The AT-ZM101 Zone Module allows a conventional detector zone to be integrated into an addressable fire alarm system.
It provides supervised zone monitoring, regulated 24V DC power output, and reliable alarm and fault reporting to the control panel.
The AT-ZM101 Addressable Zone Module is designed to interface one conventional detector zone with an addressable fire alarm control panel.
It continuously monitors the connected zone for alarm, open circuit, and short circuit faults, and reports real-time status to the addressable loop.
The module also supplies regulated 24V DC power to compatible conventional detectors, making it ideal for system upgrades or hybrid fire alarm designs where conventional devices must be retained.
Interfaces one conventional detector zone to an addressable loop
End-of-line (EOL) supervised zone wiring for open and short fault detection
Provides regulated 24V DC output for conventional detectors
LED indicators for communication, normal operation, and alarm status
Compact design suitable for control panel back-box or enclosure mounting
Reliable performance for commercial and industrial fire alarm systems
| Parameter | Specification |
|---|---|
| Model | AT-ZM101 |
| Loop Type | Two-wire addressable loop (power & communication) |
| Loop Voltage | DC 18–28 V |
| Quiescent Current (Loop) | ≤ 2 mA |
| Alarm Current (Loop) | ≤ 4 mA |
| External Power Supply | DC 24 V |
| Zone Output Voltage | DC 24 V (supervised) |
| Maximum Detectors | Up to 30 conventional detectors (application dependent) |
| End-of-Line Resistor | 4.7 kΩ (required) |
| Operating Temperature | −10°C to +55°C |
| Relative Humidity | ≤ 95% RH (non-condensing) |
| Dimensions | 108 × 74 × 24 mm |
| Weight | Approx. 80 g |
| Terminal | Function | Notes |
|---|---|---|
| L1 / L2 | Addressable loop connection | Follow panel loop requirements |
| +24V / GND | External DC power input | Polarity required |
| TO+ / TO− | Conventional zone output | Connect detectors & EOL resistor |
Addressable fire alarm systems with existing conventional detectors
System upgrades and retrofit projects
Commercial buildings, data centers, industrial facilities
Hybrid fire alarm system architectures
