ground start trunks disconnecting

[jeepguy267]

I have 8 ground start trunks in my trunk group. All were on the same board. My problem is with the last 3 trunks. they test good at the demark and on the definity side of the sneak fuse (the last stop before I punch them down on to the board and port). Each time I re-seat the board and then status the trunk group I can see all the lines go through their testing and such and eventually come on line, except for these 3 drop into a "disconnected" state.

remember I said they WERE all on the same board. I since move these three on to a different board and reasigned these ports in the trunk group. This was so I could re-seat the card without taking All 8 trunks down. I am getting the same results on the different board.

It wouldn't seem to be a telco issue since they test good with my test set. doesn't seem to be a port issue.

I am stumped. Any thoughts.....?

 

[TelcomAdmin]

Sounds like you have a tip & ring reversal coming from the d-marc. This will cause ground-start lines to show as "disconnected'. Try reversing the pair (jumper/cross-connect) at the port and then reset the trunk card.