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#627908 03/02/19 02:15 PM
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Has anyone ever seen these connectors before or know what they are?


https://www.ebay.com/itm/TWO-Western-Electric-Type-2565-Touch-Tone-Key-Telephone-Set/273705577605


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Amphenol connector and it looks like it has a locking mechanism. Wires with your typical butterfly tool.


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I only counted 16 pair. I wonder what they were used on.



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Originally Posted by pdxjim911
I only counted 16 pair. I wonder what they were used on.
With a 5-Line set you don't need all 25 pair.

I bet Arthur, Sam, or Ed have seen this in use. 2565 New York Telephone Company ~ Not For Sale...now available on eBay.

Last edited by Professor Shadow; 03/02/19 09:17 PM.

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That has 2 rows if 16 contacts, and its a Female, not Male - pretty odd connector to be on the end of the mounting cord for a 1A2 phone

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I used to work with Tellabs DCS systems (530, 532, 532L & 5500). Those cables remind me of ones that used to connect to the rear of the various shelf backplanes.


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I knew I read somewhere that Sam would know...

From a 07/09/10 post "On some sets (2564 series) there was only a 16 pair cable (if I remember correctly) and the violets, all the A1s but the first one and some other leads"

Wh/Bl -1 Tip
Bl/W - 1 Ring
W/O - 1A
O/W - A1
W/Gn - LG
Gn/W - 1 Lamp

W/Br - 2 T
Br/W - 2 R
W/SL - 2A
SL/W - A1
R/BL - LG
BL/R - 2L

R/O pair - 3 T/R
R/Gn pr - 3A/A1
R/Br pr - 3 LG/L

R/SL pr - 4 T/r
Bk/BL pr - 4A/A1
Bk/O pr - 4 LG/L

BK/Gn pr - 5 T/R
Bk/ Bn pr - 5 A/A1
Bk/SL pr - 5 LG/L

Y/BL or Y/O pr - usually assigned to the buzzer for Intercoms

Y/Gn pr - Often assigned as a Lamp for the Hold button (Misc. features)

Y/SL pr - always assigned for the Ringer wired for the "Common Bell"

The Violet group was usually set aside for speakerphone leads. On some sets (2564 series) there was only a 16 pair cable (if I remember correctly) and the violets, all the A1s but the first one and some other leads (Some LGs maybe?) were missing completely.

And no, without a KSU you would need a separate ringer for each line.

Also the correct term is a "Key Telephone" or a "Key Set" a KTU is actually a "Key Telephone Unit" - which is a circuit board that plugs into a KSU (Key Service Unit) - the things that make key telephones work.

Sam


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I did a lot of 1A2 work in my day, did center 25 pair connections, did round 25 pair locking connectors for the military, but never saw anything like that.


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I've never seen one like it.

Or at least I don't remember if I ever did... frown


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I vaguely remember using those back in the '60s. Amphenol, though I don't know whether they still are made.

http://www.tzsupplies.com/amphenol-genuine-26-4301-16-16-pin-i4931606/

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