Analog Voice Multiport Pinouts (Rj-21X/Ca21A) - Cisco 450 Hardware Installation Manual

Cable Specifications and Information
Figure 6: RJ-45 Connector Wiring
Table 10: Gigabit Ethernet Port Pinouts (RJ-45)
6
Pin
1
2
3
4
5
6
7
8
6

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.
Signal
TX+
TX–
RX+
–
–
RX–
–
–
Any pin not referenced is not connected.
Analog Voice Multiport Pinouts (RJ-21X/CA21A)
Cisco 450 Voice Gateway Hardware Installation Guide
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