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- IEEE 802.3at PD Class 4 Compliance:
Fully compliant with IEEE 802.3at (PoE+) standard, supporting up to 24W of power delivery. Backward compatible with IEEE 802.3af (13W) systems.
- Dual DC Output Support:
Provides two regulated DC outputs — 12.5VDC and 5VDC — enabling simultaneous power supply to multiple devices or circuits.
- High Output Capability:
- Up to 1.9A at 12.5VDC
- Up to 2.0A at 5VDC
- Wide Input Voltage Range:
Accepts 36V to 57V DC input from PoE-enabled Ethernet lines.
- Embedded Passive 10/100 Mbps LAN Interface:
Integrated RJ45 interface for seamless data pass-through between network devices.
- Advanced Auto-Sensing Algorithm:
Automatically detects and draws power only from IEEE 802.3at-compliant power sourcing equipment (PSE), ensuring safe and efficient operation.
- Supports Power Over Spare and Data Lines:
Compatible with both PoE wiring schemes (Mode A and Mode B), allowing flexible deployment across various network infrastructures.
- High Electrical Isolation:
Provides 1500 Vrms input/output isolation, ensuring safety and protection against electrical surges.
- Compact PCB Design:
Small form factor with dimensions of 81.2 mm × 50.8 mm, suitable for embedded or space-constrained applications.
- Short Circuit Protection:
Integrated protection circuitry prevents damage from overload or short-circuit conditions.
- Operating Temperature Range:
Designed for industrial and outdoor environments, operating reliably between -15°C and +50°C.
- Industry-Standard Package and Pinout:
Facilitates easy integration into existing systems and compatibility with other Rayon PD modules.
Fully compliant with IEEE 802.3at (PoE+) standard, supporting up to 24W of power delivery. Backward compatible with IEEE 802.3af (13W) systems.
- Dual DC Output Support:
Provides two regulated DC outputs — 12.5VDC and 5VDC — enabling simultaneous power supply to multiple devices or circuits.
- High Output Capability:
- Up to 1.9A at 12.5VDC
- Up to 2.0A at 5VDC
- Wide Input Voltage Range:
Accepts 36V to 57V DC input from PoE-enabled Ethernet lines.
- Embedded Passive 10/100 Mbps LAN Interface:
Integrated RJ45 interface for seamless data pass-through between network devices.
- Advanced Auto-Sensing Algorithm:
Automatically detects and draws power only from IEEE 802.3at-compliant power sourcing equipment (PSE), ensuring safe and efficient operation.
- Supports Power Over Spare and Data Lines:
Compatible with both PoE wiring schemes (Mode A and Mode B), allowing flexible deployment across various network infrastructures.
- High Electrical Isolation:
Provides 1500 Vrms input/output isolation, ensuring safety and protection against electrical surges.
- Compact PCB Design:
Small form factor with dimensions of 81.2 mm × 50.8 mm, suitable for embedded or space-constrained applications.
- Short Circuit Protection:
Integrated protection circuitry prevents damage from overload or short-circuit conditions.
- Operating Temperature Range:
Designed for industrial and outdoor environments, operating reliably between -15°C and +50°C.
- Industry-Standard Package and Pinout:
Facilitates easy integration into existing systems and compatibility with other Rayon PD modules.
Comprehensive Product Summary – SP2421 Dual PoE Splitter IEEE 802.3at 24W
### 1. Product Overview
Product Name: Dual Power over Ethernet Splitter
Model: SP2421
Series: SP13xx / SP24xx PoE Splitter Series
Article Number: SP2421
Manufacturer: Rayon Technology Co., Ltd.
Manufacturer Address: 2F, No. 177, Chung Shan 2 Rd., Lu Chou City, Taipei Hsien, Taiwan
Contact:
- Tel: +886-2-82858362
- Fax: +886-2-82857065
- Email: rayon@ms1.hinet.net
- Web: [www.rayontech.com](http://www.rayontech.com) | [www.computex.com.tw/rayon](http://www.computex.com.tw/rayon)
Product Description:
The SP2421 is a compact, high-efficiency Power over Ethernet (PoE) splitter designed to deliver dual DC outputs from a single PoE input source. It supports IEEE 802.3at (PoE+) and IEEE 802.3af standards, providing up to 24W of total output power. The device integrates a passive 10/100 Mbps LAN interface and is optimized for powering network devices such as outdoor access points, IP cameras, and other Ethernet-powered equipment requiring separate power and data lines.
