On 8 Nov 2006 at 22:14, Tony Duell wrote:
This is one of those terms that is different in the UK
and the States,
then.
In fact, neither convention makes much sense. Most lighting switches
are 2-way; they're either in the "up" position or the "down"
position. SPST, SPDT, etc. make sense up to a point, but the US "4
way" switch, while technically a DPDT, is a 4 terminal design, not 6.
Even in the electronics business, the term DPDT can refer to a
switch with a center-off position or one without (i.e. a single
"throw").
Is there a better terminology available?
Cheers,
Chuck