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  1. Thread: Siemens TC35

    by aratti
    Replies
    20
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    24,324

    Post which pic you are using. You must have a Max...

    Post which pic you are using. You must have a Max 232 in between your pic and your TC35.

    The max232 you have internally the TC35 is for converting the internal TTL to rs232. You will need an...
  2. Thread: Siemens TC35

    by aratti
    Replies
    20
    Views
    24,324

    Check that pic pin 18 is connected to Max pin 12...

    Check that pic pin 18 is connected to Max pin 12 and pic pin 19 is connected to max pin 11.

    Since it seems you have a wired PCB then very likely you are unable to change the DB9 connection, so...
  3. Thread: Siemens TC35

    by aratti
    Replies
    20
    Views
    24,324

    The attached picture will explain better how the...

    The attached picture will explain better how the connection have to done.

    Cheers

    Al.
  4. Thread: Siemens TC35

    by aratti
    Replies
    20
    Views
    24,324

    If you have modified the Max232 to DB9 as per my...

    If you have modified the Max232 to DB9 as per my previous post then you pic board now is a DTE device, and to connect to the PC, which is a DTE device you need to cross pin 2 with pin 3 in the...
  5. Thread: Siemens TC35

    by aratti
    Replies
    20
    Views
    24,324

    You have to change connections from max to DB9...

    You have to change connections from max to DB9 connector.

    Max pin 14 to DB9 pin 3 and Max pin 13 to DB9 pin 2 or cross the connecting cable.

    Alberto
  6. Thread: Siemens TC35

    by aratti
    Replies
    20
    Views
    24,324

    In this case, check your connection Tx from your...

    In this case, check your connection Tx from your pic should go to pin 3 of your TC35 while your pic Rx should go to pin 2 of TC35 and pin 5 of TC35 should be connected to ground of your pic board.
    ...
  7. Thread: Siemens TC35

    by aratti
    Replies
    20
    Views
    24,324

    Does your easypic4 have a RS232 level converter...

    Does your easypic4 have a RS232 level converter (Max232) prior connecting it to the Siemens TC35 ? If not then you will need one.

    Cheers

    Al.
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