Compaq 1005 manual Hubs RJ-45 Pin Assignments, RJ-45 Pin Configuration

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6Netelligent 1005 10Base-T Hub User Guide

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.)

			MDI-X Assignment		MDI-Assignment
	Pin		(Port 1~5)		(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-