The SF-T943A-5P4N1 camera works in the 4 technologies TVI, AHD, CVI, CVBS.
In TVI works in 2Mpx, 4Mpx and 5Mpx.
AHD 5Mpx and 4Mpx.
CVI 4Mpx.
If the camera is in TVI or AHD in 5Mpx, you can not change the technology until you lower the resolution to 4Mpx.
Note:
Be aware that you need to have a recorder that supports TVI and 5Mpx or you can use one of the Safire Testers: Link to the Safire tester - Safire CCTV Tester a must for every installer