CyberData 11187, Operation Manual, Page: 14 / 18

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Operations Guide 930591G CyberData Corporation
Appendix A: The Standard RJ-45 Introduction
Regarding cable-making methods, a cable which does not meet the standards of the sequence data
will make the data transmission speed slow, unstable and even be blocked.
Table A-1 represents the
standard RJ-45 jack and the connector ( Figure A-1 ) and pin definition:
Figure A-1. Standard RJ-45 Jack / Connector
Table A-1. RJ-45 Connector Pin Definitions
Pin Number Signal
1 _TX1 +(PoE Power+)
2 _TX1 - (PoE Power+)
3 _RX1 + (PoE Power-)
4 _TX2 +
5 _TX2 --
6 _RX1 - (PoE Power-)
7 _RX2 +
8 _RX2 -