Answer:
The unit connects directly to 12V DC power adapters and accepts inputs from magnetic door contacts or reed switches configured for Normally Closed (NC) and Common (COM) dry contact operation.
The Essl KTI01003001E4DI interlocking controller is engineered with discrete terminal blocks designed for standard industrial security wiring:
- Power Source Compatibility: Connects to a standard external 12V DC regulated power adapter via the designated terminal pairs (Pin 1: +Ve Supply, Pin 2: -Ve Supply).
- Sensor Contact Compatibility: Compatible with door position switches, surface-mount magnetic contacts, and recessed reed sensors that deliver Normally Closed (NC) dry contact outputs back to the door sensor input terminals (Pin 1: Door Sensor I/P NC, Pin 2: Door Sensor I/P COM).
When a connected door opens, the NC loop opens, causing the controller to immediately hold the remaining three doors in a locked state until the active door returns to its closed state.
