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Nortel Meridian 1 Hardware Replacement Manual

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Meridian 1
Hardware Replacement
Document Number: 553-3001-520
Document Release: Standard 17.00
Date: January 2002
Year Publish FCC TM
Copyright © 1990– 2002 Nortel Networks
All Rights Reserved
Printed in Canada
Information is subject to change without notice. Nortel Networks reserves the right to make changes in design
or components as progress in engineering and manufacturing may warrant. This equipment has been tested
and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules, and the
radio interference regulations of Industry Canada. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user will be required to correct the
interference at their own expense.
SL-1 and Meridian 1 are trademarks of Nortel Networks. Intel and Pentium are trademarks of Intel Corporation.
cPCI is a trademark of PCI Industrial Computer Manufacturers Group.

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  • Page 1 SL-1 and Meridian 1 are trademarks of Nortel Networks. Intel and Pentium are trademarks of Intel Corporation. cPCI is a trademark of PCI Industrial Computer Manufacturers Group.
  • Page 3 Page 3 of 250 Revision history January 2002 Standard 17.00. This document is up-issued to support Meridian 1 Release 25.40 systems. This document is up-issued to include Call Processor Pentium (CP PII) and Fibre Network Fabric (FNF) for Option 81C.
  • Page 4 Standard 10.00. This document is reissued to include international information to create a global Nortel Networks technical publication (NTP), Meridian 1 Option 81C, and minor text edits. Changes to technical content are noted by revision bars in the margins. December 1994 Standard 9.0.
  • Page 5 Page 5 of 250 Contents About this document ..... . . Accessing the system ..... . . Hardware replacement guidelines .
  • Page 6 Page 6 of 250 Contents 553-3001-520 Standard 17.00 January 2002...
  • Page 7 (for example, all card locations, option switch settings, and cable connections are correct) and was fully operational before the hardware fault. To use this document, you should have a basic knowledge of Meridian 1 maintenance procedures. Generally, only common tools (such as socket wrenches, screwdrivers, and pliers) are required to perform these procedures.
  • Page 8 Page 8 of 250 About this document 553-3001-520 Standard 17.00 January 2002...
  • Page 9 Note: The Multi User Login feature, available with software Release 19 and later, allows more than one device to interact with the Meridian 1. Refer to System Management Applications (553-3001-301) for details on using this feature.
  • Page 10 Page 10 of 250 Accessing the system Access through the system terminal You can send maintenance commands and receive system messages by accessing the CPU through an RS-232 device, such as a video display terminal (VDT) or teletypewriter (TTY). When you access the system through a system terminal, a login procedure is required (see Procedure 1 on page 10).
  • Page 11 Accessing the system Page 11 of 250 The normal response is PASS? If there is any other response, see Administration (553-3001-311). Enter either the level 1 or level 2 password and press the return key. If the password is correct, the system responds with the prompt >. Load a program by entering LD xx “xx”...

  • Page 12: Space Or

    Page 12 of 250 Accessing the system Note: To use the maintenance telephone, the peripheral equipment loop for that telephone must be operating. Table 1 Translation from keyboard to telephone dial pad Keyboard Dial pad Space or # Return Note: There is no equivalent for Q or Z on a dial pad. 553-3001-520 Standard 17.00 January 2002...
  • Page 13 Accessing the system Page 13 of 250 Procedure 2 Access through the maintenance telephone Press the prime DN key. Place the set in maintenance mode by entering xxxx91 “xxxx” is the customer Special Prefix (SPRE) number. It is defined in the Customer Data Block and can be printed using LD 21.
  • Page 14 Page 14 of 250 Accessing the system 553-3001-520 Standard 17.00 January 2002...
  • Page 15 Options 51C, and 61C cable guidelines ......Precautions To avoid personal injury and equipment damage, review the following guidelines before handling Meridian 1 equipment. Power equipment There are no user-repairable components in the power system. If a power supply fails, the complete unit must be replaced.
  • Page 16 To avoid card damage from static discharge, wear a properly connected antistatic wrist strap when you work on Meridian 1 equipment. If a wrist strap is not available, regularly touch one of the bare metal strips in a module to discharge static.
  • Page 17 Hardware replacement guidelines Page 17 of 250 During replacement procedures: • Turn off the circuit breaker or switch for a module power supply before the power supply is removed or inserted. • In AC-powered systems, capacitors in the power supply must discharge. Wait five full minutes between turning off the circuit breaker and removing the power supply from the module.
  • Page 18 Page 18 of 250 Hardware replacement guidelines Options 51C, and 61C cable guidelines To disconnect a cable from the Core/Network Module backplane, use the P0741489 Extraction Tool provided in the rear of the module (behind the I/O safety panel). CAUTION Damage to Equipment You must use the P0741489 Extraction Tool to disconnect cables from the backplane shrouds in the...
  • Page 19 Hardware replacement guidelines Page 19 of 250 Before you connect cables to the backplane, visually inspect the backplane shroud connectors to make sure there are no bent pins. To connect cables: Orient the cable connector so the strain relief paddle is to the right. Partially insert the cable connector so its guides mate to the corresponding backplane connector.
  • Page 20 Page 20 of 250 Hardware replacement guidelines 553-3001-520 Standard 17.00 January 2002...

  • Page 21: Table Of Contents

    Page 21 of 250 Replacing equipment Content list The following are the topics in this section: Reference list ..........Removing module covers and pedestal grills .
  • Page 22 Page 22 of 250 Replacing equipment NT5D61 Input/Output Disk Unit with CD-ROM (IODU/C) ..Performing a data dump ........Splitting the Cores .

  • Page 23: Reference List

    Replacing equipment Page 23 of 250 NT8D53AD Power Distribution Unit ......NT8D53CA Power Distribution Unit AC ..... . . NT8D56AA, NT8D56AC, NT8D57 Module Power Distribution Unit .

  • Page 24: Removing Module Covers And Pedestal Grills

    Page 24 of 250 Replacing equipment • Capacity Engineering (553-3001-149) • System Installation Procedures (553-3001-210) • Circuit Card: Installation and Testing (553-3001-211) • Administration (553-3001-311) • System Messages Guide (553-3001-411) Removing module covers and pedestal grills Module covers To remove the front and rear covers from a module: With a flat-blade screwdriver, turn the lock clockwise on the two locking latches (see Figure 2 on page 25).
  • Page 25 Replacing equipment Page 25 of 250 Figure 2 Removing the pedestal grill Captive screw Captive screw 553-3054 Figure 3 Removing air exhaust grill Top cap Air exhaust grill Air exhaust grill 1/4 turn fasteners 553-7375 Hardware Replacement...

  • Page 26: Nt1P61 Fibre Superloop Network Card

    Page 26 of 250 Replacing equipment Air intake grill The front and rear air intake grills are secured by captive panel screws located in the face of the grill (see Figure 2 on page 25). Use a slotted screwdriver to release or secure the grill.
  • Page 27 Replacing equipment Page 27 of 250 Disconnect all the fibre-optic patchcords and the SDI/System Monitor cable from the card faceplate. Unlatch the card’s locking devices by squeezing the tabs and pulling the upper locking device away from the card and pressing the lower locking device downward.

  • Page 28: Nt1P62 Fibre Peripheral Controller Card

    Page 28 of 250 Replacing equipment NT1P62 Fibre Peripheral Controller Card Use this procedure to replace a Fibre Peripheral Controller card. • Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages. DANGER Module covers are not hinged;...