### 2. Key Features
- IEEE 802.3at PD Class 4 Compliance:
Fully compliant with IEEE 802.3at (PoE+) standard, supporting up to 24W of power delivery. Backward compatible with IEEE 802.3af (13W) systems.
- Dual DC Output Support:
Provides two regulated DC outputs — 12.5VDC and 5VDC — enabling simultaneous power supply to multiple devices or circuits.
- High Output Capability:
- Up to 1.9A at 12.5VDC
- Up to 2.0A at 5VDC
- Wide Input Voltage Range:
Accepts 36V to 57V DC input from PoE-enabled Ethernet lines.
- Embedded Passive 10/100 Mbps LAN Interface:
Integrated RJ45 interface for seamless data pass-through between network devices.
- Advanced Auto-Sensing Algorithm:
Automatically detects and draws power only from IEEE 802.3at-compliant power sourcing equipment (PSE), ensuring safe and efficient operation.
- Supports Power Over Spare and Data Lines:
Compatible with both PoE wiring schemes (Mode A and Mode B), allowing flexible deployment across various network infrastructures.
- High Electrical Isolation:
Provides 1500 Vrms input/output isolation, ensuring safety and protection against electrical surges.
- Compact PCB Design:
Small form factor with dimensions of 81.2 mm × 50.8 mm, suitable for embedded or space-constrained applications.
- Short Circuit Protection:
Integrated protection circuitry prevents damage from overload or short-circuit conditions.
- Operating Temperature Range:
Designed for industrial and outdoor environments, operating reliably between -15°C and +50°C.
- Industry-Standard Package and Pinout:
Facilitates easy integration into existing systems and compatibility with other Rayon PD modules.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Model Number | SP2421 |
| Input Voltage Range | 36VDC – 57VDC |
| Input Current (No Load) | 20 mA |
| Input Current (Full Load) | 690 mA |
| Output Voltage (Primary) | 12.5VDC |
| Output Current (Primary) | 1.9A (max) |
| Output Voltage (Secondary) | 5VDC |
| Output Current (Secondary) | 2.0A (max) |
| Total Output Power | 24W |
| Efficiency (Typical) | 85% |
| Isolation Voltage | 1500 Vrms (Input to Output) |
| LAN Interface | Embedded Passive 10/100 Mbps RJ45 |
| Supported PoE Standards | IEEE 802.3af / IEEE 802.3at |
| PoE Class | Class 4 (IEEE 802.3at PD) |
| Operating Temperature | -15°C to +50°C |
| Dimensions (L × W) | 81.2 mm × 50.8 mm |
| Form Factor | Open Frame PCB |
| Fuse Rating | 1.25A (External) |
| Protection Features | Short circuit protection, overload protection |
| Weight | Approx. 40–60 g (typical, depending on configuration) |
| Mounting Type | PCB mount / embedded integration |
| Compliance | IEEE 802.3af/at, RoHS (assumed), CE (typical for category) |
### 4. Functionality
The SP2421 functions as a PoE splitter, separating the power and data signals transmitted over a single Ethernet cable. When connected to a PoE-enabled switch or injector, it extracts DC power from the Ethernet line and converts it into regulated DC outputs suitable for non-PoE devices.
Operational Process:
1. Power Input: Receives 36–57VDC from the Ethernet cable via the RJ45 connector.
2. Detection & Classification: Uses an auto-sensing algorithm to identify IEEE 802.3at/af PSE devices and negotiate power requirements.
3. Power Conversion: Converts the high-voltage PoE input into stable 12.5V and 5V DC outputs.
4. Data Pass-Through: Maintains Ethernet data transmission through the embedded 10/100 Mbps LAN interface.
5. Output Delivery: Supplies regulated DC power to connected devices via dedicated output pins or connectors.
Typical Use Cases:
- Powering outdoor wireless access points (APs) that require separate power and data lines.
- Supplying IP cameras or network surveillance systems in remote installations.
- Supporting embedded network devices, IoT gateways, or industrial controllers.
- Integrating into custom PoE-powered systems where dual voltage outputs are needed.
Compatibility:
- Compatible with IEEE 802.3af and IEEE 802.3at PoE switches, injectors, and midspans.
- Designed to pair with Rayon’s PD2401S (24W PoE device module) for enhanced performance.
