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Joined: Sep 2006
Posts: 3,290
Member
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Member
Joined: Sep 2006
Posts: 3,290 |
One of our friends in the TCI has come up with a modification (ISTR cutting one trace and adding a resistor) for 400D cards made before revision 15, that allows the cards to respond to bridged ringing, rather than grounded ringing. Maybe the ones in the auction have had some modification done to them that converts them for that option.
Arthur P. Bloom
"30 years of faithful service...15 years on hold"
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