The ANWETECH AT-DM102 Addressable I/O Module is used with loop-type fire alarm control panels for external equipment monitoring and control. It is powered directly by the non-polar 2-wire loop and does not require an external 24V power supply.
The module supports normally open input, normally closed input, and equipment fire alarm/fault input mode. It also provides a volt-free dry contact relay output for controlling external devices through the fire alarm system.
| Item | Specification |
|---|---|
| Model | AT-DM102 |
| Product Type | Addressable I/O Module |
| Standard | EN 54-18 |
| Operating Voltage | Loop DC20–28V |
| Loop Wiring | Non-polar 2-wire loop |
| Quiescent Current | ≤1.2mA |
| Activated Current | ≤4mA |
| Relay Contact Rating | 2A, 30VDC Max, resistive load |
| Output Mode | Volt-free relay dry contact |
| Input Monitoring Mode | Mode 1: Normally Open; Mode 2: Normally Closed; Mode 3: Fire Alarm and Fault Input |
| EOL Resistor | 47kΩ |
| Trigger Resistor | 15kΩ |
| Address Method | Soft address with coder |
| Address Range | 1–324 |
| Operating Temperature | -10°C to +55°C |
| Relative Humidity | ≤95%, non-condensing |
| Dimensions | 86 × 86 × 41 mm with base |
| Weight | Approx. 132 g with base |
Not applicable. This product is an addressable input/output module, not a detector.
AT-DM102 connects to the addressable loop through L1 / L2 with non-polar wiring.
Input monitoring is connected through TO+ / TO-.
Relay output is provided through NO1 / NC1 / COM1.
The relay output is a dry contact only and does not provide voltage output. The output interface should not be connected to AC signal.
The module should be installed on the DZ-9058 base. Before installation, set the correct address and working mode using the coder. The 47kΩ EOL resistor should be placed at the end of the input line and close to the monitored device. For Mode 3, the 15kΩ trigger resistor and 47kΩ EOL resistor should be installed according to the wiring diagram.
