RS-232 DB-25
Male Connector Pin-outs
RS-232 Signal Pin-outs of DB-25 Male
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Pin 1 |
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Pin 2 |
TxD |
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Pin 3 |
RxD |
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Pin 4 |
RTS |
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Pin 5 |
CTS |
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Pin 6 |
DSR |
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Pin 7 |
GND |
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Pin 8 |
DCD |
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Pin 9 |
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Pin 10 |
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Pin 11 |
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Pin 12 |
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Pin 13 |
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Pin 14 |
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Pin 15 |
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Pin 16 |
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Pin 17 |
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Pin 18 |
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Pin 19 |
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Pin 20 |
DTR |
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Pin 21 |
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Pin 22 |
RI |
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Pin 23 |
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Pin 24 |
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Pin 25 |
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