IBM RT Mouse Was: IBM RT-PC available

[Alexandre Souza - Listas]

    First, some info I got on the net:
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H.11 - What is the pinout of the 6150/6151 Mouse/Tablet port?

   [ Has anybody gotten a NON-IBM RT mouse running on an RT?
     Or have a 3 button mouse that works on an RT? - MW ]

     Here is pin-out and information on the RT locator port.
     More information is available from "IBM RT PC Hardware Technical
     Reference" Volume 1 P/N 75X2032,  Chapter 9  pages 9-24 thru 9-29,
     and from Chapter 5, pages 5-131 thru 5-135 and page 5-145.

    [ The connector is a AMP type, I don't have the P/N of how to get the
     parts to construct one - MW ]

        Connector Specifications:
        (view is looking into the connector (male receptacle) socket on the
         back of the RT system unit.

         +--------------+            1 = ground.
         |    1  3  5   |            2 = Transmit to device.
         |              |            3 = +12 Volts
          -   2  4  6  -             4 = -12 Volts
           |          |              5 =  +5 Volts
           +----------+              6 = Receive from device.

    The RT standard locator device is a two button mouse.
    The middle button on a three button mouse can be simulated by
    pressing both buttons simultaniously, mostly used for X-windows.

      Resolution: 25, 50, 100 or 200 counts per inch.  Default=100.
      Sampling rate: Programmable 10,20,40,60,80 or 100.  Default=100.
      Data modes:  Stream (default), remote.
      Scaling: Linear (default), exponential.
>      Protocol: RS232C, 9600 baud, async, full duplex,
>         1 stop bit, odd parity.

      - Self test at power-on or when requested by system.
      - The locator device is semi-intelligent and has 14 different
        commands that it understands.
      - 11 bit framing protocol.

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        Seems it wouldn't be too simple to just connect a serial mouse to 
the chain. But I'd at least try :o) The speed and protocol SEEMS to be the 
same.     Only the "different commands that it understands" that maybe will 
not be very helpful to this hack.     Anyone with the RT hardware manual? 
:o)