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BOBH

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RJ45 connector

I need the pinning of an RJ45 connector when it is used as an ethernet connector.

BobH
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tomasg18

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BOBH

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Thanks tomasg18:

That answers everything except which pins are + data and which pins are - data. Also which pins are ground.

BpbH
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There is better info at the address below

http://www.cabletron.com/support/techtips/tk0231-9.html

BobH
Straight Through Cable
RJ-45 PIN RJ-45 PIN
1 Tx+ 1 Rc+
2 Tx- 2 Rc-
3 Rc+ 3 Tx+
6 Rc- 6 Tx-
Crossover Cable
RJ-45 PIN RJ-45 PIN
1 Rx+ 3 Tx+  
2 Rc- 6 Tx-
3 Tx+ 1 Rc+
6 Tx- 2 Rc-
Avatar of ShineOn
'course those are only for up to 100-base-TX.  For 1000-base-T you need all 4 pairs...
You need all 4 pairs for 100-Base-T4 and 100VG-Anylan as well.