Optical transmission network technology is a professionalHuawei communications equipment providers , but also a professional communications engineering service providers, can undertake telephone program-controlled core network switching, optical transmission communications, data network communications, communications power supply and other engineering projects design and construction,whichHuawei SDH transmission equipment Huawei Metro series equipment: Metro100, Metro500, Metro1000, Metro2050, Metro3000, Metro5000, Huawei OSN1500B, OSN2500, OSN3500, OSN7500
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