If you don't have any TMCC/Command equipment, the Command Base is not used.
The PM-1 PowerMaster w/ Cab-1 is used with conventional trains like a remote control handle of a ZW. There is no transformer in it, it is powered by an external source, for example the C or D handle of your ZW set to full throttle.
The manual to get you started with basic PM-1 conventional operation can be viewed HERE.
Here is the "video manual" for the 135/180 model PM-1 to get you started: