A-6
Cisco VG350 Voice Gateway Hardware Installation Guide
OL-25970-01
Appendix A Cable Specifications and Information
Analog Voice Multiport Pinouts (RJ-21X/CA21A)
Analog Voice Multiport Pinouts (RJ-21X/CA21A)
Figure A-5
shows the RJ-21 connector wiring for the cable used for the multiport analog voice interface.
Figure A-5
RJ-21 Connector Wiring
Table A-6
lists the pinouts for the RJ-21 connector.
3
64
8
4
RJ-21 cable
RJ-21 connector
1
25
50
26
Table A-6
RJ-21 Connector Pinouts
Port
Number
Connector Pin
Number
Signal
Port
Number
Connector Pin
Number
Signal
1
1
26
Ring
Tip
13
13
38
Ring
Tip
2
2
27
Ring
Tip
14
14
39
Ring
Tip
3
3
28
Ring
Tip
15
15
40
Ring
Tip
4
4
29
Ring
Tip
16
16
41
Ring
Tip
5
5
30
Ring
Tip
17
17
42
Ring
Tip
6
6
31
Ring
Tip
18
18
43
Ring
Tip
7
7
32
Ring
Tip
19
19
44
Ring
Tip
8
8
33
Ring
Tip
20
20
45
Ring
Tip
9
9
34
Ring
Tip
21
21
46
Ring
Tip
10
10
35
Ring
Tip
22
22
47
Ring
Tip
11
11
36
Ring
Tip
23
23
48
Ring
Tip