Centrepoint Technologies TalkSwitch, User Manual

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Option 3 - Connect 2 units together via an Ethernet cross-over cable.
If you plan to network only two TalkSwitch units, it is possible to network them via a
LAN crossover cable.
Connect the two TalkSwitch units with a crossover cable. Make sure you are using a
crossover cable and not a regular LAN cable - see diagram below for details on how
to verify a crossover cable.
Make sure a computer is connected to the phone system either via the USB or Serial
port.
14 TalkSwitch User Manual
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Straight through cable:
Notice how both ends are identical
Crossover cable:
The ends are different. Pins 1 & 3 are
reversed, and pins 2 & 6 are reversed.
TalkSwitch (unit ID 1)
TalkSwitch (unit ID 2)
Crossover Cable