This device is installed in our electrical panel which act as a timer to control the on/off operation for our LED billboard outside my office. I searched around the device for the brand and model it did not state anything or probably written in chinese character which I am not familiar. The previous electrical engineer already left without leaving his technician any clue on how to operate this device.
Now I need to reprogram it to switch on the billboard at a different time. it has one serial cable that can be connected to a laptop and the technician told me the previous engineer used to plug it to his laptop and run a program called "MK Power" to program the timer. I guess that software came with the device since the tech described a window based program with specifics fields to set time and delay.