Addressable wireless fire alarm – Series 200A
DAS-WRE-200AWireless fire alarm signal repeater
Signal repeater of the Tan Vien Series 200A addressable wireless fire alarm system.
- 10-level cascade, 50 devices per repeater
- DC 12 V supply + 3.6 V / 2400 mAh rechargeable battery
- Encryption, authentication, protection against man-in-the-middle attacks
- LoRa transmission 312–316 MHz, 1000 m unobstructed
Relay node of the wireless network: extends the distance between the DAS-FACP-200A panel and end devices. Supports 10-level cascading; each repeater manages up to 50 devices. Has a DC 12 V main supply and a rechargeable backup battery.
Key features
- Extended coverage. Connects devices far from the panel — multi-storey buildings, multiple zones, many obstructions.
- 10-level cluster-tree network. Each repeater declares its upper-level (parent) repeater — the panel is the root (repeater No. 0).
- CSMA-CA collision avoidance. A channel-access mechanism that ensures messages are sent upstream reliably.
- Security. Data encryption, access authentication, protection against man-in-the-middle (MITM) attacks.
- Dual power supply. DC 12 V adapter + 3.6 V / 2400 mAh Li-ion rechargeable battery.
Indicator status
| Work | Steady on during normal operation |
|---|---|
| Comm | Flashes when radio data is received |
| Fault | On when there is a main/backup power fault or a communication fault |
| Test | On when in setup (debug) mode |
Installation notes
- Place in an open position, on an unobstructed wall, close to the center of the area it manages.
- Both antennas must be tightened: left – upper level, right – devices.
- Load the data starting from the farthest repeater and work back to repeater No. 0.
For detailed network registration, installation and commissioning procedures, see Series 200A Design, Installation and Operation Manual (PDF).
Suitable installation locations
DAS-WRE-200A technical specifications
| Model | DAS-WRE-200A |
|---|---|
| Main power | DC 12 V adapter (DC 24 V port as spare) |
| Backup power | Rechargeable Li-ion battery DC 3.6 V / 2400 mAh |
| Power consumption | Normal ≤ 1 W · while charging the battery ≤ 4 W |
| Frequency / transmit power | 312 – 316 MHz / ≤ 20 dBm |
| Transmission range | 1000 m (unobstructed – manufacturer's figure) |
| Network | 10-level cascade; 50 devices per repeater |
| Indicators | Work · Comm · Fault · Test |
| Antennas | 2 antennas: left – uplink to the upper level; right – link to devices |
| Dimensions | 160 × 110 × 27 mm |
| Weight | ≈ 278 g |
| Environment | Indoor; −10 °C to +40 °C; RH ≤ 95 % |
| Reference standards | TCVN 7568-25:2023 (ISO 7240-25) |
The 1000 m range is a manufacturer's figure measured in an unobstructed space. For indoor design in reinforced-concrete buildings, use a radius of ≈ 25 m around the panel/repeater (≈ 15 m in factories with heavy interference), and a radio survey is mandatory: pass when RSSI ≥ −100 dBm, SNR > 0.
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