ever heard a fax machine or dial up before? probably sound something like that.
a DACT dials a DACR and sends some packets of information, which then a live operator at a central station receives through some fancy software usually, and they turn around and call whoever they need to call. not much to listen to coming out of the DACT.
The system that Andrew and I designed would be something beyond what you could do.
Because it’s a PBX (phone system) running in Linux and a bunch of scripts that sort the incoming messages and acts based on the settings from a couple of things.
It’s not easy, all alarmreceiver() does is translates the signal from the panel to a number string and dumps it into a text file. What you have to do then is disassemble that number string and interpret all the groups of digits.
## # ### ## ### # = how the string is divided into groups of digits. Now for an example:
The dialer will be set up for Contact ID or one of the SIA codes. A lot of dialer O&Ms list out what it sends for each type of event. I’ve had to do similar to integrate a fire alarm system to a Tyco SWH security system.
Might be worth looking up the O&Ms on a few DACR’s too, like a Radionics D6600 or a Silent Knight SK9000 so you can get familiar with out they operate.