[GreenKeys] M33 Mystery UCC

[teletypeparts at comcast.net]

Ken, 

I guess I have never seen the versions you are referring to. 

I have seen the UCC-5 which was used with a 32 ASR in private wire or early computer applications and of course the UCC-6 for 33 private wire and computer use. 

The Telex with dial unit had a designation I dont recall for sure. 

The TWX dial unit was maybe a UCC-3, not sure. 

I do know there has always been an issue with Send and Receive labeling as to whether you are talking about the TTY or the device its connected to. 

73, 

Wayne 




----- Original Message -----

From: "Kenneth Gartland" <trnsrme at gmail.com> 
To: "greenkeys" <GreenKeys at mailman.qth.net> 
Sent: Thursday, June 9, 2016 10:04:33 AM 
Subject: [GreenKeys] M33 Mystery UCC 



Hi all! 

I have to correct a bit of wrong info in my posting 
from yda re: the UCC units used in computer interfacing... 

I had mentioned the UCC28 as being used extensively 
for this application, however it was used in the 'Data Telex' 
network in Canada 110Bd 8 level dial-up service... 

With the exception of the larger molex connectors on the 
UCC rear panel, it is functionally equivalent to the UCC27 
used in standard 50Bd Telex service (Canada)... 
The Western Union equivalent being UCC9... 

Sorry for the earlier wrong info... 

I believe the correct alternate UCC used by computer 
suppliers is likely UCC2 or 3... 

It can be easily identified by the extra 9 position wiring 
block located directly behind the function switch in the 
UCC... 

If my memory still works a little, one side of the TX or RX 
loop connects here, while the other three remaining loop 
wires connect to the rear TB block... 

Perhaps our good friend, Wayne, can comment on this 
particular version of UCC... 

Many tks! 

Ken VE3-HMQ 
I-Telex 61663 
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