Questions · Networks
Single-mode or multi-mode fibre?
Multi-mode for short distances within one site, of the order of a few hundred metres at high speeds. Single-mode when there are kilometres involved, or when you want to leave the run ready for more speed than you need today without touching it again.
The price difference today is more in the transceivers than in the cable, and the cost of digging a trench is the same for one as for the other. So when there is civil work involved, you lay more than you need and leave spare fibres: the second run costs the same as the first.
And what fails most is not the fibre, it is the connectors. A dirty or badly polished end gives you a link that works and drops packets, which is the most awkward fault of the lot. You clean it, you measure it with an instrument and you write down the reference value so you can compare in three years' time.
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Five hundred and forty-four, grouped by topic. Each with its own page.
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A written answer is enough to decide whether it interests you. To know whether it works at your site you have to see it on a real scene, with the image as it is and, on top of it, what the system understands from it. That is on the IRIS Neural website, which is the group's product.