13 Jan
2011
13 Jan
'11
12:57 p.m.
Mine has an induction motor. There are contacts in
the "hardware
UART", of course, but is there enough current flowing through that
You mean the 'mechanical UAT' :-). There are no contacts in the receiver
section.
circuit to result in anything more than the most
insignificant of
arcing? If memory serves that's right in the 20mA loop.
It is. The transmitter loop consists of the distributor disk, nad hte
keyboard or reader contacts. No electronics.
Of course the 20mA loop could be driven by a fialry high voltage, and
could hkave an indcutive load (e.g. a telegraph relay), which could cause
some sparking But that seems unlikely in a computer applciation.
-tony