NOHMI BOSAI
NOHMI BOSAI FRRU004-AIM Analog Input Module
Manufacturer: NOHMI BOSAI
Model: FRRU004-AIM
Features of FRRU004-AIM
- One simple LED for status indication
- NFPA Class A (Styles 6 & 7) and Class B (Style 4) for SLC
- NFPA Class A (Style D) and Class B (Style B) for IDC
- Electronic address setting
- Downsized unit
- Easy installation
Description
- The FRRU004-AIM module monitors industry-standard 4–20 mA sensors.
- This module converts sensor output into a communication protocol, enabling fire alarm control panels (FACP) to display and monitor the data.
- It works with a wide range of sensors, including gas, temperature, and air speed sensors, all using the 4–20 mA protocol.
- The FRRU004-AIM module features a red LED that indicates system status. When the sensor is operating normally, the LED flashes.
- A solid LED indicates an input condition, while the LED turns off to signal a trouble condition.
Specifications of FRRU004-AIM
| No. | Item | Specification |
|---|---|---|
| 1 | Rated voltage range of SLC input power (S+,S-) | 22.0 to 24.0 V |
| 2 | Maximum SLC 24 VDC standby current (S+,S-) | 250 µA |
| 3 | Maximum SLC 24 VDC alarm current (S+,S-) | 250 µA |
| 4 | Operating voltage of external power supply line (24+,24-) | 24 VDC |
| 5 | Rating for connected V+,V- | 0.5 A |
| 6 | Sensor signal loop current | 4-20mA |
| 7 | Consumption current of the board at standby | 1mA |
| 8 | Consumption current of the board at alarm | 3mA |
| 9 | Maximum number of sensor per module | 1 unit |
| 10 | Operating temperature range | 0 to 49°C (32 to 120°F) |
| 11 | Operating humidity range | 0 to 93% (non-condensing) |
| 12 | Address per module | 1 address |
| 13 | Dimensions | 4.17”(106mm) (H) × 4.17”(106mm) (W) × 1.14”(29mm) (D) |
Installation
Figure 1: Installation into the compatible electrical box
Wiring Diagram
Figure 2: Wiring diagram of FRRU004-AIM
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