Central Office Alarm Interface - Cisco ASR 5500 Installation Manual

Technical Specifications

Central Office Alarm Interface

The Central Office (CO) alarm interface on the SSC is a DB15 connector that supports three dry-contact relay switches.
Each of the Form C relays is rated to support a maximum switching current of 1A@30VDC.
Caution:
flashing incandescent lamps.
The three relays support both normally-open (NO) and normally-closed (NC) devices. For additional information, refer
to the SSC Alarm Cabling chapter for details.
Chassis Grounding
The ASR 5500 is suitable for installation as part of the Common Bonding Network (CBN) within a network
telecommunications facility. It is not intended for installation in an Isolated Bonding Network (IBN).
The alarm relay contacts should never be connected to high current draw devices, such as sirens or
Central Office Alarm Interface ▀
ASR 5500 Installation Guide ▄
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