On Tue, May 9, 2017 at 2:58 PM, Brent Hilpert via cctalk <cctalk@classiccmp.org> wrote: > On 2017-May-09, at 9:06 AM, Chuck Guzis via cctalk wrote: >> Looking at this documents: >> >> http://www.samhallas.co.uk/repository/telegraph/data_set_101c.pdf
What a find. Thank you! > I've looked at one of these modems in the bottom of a 33 although not > examined it in great depth. I've got a 101C in the bottom of an ASR33 I got at Dayton many, many years ago. I have no idea how any of it works at the detail level (I get how it works at the system level). Fortunately for me, it's never required any deep fiddling. The one thing I need to do is replace the touchtone keypad on that ASR33 - I removed it many years ago and failed to document it sufficiently to just "put it back". I can probably figure out about 80% of it from obvious signs (like which screw terminals are lifted and empty), but even before I begin, I have 2 loose touchtone keypads from the same era with different numbers of wires and I didn't mark the one from the ASR33 (the other is from a Western Electric telephone). The 101C Data Set, though, is, to me, a large aluminum clad box of mystery in the ASR33 pedestal. -ethan