In the eSSL Interlocking System 3 Door - Without Memory (Ref: KTI01003001DR03), "without memory" signifies an autonomous hardware architecture that operates purely on real-time logic execution rather than transaction recording. The controller does not store timestamped access logs, card swipe histories, or entry/exit event records in internal non-volatile memory.
Instead, the embedded microcontroller continuously polls door feedback lines and entry switch inputs (SW1, SW2, SW3). When any one door is opened, the controller immediately engages interlock inhibition on the other two doors. This design provides maximum operational reliability and immediate response times in environments such as cleanrooms, gowning airlocks, and laboratory containment areas where physical sequencing is strictly required without the overhead of audit database management.
