Cisco Systems RJ-21X Pinouts and Cable Specifications for Cisco VG350 Analog Voice Gateway

Appendix A Cable Specifications and Information

Analog Voice Multiport Pinouts (RJ-21X/CA21A)

Analog Voice Multiport Pinouts (RJ-21X/CA21A)

Figure A-5shows the RJ-21 connector wiring for the cable used for the multiport analog voice interface.

Figure A-5 RJ-21 Connector Wiring

1	25
26	50

36484

RJ-21 cable RJ-21 connector

Table A-6lists the pinouts for the RJ-21 connector.

Table A-6	RJ-21 Connector Pinouts
Port	Connector Pin		Port	Connector Pin
Number	Number	Signal	Number	Number	Signal
1	1	Ring	13	13	Ring
	26	Tip		38	Tip
2	2	Ring	14	14	Ring
	27	Tip		39	Tip
3	3	Ring	15	15	Ring
	28	Tip		40	Tip
4	4	Ring	16	16	Ring
	29	Tip		41	Tip
5	5	Ring	17	17	Ring
	30	Tip		42	Tip
6	6	Ring	18	18	Ring
	31	Tip		43	Tip
7	7	Ring	19	19	Ring
	32	Tip		44	Tip
8	8	Ring	20	20	Ring
	33	Tip		45	Tip
9	9	Ring	21	21	Ring
	34	Tip		46	Tip
10	10	Ring	22	22	Ring
	35	Tip		47	Tip
11	11	Ring	23	23	Ring
	36	Tip		48	Tip

Cisco VG350 Voice Gateway Hardware Installation Guide

A-6 OL-25970-01