You would need a PoE splitter instead of a PoE-enabled device in situations where your existing devices do not support Power over Ethernet (PoE) but still require both power and data connections. A PoE splitter allows you to integrate non-PoE devices into a PoE-powered network, providing several advantages in terms of cost, flexibility, and deployment efficiency.
Key Reasons to Use a PoE Splitter Instead of a PoE-Enabled Device
1. Using Non-PoE Devices in a PoE Network
--- If you already have non-PoE devices (e.g., IP cameras, access points, Raspberry Pi, or media converters) and you do not want to replace them with PoE-compatible versions, a PoE splitter enables you to power them via Ethernet.
--- Instead of buying new PoE-enabled devices, you can continue using your existing equipment while benefiting from PoE infrastructure.
2. Cost-Effectiveness
--- PoE-enabled devices (such as PoE IP cameras, PoE VoIP phones, or PoE access points) are often more expensive than their non-PoE counterparts.
--- A PoE splitter is a lower-cost alternative to upgrading all your devices, making it a budget-friendly solution for integrating non-PoE devices into a PoE-powered setup.
3. Easier Installation in Locations Without Power Outlets
--- Many network devices (e.g., surveillance cameras, access points, digital signage) are often installed in hard-to-reach places like ceilings, outdoor poles, or remote areas.
--- Running a separate power cable to these locations can be difficult and expensive.
--- A PoE splitter allows you to deliver both power and data over a single Ethernet cable, eliminating the need for nearby electrical outlets.
4. Reducing Cable Clutter and Power Adapters
Without a PoE splitter, non-PoE devices need both:
1. An Ethernet cable for data.
2. A separate power adapter plugged into a power outlet.
A PoE splitter removes the need for a separate power adapter, reducing cable clutter and simplifying installation, which is especially useful in structured cabling environments.
5. Compatibility with Low-Voltage Devices
--- Some small devices, such as Raspberry Pi, sensors, or embedded controllers, require specific DC voltage levels (e.g., 5V, 9V, or 12V).
--- A PoE splitter can convert the standard PoE voltage (48V) into a lower DC voltage, making it suitable for devices that cannot handle direct PoE input.
6. No Need to Upgrade Your Network Infrastructure
--- If you have an existing non-PoE switch and need to power PoE devices, you would normally need to replace the switch with a PoE switch.
--- Alternatively, you can use a PoE injector + PoE splitter combination to provide power to specific non-PoE devices without upgrading your entire network infrastructure.
7. Greater Deployment Flexibility
--- Some specialized devices do not have PoE-enabled versions available (e.g., certain IoT devices, custom-built embedded systems, or proprietary network equipment).
--- A PoE splitter allows any Ethernet-powered device to be used in a PoE network, making your deployment more versatile.
When to Choose a PoE Splitter vs. a PoE-Enabled Device
Scenario | Use a PoE Splitter | Use a PoE-Enabled Device |
You already own non-PoE devices and want to integrate them into a PoE network. | ✅ | ❌ |
You want to reduce costs without replacing existing devices. | ✅ | ❌ |
Your device requires a specific DC voltage (e.g., 5V, 9V, 12V). | ✅ | ❌ |
Your device is installed in a location without a power outlet. | ✅ | ✅ |
You are building a new network and want the simplest PoE solution. | ❌ | ✅ |
Your devices are already PoE-compatible. | ❌ | ✅ |
Conclusion
A PoE splitter is the best choice when you need to power non-PoE devices in a PoE network, reduce installation costs, eliminate additional power adapters, and simplify deployment in locations without easy access to power outlets. It is a cost-effective alternative to buying PoE-enabled devices and provides greater flexibility for using a mix of PoE and non-PoE equipment.