B Continued ALIU Options Settings JUMPER STRAPPING OPTION FUNCTION ALARM OUTPUT OPTIONS Pin 3 to Pin 2 (default) Auxiliary 2 relay contact closure Pin 1 to Pin 2 Auxiliary 2 relay contact opening Pin 3 to Pin 2 (default) Auxiliary 1 relay contact closure Pin 1 to Pin 2 Auxiliary 1 relay contact opening...
Page 140: 16. How To Connectorize Cables
Installing the Alarm System 133 16. How to Connectorize Cables This procedure describes how to connectorize cables of various sizes and types, when the preset lengths of cable are not appropriate. There are two types of cable connectorization described here, each requiring its own tool: •...
Page 141 134 How to Connectorize Cables (2) Butt and strip the cable sheath approximately 221 mm (8 inches) from the cable end to be terminated. (3) Depending on the size of the cable (number of pairs) and the number of connectors being terminated, organize the wires according to a suitable plan. Split the wire binders and sort the pairs as required for each connector.
Page 142: Connectorization Of Ds1 Cables (Certi-Crimp)
How to Connectorize Cables 135 (11) Insert the connector into the block holder between the shear plates, and turn the torque screw until slippage occurs (indicating the correct torque). (12) Pull the group of wires forward. Select the first pair of wires that corresponds with the color bar guide, starting from the center of the tool.
Page 143 136 How to Connectorize Cables A for designation of the tool parts.) All the leads are crimped with pins first, and then inserted into the 15-pin DTL connector (AMP 205205). Proceed as follows: (1) Prepare the cable end by stripping off the sheath approximately 50 mm (2 inches).
Page 144 How to Connectorize Cables 137 Figure 16-2 AMP CHAMP T-Handle Insertion Tool, 229384-1 For Inserting Single Wires Into Connectors Apply Approx. 15-lb. Pressure End of Wire Placement Wire Blade Cross Section of Connector Block Mating End Wire Termination of Contact End of Contacts Block or Suitable...
Page 145 138 How to Connectorize Cables Figure 16-3 CERTI-CRIMP Tool, AMP 90312-1 For Terminating 15-Pin DTL SRU Connectors Contact Locator Front of Tool Anvil Crimper Jaws Jaws View A Ratchet Cushioned Hand Grips Crimper Locator Jaws Anvil Blue Jaws 28 - 24 24 - 20 Crimp Section Wire Size...
Page 146 How to Connectorize Cables 139 (6) Insert a female socket pin into the 20/24 crimp slot; the V-shape opening of the crimping barrel of the pin should face toward the groove of the crimper jaws, as shown in Fig. 16-3, View B. Note: The color dot on the pin must be red to match the color of the 20/24 crimp slot designation on the tool.
Page 147 140 How to Connectorize Cables Table 16-A PIN DESIGNATIONS FOR DS1 CABLES DESIGNATION DT0 (transmit) Frame ground (cable shield) DT1 (receive) Frame ground (cable shield) DR0 (transmit) DR1 (receive) Note: Of pins 1 to 15, only those used are listed. All others are no connection. Practice 450-1011-201...
Page 148: Installing A -48 Vdc Power Distribution System
Installing a Factory-configured -48 V Power System This procedure describes how to install a -48 Vdc Power Distribution System on cabinet systems. The ordering codes provided for Northern Telecom products reflect the most recent versions at the time of printing.
Page 149 142 Installing a -48 Vdc Power Distribution System (6) Place the dc serial ID label over the ac serial ID label (which gives the voltage rating, frequency, model number, and so on) located on the input jumper. (7) Remove the ac input jumper from the rear of cabinet 1 (the right-most cabinet as viewed from the rear).
Page 150 Installing a -48 Vdc Power Distribution System 143 The system is now ready to have the power and grounding cables connected. - CAUTION - Power and grounding connections must be made by qualified personnel in accordance with local electrical codes and the applicable portions of the National Electrical Code/Canadian Electrical Code.
Page 151 144 Installing a -48 Vdc Power Distribution System Figure 17-1 Installation of Factory-configured System (2 to 4 Cabinets) Cabinet numbers Dist. Input Two-cabinet Configuration Cabinet numbers Dist. Input Three-cabinet Configuration Cabinet Numbers Dist. Input Four-cabinet Configuration 450-0503 Cable Supplied with Distribution Box -48 Vdc Cable Power # 2 Internal Cable and Conduit (Provided with Input Box) -48 Vdc Cable Power Jumper...
