Null Modem Cables

The Null Modem cable allows you to connect two DTE devices together without the use of a DCE device in between. The RS-232 Null cable is an easy way to transfer data from one computer to another computer directly through a serial port. Simple Null modem cable is also known as a crossover cable. We have a wide selection of DB9 or DB25 Null Modem serial cable available, also quantity discount pricing is available! If you need any assistance on Null Modem or need a larger quantity than what our stock level is showing, please contact one of our sales representatives at 800.273.9556

 

DB9 to DB9 Null Modem Pinouts
1 & 6 4
2 3
3 2
4 1 & 6
5 5
7 8
8 7
 
DB9 to DB25 Null Modem Pinouts
2 2
3 3
4 & 5 1
6 4
7 5
8 7 & 8
20 6
22 9