GAOTek ethernet optical light source OLS optical power meter is a multi-functional portable comprehensive test platform integrating E1, V.35, 10 M or 100 M or 1000 M or 10 G Ethernet, optical power meter test and other physical interfaces, it provides rich and powerful data network testing functions, easy and intuitive operation, full English display interface, direct display of test and statistical results, easy to carry, for engineering and maintenance personal to carryout onsite instillation, commissioning and maintenance to save a lot of time, multi-port, multi-functional integrated design, to improve engineering and maintenance efficiency, reduce costs to provide strong support.