Author Topic: wiring on 20AL, mainly the hookswitch  (Read 1655 times)

Offline TallahasseeTom

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wiring on 20AL, mainly the hookswitch
« on: March 10, 2015, 09:50:28 AM »
 Greetings.  This will be my first 20AL to finish out, somehow I have lost the wiring diagram for the subset to hook switch.  Transmitter wired in right. Please advise where the receiver wire settles in and thank you.
wall to subset no problem

unbeldi

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Re: wiring on 20AL, mainly the hookswitch
« Reply #1 on: March 10, 2015, 10:16:18 AM »
Greetings.  This will be my first 20AL to finish out, somehow I have lost the wiring diagram for the subset to hook switch.  Transmitter wired in right. Please advise where the receiver wire settles in and thank you.
wall to subset no problem

The receiver should have leads with green- and white-traced insulation.  The green one goes to the GN (GreeN) terminal, and the white one goes to the third switchhook contact, marked W (White).

Transmitter has double-yellow leads which go to Y/YY terminal and first hookswitch YY spring (the one that is moved by hook).

The hookswitch contact sequence is  YY, R, W.

What kind of subscriber set do you have?
« Last Edit: September 04, 2017, 01:02:02 PM by unbeldi »

Offline poplar1

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Re: wiring on 20AL, mainly the hookswitch
« Reply #2 on: March 10, 2015, 12:14:13 PM »
Cording for 20AL, from TCI library (file: Desk Stands, 323 Tl)
« Last Edit: March 10, 2015, 12:18:09 PM by poplar1 »
"C'est pas une restauration, c'est une rénovation."--François Martin.

unbeldi

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Re: wiring on 20AL, mainly the hookswitch
« Reply #3 on: March 10, 2015, 01:32:12 PM »
Here is the corresponding subscriber set wiring when installed in a common-battery central office.
This is the WECo 534A model.
« Last Edit: September 04, 2017, 01:01:53 PM by unbeldi »

Offline TallahasseeTom

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Re: wiring on 20AL, mainly the hookswitch
« Reply #4 on: March 10, 2015, 08:13:05 PM »
Thanks to all who contributed on my 20 AL build questions. Those diagrams are wonderful.
Thank you again.