[GreenKeys] Woot! M15 has arrived - and I am already STUCK!

[drlegendre .]

The unit showed up today, and it seems to be in truly excellent shape. No
obvious damage or signs of extensive wear or abuse. It has lost a fair bit
of black wrinkle paint off the typing unit frame, but I can't complain
about that.

But despite all of the other preparations I made for it, building hardware,
writing software, etc.. I can't figure out how to hook the dang thing up!

I have quite a few pieces of documentation for it, perhaps too many - but
so far, I can't find a simple
"Here is how to connect the M15 TTY" section.

Underneath the cover, the machine has two double-row screw terminal blocks.
A long one on the RH side about mid-way along, and a shorter one on the LH
side, near the rear.

There is an AC power cord connected to two of the RH terminals. There is
also a male TRS plug connected to two terminals on the same block. Only the
T and R connections are used, the sleeve is unwired.

So.. where are the Tx- / Tx+ and Rx- / Rx+ connections, where I can hook-up
my RS-232 / 60mA converter? Any other assist would be welcome, as there's
also this question about a line relay (that allows a remote machine to
enable the printer, I think).

As ever, TIA..

-Bill
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