24 Feb
1999
24 Feb
'99
5:30 p.m.
Rick Bensene wrote:
The machine is a "Model 745 Portable" with built-in acoustic coupler
cups at the rear of the machine. It works at 300 or 110 baud.
The first question for y'all is this: On the rear
panel of the machine is
a DB-15 male connector...my assumption this is for hooking up a (RS232 or
current-loop) 'direct connection' to the terminal. I don't have any
documentation
for the machine, and am wondering if anyone out there might know the pinout
for this connector.
According to the tech manual, it sounds like the port is the EIA/Auxiliary
Coupler and the cable has one 15 pin connector attaching to the 745, and two
other cables.
(Keyboard/Printer EIA Interface)
P1-9 ..... P2-1 Protective Ground
P1-13 ..... P2-2 Transmit Data
P1-12 ..... P2-3 Receive Data
P1-10 ..... P2-4 +12v to RTS
P1-1 ..... P2-7 Signal ground
P1-11 ..... P2-8 Data Carrier Detect
P1-15 ..... P2-20 Data Terminal Ready
(Acoustic Coupler EIA Interface)
P1-8 ..... P3-3 Receive Data
P1-3 ..... P3-2 Transmit Data
P1-1 ..... P3-7 Signal Ground
P1-2 ..... P3-8 Carrier Detect
P1-9 ..... P3-1 Protective Ground
P1-6 ..... P3-5 Clear to Send
P1-7 ..... P3-6 Data Set Ready
Hope this helps.