Avaya 555-231-743 manual Pin-out, Crossover Wiring

GuestWorks and DEFINITY ECS Release 9	Issue 1
Technician Handbook for Hospitality Installations 555-231-743	November 2000
Installing the System
Connecting the Hospitality Adjuncts	21

The C-LAN circuit pack ethernet lead designations are as follows:

		25-Pair	RJ45	Terminal Block
Lead	25-Pair Cable	Cable
			Jack	Pin-out on
Name	Wire Color	Connector
			Pin-out	Connecting Block
		Pin-out
TD+	white/orange	27	1	3
TD-	orange/white	2	2	4
RD+	white/green	28	3	5
RD-	green/white	3	6	6

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.

104A Connecting

Block

RD- 6 RD+ 5 TD- 4 TD+ 3

6RD-

5RD+

4TD-

3TD+

RJ45 RJ45

Figure 5. Alternate Crossover Wiring