So I have an electrical box with tamper sw and 2200 ohm resistor in series, zone definition is set to 09-tamper sw, type is 0-EOL hardware and everybody is happy for about 7 years, until now.
Today the keypad started chirping and announcing that this zone was violated.. (system disarmed)
Siren did not get energized.
This was reported to alarm monitoring company.
So walked outside and didnt have to kill anyone breaking into my electrical box, because there was no one there??
So looked on RP2 and the status of that zone (while keypad is chirping) is normal with voltage of 7.1V.
Put my meter on zone loop and it was 2.2K disconnected from M1 and when in circuit, voltage was 7.1..
why didnt it set off siren? its like it was half violated??