什么是poe？

Why PoE?

Designing a network that’s ready to support the explosion of IoT devices and the latest wireless technologies is a challenge. Future proofing a network requires special consideration that addresses network capacity planning for both speed-based performance and to power network devices. Power over Ethernet (PoE) is an access layer technology which combines both data signals and electrical power into a single Ethernet cable connection to enable remote powered device operation.

By eliminating the need for separate data and power cables, PoE provides the advantages of simplicity and cost savings, while adding new intelligent device control capabilities. Driven by the need to connect emerging power hungry IoT devices, PoE technology has progressed with the introduction of the IEEE 802.3bt standard. This new standard allows switches and powered devices to operate above 30 Watts of PoE per port and support up to 60 and even 90 Watts of PoE per port.

PoE的优势

PoE runs over twisted pair cabling, which is prevalent worldwide and can also be quickly installed, often without a skilled electrician. Twisted pair cabling can be installed in difficult to reach locations where pulling electrical power is not feasible.

该技术还包括在空闲时段期间降低功耗的功能。利用数据信号能力，可以监视状态和交换机和供电设备之间共享的信息，以便管理传送到远程设备的电量量。

Support for high-power PoE standards

阿鲁巴一直向市场提供符合标准，而不是专有的解决方案。这一关注标准使客户能够自信地拥有Aruba的高功率PoE解决方案的设计和部署。

为满足大型企业对SMB的需求，Aruba CX交换机支持一系列PoE电力和PoE电力预算。阿鲁巴switches with IEEE 802.3bt(Class 6) provide up to 60 Watts to all standards-compatible powered devices, which means your infrastructure investment will provide value into the future as new devices and applications come to market. As further proof of our commitment to industry standards, Aruba switches are among the first products to be listed on the Ethernet Alliance (EA) Certified PoE Product Registry which helps ensure reliable, network interoperability.