3Com VCX V7111 VoIP SIP Gateway User Manual 31Figure 13 2FXS Wall MountCabling the VCX V7111Verify that you have the cables listed under column ‘Cable’ in Table 9 before beginning tocable the VCX V7111 according to the column ‘Cabling Procedure’. For detailed informationon the VCX V7111 rear panel connectors, see VCX V7111 Rear Panel on page 23.Table 9 Cables and Cabling ProcedureCable Cabling ProcedureRJ-45 EthernetcableWhen initializing (connecting the VCX V7111 to the network for the first time) use astandard Ethernet cable to connect the network interface on your computer to a port ona network hub / switch. Use a second standard Ethernet cable to connect the MP-1xx toanother port on the same network hub / switch.For normal use, connect the VCX V7111 Ethernet connection directly to the network,using a standard RJ-45 Ethernet cable. For connector pinout, see Figure 14 onpage 32.Connect the RJ-11 connectors on the rear panel of the VCXV7111/FXS to fax machine, modem, or phones (see Figure 15).Connect RJ-11 connectors on the VCX V7111/FXO rear panel totelephone exchange analog lines or PBX extensions (seeFigure 15).Ensure that FXS &FXO are connected tothe correct devices,otherwise damagecan occur.RJ-11 two-wiretelephone cords24FXS ports are usually distributed using an MDF Adaptor Block (special order option).See Figure 17 for details.Lifeline cable For detailed information on setting up the Lifeline, see the procedure under Cabling theLifeline Phone on page 35.50-pin Telcocable (24FXSdevices only).Wire the 50-pin Telco connectors according to the pinout in Figure 16 onpage 33, and Figure 17 on page 33.Attach each pair of wires from a 25-pair Octopus cable to its corresponding socket on