[comp.sys.att] IMSAI SIO dox

jep@oink.UUCP (08/15/87)

IMSAI SIO documentation

Someone posted news requesting documentation for an old IMSAI SIO
board.  I have the dox, but have deleted that old news with the
requestor's identity.  Please send me your address so I can forward
the dox.

Until then, short pins 1&16, 2&15, 3&14, 4&13, 5&12, 7&10, and 8&9 of
sockets A3 and B8 to wire ports as DTEs.  C7 is for a DIP switch: four
pairs of complementary switches.  

a7 pins 1,2,15,16
.
.
.
a4 pins 7,8,9,10

for I/O mapped operation short pins 5&12, and 8&9 of D6.

Baud rate: connect one of pins 1(9600) - 8(110) to both pins 11&12 of B11

My board is a Rev 3

James E. Prior  {ihnp4|cbosgd}!n8emr!oink!jep