How to make my new cable box power on?

[BreakingPoint]

I got one of those little boxes, which don't have any kind of power button.  I got it all hooked up, but have no idea how to turn it on.  The model number says CTI#25-2313.  I tried using the remote, but nothing.  This is a new box.

[Geno68]

Should plug in . I dont see a power button. Shows a green light when on .