Com (9-контактов)

На компьютере COM порт выглядит так: COM Serial (PC 9), EIA/TIA 574 распайка распиновка

# Название Направление RS232 V.24 Описание
1 CD << CF 109 Carrier Detect
2 RXD << BB 104 Receive Data
3 TXD >> BA 103 Transmit Data
4 DTR >> CD 108.2 Data Terminal Ready
5 GND AB 102 System Ground
6 DSR << CC 107 Data Set Ready
7 RTS >> CA 105 Request to Send
8 CTS << CB 106 Clear to Send
9 RI << CE 125 Ring Indicator

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