atcomsystems.ca/forum Forums TDM Business Telephone Systems Nortel Telephones & Systems Door Phone / Door Opening Controller

UPDATE & CONCLUSION

Marv, I didn't get your last post until tonight, but in any event, the problem is solved !!!!! :toast: Using the Ext Page relay contact did the trick, but with a twist.

I tried using the same pair going to the release using one side to power and the other from the relay contact. As soon as I connected I'd still get 24 vac+/-, thus setting off the release.

I narrowed down the problem to an electrical issue and eventually tried going from the relay contact to the release using a spare lead in the 4 pair directly to the Opener. At the Door Opener, I then attached that spare lead with the other side of the pair from the DOC (for the release).

In theory I should have been able to do this connection at the DOC, but I seemed to be getting about 10 vac feedback at that point.

The teachers probably won't be crazy about using the feature code, but....it's working, I'm smiling & we all have a workable solution.

Many thanks to all that helped out with this one...Telemarv, Twisted Pair, Vad60, etc....

Marv, the next time I'm in the Ottawa region, I'll be stopping in with a bottle of Canadian Club for you for all your help. Might go to the Highland Games in Almonte, we haven't decided if we're competing this year or not. I'm definately going to Maxville, even if the band doesn't compete.

Dave

Here's an easier way that I've done before;

Using the relay set-up like you have now, I've hooked it up to the "aux ringer contact" instead of "paging contact." In programming, turn off the aux ringer for all "lines" and go in and turn on the ringer for the DN of the door phone only.

Now when you intercom the door DN, it will release the strike. If the door phone initiates the call, they simply "end" after talking and go back off-hook and enter the two digit DN to release.

Obviously you will have to assign a line pool so the cordless can get an outside line by dialing "9."

All station phones can release the same way, by intercom.

Thanks for the tip. I'll use that if I hear complaints about the present setup. I'll be stopping in again anyways in awhile just to "check in".

That would be easier for the cordless extension to release.

Dave

Glad to help.

Bring Scotch!

Will Do....any preference?

Dave

Twisted Pair....

Was in that town for something else today, so I swung around to the school to try your suggestion for the heck of it as it would be easier for these highly educated educators to open the door.

All I'd get at the door was a short burst for the release...a second, two at the very most.

Dave

The door phone auto-answers, so the Aux relay will only pulse briefly and release

Glenlevitt single malt. It's the only thing that should be drunk at the games.

:toast:

I always install my own strikes and power supplies so I guess I should go into a little more detail here. I use timer relays on the strikes so a pulse will trip the time delay relay and hold it for 5 to 10 seconds.

I believe a timer relay should always be used regardless of the release method, whether it be paging contact, ringer, or a simple button, it should be a consistent time. If you use the paging method and accidentally don't hang the phone up, the strike will stay engaged and depending on the duty cycle of the strike, it could burn out.

Page port has a programable disconnect timer. So even if by accident it's left off hook it will release.