BLASI – NUM 411
The BLASI NUM 411 is a specialized interface module within automatic revolving door control systems, providing essential signal conditioning and isolation between field sensors and TA-4 logic boards. This compact PCB processes inputs from safety edges, photocells, occupancy detectors, and manual switches while delivering clean, isolated output signals for reliable controller operation. Featuring optical isolation, surge protection, and diagnostic LEDs, it prevents electrical noise interference and ensures precise safety circuit performance. Critical for maintaining certified signal integrity in high-traffic commercial installations.
Product Details
The BLASI NUM 411 serves as the vital signal interface between harsh field environment sensors and sensitive TA-4 control electronics, employing galvanic isolation to protect logic circuits from electrical transients, ground loops, and EMI common in entrance applications. Precision signal conditioning maintains photocell response accuracy, safety edge sensitivity, and switch contact reliability while surge suppression protects against lightning-induced voltage spikes prevalent in Dubai’s climate.
Multi-channel design supports simultaneous monitoring of perimeter photocells, swing path detectors, entrapment zones, and manual overrides with individual diagnostic indication for rapid fault isolation. Conformal coating and sealed connectors ensure long-term reliability in humid, dusty environments while plug-compatible replacement preserves field wiring integrity during service calls.
Integration with Service-IBS diagnostics enables comprehensive input verification testing required for safety recertification. Essential for preventing false safety triggers and maintaining regulatory compliance, the NUM 411 guarantees precise hazard detection across hotel lobbies, office buildings, hospitals, and retail facilities where signal reliability directly impacts passenger safety and operational continuity.
Article No: 8990084
Additional information
| Brand | BLASI |
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