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I would like download this Alarmprotocols but something is wrong.I was got answer(You don't have permission to access /ftp/MrEd/Alarmprotocols/ on this server.)Can you help me please?
As far as I know exist no standard. I've seen nearly everything, from systems that protects bank's to very low cost systems where you think "This won't secure my trash...".
In germany exists a organisation named "VdS" it is a group of insurance companys, they have declared "german standards" for different applications. They divide into 3 classes A -privat use(less valueables), B -middle buisiness use (I think up to 50000$), and C- everything else (banks, jewelery's). you can find something at www.VdS.de (they have also a english section).
I have seen one type that uses a lot of wires to distribute the lines to the alaram system.
Actually, DSC utilizes eight methods of alarm notification protocols with the first two on the list being quite common standards -- either one or two of the following may be used on any individual system: one for the first phone number dialed, the same or a different one for a second number:
These are programmed through any alarm pad hooked to the system using code  “Communicator Format Options.”
DTMF Contact ID is what most monitoring stations in the US choose to use. SIA FSK is second.
Sorry, the user's and programmer's manuals are on the DSC website, and are accessible only by username and password, but DSC can be contacted at http://www.dsc.com
DSC systems are Underwriter’s Laboratory listed, quite reliable, and economical through modularity. A DSC “Power 864” has monitored 54 channels of sensors at my business with zero failures in the last three year period.