AnotherOne
Active Member
I have a gate about 900 feet from the house. There's a phone cable running to the gate with a twisted pair connected to the controller such that when the pair is shorted together the gate opens. This is connected to Out 3 on my M1, so when an alarm condition occurs, I can open the gate for the fire / police. Another twisted pair goes to the "phone" on the gate so someone can call the house to get in - you press "9" on the phone to open the gate.
So, today I discovered that the pair going to Out 3 has an interesting characteristic. When the gate is closed, it has 29.3 Volts on it and when the gate is open (via "9" on the phone or "###" on the phone which says just open the gate and keep it open) is has 0 volts. I figure this has very little current since it's on 20 guage wire 900 feet away.
So, I'd like to get this into an elk zone so that I can have rules for the gate opening and closing and being opened at night.
What's the best way to connect this to an input sensor on the M1 - would I use an Elk senisitive relay and a resistor to get the load down to 24 volts or is there a way to directly connect it to a sensor. Note, it will still be connected to Out 3 so this would be added on in parallel to the out 3 wires.
Thanks.
So, today I discovered that the pair going to Out 3 has an interesting characteristic. When the gate is closed, it has 29.3 Volts on it and when the gate is open (via "9" on the phone or "###" on the phone which says just open the gate and keep it open) is has 0 volts. I figure this has very little current since it's on 20 guage wire 900 feet away.
So, I'd like to get this into an elk zone so that I can have rules for the gate opening and closing and being opened at night.
What's the best way to connect this to an input sensor on the M1 - would I use an Elk senisitive relay and a resistor to get the load down to 24 volts or is there a way to directly connect it to a sensor. Note, it will still be connected to Out 3 so this would be added on in parallel to the out 3 wires.
Thanks.