DCE

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DCE - RS-232 to TTL

  • RS-232 to TTL converter
  • The DCE (peripheral) has the female.

DTE DCE.png

H1 Connector

  • Pins signal directions are reversed from an FTDI card
    • Can be directly wired to FTDI connector
  1. GND
  2. CTS (out)
  3. VCC (3.3V or 5V)
  4. TX (in)
  5. Rx (out)
  6. RTS (in)

Test Procedure

  • FTDI-49MM
  • DCE/DTE Cards
    • 9 pin connectors plugged together
  • FTDI loopback cable
  • Run PuTTY
    • 115,200 baud, RTS/CTS
  • Type and it comes back

SP232A Application

  • SP232ACN-L is 5V part
  • ICL3232IBNZ is 3.3V or 5V part

SP232A app.PNG

DTE (reference)

  • The DTE (PC) has the male connector

DCE Assembly Sheet