  • Page 29: Nt4N43 Cpci Multi-Media Disk Unit

    Replacing equipment Page 29 of 250 Pull the upper locking device away from the faceplate on the card and the lower locking device downwards and insert the card firmly into the backplane connector. Press the upper locking device firmly against the faceplate and the lower locking device upwards to latch the card inside the module.
  • Page 30 Page 30 of 250 Replacing equipment Review “Circuit cards” on page 16. To remove a card, hold the card by the faceplate and gently pull it out of the slot. To install a card, hold the card by the faceplate and gently push it into the slot until firmly seated and bolted into place.
  • Page 31 Replacing equipment Page 31 of 250 On the top cable, the Floppy, CD-ROM and Hard Drive Power Cable (NT4N95AA), squeeze the tabs, top and bottom, and release the cable. At the front of the module, use a slotted or Phillips screwdriver to unscrew the screws on the top and bottom center of the MMDU.
  • Page 32 Page 32 of 250 Replacing equipment Connect the shorter of the two ribbon cables to the slot (below the Floppy Drive) labeled IDE Secondary Channel. Open the tabs and push the connector to attach the third cable to the top cable connection labeled +12, GND,GND,VCC. From the front of the module, carefully slide the MMDU the remainder of the way into its slot.
  • Page 33 Replacing equipment Page 33 of 250 Remove the logic return (LTRN) (orange) wire from the backplane bolt. Be careful; do not drop the nut or lock washer into the pedestal. Remove the wire from the frame ground bolt on the module. Label and disconnect the module power connectors.
  • Page 34 Page 34 of 250 Replacing equipment At the front of the module, use a slotted or Phillips screwdriver to unscrew the screws on the top and bottom center of the MMDU. Note: Some systems have MMDU screws which are captive; some systems have MMDU screws which may be removed.
  • Page 35 Replacing equipment Page 35 of 250 From the front of the module, carefully slide the MMDU the remainder of the way into its slot. Use a slotted or Phillips screwdriver to secure the screws on the top and bottom center of the MMDU. Replace the card cage: Check that the power harness at the right rear corner of the card cage is attached card cage...
  • Page 36 Page 36 of 250 Replacing equipment Route cable NT4N88AA from COM1 on the CP PII faceplate to J25 on the I/O panel. (NT4N88AA is used to connect a terminal.) Route cable NT4N88BA from COM2 on the CP PII faceplate to J21 on the I/O panel.
  • Page 37 Replacing equipment Page 37 of 250 Replace the MMDU and attach the 3 cable in the reverse order as follows: Attach the NT4N92BA to the CD and HD on the new MMDU. Attach the NT4N93BA to the Floppy on the new MMDU. Attach the NT4N95BA power cable.
  • Page 38 Page 38 of 250 Replacing equipment Figure 5 Location of cable connections on MMDU Display panel POWER (NT4N94AA cable) + 12 Floppy, CD ROM and Hard Drive POWER cCNI cCNI cCNI cCNI SYS UTIL TRANS TRANS TRANS TRANS TRANS (NT4N95AA cable) SECURITY Floppy DATA (NT4N93AA cable)

  • Page 39: Nt4N65, And Nt4N66 Cpci Core Network Interface Cards

    Replacing equipment Page 39 of 250 NT4N65, and NT4N66 cPCI Core Network Interface Cards This section describes how to replace: • NT4N65 cPCI Core Network Interface Cards. See “Procedure 1: Replace the NT4N65 cPCI Core Network Interface (cCNI) card” on page 39. •...
  • Page 40 Page 40 of 250 Replacing equipment To install the replacement card, hold the card by the faceplate latches and gently push it into the slot until the connectors make contact with the backplane. Gently push the latches forward to set the card and lock it in place. CAUTION Damage to Equipment Never force the card into the slot.
  • Page 41 Replacing equipment Page 41 of 250 If the Core containing the cCNI Transition card is active, make the other Core active: SCPU Switch.Core (if necessary). In LD 135, software disable the cCNI card: DIS CNI c s p Disable the cCNI card, where: c = Core number (0 or 1) s = Slot number (9 - 12) p = Port number (0, 1)
  • Page 42 Page 42 of 250 Replacing equipment Gently push the latches forward to set the card and lock it in place CAUTION Damage to Equipment Never force the card into the slot. It the card gets stuck, remove it and try again. Place the 3PE Termination Panel into its mounting bracket.
  • Page 43 Replacing equipment Page 43 of 250 Figure 6 Core/Net backplane 3PE termination panel 3PE connection to cCNI cCNI transition card Transition cards Slot 9-0 and cables (factory installed) (factory installed) + 12 cCNI cCNI cCNI cCNI SYS UTIL TRANS TRANS TRANS TRANS TRANS...
  • Page 44 Page 44 of 250 Replacing equipment Figure 7 3PE Termination panel Route the Termination Panel to 3PE card cables throught the Network Module Access Hole 3PE Termination Panel Install SDI Paddle Board before connecting 3PE cables 553-9529 cCNI to Termination Panel to Termination panel 3PE card cables cables (factory installed)

  • Page 45: Nt4N67 And Nt4N68 System Utility Cards

    Replacing equipment Page 45 of 250 NT4N67 and NT4N68 System Utility cards This section describes how to replace: • NT4N67 cCPI System Utility Cards. See “Procedure 1: Replace the NT4N67 cPCI System Utility (SYS UTIL) card” on page 45. • NT4N68 cCPI System Utility Transition Cards.
  • Page 46 Page 46 of 250 Replacing equipment To remove the card, hold the card by the faceplate latches and gently pull it out of the slot. To install the replacement card, hold the card by the faceplate latches and gently push it into the slot until the connectors make contact with the backplane.
  • Page 47 Replacing equipment Page 47 of 250 Procedure 2: Replace the NT4N68 cPCI System Utility Transition (SYS UTILTRANS) card To replace a System Utility Transition Card, you must software and hardware disable the NT4N67 System Utility card associated with the NT4N68 System Utility Transition Card.
  • Page 48 Page 48 of 250 Replacing equipment Install the replaced NT4N68 SYS UTIL TRANS card. Gently push the latches forward to set the card and lock it in place CAUTION Damage to Equipment Never force the card into the slot. It the card gets stuck, remove it and try again.

  • Page 49: Nt4N64, And A0810496 Call Processor

    Replacing equipment Page 49 of 250 Figure 8 Core/Net backplane 3PE termination panel System Utility Transition card + 12 cCNI cCNI cCNI cCNI SYS UTIL TRANS TRANS TRANS TRANS TRANS SECURITY DISPLAY PANEL cCNI slots: 553-9487A NT4N64, and A0810496 Call Processor (CP PII) card This section describes how to replace the NT4N64, or the A0810496 Call Processor CP PII cards.
  • Page 50 Page 50 of 250 Replacing equipment Procedure 1: Replace the NT4N64, or the A0810496 Call Processor (CP PII) card Check that the Core containing the CP PII card to be replaced is inactive: The LCD/LED display panel across the top of the Core/Net module core cards has two rows of LEDs.

  • Page 51: Nt5D10 68060 Call Processor (Cp) Card

    Replacing equipment Page 51 of 250 After the inactive CP reloads, and in LD 135, check status: STAT CPU In LD 135, on the active CP, rejoin the two CP PII cards: JOIN After the disk sync and memory sync completes, and in LD 135,: STAT CPU To check for normal system operation.
  • Page 52 Page 52 of 250 Replacing equipment CAUTION Service Interruption At some point in this procedure, you will be required to warm start your system, causing a momentary interruption in call processing. Removing equipment To access the Core during the replacement procedure, connect a terminal to the J25 port on the I/O panel in the Core Module or Core/Network Module for the CP card you are replacing.
  • Page 53 When the Main Menu appears, select <u> to go to the Install Menu. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 54 Insert the Keycode diskette when prompted and select <a> to continue with the keycode validation. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 55 Replacing equipment Page 55 of 250 Select the following options to quit the Install Tool: <q> to quit <y> to confirm quit <a> to reboot the system. Note: The system will reboot. Wait for the “INI” and “DONE” messages to display before continuing. It will take at least 70 seconds between the “DONE”...
  • Page 56 Page 56 of 250 Replacing equipment If there are CCED messages generated by the STAT CPU command on the replacement CP card, set the NORM/MAINT switch to MAINT, press the reload (MAN RST) button, and set the NORM/MAINT switch back to NORM. (It may take 2 to 4 minutes for memory synchronization to take place.) After the HWI0533 message is displayed, test the replacement CP card from the active CPU:...
  • Page 57 Replacing equipment Page 57 of 250 Set the NORM/MAINT switch on the NT5D10 Call Processor card to MAINT on the active Core. Set the ENB/DIS switch on all CNI cards on the inactive Core to DIS. Perform the following three steps on the inactive Core in an uninterrupted sequence: Press and hold down the MAN RST button on the CP card on the inactive Core.
  • Page 58 Page 58 of 250 Replacing equipment Select the following options to quit: <q> to quit <y> to confirm quit <a> to reboot the system. Note: The system will reboot. Wait for the “INI” and “DONE” messages to display before continuing. It will take at least 70 seconds between the “DONE”...
  • Page 59 Replacing equipment Page 59 of 250 If there are CCED messages generated by the STAT CPU command on the replacement CP card, set the NORM/MAINT switch to MAINT, press the reload (MAN RST) button, and set the NORM/MAINT switch back to NORM. (It may take two to four minutes for memory synchronization to take place.) After the HWI0533 message is displayed, test the replacement CP card from the active CPU:...

  • Page 60: Nt5D12Aa Dual Dti/Pri (Ddp)

    Page 60 of 250 Replacing equipment NT5D12AA Dual DTI/PRI (DDP) Use this procedure to replace an NT5D12AA DDP card. See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages. DANGER Module covers are not hinged; do not let go of the cover.

