General Procedures / Information
6-86 12/04 FaxCentre F110
Parallel Terminal Equipment Off-Hook(FCU On-Hook)
The line voltage change due to an parallel off-hook condition has some effect on polarity reversal
detection (On-Hook state). A change of the line voltage may result in a short pulse of the ring sig-
nal and a invalid polarity reversal detection !
Parallel Terminal Equipment Off-Hook(FCU Off-Hook)
Due to the possibility of connecting a parallel terminal equipment which, when also internal Off-
Hook, reduces the line voltage which may result also in a reduction of the loop current. This line
voltage change may also introduce an polarity reversal detection pulse !
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