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Old 16th Sep 2017, 3:00 pm   #24
Oldcodger
Nonode
 
Join Date: Oct 2014
Location: West Midlands, UK.
Posts: 2,181
Default Re: Interconnecting old telephones?

Might be a help - https://www.systemstl.co.uk/item/134...x-t206-manuals
To open the DDK, I used to use a medium jeweller screwdriver .
Manual shows how to wire one up ,and how to connect sockets for simple telephone and a system one.
Simple telephone ( domestic type) uses a standard socket wired to 2 &5 (MASTER). System uses 2&5 for the wires from the inner of DDK , and 3&4 to outer using a secondary socket.
Panasonic use a language of their own in the manual - An exchange is referred to as a CO ( American for call office)line.
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