A network administrator notices that an IP camera, which is PoE-capable, is not powering up despite being connected to a PoE switch. The switch supports 802.3af and the camera is located 115 meters from the switch using a Cat5e cable. What could be the most probable cause?
The cable used is too long, leading to a voltage drop significant enough to affect power delivery.
The camera and switch are incompatible with each other's PoE standards.
The switch is not supplying enough power due to a high number of connected devices.
The camera requires PoE+, which the switch does not support.
Given the scenario, among the listed reasons, the most probable cause for the IP camera not powering up is exceeding the maximum power delivery range for PoE over Cat5e, which is typically recommended up to 100 meters. As the power reaches the limits of its range, voltage drops can occur, leading to insufficient power delivery to the device. Upgrading to a Cat6 cable could help due to its inherently lower resistance per meter, potentially mitigating voltage drop over the same distance. The other options, though possible in different contexts, are less likely in this specific scenario given the details provided (e.g., no mention of incorrect standards or device incompatibility).
Ask Bash
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
What is PoE and how does it work?
Open an interactive chat with Bash
What is the significance of the 100-meter limit for Ethernet cabling?
Open an interactive chat with Bash
What are the differences between PoE, PoE+, and PoE++?