The Perfect Combination of Power and Data: The Magic of POE
Power over Ethernet, widely known as PoE, is a technology that enables power and data to travel on an Ethernet cable, which simplifies the setup by removing the need for separate power cords. It is able to provide in junction both power and data connection to IP Cameras, Wireless access points, and VoIP Phones over a single cable! If you are new to networking, PoE is a revolutionary idea that will speed up your installations, tidy your cabling, and often help with your budget.
What is PoE?
Power over Ethernet (PoE) is a technology that enables Ethernet cables to transmit electrical power along with data. Generally, any network-connected device requires a data connection and dedicated power, often the need for two lines. Whereas PoE allows both to be delivered via the Ethernet cable, eliminating the need for a separate power adapter. Especially for devices that are away from power outlets, such as security cameras outside of a building, or Access Points placed high on the wall.
Why Use PoE?
For network setups, PoE comes with a few benefits that include:
- Simplified set up: Setups are common with energy and information in one cable, eliminating the need for add-on electrical and wiring work.
- Reduced expenses: Less power outlets used means less cost to install and cable mess.
- Flexibility: Devices can be deployed in areas where power outlets are unavailable, allowing for more freedom during network design.
- Controllable Power: PoE provides centralized control over power to all connected devices instead of working out of the box on per device.
Types of PoE Standards
PoE has various standards, as shown below, with the maximum power and speed capabilities for each:
- PoE (IEEE 802.3af) — The original PoE standard that allows up to 15.4 watts of power over Cat5 cabling. For example, this is adequate for low-power devices such as VoIP phones and simple IP cameras.
- PoE+ (IEEE 802.3at): Up to 30 watts, ideal for higher-powered devices like advanced IP cameras with pan-tilt-zoom (PTZ) functions as well as high-powered access points.
- PoE++ (IEEE 802.3bt): Also referred to as PoE Type 3 and 4, PoE++ provides up to 60 watts (Type 3) or 100 watts (Type 4) of usage, allowing it to power high-power devices such as LED lighting, touch-screen kiosks, and smaller network switches.
PoE Devices and Cisco’s PoE Solutions:
Cisco has some great and dependable flexible solutions for anyone looking to connect PoE in their setup. Some of the most popular products from Cisco that support PoE include the following:
- Cisco Catalyst 2960-L Series (e.g. WS-C2960L-24PS-LL): Up to 30 watts PoE (PoE+ enabled) supports per port, with a 24-port configuration Perfect for small businesses that need to power multiple devices, such as IP cameras and access points. And it has a relatively small footprint and uses very little energy, which is good for small spaces.
- Cisco Catalyst 9200 Series (C9200L-48P-4G-E for example): A member of Cisco's very modern next-gen of switch family with PoE+ support across 48 ports that's going to deliver more than enough power for high-demand services in bigger offices. With additional security features and high-speed connectivity, it's the perfect solution for larger enterprise networks.
- Cisco Meraki MR36 (Power-over-Ethernet access point): This power-over-Ethernet access point is ideal for any business wishing to provide reliable, fast, wireless connectivity in a secure way. Powered by a single Ethernet cable, the MR36 provides simple cloud management via the Meraki platform, plus automatic monitoring and control.
Thus these Cisco PoE solutions provide you with simple, efficient, and secure power over ethernet to connect devices powered by ethernet, whether for small office or enterprise deployment.
Interesting facts: Beyond Cisco PoE Products
More PoE solutions from other brands:
- Ubiquiti UniFi Switch 8: small 8-Port PoE switch (US-8-60W) that can power up to four devices simultaneously, perfect for small office setups. It is a pretty inexpensive option and fits right into Ubiquiti's UniFi ecosystem.
- Netgear GS308P — 8-port switch with 4 PoE ports (total 55 watts) This makes for a great entry+ level POE switch for powering a few IP cameras or access points in a small network as well.
From entry-level PoE solutions for home and small office networks to more advanced setups for enterprise settings, there is a PoE product for every need.
Choosing the Right PoE Solution
The appropriate PoE option here relies on your device requirements and the scale of your community:
- For Small Businesses: A basic switch such as a Cisco Catalyst 2960-L Series or Ubiquiti UniFi Switch 8 with PoE support will suffice for many low to medium power devices.
- For Expanding networks: Propose PoE+ switch such as the Cisco Catalyst 9200 Series, delivering power to bigger setups needing extra bandwidth and security.
- High-Power Devices: For higher-power setups, PoE++ switches or injectors that supply up to 100 watts, like the Cisco Catalyst 9300 Series, are good options.
Conclusion: The Future of PoE
As networks grow and more devices depend on being connected, expect PoE technology to evolve to provide higher power and increased power efficiency. Higher wattage could be supported by future PoE standards, which expands the possibility of new applications in smart buildings and the Internet of Things (IoT) space.
PoE is a deceptively simple but potent technology that is transforming the way devices are powered and connected. Building a network has never been simpler, especially with reliable brands like Cisco in play. Are you ready to simplify the way you set up your network? Browse through our PoE solutions and choose the best solution to energise your connection!
