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DB-9F null modem

author: nsayer
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2 layer board of 0.65 x 0.60 inches (16.5 x 15.3 mm)
Uploaded: January 29, 2014
Shared: January 29, 2014
Total Price: $1.95

RS-232 null modem adapter board.

Edge-solder two DB9F connectors on either side of the board (DigiKey 4209FE-ND, for instance) and you get an RS-232 null modem. The pinout:

  • TXD<->RXD
  • RTS<->CTS
  • GND<->GND
  • DTR->DSR+DCD (x2)
  • RI->nc (x2)

RS-232 null modem adapter board.

Edge-solder two DB9F connectors on either side of the board (DigiKey 4209FE-ND, for instance) and you get an RS-232 null modem. The pinout:

  • TXD<->RXD
  • RTS<->CTS
  • GND<->GND
  • DTR->DSR+DCD (x2)
  • RI->nc (x2)
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      Ordering shared project

      Hey there! Before ordering, make sure you have all the info you need to complete and use this design. This usually means a component list, and sometimes additional information such as assembly notes, source code, or usage guides.
      Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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