PoE Power Expansion Board for CVBS/USB to IP Video Encoder – 10W/20W

Add PoE power and Ethernet connectivity to compact CVBS-to-IP, USB-to-IP and embedded video encoder boards.

This PoE Power Expansion Board converts standard IEEE PoE input into regulated 12V DC power while maintaining 10/100Mbps Ethernet communication. It allows a compatible video encoder or embedded IP device to receive both power and network data through a single Ethernet cable.

This simplifies system wiring and eliminates the need for a separate local DC power adapter at the remote video device.

Two versions are available:

• 32 × 23 × 8mm – IEEE 802.3af Class 3, up to 10W output

• 38 × 38 × 10mm – IEEE 802.3at Class 4, up to 20W output

Both versions accept 44–57V PoE input and provide regulated 12V DC output for the connected video encoder or embedded device. Automatic PoE detection and power negotiation are supported.

Key Features

• Adds PoE power to embedded IP video encoder boards

• Supports CVBS-to-IP video encoders

• Supports USB-to-IP video encoders

• Supports other compatible embedded Ethernet devices

• IEEE 802.3af / 802.3at PoE support

• 44–57V PoE input

• Regulated 12V DC output

• 10/100Base-T Ethernet communication

• Automatic PoE standard detection

• Automatic power negotiation

• Ethernet data and power through one cable

• Surge protection

• Transformer isolation

• 12V DC output over-current protection

• Compact embedded PCB design

• OEM/ODM integration available

One Ethernet Cable for Power and Data

A major advantage of this module is that both Ethernet communication and DC power can be delivered through the same network cable.

Typical system:

PoE Switch / PoE Injector → Ethernet Cable → PoE Power Expansion Board → 10/100Mbps Ethernet + 12V DC → Video Encoder

The connected CVBS-to-IP, USB-to-IP or other compatible embedded device can therefore operate without a separate local DC power adapter.

This is particularly useful for remote cameras, compact video encoders and embedded monitoring equipment where reducing cables and installation complexity is important.

Two Power Versions

32 × 23 × 8mm – IEEE 802.3af

The smaller version is designed for compact applications requiring up to 10W output power.

• PoE Standard: IEEE 802.3af

• PD Classification: Class 3

• PoE Input: 44–57V DC

• Maximum Output Power: 10W

• DC Output: 12V / 0.8A

• Ethernet: 10/100Base-T

• Surge Protection: 4KV differential-mode

• Transformer Isolation: 1.5KV

• DC Output Over-Current Protection

• PCB Size: 32 × 23mm

• Total Height: Approx. 8mm

• Operating Temperature: -40°C to +70°C

• Plug-and-Play Design

38 × 38 × 10mm – IEEE 802.3at

The larger version is designed for applications requiring higher power output, up to 20W.

• PoE Standard: IEEE 802.3at

• PD Classification: Class 4

• PoE Input: 44–57V DC

• Maximum Output Power: 20W

• DC Output: 12V / 1.2A

• Ethernet: 10/100Base-T

• Surge Protection: 4KV common/differential-mode

• Transformer Isolation

• DC Output Over-Current Protection

• Aluminum PCB for improved heat dissipation

• PCB Size: 38 × 38mm

• Total Height: Approx. 10mm

• Operating Temperature: -45°C to +70°C

• Storage Temperature: -45°C to +70°C

The 38 × 38mm aluminum PCB version is suitable for applications with higher power requirements or where improved heat dissipation is beneficial.

PoE Input and Ethernet

Both versions use the Ethernet interface for PoE power input and 10/100Base-T network communication.

The module supports common PoE power-pair configurations, including:

• 1+, 2-

• 3+, 6-

• 4+, 5+

• 7-, 8-

The exact pin implementation depends on the selected PCB version and wiring configuration. Please confirm the required version before integrating the module into your equipment.

32 × 23mm Pin Definition

P1 – PoE Input / Ethernet Interface

P2 – Video Encoder Output

The 32 × 23mm version provides both 10/100Mbps Ethernet communication and regulated 12V DC power to the connected IP video encoder.

