It’s miles lots cheaper and plenty higher for the stop consumer.
If designing a chunk of gadget which you would really like with a purpose to promote to as many humans as feasible. With copper Ethernet it did as a substitute fast became out to a selected electrical scheme for every pace, 10Base-T, 100BASE-TX, 1000BASE-T. For Optical fiber it’s miles a large number. Single and multi mode fiber, then all of the one of a kind speeds, special range requirements specific connectors. When I final counted it was extra then a hundred thirty “standards”. So by way of instead of decide of one of the “standards” the usage of SFP era then you definitely product deal with all 130 “requirements” while not having to be produced in one hundred thirty distinctive variations (just the EMC testing might be a nightmare).
And this is the odd part. It is truely cheaper for the give up consumer to apply SFP over a opto fiber design “on board”. The closing product that I become concerned with, I changed into able to make SFP a part of the design as opposed to a RJ45 design for the Gbit/s Ethernet interface. It is simply sincerely interesting how tough it changed into to apply an SFP in a “embedded” product. Mainly due to lack of proper statistics. You can buy a IC for 10 cent that has better documentation then a one hundred$ SFP module. With that I mean that it was now not a network equipment (router/switches and so on) but a cease factor product.
Back to cheaper, an empty SFP bay charges much less then RJ45+magnetics+passive components. Then the patron can choice to move copper or opto and could should bear the cost of that desire (out of doors of the selling price for the product).
But a few standardization organ should placed the foot down and BAN manufactory precise SFP modules, or a open public general (consumer manual) need to be made. (I don´t remember the “Small Form-aspect Pluggable (SFP) Transceiver MultiSource Agreement (MSA)” to be sufficient for being feasible to design gadget round, I/we basically were given fortunate…
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