1.1 Scope of Application
IEMS V.400 is an intelligent monitoring and control product. It is generally applicable to intelligent display terminal products, video terminal products, industrial automation terminal products, such as advertising machines, digital signage, intelligent self-service terminals, intelligent retail terminals, O2O intelligent devices, industrial control hosts, robotic devices, etc.

1.2 Product Overview
The environmental monitor communicates with the remote server through the integrated WIFI module to provide real-time environmental monitoring information reporting, remote control, and online program upgrade. The board integrates voltage, temperature and humidity sensors, gravity acceleration sensors, relay switches; external interfaces support fan PWM control, fan speed feedback collection, access control monitoring, flooding, smoke, light sensor, optocoupler, relay interfaces. The temperature can be detected by the onboard or external temperature sensor, matched with the preset temperature value and automatically control the fan. A serial communication interface is reserved to connect and communicate with the terminal.

1.3 Product features
1. a temperature and humidity sensor integrated on the board, external support for 3 single-bus temperature sensor.
2. programming temperature: low temperature preset temperature, fan start preset temperature, fan full speed preset temperature, high temperature protection preset temperature.
3. linear proportional PWM synchronous speed regulation between fan start and full fan speed.
4. support 3 independent PWM output and 24 independent fan speed feedback acquisition.
5. integrated gravity acceleration sensor, can monitor the chassis vibration warning; 6.
6. integrated 2-way relay switch and 8-way external relay control interface.
7. provide 1 onboard voltage acquisition and 8 external voltage acquisition interfaces.
8. support 4 external light sensor, 2 access control, smoke, flooding interface.
9. provide 4-way optocoupler isolated output and 4-way optocoupler isolated input interface; 10.
10. integrated WIFI module, real-time communication with remote server: reporting monitoring data, remote control, remote setting of temperature warning threshold, online program upgrade, etc.
11. integrated serial module, support WIFI and serial communication switch function.