Addressable Peripheral Devices
Activate protection the moment it’s needed
Enhancing Safety with Intelligent Integration
At Harsha Engineers, we provide a wide range of Addressable Peripheral Devices that extend the functionality of fire alarm systems and ensure seamless operation across diverse environments. These devices play a critical role in connecting, controlling, and monitoring additional safety equipment—making addressable fire alarm systems more flexible, reliable, and powerful.
How They Work
Peripheral devices act as intelligent interfaces between the fire alarm control panel and external equipment. Through unique digital addressing, they provide accurate identification and control of devices such as sounders, strobes, modules, and relays. This ensures that every action—whether triggering alarms, shutting down HVAC systems, or unlocking emergency exits—is executed precisely when needed.
Addressable pull stations and call points are essential manual fire alarm devices that allow building occupants to raise an immediate alarm in case of fire or emergency. Unlike conventional devices, addressable versions communicate directly with the fire alarm control panel using a unique digital address. This ensures precise identification of the activated device and provides real-time status monitoring, making them an integral part of Harsha Engineers India’s intelligent fire detection and automation solutions.

Unique Device Addressing: Each pull station/call point has a digital ID for pinpoint location tracking.
Two-Way Communication: Continuous communication with the control panel ensures real-time updates.
User-Friendly Operation: Simple pull-down or break-glass design for quick activation during emergencies.
LED Status Indicator: Provides local visual feedback when the device is active or in fault condition.
Resettable / Non-Resettable Options: Available in both styles for flexible usage.
Robust Construction: Built for reliability in harsh industrial and commercial environments.
Integration Ready: Works seamlessly with Harsha Engineers India’s addressable fire alarm panels and automation systems.
Precise Location Identification: Instantly shows which pull station was activated, reducing response time.
Enhanced Safety: Provides building occupants with a quick, reliable method to raise an alarm.
Minimized False Alarms: Advanced communication protocols reduce chances of accidental system-wide alerts.
System Resilience: Integrated with loop wiring; devices remain functional even if part of the circuit fails.
Easy Maintenance: Control panel diagnostics identify device faults or tampering immediately.
Scalable Solution: Suitable for small offices to large industrial complexes.
Seamless Integration: Supports automation workflows such as emergency lighting, exit door release, or fire suppression.
Future-Ready Design: Compliant with international fire safety standards and adaptable to smart building ecosystems.
Communication Protocol: Addressable, loop-based (SLC – Signaling Line Circuit).
Activation Method: Break-glass or pull-down handle, resettable or replaceable.
Indication: Local LED (alarm/fault) with panel confirmation.
Power Supply: Loop-powered, no external supply required.
Housing Material: Fire-resistant, impact-resistant polycarbonate or metal options.
Mounting: Flush or surface mount for easy installation.
Standards Compliance: Meets IS, EN 54, UL, NFPA codes.
Maintenance: Self-monitoring with real-time reporting to control panel.