SD-MA-025
48
8. Using Cautions
（
1
）
During installation, must ensure the power supply ground is good, and ensure that the
power supply for the device is 50/60Hz, AC110-240V;
（
2
）
Do not place the matrix in the place where is too cold or overheated. In the wet
environment or if not use for a long time, better to turn it off;
（
3
）
Maintain a good ventilation of the working environment, to facilitate the timely
discharge of heat;
（
4
）
Make sure the signal cable, communication cable connects well to the matrix, then
power on; AC power
can’t exceed 2
40V;
（
5
）
Change the input source without turning off matrix, may cause video to not display
correctly. If this occurs, please turn off the matrix, then power back on, or re-plug the
input card;
（
6
）
HDMI/DVI cable should not exceed 10 meters, certified cable is recommended;
（
7
）
If control via RS232 failed, please check whether the selected com port is right, and the
RS
232 cable is straight type cable (not cross cable), the baud rate must set to 9600.
