Supply LED color screen preferred Shaanxi Hi-Tech Optoelectronic Technology Co., Ltd.

Supply LED color screen preferred Shaanxi Hi-Tech Optoelectronic Technology Co., Ltd. 02,985,453,602 12. Environmental weathering have a walk-in level of 30 cubic meters of warm wet alternating tester, referred to as environmental testing instrument It can display cabinet at high temperature, low temperature, high humidity, low humidity, cycle alternating weathering testing simulation environment, the product will eliminate the suffering in the factory before. 13. lightning, earthquake design 34) Each series grounding module housing; 35) displays the signal transmission with lightning protection design dedicated circuit; 36) on a steel mesh to install flash connector lightning protection device; 37) fitted Imported mine - Germany OBO arrester, power protection system to prevent harm lightning and surge voltage equipment caused; 38) display body by IEC sixty thousand and sixty-eight -2-6: 2007 Vibration (sinusoidal). In the 10Hz-55Hz-10Hz, the scanning rate 1octave / min, amplitude 0.35mmm, continued 3min, under test conditions, in line with standards. 39) requires in the case does not affect the load-bearing capacity, with large margin design, enhanced seismic capacity. The overall structure is designed to: Wind: 12 Earthquake: 8 14. The fire retardant production of display control according to strict fire retardant requirements for the design, the product has passed the national monitoring body, in line with IEC sixty thousand six hundred ninety-five -2-12: 2001 standard glow-wire test, product test results will not be ignited at 750 ℃ ??condition. 15. EMC LED display produced by national testing agencies have compatible EMC electromagnetic testing. 40) power supply circuit using standard industrial power and shielding measures, the front end of a high-performance power supply EMI filter circuit, with good common mode and differential mode interference suppression characteristics, can be used to suppress continuous or intermittent glitches, reduce power supply noise. 41) Good electromagnetic power, circuit shielding; 42) high current signals, the low current signal, the structural safety of the ground and power ground traces separate and apart as four-wire analog and logically; 43) PCB design specifications, including the components of the arrangement, and take strict rules line, filtering, etc., the measurement noise to each PCB line with an oscilloscope, the peak does not exceed + 50mv; 44) in the board, between boards, chassis between Interface circuit has anti-jamming design; 45) system field wiring, signal line and AC power cord (power line) strictly separated; 46) good ground system; 47) In order to improve system reliability, power taken measures derating , allow sufficient margin; external interfaces balanced current drive. Shaanxi Hi-Tech Optoelectronic Technology Co., Ltd., a professional LED brand welcome to buy!