A-7
Cisco VG350 Voice Gateway Hardware Installation Guide
OL-25970-01
Appendix A Cable Specifications and Information
Analog Voice Multiport Pinouts (RJ-21X/CA21A)
12
12
37
Ring
Tip
24
24
49
Ring
Tip
—
—
—
—
25, 50, 51, 52
GND
Table A-6
RJ-21 Connector Pinouts (continued)
Port
Number
Connector Pin
Number
Signal
Port
Number
Connector Pin
Number
Signal