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RS232 null modem cable (DB25-DB25)

Use this cable between two DTE devices (for instance two computers).

D25 pin D-SUB female to PC1DB25 pin D-SUB female to PC1
DB25 pin D-SUB female to PC2DB25 pin D-SUB female to PC2

DB25-1DB25-2
Receive Data32Transmit Data
Transmit Data23Receive Data
Data Terminal Ready206+8Data Set Ready + Carrier Detect
System Ground77System Ground
Data Set Ready + Carrier Detect6+820Data Terminal Ready
Request to Send45Clear to Send
Clear to Send54Request to Send
Note: DSR & CD are jumpered to fool the programs to think that they are online.
Our software allows you monitor, log, debug and test your RS232 or COM ports.

Null modem (crossed) cable DB9-DB25 pin
Null modem (crossed) cable DB9 to DB9
Modem (straight) cable (DB9-DB25)
Modem (straight) cable (DB25-DB25)
RS232 modem cable (2-wire, DB9-DB25)
Modem cable (2-wire, DB25-DB25)