Cables And Cabling Procedure - 3Com VCX v7111 Installation Manual

Cables and Cabling Procedure

Cable your VCX V7111 according to each section of Table 6 on page 20.
Cables and Cabling Procedure
Table 6
Cable Cabling Procedure
When initializing (connecting the VCX V7111 to the LAN for the first time) use a
standard Ethernet cable to connect the network interface on your computer to a port
on a network hub / switch. Use a second standard Ethernet cable to connect the VCX
RJ-45 Ethernet
V7111 to another port on the same network hub / switch.
cable
For normal use, connect the 10/100 Base-T RJ-45 Ethernet port directly to the IP
network, using a standard Ethernet cable. For connector's pinout see Figure 8 on
page 21.
Connect the RJ-11 connectors on the rear panel of
the 2, 4, or 8FXS to fax machine, modem, or phones
(see Figure 9 on page 21).
Connect the RJ-11 connectors on the 4 or 8FXO rear
RJ-11 two-wire
panel to telephone exchange analog lines or PBX
telephone cords
extensions (Figure 9 on page 21).
24FXS ports are usually distributed using an MDF Adaptor Block (special order
option). See Figure 11 on page 22 for details.
1
2
50-pin Telco cable
(24FXS devices
only).
3
An Octopus
cable is not
4
included with
the 24FXS
package.
5
Connect the RS-232 port to your PC's RS-232 port with a straight serial cable. Using
RS-232 serial cable
the RS-232 port is optional.
Connect an earthed strap to the chassis protective earthing screw and fasten it
Protective earthing
securely according to the safety standards.
strap
Connect the VCX V7111 100-250V~ 50-60 Hz power socket to the mains.
AC Power cable
See Figure 12 on page 23. Insert two 18 AWG wires into the supplied DC terminal
DC Power cable
block and fasten the two screws located directly above each wire. Insert the DC
(24FXS devices
terminal block into the DC inlet on the 24FXS rear panel and fasten it with the two
only)
adaptor-to-panel screws. Connect the other end of the cable to a 48 VDC power
supply.
20
Wire the 50-pin Telco connectors according to the pinout in Figure 10 on page
21, and Table 7 on page 22.
Attach each pair of wires from a 25-pair Octopus cable to its corresponding
socket on the MDF Adaptor Block's rear.
Connect the wire-pairs at the other end of the cable to a male 50-pin Telco
connector.
Insert and fasten this connector to the female 50-pin Telco connector on the
24FXS rear panel (labeled Analog Lines 1-24).
Connect the telephone lines from the Adaptor Block to a fax machine, modem, or
telephones by inserting each RJ-11 connector on the 2-wire line cords of the
POTS phones into the RJ-11 sockets on the front of an MDF Adaptor Block as
shown in Figure 11 on page 22.
Ensure that FXS/FXO are
connected to the correct
devices, otherwise damage
can occur.
3Com VCX V7111 Fast Track Installation Guide