techma

I am having trouble with my modem line when my switch Definity Si 8.4 Duplicated SPE interchanges over from the A carrier to the B carrier my modem line doesn't answer. This was upgraded from an R4. The switch works fine otherwise but if there were a problem I wouldn't have remote access. Does anyone know why this might be? I have checked to make sure that all of the cables are correctly connected like the ICCA and ICCB.

martinyoung

It has been a long time since I did an upgrade from an R4 but I seem to recall there was a hardware element involved going from R4 to R8. At the minimum it was processor and TDM bus cables. Were these parts upgraded also?

Your INADS connection on an SI is through the processor board so it is possible that the port is nonfunctional on one of the processors (these boards will be refurbished, not new). Test this by swapping the processors between A and B, when the switch comes back up make sure SPE A is active and try to dial in. Then interchange the switch and try again. If you can access the switch from SPE B now but not SPE A then you have a bad port on the processor in SPE A.

__________________
Marty
Retired Avaya DSIC tech

PBXtech.info

 

techma

This happens to be an Si running in a refrigerator cabinet and only the boards were changed out. There's a TN790B, TN792, 794/2400 and those were the only boards switched out. No other changes were made to the switch. I recently discovered that one of the Emergency Transfer switches on one of the processors was set to "OFF". Would that cause it to not answer when it the SPE is interchanged to "B"?

martinyoung

No, the Emergency Transfer switch being off would not stop the modem from working. All that does is keep the switch from activating the external emergency transfer panels, if you have any. That switch being off should have generated an alarm though.

Have you tried the other part of my message, rolling the processors to see if the problem follows?

__________________
Marty
Retired Avaya DSIC tech