3Com v6100 Installation Manual page 14

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2
Connect the E1/T1 trunk cables to the ports on the I/O module/s. Connect the other ends
of the trunk cables to your PBX/PSTN switch.
For a 1+1 or 2+2 fallback option, connect trunks 1 and 3 to your PBX and trunks 2 and 4
to the PSTN. If the power fails, a relay connects trunks 1 to 2 and 3 to 4 (in the same
module) acting as a fallback for PSTN trunks.
To protect against electrical shock and fire, use a 26 AWG min wire to connect
T1 or E1 ports to the PSTN.
RJ-48c trunk connectors are wired according to
Figure 2
Pinout of the RJ-48c Trunk Connectors
RJ-48c Connector and Pinout
1 2 3 4 5 6 7 8
1 = Rx RING
2 = Rx TIP
4 = Tx RING
5 = Tx TIP
3
Connect the first Ethernet connection (labeled I), located on the CPU module of the
V6100 front panel, directly to the network using a standard RJ-45 Ethernet cable (and
the second connection as optional redundancy / backup). Note that for redundant
operation it is recommended to connect each of the Ethernet connectors to a different
switch. For the connector's pinout, refer to
When assigning an IP address to the V6100 using HTTP (under
IP Address Using
HTTP), you may be required to disconnect this cable and re-cable it
differently.
Figure 3
RJ-45 Ethernet Connector Pinout
1 2 3 4 5 6 7 8
4
Using the supplied RS-232 cable connect the V6100 RS-232 port (Labeled I0I0) to either
COM1 or COM2 RS-232 communication port on your PC. Using the RS-232 port is
optional.
5
If you want to set up a dry contact system (future support), refer to the V6100 Digital
Gateway User Guide.
6
If you want to set up an audio system (future support), refer to the V6100 Digital
Gateway User Guide.
7
Connect the left (active) 100-240V~50-60 Hz power socket to the mains using the
supplied cord.
14
3, 6, 7, 8
not connected
body = shield
1 - Tx+
4, 5, 7, 8
2 - Tx-
not
3 - Rx+
connected
6 - Rx-
Figure
2.
Figure
3.
Step 1
V6100 Digital Gateway Installation Guide
in
Assigning an

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