line 1&2 shorted after ac power surge on CICS

[carolinamw]

After an AC power surge CO lines 1&2 are shorted out by the Nortel system. Line module is NT7B75AAAC. (Lines 3&4 are ok)(stays shorted even when AC power is removed) When I pull the line module out of the NNTM8456BG2R CICS KSU the short on lines 1&2 clears. I think this means the line module is bad. Do you think just the line module is bad or do you think the KSU is damaged also? Thanks, MWW

 

[norstarboy125]

Do you have any other available trunk ports where you could do some testing?

 

[carolinamw]

Just 3&4 on the same card and they work fine

 

[Deweyhumbolt]

Try one line on on either port 1 or 2. Does it work alone or not?

Adversity is Opportunity

 

[carolinamw]

No, line 1 or 2 will not work alone

 

[SupportDude]

You never really know what is damaged in the event of a power surge until you start replacing hardware.
Start with the Trunk Cartridge, it's cheaper and easier than replacing the KSU.

-SD-

http://www.mysupportguy.net

 

[hawks]

Put that Trunk card in the other slot of the CICS and see only 2 lines still work. If so then it is probably the card and not the CICS.

 

[carolinamw]

Thanks. I will try that. It is in the far left slot. Can I just move it one to the right? Will that affect the programming or line appearances?

 

[Dasheen]

yes. The lines will become 25-28.

 

[hawks]

Also make sure you power the unit down before removing or adding any cards.

 

[carolinamw]

Thanks, Will try these suggestions on next site visit, MWW