If you are trying to use the multiple HDMI outputs (4 total) from the AVR-NSV256E2N NVR, there are limitations to the number of cameras that can be displayed simultaneously by each of the four HDMI outputs. Below are the limits for each HDMI port:
- HDMI1: 64 Cameras total
- HDMI2: 32 Cameras total
- HDMI3: 32 Cameras total
- HDMI4: 16 Cameras total