pcm multiplexer
specialized in communication transmission，20yrs of experience with brand
guangzhouyinxun---amanufacturerbeingdedicatedtoofferingaccessing&transmittingsolutionandproductforprivatenetworkuser.mainbusiness:pcmdevice,optictransmitter,telephonetransceiver,mstp,sdh,opticfiberintegratedaccessdevice
www.yxpcm.com
