This is a summary of the information given in an article which appeared in
Archive magazine October 1992 by Richard Oldman, 4 Egbert Gardens, Runwell,
Wickford, Essex SS11 7BH Please contact him for detailed information, a copy
of the original article or to have a cable made up etc.


Archimedes to Psion Series 3 comms link
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* MCLINK runs happily under the PC emulator on the Archimedes, but the
  3-Link cable doesn't work properly with the Archimedes' non-standard
  serial port.

* To make a conversion lead, you need
  2 9-pin D plugs, 1 male, 1 female.
  2 metalised D hoods
  a length of 9-way screened RS-232-use cable.

  IBM PC end (i.e. end of 3-link)              Archimedes end
  Pin 1 not used
  Pin 2 ---------------------------------------Pin 2
  Pin 3 ---------------------------------------Pin 3
  Pin 4 ---------------------------------------Pin 4 (solder to Pin 1 as well)
  Pin 5 ---------------------------------------Pin 5
  Pin 6 ---------------------------------------Pin 8
  Pin 7 ---------------------------------------Pin 7
  Pin 8 ---------------------------------------Pin 6
  Pin 9 not used

* To change the Archimedes software to default to the same as the Series 3,
  use the *Configure command:
   *CONFIGURE BAUD 7                                  [sets to 9600]
   *CONFIGURE DATA 5     (followed by Ctrl-Break)     [sets to 8bits no parity]

  You can now check the settings by typing *STATUS

* MCLINK can now be run and should work as advertised for a PC etc

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The above works OK for Archimedes PC emulator versions 1.34 and 1.70. A3000
users would have to check they have the serial chips fitted. No testing has
been carried out on A5000s.