“PoE+ (IEEE 802.3at) provides up to 30 W of power per port, which is required for PoE+ devices such as PTZ cameras and certain outdoor models.”
— Axis PoE Guide
“A standard PoE+ device requires 30 W at the source.”
— Axis Communications Academy, Network Video Fundamentals, 2022
[References:, , Axis Power over Ethernet Guide, , Axis Communications Academy, Network Video Fundamentals, 2022 (p. 77), ]
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Question 69
What is a benefit of utilizing external IR illumination with 940 nm?
Utilizing external IR illumination with 940 nm provides the benefit of covert surveillance. IR light at 940 nm is almost invisible to the human eye, making it ideal for discreet monitoring without drawing attention to the presence of the camera. This allows for effective surveillance while remaining undetected by intruders. Axis Communications' product documentation on IR illumination confirms this advantage of 940 nm IR light.
AXIS Device Manager is free of charge. This tool provides comprehensive management capabilities for Axis devices without any additional licensing fees. It allows users to efficiently manage, configure, and maintain their Axis network cameras and other devices, ensuring optimal performance and security. Axis offers this tool as part of their commitment to providing user-friendly and cost-effective solutions, as detailed in their product information and support resources.
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Question 71
What advantage does a Vi” 1080p camera have over a Vi” 4K camera?
A 1080p camera with a 1/2" sensor typically has larger pixels compared to a 4K camera with a 1/2" sensor. Larger pixels can capture more light, which improves performance in low-light conditions and enhances image quality by reducing noise. This is a critical advantage when clear image capture in various lighting conditions is necessary. Axis documentation on camera sensors and image quality highlights that larger pixels provide better light sensitivity and dynamic range.
