FIR103 PEC X and FIR104 PEC X errors

[robbot]

Hi,
i am getting the following errors on my 81c.

FIR103 PEC x and FIR104 PEC x y

I have 11 fibre remotes and this error occurs on most of them from time to time. I have checked the fibres and they seem to be ok. Any ideas what could be causing this?

They are running over multimode and the distance is less than 100m.

Cheers

 

[PERRYPJ]

Yyour Phase Locked Loop (PLL)lock lost on FPEC and the second is saying it has regained lock on FPEC.There is no warning about contacting TAC, what is causing it WHO KNOWS.
I've found out if no one is complaining about a trouble I don't go looking very hard. OLD ROLMEN WORKING ON NORTELS