Connect with us

RS232

Discussion in 'General Electronics Discussion' started by REZA MALHAVI, Sep 20, 2017.

Scroll to continue with content
  1. REZA MALHAVI

    REZA MALHAVI

    6
    0
    Sep 8, 2017
    Hi
    I have a rs232 interface with 4 wires connected: 2 3 4 5
    can you help me about this connection?
    is it Rs232 or other types?
    I can read the sensor with this interface (modbus).
     
  2. davenn

    davenn Moderator

    13,397
    1,790
    Sep 5, 2009

    so have you googled RS232 to find the used pins and protocols etc ?

    go and do that and come back with specific questions on anything you didn't understand
     
  3. REZA MALHAVI

    REZA MALHAVI

    6
    0
    Sep 8, 2017
    yes , I googled it, pin 4 is DTR but I didnt see Rs232 with 4 wire connected , if you know about this please answer clearly not just ...
     
  4. davenn

    davenn Moderator

    13,397
    1,790
    Sep 5, 2009
    it depends on if your setup requires DTR, not all do. Some only use 3 wire, TX, RX GND
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-