The following tables can be used to create a RJ45 to DB9/25 cross-over adapters used with an RJ45 cables to connect to server serial console ports.
The following table is for creating a DB25 or DB9 adapter to connect a RJ45 cable to a Netra T1 RJ45 console port.
CAT5 Cable Colour | RJ45 Pin |
Adapter RJ45 Colour |
DB25 Pin |
DB9 Pin |
White/Orange | 1 (RTS) | BLUE | 4 (CTS) | 8 (CTS) |
Orange | 2 (DTR) | ORANGE | 20 (DSR) | 6 (DSR) |
White/Green | 3 (TX) | BLACK | 2 (RX) | 2 (RX) |
Blue | 4 (GND) | RED | 1 (GND) | 5 (GND) |
White/Blue | 5 (GND) | GREEN | 7 (GND) | 5 (GND) |
Green | 6 (RX) | YELLOW | 3 (TX) | 3 (TX) |
White/Brown | 7 (DSR) | BROWN | 8 (DTR) | 4 (DTR) |
Brown | 8 (CTS) | WHITE | 5 (RTS) | 7 (RTS) |