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RS232 Serial Modem Cable (DB9-DB25)

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

DB9 pin D-SUB female to the PCDB9 pin D-SUB female to the PC
DB25 pin D-SUB male to the modemDB25 pin D-SUB male to the modem

 FemaleMaleDirection
Shield1
Transmit Data32
Receive Data23
Request to Send74
Clear to Send85
Data Set Ready66
System Ground57
Carrier Detect18
Data Terminal Ready420
Ring Indicator922