On Mon, 2003-07-14 at 10:42, Reed Wade wrote: > The best solution would be an enhancement to the X100P card. > > If the 2nd RJ jack was a pass through for the line except > when the card had power and was initialized. Some kind of > watchdog functionality would also be nice so that if, for > example, Asterisk dies then pass through functionality would > take effect after n seconds. > > This would probably mean adding a relay to the board which > would raise to cast a little. But, as the original poster > indicated this is critical for a serious system.
One wouldn't use a X100P in a "serious" system. Maybe a appliance expected in the home, but then again in such a system you would probably wire up a adapter that could bridge all the lines together and connect them to a single outside extension on power failure. This way on failure, you revert to a single line analog setup. Possibly with a transformer on the loop to help out with ren limits. > An alternative would be an extra relay box, maybe powered by > USB. One mode could be to switch based on presence of power, > another mode could require periodic watchdog pings via the > USB. I always wanted to build something using a USB flavored > PIC... Only if you aren't pulling power from the USB bus. There isn't much there. > I can see this for small offices (like ours). We have 4 incoming > lines in a hunt group. If Asterisk is not running I want one of > those lines to ring the receptionist (maybe using a simple dedicated > phone since they'd otherwise have an IP phone) and the others looped > for busy. > > I can see a box with USB and 12 RJ jacks (4 x (1 in, 2 outs)) to make > that work. > > Would anyone buy a product like that? > > -reed > > > > At 07:12 AM 7/14/2003 -0500, jltaylor wrote: > >This power failure thing does not have to be complicated. > >A few solutions come to mind: > > > >1) A 3,5,12 (whatever is needed) power supply (wall wart)used with a relay > >(DPDT). When the wall wart has power, the computer takes the call. When > >power fails, the POTS line "falls" in to place. > >Now, this does not "delay" while the computer is booting up. > > > >2) A "basic stamp" computer - about $25-30. It has 8 programmable i/o > >pins that will drive relays. One pin monitors either a wall wart or 5v > >from one of the plugs on your computer's power supply. When pin 1 goes > >low (no power) relay kicks in to bypass computer and connect POTS line > >direct. When power returns program jumps to a "sleep" or delay statement > >for xMINS until computer boots. And then releases relay for "normal" > >operation. www.parallaxinc.com and resellers. > > > >James Taylor > >[EMAIL PROTECTED] > >903-793-1953 > > > > > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users -- Steven Critchfield <[EMAIL PROTECTED]> _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users