[Linked Image from telecom.blakely.net]

txfoneman, this is a pic of the 464 set.


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how do you get a ten button set to operate off of a 25 pair cable when it takes three pair for each C O button?
Just a guess, a ten button set only requires pairs for 9 buttons, one being a hold. From what I read; the A control is common grounded with the w/o, you just told me it is possible to have a common on the lights, is this where they are getting the extra conductors to run a 10 button on 25 pair?

Signed; young wippersnapper! :shrug: