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GuestWorks and DEFINITY ECS Release 9
Technician Handbook for Hospitality Installations
555-231-743
Issue 1
November 2000
Installing the System
21Connecting the Hospitality Adjuncts
The C-LAN circuit pack ethernet lead designations are as follows:
Use this information when making connections from the using a 259A adapter
(single-port), a 356A adapter (8-port harmonica), a 258B adapter (6-port
harmonica), or standard cross-connect wiring. When using the 356A or 258B
adapters, you must always connect to jack #1 of the adapter.
Crossover Wiring
If the standard crossover cord or the optional hub/router are not available, you can
build your own crossover wiring arrangement to flip the transmit and receive leads
for the LAN connection. Figure 5 shows how this can be done with a 104A
connecting block (comcode 105164859). When using this device, the distance
limit from the switch to the INTUITY system is 328 feet (100 meters). Using this
device, you would connect one Category 5 modular cord to the switch C-LAN
circuit pack, and another Category 5 modular cord to the INTUITY LAN card.
Figure 5. Alternate Crossover Wiring
Lead
Name
25-Pair Cable
Wire Color
25-Pair
Cable
Connector
Pin-out
RJ45
Jack
Pin-out
Terminal Block
Pin-out on
Connecting Block
TD+ white/orange 27 1 3
TD- orange/white 2 2 4
RD+ white/green 28 3 5
RD- green/white 3 6 6
RJ45
RJ45
6
5
4
3
6
5
4
3
RD-
RD+
TD-
TD+
RD-
RD+
TD-
TD+
104A Connecting
Block