Glossary
Term
|
Description
|
ICM |
Compass Intelligent Controller Module |
IIM |
Compass Intelligent Input Module |
Input |
A device that provides information to a panel so it can make event or alarm decisions.
|
Input Supervision |
Detects if someone has tried to tamper with sensors/locks. These attempts can be detected by
sensing multiple voltage levels at the door position switch.
Inputs can be configured in up to 4 states.
2 state devices are like a light switch. On or off.
3 State devices with a resistor in series can determine whether an input is active, inactive,
or not short circuited.
3 state devices with a resistor in parallel can determine whether an input is active,
inactive, or the circuit is not open.
4 state devices have both parallel and series resistors and determine whether an input is
active, inactive, and the wiring is open or shorted. |
Inrush |
The initial surge of current through a load when power is first applied. Lamp loads, inductive motors, solenoids, and capacitive loads all have inrush or surge current. Resistive loads, such as heater elements, have no inrush. |
Interlock |
A system of multiple doors with controlled interaction. Interlocks are also known as light- traps, air-traps, man-traps, and sally-ports (see security interlock). |
IOM |
Compass Intelligent Output Module |
IRM |
Compass Intelligent Reader Module |
|