asterisk users - Mar 2005 - 7960 Dies when network cable connected

Hey All,

I have a user whose Cisco 7960 died the other day. When you disconnect the
Ethernet cable the phone boots (as far as it can w/o network connectivity)
but as soon as you plug in the CAT5 it goes dead. (no lights, no sound, no
display, nothing)

I tried to contact Cisco but they say I have to contact the vendor. I have
sent an email to the vendor (www.thevoipconnection.com) and I am waiting to
hear back from them.

I have asked Google in every possible way I can thing of and I have come up
empty handed. Anyone have any ideas?

Thanks,

~c

Christopher Jacob wrote:
>Hey All,
>
>I have a user whose Cisco 7960 died the other day. When you disconnect the
>Ethernet cable the phone boots (as far as it can w/o network connectivity)
>but as soon as you plug in the CAT5 it goes dead. (no lights, no sound, no
>display, nothing)
>  
>
Christopher,

Just as a total guess, check to be sure the PoE portion of his cat5 
cable are not either grounded, or touching
each other.  Also, be sure he's not connected to a PoE capeable switch 
since cisco is reverse polarity of the
PoE standard.
Niles