Problems with 4 pair paging horns

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TheOriginalJames

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A little background. Three years ago the company I work for pre-wired a rather large warehouse off of US 30 just outside of Columbia City, near Fort Wayne in Indiana.

The bill fit among 30 some odd Comdial phones and 30 some paging horns. A few weeks ago the company tried to separate the paging horns into a North and south designation for whatever reason. After trying for a week to get it to work, they decided they were going to hold off on it. So we went back and put everything back the way it was. Now comes the problem.

The back 6 horns do not work. Me and my partner Sam spent all day friday trying to get them to work with no avail.

Here is how the building is set up.

Main phone room.

Two Valcom paging units control the whole setup. The paging ports from the system come from the Violet/brown pair, and the 24v power comes from the Violet/slate pair.

These go through three different mezzanines. We traced the paging ability through Mezz. 1, 2 and 3. All three mezzanine blocks have the optimum power and ability to page as tested from the cordless and our test set where we HEARD the pages. Yet the back 6 speakers still will not work. We replaced everything except the horns and wiring going to them in a failed effort to get them to ring.

The horns all have the volume turned up and they're all getting power to them.

What could the problem be?
 
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TheOriginalJames

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Well, most are about 14 or so feet in the air, and there's absolutely no way to get a scissor lift into them. The one that we did test in the hallway was dead. We had a test page off the test set, but nothing was coming through the speaker. So we found that the paging ability was shot on that speaker.

The rest though, everything should work. It's acting like they are all shorted out for some reason. They were working on Thursday before my partner left, but Friday we had nothing.
 

TheOriginalJames

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image-apic654.jpg


That horn that isn't working off the second mezzanine we found is the ceiling speaker not working.
 

lemon

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the machines are starting to take control!!!! run!!!

...

mezz three has all of the connected horns out...
mezz two has all but one of the connected horns working...
mezz one has all of the coneected horns working....

maybe in the mezz themselves, there is a short... (i dont know what a mezz is, but maybe its like a switchboard... and switches(one in mezz 2, all in mezz3) have shorted out... :dunno
 

redsMULLT1

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Re: RE: Problems with 4 pair paging horns

lemon said:
the machines are starting to take control!!!! run!!!

...

mezz three has all of the connected horns out...
mezz two has all but one of the connected horns working...
mezz one has all of the coneected horns working....

maybe in the mezz themselves, there is a short... (i dont know what a mezz is, but maybe its like a switchboard... and switches(one in mezz 2, all in mezz3) have shorted out... :dunno



A mezz (mezzanine) is a upstairs office or conferance room.
 

TheOriginalJames

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Yeah, basically a mezzanine is an upstairs "control" room. Basically it's where the furnaces/AC systems and electric center points are in the building. It's also where we connect the entire building to the phone system in the main phone room.

All we're dealing with are 66 blocks which have 25 pair cables (50 individual copper wires, color coded) punched in on them. All the speakers are bunny hopped together, but only the back 6 don't work.

I find it a really odd coincidence that all SIX of the speakers would blow at the same time, but there has to be a central problem.
 

TheOriginalJames

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hmm...

turns out to be a wiring issue.

Some of the speakers appeared to be bunny hopped. My coworkers said they reran some of the feeds and everything seems to be working again.

Glad I didn't have to go back more than 1 day.
 
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