[GreenKeys] Western Union 28ASR wiring

[Nick England]

Hi Gang - I am looking for a wiring diagram for my Western Union
28ASR. I have found a couple of WU diagrams, but not one for this unit
which has (I think) a 9797 wiring cabinet (ESU). This piece is green
with LJ, BJ, RJ, PJ jacks, a polar relay, and a Cinch Jones socket for
something?
Here's a photo
http://www.navy-radio.com/tty/28asr/rest4/28asr-lesu-210.JPG
and a photo of the insides
http://www.navy-radio.com/tty/28asr/rest4/2-02.jpg

I found some email from Jack in 2006 talking about the wiring mods to
get WU 28ASR's working, and I've traced out enough wiring to do that -
but I really would like to see an original wiring diagram to
understand how it was hooked up in the first place.

If you have a drawing and can let me borrow it to scan, I'll post it.
Or if you can take some good digital photos that'd do the trick as
well.

thanks for your help,
Nick K4NYW
www.navy-radio.com