An Easy Approach for TTL (3.3V or 5V) to RS-232 conversion, that fits INSIDE the DE-9 back shell. These Korean modules are popular with Arduino and AVR/ATmega users.
Nulsom, Inc. (Korea) http://www.nulsom.com/ Available for purchase on Amazon, $9.95 USD Yes, I bought a couple, earlier this summer. The Nulsom NS-RS232 converter can operate at a data rate of 235 Kbps (230,400bps). The drivers can guarantee a date rate of 120Kbps (115,200bps) fully loaded with 3KΩ in parallel with 1,000pF, ensuring compatibility with PC-to-PC communication software. Available with DE-9F (-01 option) or DE-9M (-02 option). - Convert TTL (Transistor-Transistor Logic) level signals to RS232 interface - DE-9 connector (Male or Female) mounts inside back shell (RS-232) - Supports 3V ~ 5.5V power supply (Use on your 3.3V and 5V projects) - RTS, CTS (control lines) also available on circuit board (5-wire RS-232 support) Nulsom NS-RS232 User Manual http://www.nulsom.com/datasheet/NS-RS232_en.pdf == Digi-Key sells nice “hinged” or “one-piece” back shells. Such as the NorComp 972 series https://www.norcomp.net/rohspdfs/BackShells/AssemblyInstructions/Backshell-972Series.pdf greg, w9gb Sent from iPad Air _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
