In
electronics,
a way is
a number
of
switch
positions.
A pole
is the
number
of
switches
moved
together.
Switch
Ways and
Poles Diagram
Sometimes
this is
written
in a
kind of
shorthand.
Here's
an
example
of the
four
types
you're
most
likely
to meet.
| SPST |
Single Pole, Single Throw |
| SPDT |
Single Pole, Single Throw |
| DPST |
Double Pole, Single Throw |
| DPDT |
Double Pole, Double Throw |
These
are the
only
widely
used
shorthand
abbreviations,
as these
are the
most
widely
used
switches.
