13 Jun
2011
13 Jun
'11
12:22 p.m.
On Monday (06/13/2011 at 07:39PM +0100), Tony Duell wrote:
One thing, though... There were Model 33s with modems in the stand. What
interface was used to said modem? Rs232 would be 'obvious' (and therefore
likely to be wrong :-))
yes... wrong ;-) At least for one datapoint,
I have an Anderson-Jacobson branded ASR-33 which has an AJ 300 baud
acoustic coupler built into the right side of the '33 where the dialer
(for TWX) was usually placed.
This modem plugs into an internal MOLEX connector at the back of the
'33 and talks on the 20mA loop directly. No RS232 involved.
Chris
--
Chris Elmquist