Cisco ONS 15454 Hardware Installation Manual page 116

Installing the ONS 15454 M12 (ANSI and ETSI) Shelf
ONS 15454 ANSI Alarm Expansion Panel
Figure 44: AEP Printed Circuit Board Assembly
The following figure shows the AEP block diagram.
Figure 45: AEP Block Diagram
Each AEP alarm input port has a provisionable label and severity. The alarm inputs have optocoupler isolation.
They have one common 32-VDC output and a maximum of 2 mA per input. Each opto-metal oxide
semiconductor (MOS) alarm output can operate by definable alarm condition, a maximum open circuit voltage
of 60 VDC, and a maximum current of 100 mA. See the "External Alarms and Controls" section of the "Install
the Control Cards" chapter in the Cisco ONS 15454 DWDM Configuration Guide for further information.
The following figure shows the wire-wrapping connections on the shelf backplane used to connect to the AEP.
Cisco ONS 15454 Hardware Installation Guide
86