8 pin RJ45 (8P8C) male connector layout
8 pin RJ45 (8P8C) male connector
at the network interface card 1
This cable can be used to connect two computers together without a hub, or to connect two hubs together (without using an uplink port). If you are connecting two hubs together and one of them has an uplink port, use a straight cable. Most hubs nowadays are autosensing.
In order to make Crossover Ethernet cable wire one RJ-45 connector using the T-568A standard and the other RJ-45 connector using the T-568B standard.
 

Ethernet crossover cable pin assignment:

Name Pin Pin Name
TX_D1+ 1 3 RX_D2+
TX_D1- 2 6 RX_D2-
RX_D2+ 3 1 TX_D1+
RX_D2- 6 2 TX_D1-
BI_D3+ 4 7 BI_D4+
BI_D3- 5 8 BI_D4-
BI_D4+ 7 4 BI_D3+
BI_D4- 8 5 BI_D3-


 

Ethernet cat 5 Crossover Cable pinout and wiring scheme
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