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Joined: Aug 2011
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Hi Folks,

We have a two cabinet v4.7 7400 that has been having intermittent connections issues. We haven't been able to catch it in action but looking at the alarm history, recently we are seeing a series of entries as follows:
MJD23 L2 Disconnect c1-S05-L2 (sometimes L1)
MJD24 L2 Connect c1-S05-L2
MJD23 L2 Disconnect c1-S05-L2
MJD07 Blue Alarm c1-S05-L2 (sometimes Red Alarm too)
MJD08 Blue Alarm Rec c1-S05-L2

If there is a list of the alarm codes, I can't seem to locate it in any of the installation or programming manuals.
Any and all help greatly appreciated.

-Will




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Codes are listed at the end of 7000 series program guide.
L2 disconnect means the pri card loses layer 2 and is almost always a carrier issue.

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https://en.wikipedia.org/wiki/Digital_Signal_1#Alarms


This will be a carrier fault like Genesiscomm said.

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Thanks guys, I found the list just after I posted. As usual, you guys rock!



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