Does anyone have any tips on this. I have a Hills Reliance R8 Alarm System 3 PIR Sensor with one Siren Box Temper It has 4 zone with zone doubling enable (ie 8 zones) Zone 1 to 3 is for the pir and zone 8 is for the siren box temper Please see attached photos. Click to view full size! Click to view full size! I'm trying to integrate a pushbutton arm/disarm switch. In the hills manual it state that you can allocate a zone to be a "Key-Switch" to arm and disarm the panel http://cdn.myld.com.au/2/289/msafe_0fa74ee7f9.pdf <-- manuals so I've program zone 7 to be the key switch. Program zone 7(3) via keypad This is the code I use. *8 9713 0# <-- standard program code 18# * * * * * * 30 * Exit Exit The system reboots. So I add a 3.3K resister to the 6.98K resister in series to zone 7(3) and in a sealed position. I then quickly remove the resistor and put it back on. The alarm is then supposed to change state, but nothing happens? Any ideas?