The SIRENA SEO SEV PCS is the central processing unit of the ESCAPE evacuation warning system, designed for industrial facilities requiring compliant emergency voice and sounder evacuation. It addresses and supervises up to 254 devices — including sirens with 4 IN/4 OUT and double line isolators, call points, and accessory modules — distributed across one or two serial loop lines each extending up to 2,500 meters.

How does the multi-unit networking architecture work?

Up to 64 SEO SEV PCS control units can be networked via two serial ports, with one unit designated as the primary controller. This architecture scales from single-building installations to multi-building industrial complexes and campus sites. Each siren module incorporates a double line isolator, ensuring that a short circuit or device failure on one section of the loop does not disable sirens on the remaining segments. The system can be expanded incrementally by adding control units and loop devices as site requirements grow.

What does the 4-level continuous monitoring cover?

The system performs 24/7 automated supervision across four levels: Level 1 — mains power availability (constant), Level 2 — battery efficiency (every 24 hours), Level 3 — siren functionality testing (every 24 hours), and Level 4 — line integrity monitoring (constant). All anomalies appear in real time on the graphic LCD with date/time stamp, device identification, location, and fault type. The event log stores up to 1,000 entries for compliance auditing. The metal enclosure (RAL 7035, 385 × 520 × 110 mm) houses the control electronics, power supply, and battery charger.

What alarm levels does the ESCAPE system support?

Four alarm levels correspond to different evacuation phases: Level 1 — Warning (amber visual indication), Level 2 — Evacuation (red), Level 3 — All Clear (green), and Level 4 — Fire Alarm (optical panel). The three relay outputs (free changeover contacts) interface with fire alarm panels, BMS, and auxiliary equipment, while five to six digital inputs accept external clean-contact commands for remote activation. RS-232 and RS-485 ports connect to PC programming tools, remote display repeaters, and I/O expansion modules.