华为optixosn1800,华为optixosn3500

huawei optix osn1800 telecommunication accessories multiplexer
huawei optix osn 1800-v cwdm/dwdm fiber optic equipment
华为osn1800光端机optixosn1800v光传输设备
华为optix osn 1800 ii传输机框
optix osn1800 v