Interlock systems control the locking of two or more doors, such that if one door is open or unlocked, the remaining doors refuse access.
Each door is electrically locked and monitored. The control electronics then generates a control signal to indicate when the door is closed and secure. Each controller also has a control input that will prevent the releasing of the locking device. By cross connecting these control signals, the door controllers communicate the door status, and only open one door at any given time.
The simplest interlock Access Control System would have two doors and standard systems can be made up to four doors. Individual doors may be controlled by an online or stand alone controller and / or an interlock controller.
2089 Interlock Controller
2089D Interlock Controller 2 Door
These controllers provide all the electronics to control and monitor a door and provide interlock with another door. Trigger inputs drive a lock timer that can be adjusted from 3 to 40 seconds. Door monitoring allows door forced and prolonged door open alarms to be generated. Note the current limit of the mains derived supply is 2.0 amps at either the 12 or 24V setting. However 0.5 amps of this should be reserved for charging the batteries and running internal electronics. This leaves 1.5 Amp DC for externally connected loads.
2069 4 Way Interlock Programming Module
For use with any combination of access controller and or interlock controller (2089, 4163, 4001). Allows easy and flexible programming of interlock systems. Greatly simplifies wiring and system debugging. This unit takes its supply from the other controllers. A 12 way DIP switch allows the interlocking to be programmed in any combination. On board indicators show current interlock signal status.
An “Interlock Programmer” is used to greatly simplify connecting these controllers together. It also allows for easy and flexible programming of the interlock system. A 12 way DIP switch allows the interlocking to be programmed in any combination. On board indicators show current interlock signal status.