※ Product Specifications

- It is possible to control by outputting the amount of change in more than 8 steps by precisely controlling the amount of change in illuminance.

- Use leased line to supervisory remote monitoring and control of light status and field information from each local controller at a certain place.

- In order to prevent the tunnel lights turning off due to system failure, the system automatically switches to A system and B system and operates normally. It is sends alarm signal to the outside for detect the failure condition early.

- In order to prevent shortening of the life by turns on/off in a short time according to the rapid change of outdoor illumination in the tunnel, an internal delay circuit must be constructed to secure the lighting on/off time. The user can set the delay time from the Control Panel directly.

- It is possible to traffic-actuated control of the internal lighting and adaptational lighting in tunnel entrance according to the outdoor illumination(daylight illumination) of entrance,

- Using LED or liquid crystal, it is easy to display and read various data and all functions can be set and modified by the user in the main control section.

- All functions of the main control unit must be displayed by LED and divided into A System and B System for LED monitoring. The manual button must use push button lamp switch.

- In the master control unit, a function to accumulate the lighting time of each output stage by month must be built-in.

- The master control unit must be built-in function for detecting memory abnormalities, CPU abnormality detection, low battery status and self-diagnosis.

- All operations of the master control unit must be indicated by LED.