25-pin NULL Modem Cable:
Remoet host | Calling system |
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serial port | serial port | Signal | |
connector | connector |
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2 | 3 | Transmit Data | |
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3 | 2 | Receive Data | |
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4 | 5 | Request to Send | |
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5 | 4 | Clear to Send | |
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6, 8 | 20 | Data Set Ready | |
and Carrier Detec | |||
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7 | 7 | Signal Ground | |
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20 | 6, 8 | Data Terminal | |
Ready | |||
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Appendix A Cabling for
