====== Prise DB9 ======

{{:pinout:db9-pinout.jpg?600}}

[[https://www.decisivetactics.com/support/view?article=db-9-connector-pinout|Source]]

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^  Pin  ^  Sig.  ^  Desc.  ^  Dir  ^
|  1  |  DCD  |  Data Carrier Detect  |  <=  |
|  2  |  RXD  |  Receive Data  |  <=  |
|  3  |  TXD  |  Transmit Data  |  =>  |
|  4  |  DTR  |  Data Terminal Ready  |  =>  |
|  5  |  0V/COM  |  0V GND  |  =  |
|  6  |  DSR  |  Data Set Ready  |  <=  |
|  7  |  RTS  |  Request To Send  |  =>  |
|  8  |  CTS  |  Clear to Send  |  <=  |
|  9  |  RI  |  Ring indicator  |  <=  |

[[https://pinouts.ru/SerialPorts/Serial9_pinout.shtml|Source]]