TRS-B1a
The TRS-B1a sound signal device is designed to signal events with a sound or light. It is controlled by means of RS-485 link, which allows for activating of the sound signal (a buzzer with variable tone) and/or light signal (a flickering diode). The module is dedicated to the TRS Temperature Recording System and it is equipped with Modbus RTU communication bus. It can be used with other systems where the communication is consistent with the Modbus RTU standard.
Parameters
| Power supply | typ. 10V DC (9V DC ÷ 12V DC) |
|---|---|
| Power consumption | 9.5 mA in standby; 70 mA while signalling; up to 60 mA when signalling switched off |
| Communication interface | RS-485 / Modbus RTU |
| Storage temperature | -40°C ÷ +85°C |
| Operating temperature | -40°C ÷ +85°C |
| Case dimensions | 64 x 58 x 90 mm |
| Protection class | IP 65 (case) |
| Mounting | to wall, 2 M3 bolts |
| Number of modules in 1 network | max. 127 |
| Connection cable | 4 conductors (2 supply conductors + 2 data transmission conductors) |
| Transmission parameters | 9600 bit/sek. |
