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 fan-tray assembly 15454-FTA3 or 15454-CC-FTA,
which comes preinstalled on the shelf assembly (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 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.
You can replace the AIP on an in-service system without affecting traffic (except Ethernet traffic on nodes
running a software release earlier than 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.
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, do not change any
hardware or repair circuits until after the software upgrade is complete. Replace an AIP during a maintenance
window. Resetting the active TCC2/TCC2P card can cause a service disruption of less then 50 ms to optical
or electrical traffic. Resetting the active TCC2/TCC2P card causes a service disruption of three to five
minutes on all E-Series Ethernet traffic due to spanning tree reconvergence. Refer to the Cisco ONS 15454
Troubleshooting Guide for an AIP replacement procedure.
Electrical Interface Assemblies
Optional EIA backplane covers are typically preinstalled when ordered with the ONS 15454. EIAs must be
ordered when using DS-1, DS-3, DS3XM, or EC-1 cards. This section describes each EIA.
Six different EIA backplane covers are available for the ONS 15454: BNC, High-Density BNC, MiniBNC,
SMB, AMP Champ, UBIC-H (Universal Backplane Interface Connector-Horizontal), and UBIC-V
(Vertical). If the shelf was not shipped with the correct EIA interface, you must order and install the correct
EIA.
EIAs are attached to the shelf assembly backplane to provide electrical interface cable connections. EIAs are
available with SMB and BNC connectors for DS-3 or EC-1 cards. EIAs are available with AMP Champ
connectors for DS-1 cards. You must use SMB EIAs for DS-1 twisted-pair cable installation. UBIC-V EIAs
have SCSI connectors. They are available for use with any DS-1, DS-3, or EC-1 card, but are intended for
use with high-density electrical cards.
Note: The MiniBNC EIAs only support cables using the Trompetor connectors for termination.
You can install EIAs on one or both sides of the ONS 15454 backplane in any combination (in other words,
AMP Champ on Side A and BNC on Side B or High-Density BNC on Side A and SMB on Side B, and so
ONS_15454_Reference_Manual_R8.5.x_--_Shelf_and_Backplane_Hardware
Alarm Interface Panel 14
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