  • Page 61: Installing The Ddp Card

    Replacing equipment Page 61 of 250 Rearrange Clock Controller cables, if required. CAUTION System Failure Do not route Clock Controller cables connecting the Clock Controller and DDP card through the center of the cabinet past the power harness. Instead, route them around the outside of the equipment shelves.

  • Page 62: Nt5D20 Iop/Cmdu Cards Or Nt6D63 Iop And Nt6D64 Cmdu Cards Replaced With Nt5D61 Iodu/C Cards

    Page 62 of 250 Replacing equipment Run and connect the DDP cables. CAUTION System Failure Do not route Clock Controller cables connecting the Clock Controller and DDP card through the center of the cabinet past the power harness. Instead, route them around the outside of the equipment shelves.

  • Page 63: Replacement Procedures For Redundant Systems (Options 61C)

    Replacing equipment Page 63 of 250 Note: IOP/CMDU or IOP and CMDU cards cannot be mixed with IODU/C cards in the same system. CAUTION Service Interruption Performing this procedure in a nonredundant system, such as 51C, will disrupt system operation. If possible, schedule the replacement at the lowest traffic time.
  • Page 64 Page 64 of 250 Replacing equipment • two NT5D61 IODU/C cards • two IODU/C Security Devices • a Database Transfer Utility diskette to archive the IOP/CMDU database on 2MB floppy diskettes. Note: The diskettes in the Software Install Kit are write protected. Ensure that you unprotect the disks before installation.

  • Page 65: Splitting The Cores

    Replacing equipment Page 65 of 250 Splitting the cores Verify that the disk drives are synchronized: LD 137 to load the program STAT to get the status of the disk drives If the disks are synchronized, proceed with Step 3 on page 65. If they are not synchronized, execute the SYNC command: SYNC to synchronize the drives...
  • Page 66 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Northern Telecom — Meridian 1 * * * * * * * * * * * *...
  • Page 67 Replacing equipment Page 67 of 250 At the Database Transfer Utility Install menu, select <t> to go to the Tools Menu. NT Meridian - 1 Software/Database/PEROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — —...
  • Page 68 Page 68 of 250 Replacing equipment At the Database Transfer Utility Tools menu select <s> to archive the database on one or more 2MB diskettes. NT Meridian - 1 Software/Database/PEROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — —...
  • Page 69 Make sure the 8-digit code on the keycode diskette matches the 8-digit code on the Security Device. With the Nortel side facing upward, slide the Security Device between the black round security device holder on the top right hand corner of the IODU/C card and the holder clip.
  • Page 70 Page 70 of 250 Replacing equipment Ensure that the ENB/DIS switch on the NT5D61AA IODU/C you will install is set to DIS. Insert the NT5D61AA IODU/C into the following slots: — For NT5D21 Core/Net Modules, insert the IODU/C in slots 17,18, and 19.
  • Page 71 When the Main Menu appears, select <u> to go to the Install menu. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 72 At the Install menu, select <b> to install software, database, CP-BOOTROM, and IOP-ROM. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — —...
  • Page 73 Page 73 of 250 Select <a> to continue with the software upgrade. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 74 Page 74 of 250 Replacing equipment A Status Summary is displayed indicating what will be installed. Select <y> to confirm the start of installation. INSTALLATION STATUS SUMMARY Choice Option Status Comment from xxxx to xxxx SW: CD to disk SW: disk to ROM Database CP-BOOTROM IOP-ROM...
  • Page 75 Page 75 of 250 Select <a> to continue with software installation. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 76 Replacing equipment Select <a> to install the customer database. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — —...
  • Page 77 Page 77 of 250 Select <a> to continue with the ROM upgrade. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 78 Replacing equipment Select <a> to continue with the IOP-ROM upgrade Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —...
  • Page 79 Replacing equipment Page 79 of 250 Switch call processing from Core 0 to Core 1 CAUTION Service Interruption Perform the next steps carefully. This is the point at which your service is interrupted. Calls in progress will be interrupted, especially if Peripheral Software Download takes place.
  • Page 80 Make sure that the 8-digit code on the Keycode diskette matches the 8-digit code on the Security Device. With the Nortel side facing upward, slide the Security Device between the black round security device holder on the top right hand corner of the IODU/C card and the holder clip.
  • Page 81 When the Main Menu appears, select <u> to go to the Install Menu. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 82 Insert the Keycode diskette when prompted and select <a> to continue with the keycode validation. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 83 At the Install menu, select <o> to copy the software from Core 1 to Core 0. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — —...
  • Page 84 Select <a> to copy /p partition from Core 1 to Core 0. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 85 Page 85 of 250 Select <a> to continue with the IOP-ROM upgrade. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — —...
  • Page 86 Page 86 of 250 Replacing equipment Return the system to redundant mode To place the system back in the redundant (normal) mode with automatic switchover capability, perform the following steps in uninterrupted sequence on the inactive Core: — Press and release the MAN RST button on the CP card in the inactive Core.

  • Page 87: Replacement Procedure For Option 51C Systems

    Replacing equipment Page 87 of 250 Get the status of the Cores, CNIs, and memories STAT CPU Get the status of both Cores. STAT CNI Get the status of all configured CNIs and memories. Load LD 137 and synchronize hard disks. Synchronization may take up to 50 minutes.
  • Page 88 Page 88 of 250 Replacing equipment • Keycode diskette • Database diskette(s) • one NT5D61AA IODU/C card • one IODU/C Security Device • a Database Transfer Utility to archive the IOP/CMDU or CMDU database on 2MB floppy diskettes. Performing a data dump Before starting this procedure, make a backup copy of the customer database on a 4MB diskette using the data dump routine: Log into the system...
  • Page 89 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Northern Telecom — Meridian 1 * * * * * * * * * * * *...
  • Page 90 Page 90 of 250 Replacing equipment At the Database Transfer Utility Install menu, select <t> to go to the Tools Menu. NT Meridian - 1 Software/Database/PEROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — —...
  • Page 91 Replacing equipment Page 91 of 250 At the Database Transfer Utility Tools menu select <s> to archive the database on one or more 2MB diskettes. NT Meridian - 1 Software/Database/PEROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — —...
  • Page 92 Make sure the 8-digit code on the Keycode diskette matches the 8-digit code on the Security Device. With the Nortel side facing upward, slide the Security Device between the black round security device holder on the top right hand corner of the IODU/C card and the holder clip.
  • Page 93 At the Main menu select <u> to go to the Install menu. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 94 At the Install menu, select <b> to install software, database, CP-BOOTROM, and IOP-ROM. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — —...
  • Page 95 Page 95 of 250 Select <a> to continue with the software upgrade. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 96 Page 96 of 250 Replacing equipment A Status Summary is displayed indicating what will be installed. Select <y> to confirm the start of installation. INSTALLATION STATUS SUMMARY Choice Option Status Comment from xxxx to xxxx SW: CD to disk SW: disk to ROM Database CP-BOOTROM IOP-ROM...
  • Page 97 Page 97 of 250 Select <a> to continue with software installation. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 98 Replacing equipment Select <a> to install the customer database. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — —...
  • Page 99 Page 99 of 250 Select <a> to continue with the CP-BOOTROM upgrade. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 100 Replacing equipment Select <a> to continue with the IOP-ROM upgrade Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —...

  • Page 101: Completing The Upgrade

    Replacing equipment Page 101 of 250 Completing the upgrade Log into the system. Verify CPU and CNI functionality: LD 135 to load the program STAT CPU to check the CPU status STAT CNI to verify CNI functionality **** to exit the program Make a backup of the customer database on 2MB diskettes: Load the Equipment Data Dump Program (LD 43).

  • Page 102: Nt5D61 Input/Output Disk Unit With Cd-Rom (Iodu/C)

    Page 102 of 250 Replacing equipment NT5D61 Input/Output Disk Unit with CD-ROM (IODU/C) Use this procedure to replace a faulty IODU/C card with a new IODU/C card. CAUTION Service Interruption Performing this procedure in a nonredundant system, such as 51C, will disrupt system operation. If possible, schedule the replacement at the lowest traffic time.

  • Page 103: Splitting The Cores

    Replacing equipment Page 103 of 250 When “DATADUMP COMPLETE” and “DATABASE BACKUP COMPLETE” appear on the terminal, enter **** to exit the program CAUTION System Failure If the data dump is not successful, do not continue; contact your technical support organization. A data dump problem must be corrected before proceeding.

