Cabletron Systems 9A000 manual Hardware Specifications, C.2.3.1 155 Mbps UTP Pinout Specifications

Hardware Specifications

C.2.3.1 155 Mbps UTP Pinout Specifications

155 Mbps UTP network modules have a standard RJ-45 female connector and use RJ-45 network equipment pinouts as illustrated in the table below:

Pin Number	Signal	Signal Name
	Mnemonic
1	RX+	Receive Data +
2	RX-	Receive Data -
3		Not Used
4		Not Used
5		Not Used
6		Not Used
7	TX+	Transmit Data +
8	TX-	Transmit Data -

C.2.3.2 Connecting Switches with 155 Mbps UTP Network Modules

When connecting switches using 155 Mbps UTP network modules, you need to use a category 5 UTP crossover cable with the following specifications:

•Pin 1 to pin 7 in both directions.

•Pin 2 to pin 8 in both directions.

155 Mbps UTP	Pin	Pin	155 Mbps UTP
RX+	1	1	RX+
RX-	2	2	RX-
	3	3
	4	4
	5	5
	6	6
TX+	7	7	TX+
TX-	8	8	TX-

C-8