Cisco Cisco Packet Data Gateway (PDG) Guía De Instalación
Technical Specifications
▀ Central Office Alarm Interface
▄ ASR 5500 Installation Guide
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Central Office Alarm Interface
The Central Office (CO) alarm interface on the SSC is a DB15 connector that supports three dry-contact (no voltage
supplied) relay switches. Each of the Form C relays is rated to support a maximum switching current of 1A@30VDC.
supplied) relay switches. Each of the Form C relays is rated to support a maximum switching current of 1A@30VDC.
Caution:
The alarm relay contacts should never be connected to high current draw devices, such as sirens or
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.
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).
telecommunications facility. It is not intended for installation in an Isolated Bonding Network (IBN).