Page 152 Installing a -48 Vdc Power Distribution System 145 Figure 17-2 Installation of Factory-configured System (5 to 8 Cabinets) Cabinet numbers Dist. Dist. Input Five-cabinet Configuration Cabinet numbers Dist. Dist. Input Six-cabinet Configuration Cabinet numbers Dist. Dist. Input Seven-cabinet Configuration Cabinet numbers Dist.
Page 153 146 Installing a -48 Vdc Power Distribution System Figure 17-3 Securing the Connector Backshell Housing to the Rear of the Cabinet Cabinet Rear Panel Converter SRU (Inside Cabinet) Connector Backshell Practice 450-1011-201...
Page 154 Installing a -48 Vdc Power Distribution System 147 Figure 17-4 Field Wiring Instructions FIELD WIRING INSTRUCTIONS -48 VOLT DC SUPPLIED DATA VOICE INSTRUCTIONS This System has been designed to comply with the requirements for Field Wiring of stationary units in accordance with the 1987 National Electrical Code, NFPA 70 or the Canadian Electrical Code C22.1.
Page 155 148 Installing a -48 Vdc Power Distribution System Figure 17-5 Bus Bar Positions and Wire Coding White 450-0507 Red: Red wire carrying -48 V Black: Black wire carrying -48 V Return White: White wire carrying converter balance signal Not Shown: Green wire carrying system ground Table 17-A CONVERTER REQUIREMENTS...
Page 156 Installing a -48 Vdc Power Distribution System 149 Table 17-B HARDWARE REQUIREMENTS FOR A POWER SYSTEM UPGRADE This table lists the hardware required to expand a -48 V Power Distribution System (from two cabinets to up to eight cabinets). CHANGE CHANGE HARDWARE REQUIRED FROM...
Page 157: Installing The Cabinet Downgrade Kit (Nt4G13At)
150 Installing a -48 Vdc Power Distribution System Installing the Cabinet Downgrade Kit (NT4G13AT) This procedure describes how to install the cabinet downgrade kit NT4G13AT, which reduces the number of cabinets served by the power system. The kit consists of labels that are to be placed over the dc serial ID label that is located on the input jumper to change the amperage rating.
Page 158 Installing a -48 Vdc Power Distribution System 151 (17) Remove the two screws securing the distribution box to the rear panel of cabinet 8. (18) Remove the two nuts securing the distribution box to cabinet 8. (19) Remove the distribution box from cabinet 8. (20) Attach power cable #2 (removed from cabinet 8) to the power converter in cabinet 6.
Page 159: Downgrade From Seven To Six Cabinets
152 Installing a -48 Vdc Power Distribution System Downgrade from Seven to Six Cabinets When downgrading from seven to six cabinets, see Fig. 17-2 for the locations of the input and distribution boxes, Fig.17-5 for the wiring for the bus bar, and proceed as follows: (1) Power down the -48 Vdc system by moving the circuit breaker located in the input box to the OFF position.
Page 160: Downgrade From Five To Four Cabinets
Installing a -48 Vdc Power Distribution System 153 (7) After removing the green wire from the stud, replace the washer and nut on the stud. (8) Remove the cable from the distribution box in cabinet 5. (9) Remove the strain relief from the distribution box. (10) Cover the hole in the distribution box with the snap-in hole cover supplied with the kit.
Page 161 154 Installing a -48 Vdc Power Distribution System (14) Detach the connector backshell from the power converter located in cabinet 4 by removing the two 1/2-inch screws holding the backshell to the rear panel of the cabinet. (15) Remove the horizontal jumper connecting cabinets 4 and 5, and the vertical jumper on cabinet 5.
Page 162: Downgrade From Four To Three Cabinets
Installing a -48 Vdc Power Distribution System 155 (27) Insert the stripped ends of the red, black, and white wires into the through holes of the bus bars. Ensure that all strands of each wire are in the hole and that each wire is in the correct bus bar.
