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Vintage Telephony and Telecomms Vintage Telephones, Telephony and Telecomms Equipment |
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16th Nov 2019, 2:37 am | #21 |
Dekatron
Join Date: May 2010
Location: Greater Manchester, UK.
Posts: 18,725
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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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-- Graham. G3ZVT |
16th Nov 2019, 10:15 pm | #22 |
Nonode
Join Date: Oct 2014
Location: West Midlands, UK.
Posts: 2,181
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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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17th Nov 2019, 11:17 am | #23 | |
Heptode
Join Date: Apr 2011
Location: Edinburgh, UK.
Posts: 805
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Re: DTMF to pulse converter
Quote:
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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