TP-LINK POE4818G Omada 48V 18W Passive PoE Injector - Gigabit Ethernet - Wall Mountable
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Product Features
Technical Overview
This passive PoE injector operates with an input voltage range of 120 V AC to 230 V AC, making it suitable for use in various regional power grids. It outputs a steady 48 V DC at up to 18 W, which is sufficient to power compatible Omada access points without overloading the circuitry.
The device features auto-sensing technology that determines the power requirements of the connected access point, ensuring safe and efficient operation. Both the input and output ports support 10/100/1000 Mbps Ethernet, preserving network speed integrity while delivering power.
Relevant factors for this section include Input Voltage, Maximum Output Voltage, Maximum Output Power, Input Ports. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The POE4818G injector offers several advantages for network administrators seeking a reliable PoE solution. Its passive design ensures compatibility with specific TP-Link Omada access points, providing a straightforward power delivery method that integrates seamlessly into existing network infrastructure.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Simplified Installation, Network Performance.
Simplified Installation
Eliminates the need for electrical outlets near access points, reducing cabling complexity and installation time.
- Wall-mount design
- Included mounting kits
- Plug-and-play operation
Network Performance
Maintains Gigabit Ethernet speeds across both input and output ports, ensuring no degradation in data throughput.
- Full 1000 Mbps support
- Dedicated power lane
- Stable voltage output
Deployment / Use Cases
This injector is ideal for deploying TP-Link Omada access points in environments where standard PoE switches are unavailable or impractical. It is commonly used in small to medium-sized business networks, educational facilities, and hospitality venues where wireless coverage expansion is needed.
Typical use cases include powering ceiling-mounted access points in offices, outdoor access points in covered areas, and access points in retrofit installations where existing network infrastructure lacks PoE capability. The injector's compatibility with specific Omada models ensures reliable performance in these scenarios.
Office Network Expansion
Add wireless coverage to areas without PoE switch ports, using existing Ethernet cabling for both data and power.
Outdoor Access Point Support
Power outdoor-rated Omada access points from indoor network closets, maintaining weather resistance at the access point itself.
Physical Profile
The injector features a compact wall-mountable enclosure measuring 1.40" in height, 3.40" in width, and 1.70" in depth. This small footprint allows for discreet installation in network closets, on wall surfaces, or alongside other networking equipment. The design includes mounting points for secure attachment, and the lightweight construction ensures easy handling during installation.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 1.40" (35.56 mm), 3.40" (86.36 mm), 1.70" (43.18 mm). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 3.40" (86.36 mm)
- Depth
- 1.70" (43.18 mm)
- Height
- 1.40" (35.56 mm)
What's in the Box
The package includes all necessary components for immediate deployment.
Package contents include POE4818G Omada 48V 18W Passive PoE Adapter Power Cord Wall Mounting Kits, POE4818G Omada 48V 18W Passive PoE Adapter. These included items support setup, installation, and immediate deployment without needing to source the core bundled accessories separately.
Highlights
- 48V passive PoE supported for compatible TP-Link Omada access points
- Auto-determines power requirements of connected devices for safe operation
- Convenient wall-mounting design with included mounting hardware
- Gigabit Ethernet ports maintain full network speed performance
- Plug-and-play installation requires no configuration or management
- Input voltage supports 120 V AC and 230 V AC for regional compatibility
- Compact dimensions ideal for space-constrained installations
- Certified to FCC and CE standards for regulatory compliance
Specifications
| Specifications | |
|---|---|
| Manufacturer | TP-LINK Technologies Co., Ltd |
| Manufacturer Part Number | POE4818G |
| Brand Name | TP-Link |
| Product Model | POE4818G |
| Product Name | POE4818G Omada 48V 18W Passive PoE Adapter |
| Product Type | PoE Injector |
| Power Description | |
| Input Voltage | 120 V AC,230 V AC |
| Maximum Output Voltage | 48 V DC |
| Maximum Output Power | 18 W |
| Interfaces/Ports | |
| Input Ports | 1 x 10/100/1000Base-T |
| Output Ports | 1 x 10/100/1000Base-T |
| Physical Characteristics | |
| Form Factor | Wall Mountable |
| Height | 1.40" (35.56 mm) |
| Width | 3.40" (86.36 mm) |
| Depth | 1.70" (43.18 mm) |
| Miscellaneous | |
| Package Contents | POE4818G Omada 48V 18W Passive PoE Adapter Power Cord Wall Mounting Kits |
| Compatibility | TP-Link Omada Access Points: EAP245 V4.0 EAP225 V5.0 EAP650-Outdoor V1.0 |
| Certifications & Standards | FCC CE |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
User Manual
FAQ
What is the difference between passive PoE and standard PoE?
Passive PoE delivers power over Ethernet cables without negotiation, using a fixed voltage like 48V DC. Standard PoE (802.3af/at) includes handshake protocols to determine power needs. This injector uses passive PoE, which is compatible with specific TP-Link Omada access points designed for this method.
Which TP-Link access points are compatible with this PoE injector?
The POE4818G is compatible with TP-Link Omada access points including the EAP245 V4.0, EAP225 V5.0, and EAP650-Outdoor V1.0. These models are designed to accept 48V passive PoE from this injector for both power and data connectivity.
Can this injector be used with non-TP-Link access points or other devices?
No, it is specifically designed for compatible TP-Link Omada access points that require 48V passive PoE. Using it with incompatible devices may cause damage due to voltage mismatch or lack of proper power negotiation.
What is the maximum cable length supported for PoE delivery?
Passive PoE typically supports distances up to 100 meters (328 feet) over standard Ethernet cabling, matching the maximum length for Gigabit Ethernet. This allows flexible placement of access points relative to the injector's location.
Does this injector require any configuration or software setup?
No, it operates as a plug-and-play device with no configuration needed. Simply connect the input port to your network switch or router, connect the output port to the compatible access point, and power on the injector. The auto-sensing feature handles power delivery automatically.
What certifications does this PoE injector have?
The POE4818G is certified to FCC and CE standards, ensuring compliance with electromagnetic interference and safety regulations in North America and Europe. It also meets RoHS (Restriction of Hazardous Substances) environmental requirements.
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