38 × 38mm Pin Definition

P1 – PoE Input Interface

P2 – Ethernet Output Interface

P3 – 12V DC Output

The P3 connector provides regulated 12V DC power for a compatible video encoder or embedded IP device.

Typical Applications

CVBS to IP Video Encoder

Add PoE functionality to a compact CVBS-to-IP encoder so that the encoder can receive power and Ethernet data through a single cable.

USB Camera to IP Encoder

The module can be used with compatible USB camera-to-IP or USB video encoder boards when the total power consumption is within the selected module's output capability.

IP Camera Modules

Integrate PoE power into compact embedded IP camera and video streaming equipment.

Industrial Cameras

Provide Ethernet connectivity and 12V power to compatible industrial camera systems.

Machine Vision

Useful for embedded machine-vision equipment requiring network communication and remote power.

Robotics

The compact board can be integrated into robotic systems and remote monitoring equipment where simplified Ethernet and power wiring is useful.

Industrial Monitoring

Add PoE capability to embedded video monitoring equipment.

OEM Video Streaming Products

The module is suitable for manufacturers integrating PoE into customized video encoders, cameras and network equipment.

Technical Specifications

How to Select the Correct Version

Choose the 32 × 23mm version when:

• The total system power requirement is up to 10W

• 12V / 0.8A output is sufficient

• A smaller PCB is required

• IEEE 802.3af compatibility is required

• Installation space is limited

Choose the 38 × 38mm version when:

• The system requires higher power

• Up to 20W output is required

• 12V / 1.2A output is required

• IEEE 802.3at compatibility is required

• Improved heat dissipation is desired

• A 38 × 38mm PCB can be accommodated

Important Compatibility Note

Before ordering, please confirm the power consumption and connector/pin configuration of your video encoder or embedded IP device.

The PoE expansion board provides a regulated 12V output, so the connected equipment must be compatible with the available voltage and maximum output current.

For the 32 × 23mm version, the maximum output is 12V / 0.8A.

For the 38 × 38mm version, the maximum output is 12V / 1.2A.

If you are unsure which version is suitable for your encoder, please send us the model number, power consumption and interface information. We can check compatibility before shipment.

OEM / ODM Customization

OEM and ODM integration is available for volume projects.

Possible customization options include:

• PCB dimensions

• Connector type

• Connector position

• Pin definition

• DC output configuration

• Ethernet interface

• Mechanical integration

• Customized labeling

• Integration with a specific video encoder

• Customized PCB design

If you are developing a PoE-enabled camera, video encoder or embedded network device, contact us with your project requirements and estimated quantity.

Frequently Asked Questions

What is the purpose of this PoE expansion board?

It adds PoE power capability to compatible Ethernet video encoders and embedded IP devices. The connected device can receive both Ethernet data and 12V DC power through the PoE system.

Can I use it with a CVBS-to-IP video encoder?

Yes. This is one of the main intended applications. The board can provide Ethernet communication and 12V DC power to a compatible CVBS-to-IP encoder.

Can I use it with a USB-to-IP video encoder?

Yes, provided that the encoder's power requirements are within the output capability of the selected PoE module.

What is the input voltage?

The PoE input range is 44–57V DC.

What is the output voltage?

The regulated DC output is 12V.

What is the maximum output power?

The 32 × 23mm version provides up to 10W.

The 38 × 38mm version provides up to 20W.

Does it support IEEE 802.3af?

Yes. The 32 × 23mm version supports IEEE 802.3af Class 3.

Does it support IEEE 802.3at?

Yes. The 38 × 38mm version supports IEEE 802.3at Class 4.

Does it support 10/100Mbps Ethernet?

Yes. Both versions support 10/100Base-T Ethernet communication.

Does it need a separate DC power adapter?

No, when connected to a compatible PoE switch or PoE injector, the Ethernet cable can provide both network data and power.

Can I order a sample?

Yes. Sample orders are available for engineering evaluation.

Please provide your video encoder model, power consumption and connector requirements so we can confirm compatibility before ordering.