Circuit card replacement

All circuit cards can be replaced on site. The system must be powered down in order to replace or add a circuit card.

Replacing circuit cards

To replace a circuit card:

1. Verify that the replacement equipment is on site and appears to be in usable condition, with no obvious shipping damage.
2. Verify that the replacement circuit card is of the same type as the card you are replacing.
3. Remove the old circuit card.
4. Install the new circuit card.
5. Verify new card operation.

Remove the old circuit card

To remove a faulty circuit card:

1. Shut down the system and unplug the AC power cords.
2. Remove the front bezel and top cover.
3. Remove the circuit card hold-down bracket.
4. Locate the circuit card you want to remove. As you face the back of the machine, the circuit cards are:
• MSS-S or MSS-H: See MSS standard configuration (back view) or MSS high-availability configuration (back view).
  • Video card (closest to the power supply)
  • Network interface card (NIC)
  • MSS-H only: SCSI RAID controller card
  • Remote maintenance board (RMB)
• MAS: See Messaging Application Server (back view).
  • Video card (closest to the power supply)
  • Network interface card (NIC)
  • Up to 5 port boards, typically starting from the right-hand side of the chassis. These include:
    • Digital Set Emulation (DSE) switch integration card
    • Analog port board (4- and 12-port versions support tip/ring or fax capability)
    • T1 or E1 boards (support high-line capacities for QSIG switch integration)
5. Remove any exterior cables connected to the circuit card you want to replace. These include:
   • Video card monitor cable
   • NIC LAN cable
   • MSS-S or MSS-H: RMB modem and COM cables
   • MAS: Any port board line cables

Note: Label the cables so you can easily reconnect them. See Chapter 2 of the Installation Guide (pdf) for cabling diagrams if needed.

6. Remove any interior cables connected to the circuit card you want to replace. These include:
   • MSS-S or MSS-H: RMB ribbon cable to the fans, power supply, and reset switch. See MSS standard configuration (internal view).
   • MSS-H: SCSI RAID controller ribbon cable and SCSI LED cable. See MSS high-availability configuration (internal view).
   • MAS: Computer Telephony (CT) bus cable connecting the port boards. See Messaging Application Server (internal view).
7. Unscrew the retaining screw that attaches the circuit card to the chassis. Set it aside.
8. Lift the circuit card out. See Replacing a circuit card.

   Note: For the video card, you must release the safety catch at the rear of the board before you can lift it out.

Install the new circuit card

To install a new circuit card:

1. Seat the new circuit card in the correct slot.

   Note: For the video card, hold open the safety catch until the card is seated, then release it to lock the board in place.

Caution! For an MAS, makes sure that you are replacing the circuit card with one of the same type. You cannot mix board types (such as analog tip/ring with DSE or T1/E1) within a single Messaging Application Server.

2. Reattach any interior cables.
• For the RMB, reconnect the ribbon cable to the 10-pin connector near the top rear of the board.
• For a SCSI RAID controller card:
  • Reconnect the ribbon cable to the upper edge connector near the faceplate.
  • Reconnect the SCSI LED cable to the 2 pins closest to the faceplate on the 8-pin connector near the upper edge of the board.
• For an MAS, reattach the CT cable to all port boards.
3. Reattach any exterior cables. See Chapter 2 of the Installation Guide (pdf) for cabling diagrams if needed.

Note: For a rack-mount configuration, you may not have enough slack to plug in the exterior cables until you slide the machine back into the cabinet.

4. Replace and tighten the retaining screw to hold the circuit card in place. See Replacing a circuit card.
5. Replace the circuit card hold-down bracket.
6. Replace the top cover and front bezel.
7. Restore power to the system.

Verify new circuit card operation

To verify that the new circuit card is working:

1. If you replaced one of the following cards, perform the verification checks as noted:
   • Video card: After the system boots:
     • Bring up a GUI application, such as the web interface to this product.
     • Verify that the application displays correctly.
   • NIC LAN cable: After restoring power to the system:
     • Ping the address of the new card through the network.
     • Verify that the new card is present and answering.
   • MSS-S or MSS-H: RMB card:
     • After the system boots, test RMB functionality (for example, call in to the board, and run standard inquiries).
     • See the Remote Maintenance Board (RMB) CYN23AP and CYN24AP PCI Version Release 1.0 Reference (585-310-263, 2.8 MB pdf) for more information. This document is available to certified personnel through the Avaya web site.
   • MSS-H: SCSI RAID controller card:
     • After the system boots, verify that the application software loads correctly.
   • MAS: Any Dialogic port boards:
     • After the system boots, configure and test the new board as described in Chapter 4 of the Installation Guide (pdf).
2. Verify that the circuit pack alarms are resolved. See Alarms for more information.

Top of page