Figure 1-12 Installing The Plastic Rear Cover With Spacers; Alarm Interface Panel - Cisco ONS 15454 Reference Manual

Chapter 1 Shelf and Backplane Hardware
Figure 1-12

1.4.3 Alarm Interface Panel

The AIP is located above the alarm contacts on the lower section of the backplane. The AIP provides
surge protection for the ONS 15454. It also provides an interface from the backplane to the fan-tray
assembly and LCD. The AIP plugs into the backplane using a 96-pin DIN connector and is held in place
with two retaining screws. The panel has a nonvolatile memory chip that stores the unique node address
(MAC address).
Note The MAC address identifies the nodes that support circuits. It allows Cisco Transport Controller (CTC)
to determine circuit sources, destinations, and spans. The TCC2/TCC2P cards in the ONS 15454 also
use the MAC address to store the node database.
The 5-A AIP (73-7665-XX) is required when installing the new fan-tray assembly (15454-FTA3), which
comes preinstalled on the shelf assembly (15454-SA-ANSI or 15454-SA-HD).
A blown fuse on the AIP board can cause the LCD display to go blank.
Note
1.4.4 Alarm Interface Panel Replacement
If the alarm interface panel (AIP) fails, a MAC Fail alarm appears on the CTC Alarms menu and/or the
LCD display on the fan-tray assembly goes blank. To perform an in-service replacement of the AIP, you
must contact Cisco Technical Assistance Center (TAC). For contact information, go to the TAC website
at http://www.cisco.com/tac.
OL-9217-01
Installing the Plastic Rear Cover with Spacers
1.4 1.4.3 Alarm Interface Panel
Cisco ONS 15454 Reference Manual, R7.0.1
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