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Joined: May 2003
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You put in small unit for phones and IT comes and plugs in all their stuff.
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Joined: Jun 2006
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Moderator-Nortel, Computers, General
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Moderator-Nortel, Computers, General
Joined: Jun 2006
Posts: 8,735 Likes: 12 |
I always mark mine with a P-Touch (largest font) "For Telephone Use Only".
At one client the IT guy had done exactly that, so I asked him why, He said for power backup in case of a power failure. I then asked him how many of his computers would work without power. The look on his face was priceless!
Scientists say that the universe is made up of Protons, Neutron & Electrons. They forgot "Morons".
Dave. (CTUB) Canadian Techs Use Bix!
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Joined: May 2003
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Joined: Nov 2006
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I went to replace APC ups and the same problem happened again after powering down the Nortel Cics and Call pilot 100, ,the system telephones don't reboot back to normal , the don't work until i pull off all telephone jumpers for digital phones and punch them down 1 at a time , i guess the system most have been corupted or power supply has been damaged and does not handle a full reboot, unless i take jumpers off ?
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Joined: Sep 2006
Posts: 3,290
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We are all here to help, and I wish to offer some advice in the most gentle way possible. You have gone through some weird operations of trouble-shooting that have wasted your time and made you confused and frustrated.
First, you swapped out an entire system, and the problem was probably just the incoming power. You still don't know if that's really the original cause. Now you suspect that the power supply is damaged, after all.
Finally, you are using up your time by pulling out cross-connections and re-terminating them ???!!! For goodness sakes, wouldn't it be more efficient to just go around and unplug the phones? Or unplug them right at the KSU?
Now that you think you have a reliable UPS, by-pass it, and plug the system directly into commercial power. (Have you measured the power at the receptical?)
Do you have (from one of your earlier attempts) a spare power supply? Can you swap it in a reasonable time frame?
Arthur P. Bloom
"30 years of faithful service...15 years on hold"
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Joined: Dec 2007
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Arthur remember when you were in the field and starting to go around in circles on a case of trouble? You'd go sit down in the coffee shop have a cup of coffee and talk about something else; and all of a sudden the light would come on and you'd have the trouble fixed. part of being some of the old true blue telephone men.
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Joined: Nov 2006
Posts: 712
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We are all here to help, and I wish to offer some advice in the most gentle way possible. You have gone through some weird operations of trouble-shooting that have wasted your time and made you confused and frustrated.
First, you swapped out an entire system, and the problem was probably just the incoming power. You still don't know if that's really the original cause. Now you suspect that the power supply is damaged, after all.
Finally, you are using up your time by pulling out cross-connections and re-terminating them ???!!! For goodness sakes, wouldn't it be more efficient to just go around and unplug the phones? Or unplug them right at the KSU?
Now that you think you have a reliable UPS, by-pass it, and plug the system directly into commercial power. (Have you measured the power at the receptical?)
Do you have (from one of your earlier attempts) a spare power supply? Can you swap it in a reasonable time frame?
Its the original system , if i pull off the amphenol , dosens't make a difference , i already bypassed the ups and original outlet, i have to pull 1 side of the jumpers to the telephones and repunch 1 of the time, thats why i think it maybe the power supply, its weird problem i haven't seen before.
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Joined: Sep 2006
Posts: 3,290
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Jim, no, I don't remember replacing any systems, without first doing some basic trouble-shooting steps. But then again, I am inept at most things non-telephonic. Telephony trouble-shooting is the only thing at which I excel. It just seems to be something that was hard-wired into my brain at birth.
Atechguy: I still wonder at the method of pulling off cross-connections, and then re-terminating them. Why can't you just unplug each phone, right at the desks, and then re-plug them?
Have you watched the output of the power supply rails with a DVM, first with no phones attached, and then when you do the re-attachment of the phones? If you really believe that there is a power supply issue, go back and replace it with a known working one.
Have you visually inspected the electrolytics on the PS board? Do any of them exhibit swelling at the tops? There may indeed have been a power surge when Sparky was working on the generator. It may have caused a marginal cap to go bad.
Arthur P. Bloom
"30 years of faithful service...15 years on hold"
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Joined: Nov 2006
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Why walk around to 12 telephones , when i can do it at the terminal block ,its faster without interrupting all those people, i have electronics certificate , and have replaced caps ,on Samsung systems, i will have to take a look at power supply and test. Thanks
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Joined: Sep 2006
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12 phones??? I thought we were talking about a big system.
Because every time you remove and then reterminate a cross connection, you introduce another possible failure. Because the wires get shorter. Because you might swap them by mistake. Because it's a waste of time.
Since the system is not working properly to begin with, what's the big deal in unplugging a few sets for a minute or two? You've already theorized that the current drain is causing the PS to fail. Now it's time to prove it by watching the supply with a meter.
Arthur P. Bloom
"30 years of faithful service...15 years on hold"
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