Cisco Systems 3545 PRI Data Interface Cable Pin-out Configurations, Signal Name, Mnemonic, 2-22

Chapter 2 Installing the Cisco Unified Videoconferencing 3545 Gateway

Serial Gateway Cable Connections and Pin-outs

Data Interface Cable Pin-out Configurations

Table 2-7describes the data interface pin-out configuration for the serial gateway cables.

Table 2-7	Serial Gateway Data Interface Cable Pin-out
Signal Name		Mnemonic				EIA-530 LOS (DB-25) DTE only	EIA-530A LOS (DB-25) DTE only
			KIV-7 (DB-37) DTE only	EIA-449 (DB-37)	EIA-530 (DB-25)			V.35 (M-34)
Shield		—	1	1	1	1	1	A
Transmit Data		TXD A	2	4	2	2	2	P
Transmit Timing		TXC A	15	5	15	15	15	Y
Receive Data		RXD A	3	6	3	3	3	R
Request To Send		RTS A	4	7	4	4	4	C
Receive Timing		RXC A	17	8	17	17	17	V
Clear To Send		CTS A	5	9	5	5	5	D
Data Set Ready		DSR A	6	11	6	6	6	E
Data Terminal ready		DTR A	20	12	20	20	20	H
Carrier Detect		DCD A	8	13	8	8	8	F
Terminal Timing		TT A	24	17	24	24	24	U
Signal Ground		—	27	19	7	7	7	B
Transmit Data		TXD B	14	22	14	14	14	S
Transmit Timing		TXC B	12	23	12	12	12	AA
Receive Data		RXD B	16	24	16	16	16	T
Request To Send		RTS B	19	25	19	19	19	—
Receive Timing		RXC B	9	26	9	9	9	X
Clear To Send		CTS B	13	27	13	13	13	—
Data Set Ready		DSR B	22	29	22	22	—	—
Data Terminal ready		DTR B	23	30	23	23	—	—
Carrier Detect		DCD B	10	31	10	10	10	—
Terminal Timing		TT B	11	35	11	11	11	W
Local Loopback		LL	—	10	18	—	18	L, K
Remote Loopback		RLB	—	14	21	—	21	N
Loss of Sync		LOS unbalanced	31	36	—	—	—	—
Loss of Sync		LOS A	—	3	—	18	—	—
Loss of Sync		LOS B	—	21	—	21	—	—

	Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.6
2-22	OL-17011-01