Nortel Networks BCM50 Appendix D, Expansion ports wiring chart, Expansion port wiring Sheet 1

Appendix D Expansion ports wiring chart 211

Appendix D

Expansion ports wiring chart

Two of the four RJ-45 connectors on the BCM50, the BCM50a, and the BCM50e are designated as Expansion ports (see Figure 82). These ports are used to connect to a expansion unit or to connect network devices to the LAN.

Figure 82 Expansion ports on a BCM50 and an expansion unit

BCM50

Expansion/LAN	Expansion/LAN
(port 2)	(port 3)
	Expansion unit

Expansion port

pin out

Expansion port

Table 38 lists the wiring details for the expansion ports.

Table 38 Expansion port wiring (Sheet 1 of 2)

Pin	Signal
1	+ Ethernet Receive Data
2	– Ethernet Receive Data
3	+ Ethernet Transmit Data
4	– FS256 Transmit Data
5	+ FS256 Transmit Data
6	– Ethernet Transmit Data

BCM50 Installation and Maintenance Guide