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WE500 L/M works but wiring differs from TCI Library

Started by recyklotron, August 15, 2012, 10:33:23 PM

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markosjal

Quote from: paul-f on June 24, 2023, 03:15:40 PMNot surprising.

500-type sets were made by SC and ITT under license, so are usually virtually identical to the WE sets.

Terminal strips below the dial were used for several of the variations on the basic 500D single line set -- when additional terminals were needed to provide wiring points for the added components or wiring (e.g. for the 500M, separating the ringer wiring from the usual tip and ring lines to permit individual control from the PBX or KSU).


if memory serves me right.....">
I think in the case I saw it, as I remember it was to handle additional contacts for a DTMF pad. I think there are variations of the network used for DTMF and they have at least one , maybe two additional contacts for DTMF, but the same can be achieved using a rotary network with a terminal strip.
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