[net.micro.apple] Apple Communication card modification

ix454@sdccs6.UUCP (11/29/83)

Does anyone have a diagram of the wiring needed to change the Apple 
Communications card (A2B0003X, the old 110/300 baud one) from the
standard speeds to 9600/? baud.  Wiring for changing to 1200/300 and 
4800/1200 are given in the manual, but no word of 9600.  We had one, 
but it disappeared in a robbery one night, and we'd like to have another.

Thanks in advance,
-- 
  Allyn Fratkin
  U.C. San Diego

jhb@ecsvax.UUCP (12/06/83)

To speed up a Communications card to 9600 baud:
1. Make the modification in the manual for 4800 buad.
{15 of A2. Chip A1 still isn't required.
3. Cut the trace from A1 pin 2 to pin 38 of the edge connector and wire it
to pin 37 instead (this won't work on the new cards with gold edge connectors
as they don't have a contact for pin 37).

-Joe Budge
Apple Computer