April 29, 2015
Understanding Relays – Simple switch? Or magical alarm component only the pros can understand?
The answer? Simple switch. There are two types of relays, powered and un-powered. Both types of relays are designed to allow power to flow through them, the big difference is that a powered relay will already be connected to a power source (with our system it is typically a 12VDC or 24VDC source) while an