On 11/02/2015 01:04, Mike Tomlinson wrote:
En el artículo , Dave Plowman (News)
escribió:

Wonder why it's such an odd value?

It's faulty, there isn't enough load on it to regulate properly, or it's
an unregulated one.

The power probably goes direct to the ICs inside the KVM (in other
words, there's no supplementary power supply on the KVM board.)

It should be 5v +/- 5%, so 4.75 min to 5.25v max.

I wouldn't be comfortable using it on equipment specified for 5.0v.


Not all logic is 5V +/- 5%.
CMOS worked over a wide range and could even be biased to work as amps,
etc.
A usb device should be protected against odd voltages.
TTL was +/- 10% AIRI.