Sure Pass Exam ANVE PDF

To calculate the storage used per hour by a camera’s recording stream with a bitrate of 8 Mbit/s, you can use the following formula:

Storage (GB/hour)=bitrate (Mbit/s)×seconds per hour8×1024\text{Storage (GB/hour)} = \frac{\text{bitrate (Mbit/s)} \times \text{seconds per hour}}{8 \times 1024}Storage (GB/hour)=8×1024bitrate (Mbit/s)×seconds per hour​

Since there are 3600 seconds in an hour:

Storage (GB/hour)=8×36008×1024=288008192=3.6 GB\text{Storage (GB/hour)} = \frac{8 \times 3600}{8 \times 1024} = \frac{28800}{8192} = 3.6 \text{ GB}Storage (GB/hour)=8×10248×3600​=819228800​=3.6 GB

Thus, the camera uses 3.6 GB of storage per hour. Axis documentation on storage requirements for video streams provides similar calculations to estimate storage needs based on bitrate.

“When using fiber connections for network cameras that lack onboard SFP slots, a midspan with an SFP slot is recommended. This device can accept the fiber connection, provide PoE power to the camera, and transmit data over standard Ethernet.”

— Axis Communications, PoE Midspans and Network Accessories

“A PoE midspan with an SFP slot allows you to convert fiber to copper (Ethernet), power the camera via PoE, and handle data transmission all in one device.”

— Axis Communications Academy, Network Video Fundamentals, 2022

To wire an external 12V relay to the output port of an Axis camera, the GND and I/O1 pins should be used. The GND (ground) provides the necessary electrical return path, and the I/O1 pin is used for the output signal to control the relay. According to Axis technical documentation, these connections allow for proper integration and control of external devices such as relays, ensuring they function correctly with the camera's output capabilities.

Fixed box cameras typically use a CS-mount lens, which allows for easy installation and flexibility in changing lenses to meet different surveillance needs. The CS-mount standard is widely used in the security industry and provides compatibility with a variety of lens types. Axis Communications' fixed box cameras often feature CS-mount lenses, as detailed in their product specifications and installation guides.