atcomsystems.ca/forum Forums Other TDM Phone Systems 1A2 and Comkey Telephones & Systems Tone intercom card help

There's alot of model numbers flying around this thread. That ebay item ended, but apparently you guys think a Melco KT-19 (19 station?) can be used as a replacement for the thing that's there now (207C?). What's the consensus about the Melco/Teltone T-10/C-10 that Mr. Bloom mentioned? If those are 10 station, that's all we need.

I counted 15 handsets this morning. Only about half of those ever get buzzed.

Anyone seen a "black-box" that lets you use "new" DTMF phones/FAXs on an "old" POTS line configured as pulse only? might be able to hook that up to the input of his 207C.

Unfortunately, a quick look thru sandman yielded only the opposite, adapters which listen for pulses and emit tones (allowing you to use an old pulse-dial phone on a DTMF only PBX) - might still be useful if he gets stuck with a tone-only intercom module.

Teltone and Mitel used to make them, but they too will likely be hard to find. That's going to take some time on e-bay or Google to find.

They both referred to this device as a "tone to pulse converter".

WWarren: There are plenty of us here who will be happy to sell you a combination replacement intercom, but these things aren't simple to wire, especially when replacing a 207C.

Ed -

I think it depends on the skill level of his vendor.

Plug in the amphenoled cable, chop it down on a block and move the wires off of the 207 onto the new unit.

I'm sure we can come up with a print for the 207 and the intercoms come with a print on the side.

The big question is: what are the vendors capabilities?

Sam

Exactly, Sam. Therein lies the problem. It's not that the replacement is hard to wire; it's the fact that the 207C is so hard to "unwire"!

After a couple weeks break from this, I'm back after our phone guy dropped off a couple of tone intercom units. I have a Melco KC-19 and a Valcom V-119RT. The only connection on them is the long-narrow connector like what the phones use, that sorta looks like a centronics parallel port plug. You guys were talking about the complicated wiring for this, but this box looks like it just plugs in like a phone. What's the deal?

Walter

You mount the intercom unit, either in a rack, or on the backboard. Then you plug in a 25 pair cable (the one that looks like a centronics) and terminate it on a punch down block. Connect power leads to the block. Then you disconnect the wiring that runs from your existing 207C intercom to the stations. Then you cross connect Tip, Ring, Lamp and Signal leads from the new Intercom unit to each station.

That's it.


Sam