  • Page 104: Replacing The Iodu/C In A Redundant System

    Page 104 of 250 Replacing equipment Verify that the IODU/C card you are replacing is on the inactive Core: LD 135 to load the program STAT CPU to check CPU status TEST CPU to test the CPU If the IODU/C you are replacing is on the inactive Core, proceed with Step 5 on page 104.
  • Page 105 Replacing equipment Page 105 of 250 With the Nortel side facing upward, slide the Security Device between the security device holder and the holder clip in the new IODU/C card. Do not bend the clip more than necessary when inserting the Security Device.
  • Page 106 At the Install menu, select <o> to copy the software from the active Core. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — —...
  • Page 107 Page 107 of 250 Select <a> to confirm. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —...
  • Page 108 Replacing equipment Select <a> to continue with the IOP-ROM upgrade. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —...

  • Page 109: Replacing The Iodu/C In An Option 51C

    IODU/C card being replaced. Put the IODU/C being replaced into a static bag and box. With the Nortel side facing upward, slide the Security Device between the security device holder and the holder clip in the new IODU/C card. Do not bend the clip more than necessary when inserting the Security Device.
  • Page 110 At the Main Menu select <u> to go to the Install Menu. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 111 Insert the Keycode diskette when prompted and select <a> to continue with the keycode validation. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 112 At the Install menu, select <b> to install software, database, CP-BOOTROM, and IOP-ROM. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — —...
  • Page 113 Page 113 of 250 Select <a> to continue with the software upgrade. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 114 Page 114 of 250 Replacing equipment A Status Summary is displayed indicating what will be installed. Select <y> to confirm the start of installation. INSTALLATION STATUS SUMMARY Choice Option Status Comment from xxxx to xxxx SW: CD to disk SW: disk to ROM Database CP-BOOTROM IOP-ROM...
  • Page 115 Page 115 of 250 Select <a> to continue with software installation. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 116 Replacing equipment Select <a> to continue with the ROM upgrade. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 117 Page 117 of 250 Select <a> to install the customer database. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — —...
  • Page 118 Replacing equipment Select <a> to continue with the CP-BOOTROM upgrade. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 119 Page 119 of 250 Select <a> to continue with the IOP-ROM upgrade Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — —...

  • Page 120: Completing The Upgrade

    Replacing equipment 28 Select <a> to reboot the system. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — —...

  • Page 121: Nt5D61 Iodu/C Security Device

    Replacing equipment Page 121 of 250 Load the Equipment Data Dump Program (LD 43). At the prompt, enter LD 43 to load the program When “EDD000” appears on the terminal, enter to begin the data dump When “DATADUMP COMPLETE” and “DATABASE BACKUP COMPLETE”...

  • Page 122: Replacing The Security Device On A Redundant System

    Page 122 of 250 Replacing equipment See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages. DANGER Module covers are not hinged; do not let go of the cover. Lift the cover away from the module and set it out of your work area.
  • Page 123 Replacing equipment Page 123 of 250 SCPU switch CPUs (if necessary) **** exit LD 135 Insert the keycode diskette into the floppy drive on the IODU/C with the non-faulty Security Device. In LD 143, print the pending keycode contents. Use “KSHO F0” if your keycode is on the diskette in the floppy drive on Core 0, or “KSHO F1”...
  • Page 124 Page 124 of 250 Replacing equipment With the Nortel side facing upward, slide the replacement Security Device between the security device holder and the holder clip. Do not bend the clip more than necessary when inserting the Security Device. Ensure that the Security Device is securely in place.

  • Page 125: Replacing The Security Device On An Option 51C System

    Make sure the 8-digit code on the Keycode diskette matches the 8-digit code on the replacement Security Device. With the Nortel side facing upward, slide the replacement Security Device between the security device holder and the holder clip. Do not bend the clip more than necessary when inserting the Security Device.
  • Page 126 Installation Tool has loaded. Press <CR> to go to the Install Menu. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — —...
  • Page 127 At the Main menu select <u> to go to the Install menu. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 128 At the Install menu select <k> - “To install Keycode only.” Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — —...
  • Page 129 Page 129 of 250 Select <y> to confirm quit. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — — —...

  • Page 130: Nt5D2103 Core/Network Card Cage

    Page 130 of 250 Replacing equipment NT5D2103 Core/Network Card Cage To replace a defective backplane in an NT5D21 Core/Network Module, you must replace the card cage. CAUTION Service Interruption The following procedures describe card cage replacement for redundant systems such as 61C, and 81C.
  • Page 131 Replacing equipment Page 131 of 250 SCPU switch Cores **** exit LD 135 Set the NORM/MAINT switch to MAINT on the now active CP card. Connect the terminal to the port on the inactive Core. Set the NORM/MAINT switch to MAINT on the CP card in the card cage you are replacing (the inactive Core).
  • Page 132 Page 132 of 250 Replacing equipment Load LD 37 and software disable the associated SDI port: LD 37 DIS TTY x disable the device associated with the port **** exit LD 37 If the card cage you are removing is in the column with the master system monitor (should be column 0): On the master system monitor (column 0), disconnect the RJ11 cable to J3, then the cable to J6, then pull the system monitor out of the slot.
  • Page 133 Replacing equipment Page 133 of 250 Follow the steps below to remove all cards from the module: Tag and disconnect all cables to the front of the module. Tape over the contacts to avoid grounding. Tape or tie all cables to the sides so the working area in front of the card cage is totally clear.
  • Page 134 Page 134 of 250 Replacing equipment Disconnect the frame ground (green) wire from the frame ground post. CAUTION Service Interruption Do not disconnect the main power connectors (large orange connectors) at the top and bottom of the module. Pull the card cage all the way out of the module. Note: For AC-powered systems, after the card cage is out of the module you must remove the MPDU and reinstall it on the replacement card cage.
  • Page 135 Replacing equipment Page 135 of 250 Reposition the EMI shield (it looks like a brass grill) in the base of the module. Tape over the front mounting tabs to hold the shield in position. The tape will be removed later. Slide the new card cage about halfway into the module.
  • Page 136 Page 136 of 250 Replacing equipment — On the NT5D2103 card cage, the LEDs are on the front side of the backplane. The LEDs are in two vertical columns, one on either side of slot 12 (if necessary, remove the CNI card to view the LEDs).
  • Page 137 Replacing equipment Page 137 of 250 Follow the appropriate steps below to connect the clock controller cables: For a QPC471 Clock Controller card, connect the NT8D79 cables from the primary or secondary reference to the faceplate of the clock controller card. For Options 81C, connect the NT8D74 cable from the NT8D36 InterGroup Module to the clock controller card.
  • Page 138 Page 138 of 250 Replacing equipment TEST CNI c s test each configured CNI on the inactive side **** exit LD 135 Set the ENB/DIS switch to ENB on the clock controller card. Set the ENB/DIS switch to ENB on all CNI cards. Press and release the MAN RST button on the CP card in the new card cage.
  • Page 139 Replacing equipment Page 139 of 250 Get the status of the CP cards and memories, and of the CNIs: STAT CPU get the status of both Cores STAT CNI get the status of all configured CNIs **** exit LD 135 Synchronize the disk drives: LD 137 SYNC...

  • Page 140: Nt5K09 Quad Digitone Receiver

    Page 140 of 250 Replacing equipment Enable the clock controller card: LD 60 ENL CC x TRCK aaa if necessary, set tracking Enable the PRI/DTI cards: ENLL loop **** exit LD 60 Follow the appropriate steps below to reinstall and check the system monitor: If you replaced the card cage in the column with the master system monitor:...
  • Page 141 Replacing equipment Page 141 of 250 See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages. DANGER Module covers are not hinged; do not let go of the cover. Lift the cover away from the module and set it out of your work area.

  • Page 142: Nt5K10 Dual Loop Peripheral Buffer Card

    Page 142 of 250 Replacing equipment Test each loop on the card by entering LD 30 LOOP l If there is a problem, an NWS system message will be produced and the appropriate red LED will light on the faceplate of the card. End the session in LD 30 by entering **** Tag defective equipment with a description of the problem and...

  • Page 143: Nt5K1106 Enhanced Peripheral Equipment Card Cage

    Replacing equipment Page 143 of 250 Tag and disconnect cables to the card you are removing. Unhook the locking devices on the card; pull it out of the card cage. Installing equipment Set option switches on the replacement card the same as on the card you removed.
  • Page 144 Page 144 of 250 Replacing equipment See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages. DANGER Module covers are not hinged; do not let go of the cover. Lift the cover away from the module and set it out of your work area.
  • Page 145 Replacing equipment Page 145 of 250 Tag and disconnect all plugs, wires, and cables to the backplane. Figure 9 EEPE access plates (rear view) backplane power plug access plate access plate 553-7377 Remove the two mounting screws that secure the back of the card cage to the UEM assembly.