Page 163: Downgrade From Three To Two Cabinets
156 Installing a -48 Vdc Power Distribution System Downgrade from Three to Two Cabinets When downgrading from three to two cabinets, see Fig. 17-1 for the locations of the input and distribution boxes, Fig.17-5 for the wiring for the bus bar, and proceed as follows: (1) Power down the -48 Vdc system by moving the circuit breaker located in the input box to the OFF position.
Page 164: Installing Upgrade Kit Nt4G13Av (From Three To Four Cabinets)
Installing a -48 Vdc Power Distribution System 157 (4) Lightly secure the connector backshell to the cabinet backpanel with two 1/2-inch screws. (5) Engage the power converter to ensure proper alignment. (6) Tighten the screws holding the backshell. (7) Remove one of the snap-in hole covers from the bottom of the distribution box located in cabinet 2.
Page 165 158 Installing a -48 Vdc Power Distribution System (1) Power down the -48 Vdc system by moving the circuit breaker located in the input box to the OFF position. (2) Remove the eight screws securing the front cover plate to the distribution box in cabinet 2.
Page 166: Installing Upgrade Kit Nt4G13Aw (From Four To Five Cabinets)
Installing a -48 Vdc Power Distribution System 159 Installing Upgrade Kit NT4G13AW (From Four to Five Cabinets) This procedure describes how to expand a -48 Vdc system from four to five cabinets. The kit consists of one cable (NT4G09CH A0331640) and a label. This procedure consists of removing one existing power cable #2 from the old distribution box (to be placed in cabinet 5), and connecting the existing distribution box (in cabinet 2) to the new distribution box with the new jumper cable.
Page 167 160 Installing a -48 Vdc Power Distribution System (14) Remove the horizontal jumpers connecting cabinets 4 and 5, and the vertical jumpers located on cabinet 5. (15) Remove the two nuts from the studs on the rear of cabinet 5. (16) Place the new distribution box on the studs on the rear of cabinet 5.
Page 168 Installing a -48 Vdc Power Distribution System 161 (33) Lightly secure the connector backshell to the cabinet backpanel with two 1/2-inch screws. (34) Engage the power converter to ensure proper alignment. (35) Fully tighten the screws holding the backshell. (36) Replace the front cover plate and secure with the eight screws removed previously.
Page 169: Installing Upgrade Kit Nt4G13Ax (From Five To Six Cabinets)
162 Installing a -48 Vdc Power Distribution System Installing Upgrade Kit NT4G13AX (From Five to Six Cabinets) This procedure describes how to expand a -48 Vdc system from five to six cabinets. The kit consists of one cable (NT4G09BH A0331639) and a label. This procedure consists of adding one cable to the distribution box in cabinet 5, and connecting the new cable to the power converter in cabinet 6.
Page 170: Installing Upgrade Kit Nt4G13Ay (From Six To Seven Cabinets)
Installing a -48 Vdc Power Distribution System 163 (14) Insert the stripped ends of the red, black, and white wires into the through holes of the bus bars. Ensure that all of the strands of each wire are in the hole and that each wire is in the correct bus bar.
Page 171 164 Installing a -48 Vdc Power Distribution System (9) Insert the cable end through the empty strain relief in the distribution box located in cabinet 5. Ensure that approximately 1/4-inch of cable jacket protrudes through the strain relief and into the box. (10) Securely tighten the clamping screws on the strain relief.
Page 172: Installing Upgrade Kit Nt4G13Az (From Seven To Eight Cabinets)
Installing a -48 Vdc Power Distribution System 165 Installing Upgrade Kit NT4G13AZ (From Seven to Eight Cabinets) This procedure describes how to expand a -48 Vdc system from seven to eight cabinets. The kit consists of one cable (NT4G09CH A0331640), one distribution box (NT4G13AH A0333762) and a label.
Page 173 166 Installing a -48 Vdc Power Distribution System (11) Insert the stripped ends of the red, black, and white wires into the through holes of the bus bars. Ensure that all of the strands of each wire are in the hole and that each wire is in the correct bus bar.
Page 174 Installing a -48 Vdc Power Distribution System 167 (28) Place the ring terminal from the green wire over the stud in the lower part of the distribution box. (29) Place the flat washer over the ring terminal, and secure with the nut removed previously.

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