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Serial (RS232) modem cable (DB25-DB25)

This cable should be used for DTE to DCE (for instance computer to modem) connections with hardware handshaking.

D25 pin D-SUB female to the PCDB25 pin D-SUB female to the PC
DB25 pin D-SUB male to the modemDB25 pin D-SUB male to the modem

 FemaleMaleDirection
Shield Ground11
Transmit Data22
Receive Data33
Request to Send44
Clear to Send55
Data Set Ready66
System Ground77
Carrier Detect88
Data Terminal Ready2020
Ring Indicator2222

Null modem (crossed) cable DB9 connectors
Null modem (crossed) cable DB9 and DB25 connectors
Null modem (crossed) cable DB25 connectors
Modem (straight) cable (DB9-DB25)
RS232 modem cable (2-wire, DB9-DB25)
Modem cable (2-wire, DB25-DB25)