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B-1
Compaq Netelligent 1017A/B 10Base-T Hub User Guide
Writer:
Chris Seiter
Project:
Appendix B: Port and Cable Assignments
Comments:
File Name:
1017A_B.DOC
Last Saved On:
6/26/97 3:11 PM
Appendix B
Port and Cable Assignments
Figure B-1
. RJ-45 Connector (on the Hub Side)
Pin
Assignment
(Port 1 ~ 16)
Assignment
(Daisy-Chain Port)
1
Input Receive Data +
Output Transmit Data +
2
Input Receive Data -
Output Transmit Data -
3
Output Transmit Data +
Input Receive Data +
6
Output Transmit Data -
Input 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 are shown below.
Straight-Through
Crossover
(Hub)
(Adapter)
(Hub) (Hub)
1 IRD+
1 OTD+
1 IRD+
1 IRD+
2 IRD-
2 OTD-
2 IRD-
2 IRD-
3 OTD+
3 IRD+
3 OTD+
3 OTD+
6 OTD-
6 IRD-
6 OTD-
6 OTD-
