CWDM vs DWDM: which one does your network actually need?
You have two sites, one pair of fibres between them, and a lot more traffic than that fibre currently carries. Wavelength division multiplexing is how you get more out of the strands you already have — and the first decision is CWDM or DWDM. They solve the same problem in very different ways. CWDM is […]
SFP-10G-SR: the full specification and every part number
SFP-10G-SR is the most deployed 10G optic in the world. It is also the one most often ordered by the wrong name, populated into fibre that cannot carry it, and blamed for faults it did not cause. This is the reference page for it: what the standard actually specifies, how far it genuinely goes on […]
