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)

About troyski

I'm a freelance UNIX engineer working in the UK. I'm married to Tina and between us we have six children. I'm a bit of an Apple fan boy, and all the Windows machines in the house are a thing of the past now.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Private

Post navigation