Cisco Systems 545 Serial manual Signaling Interface Cable Pin-out Configuration

Chapter 2 Installing the Cisco Unified Videoconferencing 3545 Gateway

Serial Gateway Cable Connections and Pin-outs

Signaling Interface Cable Pin-out Configuration

Table 2-8describes the signaling interface pin-out configuration for the serial gateway cables.

Table 2-8	Serial Gateway Signaling Interface Cable Pin-out
Signal Name		Mnemonic	RS-366 (DB-25)
Shield		—	1
Digit Present		DPR	2
Abandon Call & Retry		ACR	3
Call Request		CRQ	4
Present Next Digit		PND	5
Power Indication		PWI	6
Signal Ground		—	7
Distant Station		DSC	13
Connection
Digit Signal Circuit 1		NB1	14
Digit Signal Circuit 2		NB2	15
Digit Signal Circuit 4		NB4	16
Digit Signal Circuit 8		NB8	17
Receive Common		RC	18
Send Common		SC	19
Data Link Occupied		DLO	22

	Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.5
OL-14912-01		2-25