  • Page 146: Nt5K21Aa Extended Multi - Frequency Compelled

    Page 146 of 250 Replacing equipment Connect all cables from the interior of the I/O assembly to the backplane. Connect all plugs, wires, and cables to the backplane. Position the power plug access plate. Replace the screws. Return cards to their slots at the rear of the UEM. Reconnect all cables to connectors.
  • Page 147 Replacing equipment Page 147 of 250 Removing equipment Software disable the card: LD 32 STAT l s c DIS l s c (“l s c” represents loop, shelf, and card number) You will see “NPR011” on the system terminal when the card is disabled. Busy channels will not be disabled until the call is disconnected.

  • Page 148: Nt6D40, Nt6D41, Nt6D42, Power Supply Dc

    Page 148 of 250 Replacing equipment Tag defective equipment with a description of the problem and package it for return to a repair center. NT6D40, NT6D41, NT6D42, Power Supply DC Use this procedure to replace the following DC power supplies: •...

  • Page 149: Nt6D65 And Ntrb34 Core To Network Interface Cards

    Replacing equipment Page 149 of 250 NT6D65 and NTRB34 Core to Network Interface Cards Use this procedure to replace the Core to Network Interface (CNI) or Core to Network Interface 3 (CNI-3) card. See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages.
  • Page 150 Page 150 of 250 Replacing equipment Software configure the new slot: LD 17 EXT x 3PE “x” is the number (0–4) of the associated 3PE card(s) CNI X s p delete the group(s) associated slot CNI s p g add group(s) to new slot **** exit LD 17 LD 43...

  • Page 151: Nt7D10 Power Distribution Unit Dc

    Replacing equipment Page 151 of 250 Set the ENB/DIS switch to ENB on the replacement card. Set the NORM/MAINT switch to NORM on the active CP card. Software enable and test the CNI card and configured ports on the card: ENL CNI c s “c”...
  • Page 152 Page 152 of 250 Replacing equipment Figure 10 NT7D10 Power Distribution Unit DC System monitor Circuit breaker bank Ground lugs Field wiring terminal 553-3039 (below PDU) Remove the grill on the front of the pedestal. Set the toggle switch on the front of the unit to OFF (left). Turn the screws on the front of the unit counterclockwise and pull the unit forward several inches so the connector on the rear disengages.
  • Page 153 Replacing equipment Page 153 of 250 Disconnect the large orange power connector (J1) from the PDU. Note: To disconnect the power plug, you must press a latch trip on the front and rear of the plug. You may need to use a screwdriver blade against the latch trip on the front of the plug.
  • Page 154 Page 154 of 250 Replacing equipment Figure 11 Cabling between the PDU and the field wiring terminal block View looking down at the pedestal Blower unit position in the pedestal Pedestal rear Field wiring pulled out of terminal block the pedestal (located beneath the PDU) 553-5487...

  • Page 155: Nt7D67Cb Power Distribution Unit Dc

    Replacing equipment Page 155 of 250 Reseat the blower unit: Lift the unit slightly and slide it into the pedestal glides. Set the toggle switch to ON (right). Tighten the screws on the front of the unit. Insert the system monitor card into the PDU. Tighten the screws on the card.
  • Page 156 Page 156 of 250 Replacing equipment Unseat the blower unit in the front of the pedestal: Remove the grill on the front of the pedestal. Set the toggle switch on the front of the unit to OFF (left). Turn the screws on the front of the unit counterclockwise and pull it forward several inches (you will see the L-bracket on the rear of the unit) until the connector disengages from the rear of the PDU.
  • Page 157 Replacing equipment Page 157 of 250 Disconnect cables that run between the module above the pedestal (module 0) and the PDU: Remove the rear cover on the module. Remove the I/O safety panel over the backplane in the module. Disconnect the system monitor ribbon cable from module 0. Disconnect the large orange power connector (J1) from the PDU.
  • Page 158 Page 158 of 250 Replacing equipment Figure 13 Field wiring terminals in the NT7D67CB PDU NT7D67CB FLTR / PWR DIST BATRTN BATRTN LRTN UNIT ASSY BLO CB0 CB1 553-5800 Remove the PDU: Note: When a system is shipped, a set of screws secures the leveling bracket at the rear of the PDU to protect against vibration during transit.
  • Page 159 Replacing equipment Page 159 of 250 Gently push the PDU into the pedestal. Position the leveling bracket (attached to the rear of the PDU) in the small opening toward the front of the pedestal. The leveling bracket will support the back of the PDU. Install the NT7D10CA system monitor assembly: Connect the small orange connectors (J2 on the PDU, P2 on the system monitor assembly) on the left side of the PDU.
  • Page 160 Page 160 of 250 Replacing equipment The safety ground/protective earth wires and all wiring to the block in the PDU must be neatly routed within the cable-tie saddles and under the cable restraint bar at the base of the pedestal. This ensures that there is room to install the PDU cover, safety cover, and rear grill.

  • Page 161: Nt7R51 Local Carrier Interface Card

    Replacing equipment Page 161 of 250 NT7R51 Local Carrier Interface Card Use this procedure to replace a Local Carrier Interface card. See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages. DANGER Module covers are not hinged;...

  • Page 162: Nt7R52 Remote Carrier Interface Card

    Page 162 of 250 Replacing equipment Observe the red LED on the front panel during self-test. If it flashes three times and stays on, it has passed the test. Go to step 11. If it does not flash three times and then stays on, it has failed the test. Pull the card partially out of the module and reinsert it firmly into the module.

  • Page 163: Nt8D01 Controller Card

    Replacing equipment Page 163 of 250 Pull the card out of the IPE module or cabinet and place it into an antistatic bag away from the work area. Hold the replacement card by the card locking devices and insert it partially into the card guides in the module.
  • Page 164 Page 164 of 250 Replacing equipment Removing equipment Turn off power to the module: — With AC power, set the associated circuit breaker on the module power supply (MPDU) to OFF (down). Note: If there are two circuit breakers on the MPDU, the top one is associated with the module power supply, the bottom one with the ringing generator.

  • Page 165: Nt8D02, Nt8D03, Nt8D09, Nt8D14, Nt8D15, Nt8D16 Intelligent Peripheral Equipment Card

    Replacing equipment Page 165 of 250 Software enable and test the controller card (and all cards connected to the controller): ENXP x — If there is a problem, an NPR, NWS, or SDL system message may be produced and the red LED lights on the controller card. —...
  • Page 166 Page 166 of 250 Replacing equipment • NT5K90 Central Office Trunk Card • NT5K93 Central Office Trunk Card • NT5K96 Analog Line Card • NT5K99 Central Office Trunk Card • NT8D02 Digital Line Card • NT8D03 Analog Line Card • NT8D09 Analog Message Waiting Line Card •...
  • Page 167 Replacing equipment Page 167 of 250 Installing equipment Set jumpers on the following replacement cards the same as on the card you removed: NT8D14 Universal Trunk Card NT8D15 E&M Trunk Card To check settings, see Circuit Card: Installation and Testing (553-3001-211). Insert the replacement card into the vacated slot and hook the locking devices.

  • Page 168: Nt8D04 Superloop Network Card, Qpc414 Network Card

    Page 168 of 250 Replacing equipment NT8D04 Superloop Network Card, QPC414 Network Card Use this procedure to replace a superloop network card or network card. See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages.

  • Page 169: Nt8D06, Nt8D21, Nt8D29 Power Supply Ac

    Replacing equipment Page 169 of 250 Installing equipment Set the ENB/DIS switch to DIS on the replacement card. Note: On a replacement QPC414, set jumpers the same as on the card you removed. If there is a vintage change, be sure to check Circuit Card: Installation and Testing (553-3001-211) for any differences.
  • Page 170 Page 170 of 250 Replacing equipment Removing equipment Turn off power to the module power supply: — If there is a Module Power Distribution Unit (MPDU), set the circuit breaker(s) on the associated MPDU to OFF (down). Note: If there are two circuit breakers on the MPDU, the top one is associated with the module power supply, the bottom one with the ringing generator (see Figure 14 on page 171).

  • Page 171: Nt8D17 Conference/Tds Card

    Replacing equipment Page 171 of 250 Figure 14 Dual circuit breaker and associated module power supplies PE Module Module power supply MPDU Ringing generator Cont PE Pwr Sup Rng Gen Intelligent Superloop Peripheral Equipment Shelf 553-5376 NT8D17 Conference/TDS Card The conference/TDS card provides conference functions on one loop and both tone and digit switch (TDS) and multifrequency sender (MFS) functions on a second loop.
  • Page 172 Page 172 of 250 Replacing equipment Removing equipment Software disable the conference/TDS card: LD 34 or LD 38 or LD 46 DISX loop In LD 38 “loop” is the conference loop that is the odd loop of the conference/TDS loop pair. In LD 34 and LD 46 “loop”...

