Thanks for the reply. I do know how a DPST switch works, I am just wondering if they have gotten mixed up, or if it is me.
To me, a "change over" means that you can change over from one portion of the circuit to another with a single switch (a SPDT, which would have 3 terminals, or a switch with 4 terminals which in one position, two of the terminals are closed, and the other two are open, and in the other position, the closed/open states are switched, or changed over)
DPST kind of implies, as you stated, that either both sections of the circuit are active, or both are not, with no possibility of "changing over" from one to the other.