Appendix B. Pin Assignments
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).
R D 
R D
T D 
T D
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
2
3
4
5
6
7