This cable should be used for DTE to DCE (for instance computer to modem) connections with hardware handshaking. (To Computer).
(To Modem).
9 PIN D-SUB FEMALE to the Computer 25 PIN D-SUB MALE to the Modem | | Female | Male | Dir | | Shield | | 1 | ------ | | Transmit Data | 3 | 2 | OUT | | Receive Data | 2 | 3 | IN | | Request to Send | 7 | 4 | OUT | | Clear to Send | 8 | 5 | IN | | Data Set Ready | 6 | 6 | IN | | System Ground | 5 | 7 | ------ | | Carrier Detect | 1 | 8 | IN | | Data Terminal Ready | 4 | 20 | OUT | | Ring Indicator | 9 | 22 | IN |
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