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

[couryhouse via GreenKeys]

http://www.smecc.org/teletypewriters_made_easy.htm
Easiest  to follow model 15 section This has many sections see bottom  it read other history too on deaf tty...

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-------- Original message --------
From: Pete Lancashire <pete at petelancashire.com> 
Date: 09/05/2015  8:26 PM  (GMT-07:00) 
To: "drlegendre ." <drlegendre at gmail.com> 
Cc: Green Keys <GreenKeys at mailman.qth.net> 
Subject: Re: [GreenKeys] Woot! M15 has arrived - and I am already STUCK! 

Do you have the M15 manuals ?
-pete
On Sat, Sep 5, 2015 at 6:45 PM, drlegendre . <drlegendre at gmail.com> wrote:
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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