[Collins] Assembly part numbers

[antqradio at sbcglobal.net]

I've done a little more research on the 'net.  It seems that:
CU-523
CU-749
180R-6
490B-1
are all the same coupler.  Does anyone have a manual on any of the above for rent, sale or lend?
Jim


________________________________
 From: "antqradio at sbcglobal.net" <antqradio at sbcglobal.net>
To: "collins at mailman.qth.net" <collins at mailman.qth.net> 
Sent: Sunday, February 2, 2014 12:26 PM
Subject: [Collins] Assembly part numbers
 

It appears that Collins assigned new part numbers to modules and components when an assembly was reissued under a new designation.  I have been collecting components for the ARC-58 system.  So far, the antenna coupler and controller have eluded me but I have found the TRC-75 units on eBay.  I am short by one connector for the CU-523 so interconnect cables are getting close to the assembly stage.

So the questions I have are:
Is the C-1940/ARC-58 equivalent to the C-2848/TRC-75?

Likewise, is the CU-523/ARC-58 equivalent to the CU-749/TRC-75?

Does anyone have the pin outs of the TRC-75 controller and antenna coupler?  A wiring schematic would be appreciated.
TIA,
Jim
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