Hi,
I'm in the need to use a line extender. I found a device, which should best be placed in the middle of the line, which would make power supplying difficult, unless I'd use its "telco power supply" features:
The device is capable of taking current from one signal wire pair or voltage from the potential difference between both pairs.
Both methods seems to be a sort of standard in telecommunication technics.
Ok, it's not difficult to separate a MHz-signal from a constant current or voltage, but I wonder, if feeding power to the line would interfere the digium card. I assume the line is total potential free, so it would not interfere.
Are there any experiences?
Roger.
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