Unable to resolve a POWER alarm in an MCC

fataldata · January 9th, 2007, 02:40 PM

I have an MCC with a minor POWER alarm and the following errors.

'Display Errors'
12 POWER 257 1 01/09/09:08 01/09/09:08 1 0 0 a y
12 POWER 1 0 01/09/09:08 01/09/14:25 43 8 4 a y

'test environment 12 short repeat 1'
TEST RESULTS
Port Maintenance Name Alt. Name Test No. Result Error Code
12 POWER 5 FAIL 8
All other tests pass.

According to the BOOK, this indicates a failure of the Battery Charger or the Batteries. I have replaced both and am still unable to clear the minor alarm caused by this. Has anyone experienced similar trouble with the Batteries or Charger? Or do you have any tips on resolving this error.

martinyoung · January 10th, 2007, 11:34 AM

The card that reports this problem is the TN775 in that cabinet. I have seen this problem before and the solution was to replace the TN775. The false alarm cleared once I did that.

OctelWarrior · January 10th, 2007, 06:49 PM

I had that same error and went through the same routine, fortunately we ended up taking out the PBX the next week, so we never got to the bottom of it :)

The next thing we were going to look at were the curls, or Current Limiters. I'm a newer Avaya tech, so the MCCs are ancient to me. I'm just repeating what I was told...

fataldata · January 11th, 2007, 07:39 AM

Thanks Marty, we will try replacing that TN775.

OctelWarrior, we thought about the Current Limiter but couldn't find any tests that would indicate it's failure.

dherve · January 11th, 2007, 02:02 PM

I don't know if you fixe your problem but I confirmed the problem should be with the TN775.
Replace it and problem will be fixe.

martinyoung · January 11th, 2007, 02:31 PM

Over the decades that I have been working with Definitys, and the 100s of machines that I have touched, I have never encountered a failure of the current limiter in service. They will fail if you put them in upside down and turn the PBX on but you will smell that immediately. I would put that possibility at the bottom of my list of possible causes.

ahays · January 16th, 2007, 07:40 AM

Quote:

Originally Posted by martinyoung

Over the decades that I have been working with Definitys, and the 100s of machines that I have touched, I have never encountered a failure of the current limiter in service.

I have ... once: Lightning Strike.

.al.

martinyoung · January 16th, 2007, 10:00 AM

Quote:

Originally Posted by ahays

I have ... once: Lightning Strike.

.al.

If it protected the switch, it did its' job.

fataldata · January 16th, 2007, 01:36 PM

So is changing a Tn775b service affecting? Can I hot swap? I cannot find any doc's to guide me....

martinyoung · January 16th, 2007, 01:51 PM

Not hot swappable. At a minimum shut off the A carrier but I would recommend the whole cabinet.

fataldata · January 18th, 2007, 08:39 AM

Well before I replaced the Maintenance pack, I went and tried another Charger battery combination and the alarm has since ceased. Oh well.

martinyoung · January 18th, 2007, 11:30 AM

Well, at least the alarm is gone and that is what your goal was.

January 9th, 2007, 02:40 PM	#1 (permalink)
fataldata PBXtech PLATINUM 300+ posts Join Date: Jul 2003 Posts: 309	Unable to resolve a POWER alarm in an MCC I have an MCC with a minor POWER alarm and the following errors. 'Display Errors' 12 POWER 257 1 01/09/09:08 01/09/09:08 1 0 0 a y 12 POWER 1 0 01/09/09:08 01/09/14:25 43 8 4 a y 'test environment 12 short repeat 1' TEST RESULTS Port Maintenance Name Alt. Name Test No. Result Error Code 12 POWER 5 FAIL 8 All other tests pass. According to the BOOK, this indicates a failure of the Battery Charger or the Batteries. I have replaced both and am still unable to clear the minor alarm caused by this. Has anyone experienced similar trouble with the Batteries or Charger? Or do you have any tips on resolving this error. __________________ Systems In Use: S8700 CM3.0 and S8710 CM3.1.1

January 10th, 2007, 11:34 AM	#2 (permalink)
martinyoung Moderator Join Date: Dec 2005 Posts: 1,401	Re: Unable to resolve a POWER alarm in an MCC The card that reports this problem is the TN775 in that cabinet. I have seen this problem before and the solution was to replace the TN775. The false alarm cleared once I did that. __________________ Marty Retired Avaya DSIC tech

January 10th, 2007, 06:49 PM	#3 (permalink)
OctelWarrior PBXtech SILVER 25+ posts Join Date: May 2005 Posts: 62	Re: Unable to resolve a POWER alarm in an MCC I had that same error and went through the same routine, fortunately we ended up taking out the PBX the next week, so we never got to the bottom of it :) The next thing we were going to look at were the curls, or Current Limiters. I'm a newer Avaya tech, so the MCCs are ancient to me. I'm just repeating what I was told... __________________ Peronally I'd rather lose phone access than data.

January 11th, 2007, 07:39 AM	#4 (permalink)
fataldata PBXtech PLATINUM 300+ posts Join Date: Jul 2003 Posts: 309	Re: Unable to resolve a POWER alarm in an MCC Thanks Marty, we will try replacing that TN775. OctelWarrior, we thought about the Current Limiter but couldn't find any tests that would indicate it's failure. __________________ Systems In Use: S8700 CM3.0 and S8710 CM3.1.1

January 11th, 2007, 02:02 PM	#5 (permalink)
dherve PBXtech SILVER 25+ posts Join Date: Sep 2004 Posts: 60	Re: Unable to resolve a POWER alarm in an MCC I don't know if you fixe your problem but I confirmed the problem should be with the TN775. Replace it and problem will be fixe.

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January 11th, 2007, 02:31 PM	#6 (permalink)
martinyoung Moderator Join Date: Dec 2005 Posts: 1,401	Re: Unable to resolve a POWER alarm in an MCC Over the decades that I have been working with Definitys, and the 100s of machines that I have touched, I have never encountered a failure of the current limiter in service. They will fail if you put them in upside down and turn the PBX on but you will smell that immediately. I would put that possibility at the bottom of my list of possible causes. __________________ Marty Retired Avaya DSIC tech

January 16th, 2007, 01:36 PM	#9 (permalink)
fataldata PBXtech PLATINUM 300+ posts Join Date: Jul 2003 Posts: 309	Re: Unable to resolve a POWER alarm in an MCC So is changing a Tn775b service affecting? Can I hot swap? I cannot find any doc's to guide me.... __________________ Systems In Use: S8700 CM3.0 and S8710 CM3.1.1

January 16th, 2007, 01:51 PM	#10 (permalink)
martinyoung Moderator Join Date: Dec 2005 Posts: 1,401	Re: Unable to resolve a POWER alarm in an MCC Not hot swappable. At a minimum shut off the A carrier but I would recommend the whole cabinet. __________________ Marty Retired Avaya DSIC tech

January 18th, 2007, 08:39 AM	#11 (permalink)
fataldata PBXtech PLATINUM 300+ posts Join Date: Jul 2003 Posts: 309	Re: Unable to resolve a POWER alarm in an MCC Well before I replaced the Maintenance pack, I went and tried another Charger battery combination and the alarm has since ceased. Oh well. __________________ Systems In Use: S8700 CM3.0 and S8710 CM3.1.1

January 18th, 2007, 11:30 AM	#12 (permalink)
martinyoung Moderator Join Date: Dec 2005 Posts: 1,401	Re: Unable to resolve a POWER alarm in an MCC Well, at least the alarm is gone and that is what your goal was. __________________ Marty Retired Avaya DSIC tech

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