Guangzhou Yinxun started as an R&D house in 1986, two senior experts who mastered licensed technologies in telecommunications began to commercialize their innovations into products. Since the establishment of our factory in the year 2002, we have been dedicated to the development and production of telecom-carrier-class PCM E1 access and transmission products such as PCM multiplexers, phone optic mux, E1 failover (protection) switch, DXC, PDH multiplexer equipment and optic integrated access device as well as some accessory patch panels (such as ODF, VDF, DDF), cabinets and industrial switching power supply, etc.Most of our products feature modular design with single PCB layout, flexible configuration and easy operations and maintenance.Customers across 25 countries rely on us for reliable OEM services, innovative &cost-effective products and responsible customer care services.Some of our clients are big players in the world, such as Alcatel Lucent, China Telecom, China mobile, etc. We have our own research center made up of several senior engineers, three of them have more than 10 years&＃039; R&D experience. Send us your ODM requirements, and within 30 days, our R&D team will give you a solution. Located near Canton fair at Tianhe district in Guangzhou, our 3, 000-square-meter factory complies with the ISO 9001:2000 standard. Equipped with five semi-automated production lines, we can turn out 1, 000 units for each model monthly. All of our products are 100% inspected and under 48 hours burn-in test before dispatch We source ICs, capacitors and resistors from Japan, USA and components from well-respected OEM manufacturers. Some of our products carry network access license for telecom devices issued by China&＃039;s Ministry of Industry and Information Technology, and some hold quality certificates from Shanghai branch of Bell Laboratories.