NULLMODEM CABLE



nullmodem cable


 
 
Nullmodem Cable 9pin D-Sub to 9pin D-Sub 
D-Sub 1, female D-Sub 2, female
2 Receive Data 3 Transmit Data
3 Transmit Data 2 Receive Data
4 Data Terminal Ready 6+1 Data Set Ready + Carrier Detect
5 System Ground 5 System Ground
6+1 Data Set Ready + Carrier Detect 4 Data Terminal Ready
7 Request to Send 8 Clear to Send
8 Clear to Send 7 Request to Send

 
 
Nullmodem Cable 25pin D-Sub to 25pin D-Sub 
D-Sub 1, female D-Sub 2, female
2 Transmit Data 3 Receive Data
3 Receive Data 2 Transmit Data
4 Request to Send 5 Clear to Send
5 Clear to Send 4 Request to Send
6+8 Data Set Ready + Carrier Detect 20 Data Terminal Ready
7 GND 7 GND
20 Data Terminal Ready 6+8 Data Set Ready + Carrier Detect