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Old 23rd Jul 2021, 9:04 pm   #12
AndiiT
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Join Date: Aug 2005
Location: Saltburn-East, Cleveland, UK.
Posts: 1,786
Default Re: Shared Service (Party Line) emulation

Hi, I tried experimenting to make a shared service emulator using relays in each station "line circuit" that were held via the loop after the "call exchange" button was depressed, this seemed satisfactory for outgoing calls until I began to look at the incoming ringing and drew up a couple of other designs which weren't very successful.

I had thought about going back to the drawing board, however many other factors of life got in the way, as is often the case. If I, or anyone else, make any progress, it would be interesting to see the resulting circuit.

Andrew
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