  • Page 173: Nt8D22 System Monitor

    Replacing equipment Page 173 of 250 Test TDS capability: LD 34 TDS loop “loop” is an even loop number Test Conference capability: LD 38 CNFC loop “loop” is an odd loop number Test MFS capability: LD 46 MFS loop “loop” is an even loop number If there is a problem, a TDS, CNF, or MFS system message is generated and the appropriate red LED lights on the card faceplate.
  • Page 174 Page 174 of 250 Replacing equipment Figure 15 NT8D22 System Monitor in an AC-power pedestal System monitor Mounting screw Main circuit Power distribution Mounting screws breaker unit—AC 553-3013 Loosen the two screws on the card and pull it out of the slot. Note: If a slave is removed, the master considers that slave and all slaves with a higher address as disabled.

  • Page 175: Nt8D41 Dual Or Quad Port Serial Data Interface Card

    Replacing equipment Page 175 of 250 — If a slave was replaced successfully, you will receive “PWR053 XSMC xx 0 0” (“x” is the system monitor address). — If there is a problem with a slave, you will receive system message “PWR013 XSMC xx 0 0.”...
  • Page 176 Page 176 of 250 Replacing equipment Removing equipment Software disable each port on the SDI paddle board: LD 37 DIS TTY x “x” is the number of the interface device attached to the port Remove the rear cover on the module. Remove the I/O safety panel by turning the screws on each side.

  • Page 177: Nt8D46Ac Thermostat Harness

    Replacing equipment Page 177 of 250 Software enable and test each port on the paddle board: ENL TTY x TTY x — If there is a problem, an IOD system message is generated and the red LED lights on the faceplate of the card. —...
  • Page 178 Page 178 of 250 Replacing equipment At the top of the rear of the module, disconnect the connector from the module power harness. Disconnect the pin headers on connector J2 on the backplane; disconnect the ribbon cable connector. Remove the top cap: Remove air exhaust grills at the front and rear of the top cap (see Figure 16 on page 178).
  • Page 179 Replacing equipment Page 179 of 250 Figure 17 Top cap assembly Mounting bolts Top cap Front of column Screw for LED bracket on perforated panel 553-3038 Figure 18 Mounting for the column LED Mounting Collar bracket ring (back) Collar (front) Perforated panel screw 553-3048...
  • Page 180 Page 180 of 250 Replacing equipment Clip all cable ties that secure the thermostat harness. Be careful not to damage other wiring (such as the air probe harness). Pull the LED through the rubber grommet at the front of the perforated panel.
  • Page 181 Replacing equipment Page 181 of 250 Gently push the LED forward completely through the collar on the LED mounting bracket. Push the LED ring into position over the back of the collar and tight against the LED mounting bracket. Figure 20 Routing the thermostat harness from the top cap Cable well Orange connector...

  • Page 182: Nt8D46Am, Nt8D46Dc Air Probe Harness

    Page 182 of 250 Replacing equipment Connect the ribbon cable connector to connector J2 on the backplane. Line up the alignment tab on the connector and snap on the pin headers to position the connector correctly (see Figure 22 on page 182). Figure 22 Aligning the thermostat harness connector Alignment tab...
  • Page 183 Replacing equipment Page 183 of 250 Remove the I/O safety panel over the backplane. At the top of the rear of the module, disconnect the orange connector from the module power harness. Remove the top cap: Remove air exhaust grills at the front and rear of the top cap (see Figure 23 on page 183).
  • Page 184 Page 184 of 250 Replacing equipment Figure 24 Top cap assembly Mounting bolts Top cap Front of column Screw for LED bracket on perforated panel 553-3038 Figure 25 Air probe harness Air probe To orange connector wiring Air probe Perforated panel (bottom) Front...
  • Page 185 Replacing equipment Page 185 of 250 Figure 26 Connector for the air probe harness Push here Orange connector Push here 553-5888 Installing equipment Install the replacement air probe harness: Gently push the air probe into the clip holder. Route the air probe wiring on the perforated panel. At the rear edge of the panel, route the wires with wiring for the thermostat harness.
  • Page 186 Page 186 of 250 Replacing equipment Position the perforated panel and install the screw that secures it at the LED bracket. Position the top cap and install the six bolts that secure the top cap and perforated panel. Install the air exhaust grills at the front and rear of the top cap. Reconnect the air probe harness plug: Connect the orange connector to the module power harness.

  • Page 187: Nt8D52Ab, Nt8D52Dd Pedestal Blower Unit

    Replacing equipment Page 187 of 250 NT8D52AB, NT8D52DD Pedestal Blower Unit Use this procedure to replace a blower unit. Removing equipment Remove the front pedestal grill and set it aside. Figure 28 on page 187 shows the blower unit and its location in the front of the pedestal. Figure 28 NT8D52 Blower Unit Turn off power to the blower unit:...

  • Page 188: Nt8D53Ad Power Distribution Unit

    Page 188 of 250 Replacing equipment Grasp the lip at the top edge of the blower unit. Slide the unit out of the glides and onto the bottom ledge of the pedestal. Lift the unit out of the pedestal. Note: Store the blower unit in an upright position. Installing equipment Set the replacement blower unit on the bottom ledge of the pedestal.
  • Page 189 Replacing equipment Page 189 of 250 Figure 29 NT8D53CA Power Distribution Unit AC System monitor Mounting screw Main circuit Power distribution Mounting screws breaker unit—AC 553-3013 Loosen the three mounting screws that secure the field wiring access plate. Lift the plate over the screws and set it aside. Tag and disconnect wiring to the LRTN, GND, L2, and L1 connections on the right side of the field wiring terminal (see Figure 30 on page 190).
  • Page 190 Page 190 of 250 Replacing equipment Figure 30 Connections at the field wiring terminal LRTN To LRE 553-3086 Disconnect the power plug (J1) and system monitor ribbon cable to the module. Note: To disconnect the power plug, you must press a latch trip on the front and rear of the plug.

  • Page 191: Nt8D56Aa, Nt8D56Ac, Nt8D57 Module Power Distribution Unit

    Replacing equipment Page 191 of 250 Connect wiring to the right side of the field wiring terminal. Position the field wiring access plate over the three mounting screws. Tighten the screws. Turn on power at the distribution box or plug in the power cable. Set the main circuit breaker to ON (up).
  • Page 192 Page 192 of 250 Replacing equipment Removing equipment Remove the rear grill on the column pedestal. Set the main circuit breaker to OFF (down). CAUTION Service Interruption Shutting off the main circuit breaker disables the entire column. Remove the I/O safety panel over the backplane. Tag and disconnect the power plugs to the MPDU.

  • Page 193: Nt8D3503/Nt8D3507 Network Module Card Cage

    Replacing equipment Page 193 of 250 Installing equipment Set the circuit breaker(s) on the replacement MPDU to OFF (down). Position the replacement MPDU in the module. Install the mounting screws through the wall of the power supply slot. Reinsert the power supply and hook the locking devices. Position the metal plate in front of the MPDU and install the mounting screw in each corner.

  • Page 194: Connect Groups 1 Through 7: Shelf 0 To Shelf 1

    Page 194 of 250 Replacing equipment Connect groups 1 through 7: shelf 0 to shelf 1 On the back of each Network module backplane are five connectors: A, B, C, D and E. See Figure 32 on page 195. The connectors from shelf 0 of each Network group 1 through 7 must be connected to the connectors in shelf 1 of the same Network group.

  • Page 195: Connect The Network Modules To The Core/Net Modules

    Replacing equipment Page 195 of 250 Figure 32 Network shelf 0 to shelf 1 backplane connections (groups 1 through 7) Network backplane: shelf 1 Network backplane: shelf 0 NT8D99AB cable 553-9584 Connect the Network modules to the Core/Net modules Each Network shelf contains one 3PE card. These 3PE cards are connected to the Termination Panel in the back of the Core/Net shelves.

  • Page 196: Ccni Slot And Port Assignments

    Page 196 of 250 Replacing equipment Figure 33 3PE Termination Panel in the Core/Net module (top view) Termination Panel cCNI Transition Cables (factory installed) Port 9-0: direct connection to cCNI Transition Card (factory installed) 553-9488 cCNI slot and port assignments Each system contains a minimum of one and a maximum of four CNI cards.
  • Page 197 Replacing equipment Page 197 of 250 Figure 34 Core/Net backplane (rear view) 3PE termination panel 3PE connection to cCNI cCNI transition card Transition cards Slot 9-0 and cables (factory installed) (factory installed) + 12 cCNI cCNI cCNI cCNI SYS UTIL TRANS TRANS TRANS...
  • Page 198 Page 198 of 250 Replacing equipment Figure 35 3PE Termination Panel (rear module view) Route the Termination Panel to 3PE card cables throught the Network Module Access Hole 3PE Termination Panel Install SDI Paddle Board before connecting 3PE cables 553-9529 cCNI to Termination Panel to Termination panel...

