3Com VCX v7111 Installation Manual page 21

Safety Notice
When installing the DC power supply on the VCX V7111 24FXS, be sure to
implement the following safety instructions:
Connect the unit to a SELV source sufficiently isolated from the mains.
Connect the unit permanently to earth via its earthing stud.
RJ-45 Ethernet Connector Pinout
Figure 8
RJ-45 Connector and Pinout
1 2 3 4 5 6 7 8
1 - Tx+
2 - Tx-
3 - Rx+
6 - Rx-
RJ-11 Phone Connector Pinout
Figure 9
RJ-11 Connector and Pinout
1 2 3 4
1 -
2 -
3 -
4 -
50-pin Telco Connector (24FXS only)
Figure 10
Pin Numbers
25
50
3Com VCX V7111 Fast Track Installation Guide
4, 5, 7, 8
not
connected
Not connected
Tip
Ring
Not connected
1
26
21