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6
Netelligent 1005 10Base-T Hub User Guide
Writer:
Chris Seiter
Project:
Netelligent 1005 10Base-T Hub User Guide
Comments:
File Name:
1005.DOC
Last Saved On:
6/26/97 11:19 AM
Hub's RJ-45 Pin Assignments
The following table and illustrations show the pin wiring for both straight and
crossover twisted-pair cable. (Note that crossover cable is required only if you
cascade hubs using RJ-45 Ports 1-5; that is, the UPLINK port is not used.)
Pin
MDI-X Assignment
(Port 1~5)
MDI-Assignment
(UPLINK 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
Figure 2
. RJ-45 Pin Configuration
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-