hikvision ds-2cd2132f-is

Hi All I posted this in another forum a couple of days ago but no replies so far...doing a search on forums and this looks a gud un to join so here goes with my 1st post :): I have 3 Hikvision DS-2CD2132F-IS dome cams connected to a Hik DS-7604NI-SE/P NVR When I first installed the system...

I've been unsuccessful trying to add a USA Hikvision DS-2CD2132F-IS to a Swann 16-ch/8-PoE NVR, model CONV16-B3MP8C. The firmware of the camera is V5.3.0 build 151016 which is higher than the firmware on US website, V5.3.0 build 150513. This makes me wonder if I really have a USA version, so...