  • Page 199: Ccni To 3Pe Termination Panel Cable Connections

    Replacing equipment Page 199 of 250 Table 3 on page 199 specifies the default Network group assignments for each cCNI slot and port. These designations can be changed in software if necessary. Table 3 cCNI Network group designations Connected cCNI card cCNI card 3PE Termination Panel to Network...
  • Page 200 Page 200 of 250 Replacing equipment Figure 36 3PE Termination Panel (Core/Net module) Notch for Slot 9-0, J3 and J4: direct connections to the Core/Net SLOT 12-0 SLOT 12-0 SLOT 11-0 SLOT 11-0 backplane SLOT 12-1 SLOT 12-1 SLOT 10-0 SLOT 10-0 (factory installed) SLOT 11-1...

  • Page 201: Nt8D3703 Ipe Module Card Cage

    Replacing equipment Page 201 of 250 Connect the Network shelf 0 3PE cards to Core/Net 0 Connect a NT8D76 cable of the appropriate length from J3 on the 3PE card faceplate in Network group 1, shelf 0 to the Port 9-1, J3 connection on the 3PE Termination Panel in Core/Net 0.
  • Page 202 Page 202 of 250 Replacing equipment Figure 37 Example of 3PE faceplate to 3PE Termination Panel connection CE Module Network Group 1, shelf 0 9 10 11 12 13 14 CE Pwr Sup Network Group Common Equipment Shelf Termination Panel Core/Net 0 SLOT 12-0 SLOT 12-0 SLOT 11-0 SLOT 11-0 SLOT 12-1 SLOT 12-1...
  • Page 203 Replacing equipment Page 203 of 250 See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages. DANGER Module covers are not hinged; do not let go of the cover. Lift the cover away from the module and set it out of your work area.
  • Page 204 Page 204 of 250 Replacing equipment Remove the NT8D22 System Monitor in the rear of the pedestal. (Do not turn off the blower unit in the front of the pedestal.) Note: If this is the master system monitor, disconnect the RJ11 cables before you pull the system monitor out of the pedestal.

  • Page 205: Nt9D19 68040 Call Processor (Cp) Card Replacement In

    Replacing equipment Page 205 of 250 Connect all cables from the interior of the I/O assembly to the backplane. Connect all plugs, wires, and cables to the backplane. Position the I/O safety panel. Tighten the screws. Return cards to their slots. Reconnect all cables to faceplate connectors.
  • Page 206 Page 206 of 250 Replacing equipment Note: This procedure may also be used to replace a 64 MB NT9D19 CP card with a 96 MB NT9D19 CP card. CAUTION Service Interruption Replacing the CP card in a nonredundant system, such as 51C, will disrupt system operation. If possible, schedule the replacement at the lowest traffic time.
  • Page 207 Replacing equipment Page 207 of 250 The CP card you are replacing must be in the inactive Core. Check the status of the NT9D19 Call Processor cards: LD 135 STAT CPU determine which CP card is active If necessary, switch Cores: SCPU switch Cores ****...
  • Page 208 At the Main Menu select <u> to go to the Install Menu. Nortel Meridian - 1 Software/Database/PEROM CDROM INSTALL Tool (x11) — — — — — — — — — — — — — — — — — — — — — —...
  • Page 209 Replacing equipment Page 209 of 250 <y> to continue installation <a> to continue with ROM upgrade <cr> to return to the Install Menu At the Install Menu, select the following options in sequence <e> to install CP-BOOTROM <y> to start installation <y>...
  • Page 210 Page 210 of 250 Replacing equipment Enable all CNI switches in the inactive Core. Release the MAN RST button. Set the CP card in the active Core to NORM. After several minutes, an “HWI533” message is issued by the active Core indicating that the inactive Core memory is being synchronized with the active Core memory.

  • Page 211: Ntag26 Extended Multi-Frequency Receiver

    Replacing equipment Page 211 of 250 Switch Cores and exit the program: SCPU **** exit LD 135 NTAG26 Extended Multi-frequency receiver Use the following procedure to replace a defective NTAG26 Multi-frequency Receiver Card (XMFR) in the IPE module. See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages.

  • Page 212: Ntbk51Aa Downloadable D-Channel Daughterboard

    Page 212 of 250 Replacing equipment End the session in LD 32 by entering **** Test the loop on the card by entering LD 30 LOOP l If there is a problem, an NWS system message will be produced and the appropriate red LED will light on the faceplate of the card.

  • Page 213: Installing The Ddch Daughterboard

    Remove the DDP and DDCH. Installing the DDCH Daughterboard Note 1: Test procedures require a 24-hour minimum bit error-rate testing before being used. Refer to the Nortel Networks technical publication (NTP), ISDN PRI Description and Administration (553-2901-100) for these procedures.
  • Page 214 Note 1: The maximum number of DCHI, MSDL, and DDCH devices in the system is 16. The Device Addresses are equivalent to the MSDL DNUM designations. For programming information on the MSDL, refer to the Nortel Networks technical publications (NTPs) Multi-purpose Serial Data Link description 553-3001-195 and X11 input/output guide.

  • Page 215: Ntrb33 Fiber Junctor Interface Card

    Replacing equipment Page 215 of 250 NTRB33 Fiber Junctor Interface card Use this procedure to replace a Fiber Junctor Interface (FIJI) card. See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages. DANGER Module covers are not hinged;...

  • Page 216: P0699798 Air Filter

    Page 216 of 250 Replacing equipment Install equipment Set the ENB/DIS switch to DIS on the replacement card. Insert the replacement card into the vacated slot and hook the locking devices. Connect cables to the replacement card. Set the ENB/DIS switch to ENB on the replacement card. Software enable and test the FIJI in LD 39: ENL FIJI xx xx is the FIJI group and shelf number, which is...
  • Page 217 Replacing equipment Page 217 of 250 Figure 38 Blower unit and air filter in the front of the pedestal Air filter Blower unit 553-3002 Make sure the plastic tabs will be on the front of the filter (see Figure 39 on page 217). Gently push the filter into the pedestal slot until it seats fully in the back.

  • Page 218: Qpc43 Peripheral Signaling Card

    Page 218 of 250 Replacing equipment Push the grill into a locked position against the pedestal. If there are captive screws on the grill, tighten the screws. QPC43 Peripheral Signaling Card Use this procedure to replace a peripheral signaling card. See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages.
  • Page 219 Replacing equipment Page 219 of 250 Installing equipment Set the ENB/DIS switch to DIS on the replacement card. Set the jumper plug on the replacement card the same as on the card you removed. If there is a vintage change, be sure to check Circuit Card: Installation and Testing (553-3001-211) for any differences.

  • Page 220: Qpc441 Three-Port Extender Card

    Page 220 of 250 Replacing equipment Tag defective equipment with a description of the problem and package it for return to a repair center. Table 6 Peripheral signaling card numbers Group/ Peripheral Loops shelf signaling card disabled/enabled 0 / 0 –...
  • Page 221 Replacing equipment Page 221 of 250 See Administration (553-3001-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages. DANGER Module covers are not hinged; do not let go of the cover. Lift the cover away from the module and set it out of your work area.
  • Page 222 Page 222 of 250 Replacing equipment In Options 51C, 61C, and 81C, if the 3PE card is in the Core/Network Module, you must disable the clock controller card in that module. Check the status of the clock: LD 60 SSCK x “x”...
  • Page 223 Replacing equipment Page 223 of 250 Table 7 Peripheral signaling card numbers Group/ Peripheral Loops shelf signaling card disabled/enabled 0 / 0 – 0 / 1 – 1 / 0 – 1 / 1 – 2 / 0 – 2 / 1 –...
  • Page 224 Page 224 of 250 Replacing equipment You will see ISR043 on the system terminal when the card is disabled. Busy channels will not be disabled until the call is disconnected. Set the ENB/DIS switch on the 3PE to DIS. Tag and disconnect cables to the 3PE. Unhook the locking devices on the card;...

  • Page 225: Qpc471, Qpc775 Clock Controller Card

    Replacing equipment Page 225 of 250 Check the status of the IGS card: LD 39 STAT IGS x “x” is the IGS card number—0 to 19 If the card is still disabled, enable it: ENL IGS xx **** exit LD 39 Check the status of SDI ports: LD 37 STAT...
  • Page 226 Page 226 of 250 Replacing equipment See Option 11C ISDN BRI Hardware Installation and Maintenance (553-3011-311) for a description of all maintenance commands, and System Messages Guide (553-3001-411) for interpreting system messages. DANGER Module covers are not hinged; do not let go of the cover.
  • Page 227 Replacing equipment Page 227 of 250 Set the ENB/DIS switch to DIS on the card you are removing. CAUTION Service Interruption To avoid interrupting service, set ENB/DIS switches to DIS before disconnecting or connecting cables. Tag and disconnect cables to the card you are removing. Unhook the locking devices on the card;...

