If your asking, are these two similar things the same, I'd say no they are not the same and have some fairly obvious differences
If you want to break it down further, I would not even call the second gun a "carbine" I would put it in the Sub(Machine) gun box much the same as an MP5 or Uzi.
PCC is not a perfect catch all term for pistol caliber non handgun weapons.
The word carbine has a longer history of use and generally describes something shorter then a typical rifle and longer then a sub (machine)gun.