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Power Connector
Both the standard straight-through and crossover Ethernet cables should be Category 5
Note
UTP (RJ-45) cables. These cables are available commercially.
Power Connector
Figure B-1 shows the eight-pin power connector on the rear panel of the Cisco CVA122/CVA122E
Cable Voice Adapter, and Table B-2 lists each power signal.
Figure B-4
1
5
Table B-2
USB Connector and Cabling
The USB port on the Cisco CVA122/CVA122E Cable Voice Adapter uses the standard device (type "B")
receptacle required by the Universal Serial Bus Specification Revision 1.1. Table B-3 lists the signals
used on the USB port.
Table B-3
Cisco CVA122/CVA122E Hardware Installation Guide
B-4
Cisco CVA120 Series Power Connector
2
3
4
6
7
8
Power Connector Specifications
Pin Number
Power Signal
1
-56VDC
2
-30VDC
3
Return Ground
4
(not connected)
5
(not connected)
6
(not connected)
7
Return Ground
8
+5VDC
USB Connector Specifications
Pin Number
Signal Name
1
VBUS
2
D-
3
D+
4
GND
Shell
Shield
Appendix B
Connector and Cable Specifications
Description
Power (red)
Signal (white)
Signal (green)
Power Ground (black)
Shield (drain wire)
OL-0799-02 (05/2001)
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Troubleshooting