  • Page 228: Qpc477 Bus Terminating Unit

    Page 228 of 250 Replacing equipment Activate the newly installed card and verify that it is active: LD 60 SWCK SSCK x If applicable, issue a tracking command: TRCK aaa “aaa” is PCK for track primary clock, SCLK for track secondary clock, or FRUN for free run mode Note: Set the clock source to the status it was in before the replacement procedure.

  • Page 229: Qpc659 Dual Loop Peripheral Buffer Card

    Replacing equipment Page 229 of 250 Remove enough cards on both sides of the BTU to access the unit. See Circuit Card: Installation and Testing (553-3001-211) for BTU slot locations. Gently pull the BTU out of the card cage. Insert the replacement BTU into the vacated slot. Reinstall the cards on both sides of the BTU.
  • Page 230 Page 230 of 250 Replacing equipment Removing equipment Software disable the dual loop peripheral buffer: LD 32 DISS l s “l s” are the loop and shelf numbers Set the ENB/DIS switch to DIS. Tag and disconnect cables to the card you are removing. Unhook the locking devices on the card;...

  • Page 231: Qpc841 Serial Data Interface Card

    Replacing equipment Page 231 of 250 Tag defective equipment with a description of the problem and package it for return to a repair center. QPC841 Serial Data Interface Card Use this procedure to replace a serial data interface (SDI) card. See Administration (553-3001-311) for a description of all maintenance commands, and the System Messages Guide (553-3001-411) for interpreting system messages.
  • Page 232 Page 232 of 250 Replacing equipment Unhook the locking devices on the card; pull it out of the card cage. Installing equipment Set the ENB/DIS switch to DIS on the replacement card. Set option switches on the replacement card the same as on the card you removed.

  • Page 233: Nt7D67Cb Pdu

    Page 233 of 250 Replacing an NT7D10 PDU with an NT7D67CB PDU Use this procedure to replace an NT7D10 PDU with an NT7D67CB PDU in DC-powered systems. Note 1: The NT7D67CB PDU replaces the NT7D10 PDU. However, both PDUs can be used in a system. Note 2: Conduit is not required with the NT7D67CB PDU but can be used.
  • Page 234 Page 234 of 250 Replacing an NT7D10 PDU with an NT7D67CB PDU Removing equipment Check the length of existing wire to the PDU. Due to the location of the field wiring terminal block on the NT7D67CB PDU, 6 to 9 inches more length is required to reach its terminals than is required to reach those on the NT7D10 PDU.
  • Page 235 Replacing an NT7D10 PDU with an NT7D67CB PDU Page 235 of 250 Set all five circuit breakers on the PDU to OFF (down). Figure 40 on page 235 shows the NT7D10 PDU in the rear of the pedestal. Figure 40 NT7D10 Power Distribution Unit DC System monitor Circuit breaker bank...
  • Page 236 Page 236 of 250 Replacing an NT7D10 PDU with an NT7D67CB PDU Disconnect the system monitor ribbon cable from the PDU and from the module and set it aside for reconnection with the replacement NT7D67CB PDU. Disconnect the large orange power connector (J1) from the PDU. Note: To disconnect the power plug, you must press a latch trip on the front and rear of the plug.
  • Page 237 Replacing an NT7D10 PDU with an NT7D67CB PDU Page 237 of 250 Installing equipment DANGER The NT7D67CB PDU is much heavier than the NT7D10 PDU. Note: The conduit attachment plate provided in the NT7D0902 Rear Mount Conduit Kit must be installed as a safety cover and to restrain wiring to the terminal block.
  • Page 238 Page 238 of 250 Replacing an NT7D10 PDU with an NT7D67CB PDU Figure 42 NT7D67CB Power Distribution Unit DC System monitor/power supply assembly NT7D10CA FLTR / PWR DIST NT7D67CB UNIT ASSY Safety cover—the field terminal block is behind the cover BLO CB Circuit Circuit...
  • Page 239 Replacing an NT7D10 PDU with an NT7D67CB PDU Page 239 of 250 Connect the green frame ground wire from the PDU to the frame ground bolt inside the pedestal. Guide the power cable connector through the hole in the top of the pedestal.
  • Page 240 Page 240 of 250 Replacing an NT7D10 PDU with an NT7D67CB PDU Figure 43 Field wiring terminals in the NT7D67CB PDU NT7D67CB FLTR / PWR DIST BATRTN BATRTN LRTN UNIT ASSY BLO CB0 CB1 553-5800 Position the conduit attachment plate on the rear of the pedestal (over the newly drilled holes) and secure it with two screws, nuts, and washers.
  • Page 241 Replacing an NT7D10 PDU with an NT7D67CB PDU Page 241 of 250 Tag defective equipment with a description of the problem and package it for return to a repair center. Hardware Replacement...
  • Page 242 Page 242 of 250 Replacing an NT7D10 PDU with an NT7D67CB PDU 553-3001-520 Standard 17.00 January 2002...

  • Page 243: Index

    Page 243 of 250 Index Numerics Battery Pack Assembly removing, 26 3PE (Three-Port Extender) Cards Blower Units in Core Module Card Cage replacement, 136 in PDU replacement, 151, 155, 156, 160, 235, installing, 224 removing, 220 installing, 188 removing, 187 BTU (Bus Terminating Unit) A0321130 Fan Units removing and installing, 228...
  • Page 244 Page 244 of 250 Index CE Power Supply DC, 148 CP (Call Processor) Cards CED system messages in Core Module Card Cage replacement, 130, 3PE Card replacement, 224 Central Office Trunk Cards installing, 53, 57, 207 removing, 165, 166 removing, 52, 206 circuit breakers IPE Module Card Cage replacement, 203, 205 MPDU replacement, 192, 193...
  • Page 245 Index Page 245 of 250 grills, removing, 24 keyboard, telephone dial pad translation, 12 HWI0533 messages in CP Card replacement, 56, 59, LD 11 program, 11 LD 17 program CNI Card replacement, 150 for passwords, 10 LD 21 program, 13 IGM (InterGroup Module), 137 LD 30 program IGS (InterGroup Switch) Cards...
  • Page 246 Page 246 of 250 Index LD 39 program login procedures, 10 3PE Card replacement, 223, 225 IGS Card replacement, 215, 216 LD 41 program, 11 maintenance mode, 13 LD 42 program, 11 maintenance telephones, 11 LD 43 program memory shadowing, 151 CNI Card replacement, 150 Memory/Peripheral Signaling Cards, 173 maintenance telephones for, 11...
  • Page 247 Index Page 247 of 250 NT5K10 Dual Loop Peripheral Buffer Card (IDLB), NT8D04 Superloop Network Cards installing, 169 installing, 143 removing, 168 removing, 142 NT8D06 Power Supply AC NT5K1106 Enhanced Peripheral Equipment Card installing, 170 Cage, 143, 146 removing, 169 installing, 145 NT8D09 Intelligent Peripheral Equipment Cards removing, 144, 147...
  • Page 248 Page 248 of 250 Index NT8D46DC Air Probe Harnesses installing, 185 P0699798 Air Filters removing, 182 installing, 216 NT8D52AB Pedestal Blower Units removing, 216 installing, 188 P0741489 Extraction Tool, 18 removing, 187 packaging, 16 NT8D52DD Pedestal Blower Units Paddle Boards installing, 188 installing, 176 removing, 187...
  • Page 249 Index Page 249 of 250 QPC414 Network Cards replacing installing, 169 NT1P61 Fibre Superloop Network cards, 26 removing, 168 NT1P62 Fibre Peripheral Controller card, 28 QPC441 Three-Port Extender Cards Ringing Generators installing, 224 AC, 169 removing, 220 DC, 148 QPC471 Clock Controller Cards installing, 227 removing, 226 SBE (Segmented Bus Extender) Cards...
  • Page 250 Page 250 of 250 Index TDS system messages, 173 telephone dial pad, keyboard translation, 12 Thermostat Harnesses installing, 180 removing, 177 Tone Detector Cards removing, 165 tones, testing, 11 top caps in Air Probe Harness replacement, 183, 185 in Thermostat Harness replacement, 177, 181 translation, keyboard to telephone dial pad, 12 Trunk Cards installing, 167...
  • Page 252 SL-1 and Meridian 1 are trademarks of Nortel Networks. Intel and Pentium are trademarks of Intel Corporation. cPCI is a trademark of PCI Industrial Computer Manufacturers Group.

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