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Cisco ONS 15454 SDH Product Overview

Card Slots and Types

Cisco ONS 15454 SDH Product Overview, R3.4

September 2002

User-Defined Alarms

The AIC-I card provides input/output alarm contact closures. You can define up

to sixteen external alarm inputs and four external, user-configurable, alarm

inputs/outputs. The physical connections are made using the MIC-A/P. The

alarms are defined using CTC and TL1. LEDs on the front panel of the AIC-I

indicate the status of the alarm lines.

Orderwire

Orderwire allows a craftsperson to plug a phoneset into an ONS 15454 SDH and

communicate with craftspeople working at other ONS 15454 SDHs or other

facility equipment. The ONS 15454 SDH supports up to four orderwire channel

terminations per shelf. The orderwire ports are standard RJ-11 receptacles.

The AIC-I allows simultaneous use of both local (section overhead signal) and

express (line overhead channel) orderwire channels on a SONET/SDH ring or

particular optics facility. Express orderwire also allows communication via

regeneration sites when the regenerator is not a Cisco device. Orderwire is

provisioned from the CTC network view Provisioning > Overhead Circuits tabs.

User Data Channel

The user data channel (UDC) features four dedicated data channels. Each AIC-I

card supports the following UDCs:

• Two F-UDCs, carried by the F1 byte of the regenerator section of the SDH

overhead. Each F-UDC provides a 64 KBit/s (kbps) point-to-point connection

between two nodes in an ONS 15454 SDH network. The F-UDCs are

connected to the AIC-I through two RJ-11 connectors on the front panel.

• Two MS-UDCs, carried by the D4 to D12 bytes of the multiplex section of

the SDH overhead. The MS-UDC provides one 576 KBit/s (kbps)

point-to-point connection between two nodes in an ONS 15454 SDH

network. Each UDC can be routed to an individual and separate optical

interface on the ONS15454 SDH system. The MS-UDCsare connected to the

AIC-I through RJ-45 connectors on the front panel.

All of the UDCs are provisioned from the CTC network view Provisioning >

Overhead Circuits tabs.

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