10G ER-S vs SFP-10G-ER Which Transceiver Truly Wins Long-Reach Links?
10G ER-S vs SFP-10G-ER Which Transceiver Truly Wins Long-Reach Links? 10/25GBASE-LR SFP28 Module and SFP-10G-ER Networks run farther each year, yet part numbers multiply. Two “40 km” optics—ER-S and vendor-tagged ER—look identical until firmware balks, budgets break, or links flap. I once ordered 200 ER-S modules only to find my routers accepted SFP-10G-ER only. One […]