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#51897 09/12/03 11:20 PM
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barster Offline OP
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I just acquired a GMX-48..upon hooking up a phone on the display I get "SYSTEM LOCKOUT" ...and sure enough..cannot access any features...no intercom..etc. I reset/ initialized. ....no change. Any suggestions??? PS. Nothing on the main PCB ..SYSTEM LOCKOUT on two expansion boards.

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#51898 09/15/03 06:06 AM
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Just making sure you know this is a 3 pair system with the blue pair reversed.


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#51899 09/15/03 01:05 PM
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Yes ... the phones run off three pairs..and I have the blue /tip/r. reversed. It turns out the phones I used on another GMX48 don't work on this one..they give "system lockout" -660.7600-phones. The phones that do work on it are the 662.3400..apparently different chips in the KSU's. However, I can't get any phones to "come up" on the main KSU 662.1000 still--ODD..the main KSU doesn't fire up phones but the expansion modules do!? -repair time...

#51900 09/19/03 09:30 AM
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Have you checked the fuse on the main board?


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#51901 09/23/03 01:41 AM
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barster Offline OP
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The fuse looked fine....but indeed after switching to different module discovered it was bad. Thanks Dr Comm.!

#51902 09/23/03 04:05 PM
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Sorry it took me so long to think of that.


Voice and Data Cabling in DFW, [email protected]
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