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Old 16th Nov 2019, 2:37 am   #21
rambo1152
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Default Re: DTMF to pulse converter

The "connections box" was sold separately, I suspect the OP is making connections to one of the supplied RJ45 cables.

A later style of connection box had leaf springs between the Krone strips instead of DIP switches, and a plastic comb was inserted to cut-over the unit(s)
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Old 16th Nov 2019, 10:15 pm   #22
Oldcodger
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Default Re: DTMF to pulse converter

An alternative method which does all the work in one is one of the smaller Panasonic ( e.g. KXT 206) SYSTEMS, when fitted with a door intercom unit and a DC supply to power a Yale lock fitting. System is programmed for door entry. Programmed extensions ring to allow for communication and called person dial a code to allow entry .
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Old 17th Nov 2019, 11:17 am   #23
OscarFoxtrot
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Default Re: DTMF to pulse converter

Quote:
Originally Posted by Oldcodger View Post
An alternative method which does all the work in one is one of the smaller Panasonic ( e.g. KXT 206) SYSTEMS, when fitted with a door intercom unit and a DC supply to power a Yale lock fitting. System is programmed for door entry. Programmed extensions ring to allow for communication and called person dial a code to allow entry .
Not sure how that would interface with the OP's existing system (which I presume is common to a number of apartments).

Personally I think I'd use a cheap/old LD push-button phone and arrange relays to operate the hookswitch and '0' button.
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