Recent content by john.extremenetworks

That's the big question Dan! I'm not sure if I'll install an Ademco or a Paradox system yet. Both use a 4 wire Keybus, with only 2 wires for communications. I can only assume that it's probably a proprietary variation of RS485 or a similar protocol. I might just have to bite the bullet and...

Yes, it needs to be a professional install. That's a good idea though. I just found a similar product from Visonic. 2 Zone Transmitter. Four of these would work with one of their receivers plus an expansion unit. I'd like to avoid this route due to batteries though. Ideally I need one...

Well, I seem to have hit a wall on my most recent project! I'm installing an alarm system spanning 3 different buildings in the same yard. Two of the buildings have cable buried between them, but unfortunately the 3rd one does not! In the building without cable, I have 6 sensors in place...

Depending on the zone valve mechanics, not all of them would be considered Normally Closed. The White Rogers valves I have used have a stepper motor inside that rotates the valve body. The "Thermostat" input line would need to be kept closed, but the valve is drawing very little power to stay...

My suggestion on valves is to stay away from valves geared toward the automation enthusiast! It seems all the automation products are priced very high for the product specs and possibly quality. If I was installing a valve, I would use "Zone Valve" type units. Often used in boiler systems for...