info-mac@uw-beaver (info-mac) (07/24/84)
From: Thomas.Newton@cmu-cs-spice.arpa
[Ed. Ok - last word on MAC<>MODEM cables !]
These connections come from the comments in MacTEP version 1.87. I made
my cable using the directions in MacTEP version 1.60 and it works fine.
Mac Modem
1 1 (Frame Ground)
3,8 7 (Signal Ground)
5 2 (Transmit Data)
6 20 (+12V -> Data Terminal Receive (DTR)) [Optional]
7 8 (Clear To Send (CTS) <- DCD) [Optional]
9 3 (Receive Data)
You can get wire, DB-9, and DB-25 connectors at your local Radio Shack. Be
warned, however: the plastic hood they sell for their DB-9 connector will
not let you plug it firmly into the Mac. My solution was simply not to use
the hood. For the DB-25 end, you will want a "solder-type" connector.
-- Thomas.Newton@CMU-CS-Spice