Siemens 2602 RJ-45 Pin Assignments, RJ-45 Pin Numbering, Straight-Through Cable, Crossover Cable

RJ-45 Pin Numbering

Straight-Through Cable

End 1		End 2
1	(TD+)	1	(TD+)
2	(TD-)	2	(TD-)
3	(RD+)	3	(RD+)
6	(RD-)	6	(RD-)

Pins 4, 5, 7 and 8 are not connected.

Crossover Cable

End 1		End 2
1	(TD+)	3	(RD+)
2	(TD-)	6	(RD-)
3	(RD+)	1	(TD+)
6	(RD-)	2	(TD-)

Pins 4, 5, 7 and 8 are not connected.

Table B-2. RJ-45 Pin Numbering

RJ-45 Pin Assignments

All LAN ports on the SpeedStream 2602 support automatic MDI/MDI-X configuration. This means that the pin signals in use will depend on whether the LAN port is operating in MDI or MDI-X mode. The WAN port is configured only for MDI-X mode.

Pin	MDI Signal Name*	MDI-X Signal Name*
1	Transmit Data (TD+)	Receive Data (RD+)
2	Transmit Data (TD-)	Receive Data (RD-)
3	Receive Data (RD+)	Transmit Data (TD+)
6	Receive Data (RD-)	Transmit Data (RD-)

Pins 4, 5, 7 and 8 are not connected.

* The “+” and “-” signs represent the polarity of the wires that make up each wire pair.

Table B-3. RJ-45 Pin Assignments

B-2