i usually don't work on these,but i went on a call and found on the the pri cards is defective
i ordered a new one now can i hotswap the card on an option 11 or i have to power down
thanks

Hotswap it.

thank you i rather ask than see smoke

All Nortel cards that will release smoke on hotswap have a warning label- Power must be turned off before card is inserted.

Of course the proper way is to disable the card FIRST in the software.
Once it is properly disabled, then you may HOTSWAP.
Then of course re-enable the card.

The TMDI cards are more tolerant than the DTI/PRI cards. Know your loads in case you have to enable the loop or bump the d channel.

well the guy that takes care of this client is in the usa,i just went there cause their pri was down i saw that they had to pri cards one had red lights on them so i powered the system down since they were already down i swapped the cards and powered back up they told me that the 2nd pri card is for overflow only if onother of their site would go down they would re route the calls to this place i don't know this system to disable the cards so if i power down and swap the card i should be good/???

It will reestablish if the circuit is good. You have to determine what red LED was on as that will tell if the card is disabled or in RED alarm. You may also have piggyback cards on the circuit pack to replace depending on which model it is.

Yes, go to LD 96
Dis DCH X (X= DCH#)

Then LD 60

DISL X (X= PRI loop)

STAT X (X= PRI loop)

It shaould say Loop X DSLB

The light on the old card should turn red.
remove old/insert new
LD 60 ENLU X (X= PRI loop)

STAT x (X= PRI loop)

you should see the loop enabled and up and the channels IDLE

then type SSCK 0

make sure the clocking is trtacking correctly

then type LCNT

look at the errors..
then type RCNT
to reset the counts ( you will get errors when taking the card oos..

Ed