#Usb isolator full#

USB is normally used for short distance (up to 5m) data connections where significant differences in ground potential do not exist and galvanic isolation is unnecessary. Using magnetic or capacitive coupling instead of optical coupling should be cheaper again. Combining the functions of a fiber extender into a single package should be cheaper, not more expensive. So, obviously it is possible and routinely done with today's technology.Ī fiber-optic USB extender basically works a bit like an opto-coupler except that the light source and the light receiver are on separate chips. Gigabit Ethernet and 10G-Ethernet have galvanic isolation. There are definitely laws of marketing involved.

What makes a hi-speed USB isolator so much more expensive than a full-speed USB isolator? Is there a physical limitation to the approach used for the full-speed devices which makes it inapplicable and/or cost prohibitive for hi-speed devices? At such a price, there is no market, thus there are no hi-speed USB isolators available. Hi-speed USB isolators do not exist, so I assume they can not be made for €100, but would cost significantly more (€1000? €10000). Non-fiber USB isolators cost about €100 but are limited to full-speed USB. Is there a practical or physical limitation to the bandwidth of a galvanic isolator for USB? Are actual laws of physics involved, or is this merely an engineering challenge or cost issue? Edit I can't find any alternative electric isolators which do provide Hi-speed connection USB fiber extenders, however, are offered with hi-speed throughput and should provide both galvanic isolation and high bandwidth, though perhaps at higher cost?

#Usb isolator full#

I have a USB isolator which provides galvanic isolation of a USB device from my PC, but only works for low speed and full speed USB.