LED display hardware uses the environment

LED display hardware, including OLED Display Module display according to type, size, and other conditions determined by use of the site part of a general purpose computer, communication lines,Character LCD Display dedicated data conversion section and a display section. In detail specification shall specify:
a. on the host computer, a variety of optional cards, external devices and communication interface requirements;
b. the communication line requirements and indicate the maximum communication distance;
c. data conversion part of communication with the host computer;
d. supply requirements and structural installation requirements.