Hello,
I am trying to solve
a problem that I can foresee when I deploy Asterisk into a few SOHO situations
soon. In Nebraska and in my area of Western Pennsylvania we have violent
thunderstorms in spring and summer and sometimes very heavy wet snow in
Winter. Both type of event will take out the power of a period of 30sec to
36-hours. So no UPS system would be able to handle a system for over an
hour. So what I am wanting to build or buy is a device that when normal
power is on and we have battery output on a FXS that the line dumb analog phone
talks to asterisk, but when the UPS has shutdown and our phone system goes down,
thus no battery signal on the line it switches that same dumb analog phone to
the outside Analog trunk. This was the users can make and receive any
emergency calls while the power is out.
I have the basic
concept of how this thing should work but not enough knowledge of telephone
electronics to build it. I think this should be an essential part of any
PBX that supports analog lines and would be willing to pay a reasonable price
for it.
Next sort of on the
same topic. Does anyone have a diagram or know of some where you can buy a
single or dual port Cisco power inserter. I want to put the Power Adapter
for my 7960 over on the UPS so that the phone on my desk doesn't die right away
when the power flickers or goes out. My battery a APC Back UPS Pro 650
holds the Asterisk server (Athlon 850 w/ 384 mb ram, X100P, Netgear FA311
10/100, Kinkston 10mb ne2k-pci clone, S3 Savage clone video, IBM 15GB, IBM 60GB,
IBM 80GB IDE drives and four fans) Westtel DSL modem, Netgear 10mb hub (outside
interfaces), Intel Pro 8-port managed switch (inside interfaces) for 25-30
minutes and that is usually enough for the power company equipment to reset
around here.
Thanks
---
Shawn L. Djernes,
N0PEU
Djernes.org
PH: (412)-257-3252
519 Washington Ave. #2, Bridgeville, PA, 15017,
USA
