A short on pair two can take down four or eight stations on a card.
Pull the connector, use an adapter that brings out pair 1/2 out to an rj
14 to test with one phone.
Also, you can swap the upper card and lower card to verify that a card
is at fault. Also, power off the system for a few minutes, then back
on, we have had cards do a cmos "lockup" that will clear. Also some
early cards had a design problem, that with time, will no longer support
all eight dpits connected.
And finally, it's possible to pop a card if someone connects a station
port to a pc network card for period of time, the pulse transformer for
that port will overheat and short. ("I thought it was a modem in the
pc") A nic card resistance will not trip the protection circuit.
some ideas, good luck, there are cards available from folks on the group.
-larry / dallas
Jim McAtee wrote:
>We appear to have just lost jacks 1-8 on our KX-TD1232. I've cycled the
>power on the KSU and reseated all of the cables. Is there anything else I
>can do to troubleshoot the problem?
>
>There are two 8EXT modules on the box, giving us 32 extensions. Is there
>any chance that a malfunctioning module could affect the first 8 jacks?
>
>We have a number of unused extensions, so I suppose I can just move the
>extensions to the jacks on the other cards. I don't suppose there's
>anything I can do but reprogram extension numbers if I want to people to
>maintain their same extension numbers?
>
>Thanks,
>Jim
>
>
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