3Com VCX V7111 VoIP SIP Gateways User Manual 21The VCX V7111 is installed on a desk or shelf without additional brackets.To connect the cables, see “Cable Connections” on page 21.Cable ConnectionsThe RJ-45 (Ethernet) and RJ-11 (Ports) pinouts and connectors are shown in Figure 8, andpins are numbered from the left with the latching finger position at the bottom.Figure 8 RJ-45 LAN and RJ-11 Port Connectors and Pinouts1 2 3 4 1 -2 -3 -4 -Not connectedRJ-11 Connector and PinoutNot connectedTipRing1 2 3 4 5 6 7 8RJ-45 Connector and Pinout4, 5, 7, 8notconnected1 - Tx+2 - Tx-3 - Rx+6 - Rx-To connect the cables for desktop or rack-mount, follow these steps:1 Perform one of the following:a) When using a 4FXS or 8FXS Gateway, insert each of the RJ-11 connectors on the 2-wire line cords of the POTS phones into the RJ-11 sockets on the rear of theGateway.b) When using a VCX V7111 FXO Gateway, insert each of the RJ-11 connectors on the2-wire line cords coming from PSTN/PBX into the RJ-11 sockets on the rear of theGateway.Telephone lines and extensions of up to 7,300 m (24,000 ft) can be achieved usingregular 24 AWG line cord.2 Insert the RJ-45 connector on the 10/100 Base-T cable from your LAN to the ETH RJ-45socket (on the rear of the VCX V7111) to provide the link to your LAN.3 Connect the VCX V7111 Gateway to the correct AC power supply, and the installation isnow complete.Installation of the VCX V711 FXS Life Line8FXS and 4FXS Gateways provide a Life Line connection on port 4.The VCX V7111 2FXS Gateway provides a Life Line connection on port 2.The 24 FXS and VCX V7111 FXO Gateways do not support the Life Line.
