A
P P E N D I X
B. P
IN
A
S S I G N ME N T S
RJ-45 station ports can be attached to any device which use a
standard network interface (e.g., a workstation, server, bridge or
router). RJ-45 daisy-chain ports can be cascaded to a station
port on similar networking devices (e.g., another switch or hub).
Use unshielded twisted-pair (UTP) for RJ-45 connections: 100
ohm Category 3,4 or 5 cable for 10Mbps connections or 100
ohm Category 5 cable for 100Mbps connections. Also be sure
that the length of any twisted-pair connection does not exceed
100 meters (328 feet).
1
2
3
4
5
6
7
8
TD
RD
TD
RD
Figure B-1. RJ-45 Connector
Pin
Pin Station Ports 1 ~ 8
Cascade Ports
1
Receive Data
＋
Transmit Data
＋
2
Receive Data
－
Transmit Data
－
3
Transmit Data
＋
Receive Data
＋
6
Transmit Data
－
Receive Data
－
4,5,7,8
Not Used
Not Used
Table B-1. RJ-45 Pin Assignments
Schematics for both straight and crossover twisted-pair cable
30
