I am considering the purchase of a Konnected Alarm Pro to replace my legacy Brinks system. I understand how to replace the system but my question is along the lines of wiring of the sensors to the Konnected device. On the Brinks system, there are 4.7k resistors across each sensor and Common (ground). Do I need to keep these resistors when I wire the sensors to the Konnected?
As far as I'm aware the only device that requires a resistor when connected directly to the Konnected board is the DS18B20 Temperature probe.
That's how I understand it too. I believe the konnected board has resistors (and diodes for surge protection) on each input already.
@nate would know for sure, thought of course.
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Your existing alarm system would use the "end of line" resistors to determine the state of the detector I.e. open circuit, closed circuit, tamper short circuit, tamper open circuit. Each state gives a different resistance the panel can read. You will need to remove these resistors and possibly change the wiring/connections at the sensor end so you have just normally closed switches (alarm & tamper circuits).
Be aware that some PIR (motion sensors) may have the resistors built in too so you might have to find the data sheet for them to see how to bypass them.
