دليل وحدات NS الضوئية 100G (QSFP28): موديلات SR4/LR4/DR وكيفية اختيار الأنسب
If you’re upgrading leaf–spine fabrics, stitching campus buildings, or extending metro/edge links, a reliable Optical Transceiver Module at 100 Gbps is table stakes. This guide breaks down NS-branded QSFP28 modules—SR4, LR4, and DR—with practical advice on reach, fiber types, connectors, power, DOM, interoperability...