Alarm Interface Panel; Alarm Interface Panel Replacement; Ntp-G3 Open And Remove The Front Door - Cisco ONS 15454 Hardware Installation Manual

Alarm Interface Panel

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 ANSI. 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).
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/TCC3 cards in the ONS 15454 ANSI
also use the MAC address to store the node database.
Note
The 5-A AIP (73-7665-XX) is required when installing fan-tray assembly 15454-FTA3 or 15454-CC-FTA,
which comes preinstalled on the shelf (15454-SA-ANSI or 15454-SA-HD).
Note
A blown fuse on the AIP board can cause the LCD display to go blank.

Alarm Interface Panel Replacement

If the 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 the Cisco Technical
Assistance Center (Cisco TAC). For contact information, see the
and Security Guidelines, on page
You can replace the AIP on an in-service system without affecting traffic (except Ethernet traffic on nodes
running a release earlier than Software Release 4.0). The circuit repair feature allows you to repair circuits
affected by MAC address changes on one node at a time. Circuit repair works when all nodes are running the
same software version. Each individual AIP upgrade requires an individual circuit repair; if AIPs are replaced
on two nodes, the circuit repair must be performed twice. Always replace an AIP during a maintenance
window.
Caution
Do not use a 2-A AIP with a 5-A fan-tray assembly; doing so causes a blown fuse on the AIP.
Note Ensure that all nodes in the affected network are running the same software version before replacing the AIP
and repairing circuits. If you need to upgrade nodes to the same software version, no hardware should be
changed or circuit repair performed until after the software upgrade is complete.

NTP-G3 Open and Remove the Front Door

Purpose
Cisco ONS 15454 Hardware Installation Guide
56
xxix.
This procedure opens and removes the front door to access the equipment.
Installing the ONS 15454 M12 (ANSI and ETSI) Shelf
Obtaining Documentation, Obtaining Support,