[email protected] wrote: > > Hello. > > > > I am looking for details of the maximum allowed/usable/effective > wire/cable length of the connection from a FXS port of Digium analog > cards to the analog telephone handset. > > > > To clarify my intention, I need to have an analog telephone connection > to my asterisk box that is 3000 meters (3km) away at least. If you > have any details of ATA boxes or other similar devices that I could > use to do this, I'd appreciate your input. It must be able to use a > regular analog telephone handset on the far end. > > > > I've searched high and low and either I'm not clever enough in using > the right terms for this or it is rarely documented? > > > > Any details much appreciated. > > > > Thank you! > > Baldvin > > > It's not expressed in distance. They will supply the current & voltage output and you need to apply ohm's law. That requires knowing the resistance of the cable which is dependent on length and gauge.
Lyle Giese LCR Computer Services, Inc.
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