Re: GPIB/RS232

[Przemek Klosowski]

   There is a way to use the parallel port on the computer to
   interface to a single dedicated GPIB terminal.

FWIW, there was an interesting thread on S.E.D about GPIB stuff:

http://groups.google.com/group/sci.electronics.design/browse_frm/thread/962f76d41765604a

Here's one circuit that people claimed:

            |
            |      ____
            |     |    |             +5V
"RTS"->|----o-----| L05|-----o----------------------.
            |     |____|     |                      |
            | +     |        |                      |
           ###      |       ---              ----||-+ PMOS
     100uF ---      |       --- 100n             ||->
            |       |        |                   ||-+
            |       |        |                      |    100
           ===     ===      ===                     |    ___     "Rx"
           GND     GND      GND                     o---|___|--->Data
                                                    |             Out
                                                    |
                                                    |    ___
                                                    '---|___|----"Tx"
                                                                (-10V)
                                                         15k 

Other GPIB links I acquired over the years
http://www.me.utexas.edu/~lotario/me244L/labs/cbm/gpibintro.html
http://www.llp.fu-berlin.de/pool/software/busses/         (linux drivers)



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