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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 
21
Connecting 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
 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