[GreenKeys] Modems and CCU's

[COURYHOUSE at aol.com]

The  50 pin version were  common for 1A2  key   telephone  systems!
I  Think the phone company was a huge consumer of those  connectors!
 
Ed#  KF7RWW   _www.smecc.org_ (http://www.smecc.org)  
 
 
In a message dated 1/4/2014 6:37:32 P.M. Mountain Standard Time,  
gil at baudot.net writes:

I seem to recall that connector family being informally referred to as  
"delta" connectors, yes, the well-known one for Centronics-compatible parallel  
printers, a smaller one being for gpib, and maybe even one for early  scsi. 
 IIRC.


gil



gil smith, AF7EZ
greenkeys moderator
_gil at baudot.net_ (mailto:gil at baudot.net) 




-------- Original Message --------
Subject: Re:  [GreenKeys] Modems and CCU's
From: Jim Haynes <_jhhaynes at earthlink.net_ (mailto:jhhaynes at earthlink.net) >
Date:  Sat, January 04, 2014 6:00 pm
To: John Ball <_ball.of.john at gmail.com_ (mailto:ball.of.john at gmail.com) >
Cc:  _greenkeys at mailman.qth.net_ (mailto:greenkeys at mailman.qth.net) 

OK,  that CCU looks like one for Telex. The one with two  "Centronics"
connectors is for TWX and 99 of the 100 wires are used. The  real name
of the connectors is Amphenol Micro-ribbon, but they get  called
Centronics because they are most familiar when used with that make  of
printers for computers.

There is some information about the  Telex equipment in Western Union
Technical Review. In particular see the  article in Vol. 17, No. 4,
starting on page 134.
_massis.lcs.mit.edu/archives/technical/western-union-tech-review_ 
(http://massis.lcs.mit.edu/archives/technical/western-union-tech-review) /



jhhaynes  at earthlink dot  net
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