The crossover cable differ from cable used for straightforward Ethernet RJ45 connection. 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- |
Note 1: It´s important that each pair is kept as a pair. TX+ & TX- must be in the pair, and RX+ & RX- must together in another pair etc. (Just as the table above shows).