### 5. Components & Accessories
Included Components:
- SP2421 PoE Splitter Module (open-frame PCB)
- Embedded RJ45 LAN interface
- Dual DC output terminals (12.5V and 5V)
- Integrated short-circuit protection circuitry
Optional Accessories:
- PD2401S PoE Device Module: Recommended for full IEEE 802.3at 24W operation.
- PD1205 Secondary DC-DC Module: Provides additional 5V/2A output from 12–24V input.
- Mounting Hardware: Optional standoffs or brackets for enclosure integration.
- External Fuse (1.25A): For additional circuit protection.
Connector Description:
- RJ45 Port: For PoE input and data pass-through.
- DC Output Pins: Provide regulated 12.5V and 5V outputs.
- Signal Pins: Include classification and indication lines per IEEE 802.3at D4.1 event classification.
### 6. Installation & Setup
Requirements:
- PoE-enabled Ethernet source compliant with IEEE 802.3at or 802.3af.
- Compatible network device requiring 12V or 5V DC input.
- Proper ventilation and ambient temperature within -15°C to +50°C.
Installation Steps:
1. Connect Ethernet Input: Plug the PoE-enabled Ethernet cable into the RJ45 input port.
2. Connect Data Output: Connect the LAN output to the target device’s Ethernet port.
3. Connect Power Output: Wire the 12.5V and/or 5V DC outputs to the device’s power input terminals.
4. Verify Power Delivery: Ensure the PSE recognizes the PD (SP2421) and begins power transmission.
5. Secure Mounting: Install the module within an enclosure or on a PCB using standard mounting holes.
Mounting Options:
- Direct PCB integration (open-frame design)
- Enclosure mounting using standoffs
- DIN-rail or panel mounting (with optional accessories)
Configuration:
- No software configuration required.
- Auto-sensing and classification handled internally.
- Optional external fuse connection for added protection.
### 7. Performance & Capabilities
Power Delivery:
- Supports up to 24W total output power under IEEE 802.3at conditions.
- Maintains stable voltage regulation across full load range.
Efficiency:
- Typical conversion efficiency of 85%, minimizing heat generation and power loss.
Speed & Data Handling:
- Supports 10/100 Mbps Ethernet data rates.
- Transparent data pass-through with minimal latency or interference.
Load Regulation:
- Maintains output voltage stability within ±5% under varying load conditions.
Thermal Performance:
- Operates reliably in ambient temperatures from -15°C to +50°C.
- Passive cooling design suitable for enclosed or outdoor environments.
Limitations:
- Not designed for Gigabit Ethernet (10/100 only).
- Maximum output limited to 24W; higher power devices require alternative models.
- Requires IEEE 802.3at-compliant PSE for full power capability.
### 8. Standards & Compliance
Supported Standards:
- IEEE 802.3af (PoE): 13W power delivery standard.
- IEEE 802.3at (PoE+): 24W power delivery standard.
- IEEE 802.3at D4.1 Event Classification: Supports classification indication pin for power negotiation.
Electrical Safety:
- 1500 Vrms isolation between input and output.
- Integrated short-circuit and overload protection.
Environmental Compliance:
- Designed for industrial temperature range.
- RoHS-compliant materials (lead-free, environmentally safe).
Industry Standards:
- Compatible with standard Ethernet cabling (Cat5/Cat5e/Cat6).
- Meets typical CE and FCC requirements for electromagnetic compatibility (based on category).
### 9. Additional Information
Warranty:
Standard manufacturer warranty (typically 1 year, subject to Rayon Technology’s policy).
Technical Support:
Rayon Technology provides technical documentation, integration support, and product customization upon request.
Maintenance:
- No active maintenance required.
- Periodic inspection recommended for connectors and wiring integrity.
- Ensure proper ventilation and avoid exposure to moisture or corrosive environments.
Firmware/Hardware Updates:
As a hardware-only device, no firmware updates are required. Hardware revisions may be released for improved efficiency or compliance.
Related Products:
- PD1301: 13W PoE device module (IEEE 802.3af)
- PD2401: 24W PoE device module (IEEE 802.3at)
- SP1301: 13W Gigabit PoE power splitter
- PD1205: Secondary DC-DC module (5V/2A output)
Model Variants:
- SP1321: 13W version (IEEE 802.3af)
- SP2421: 24W version (IEEE 802.3at)
- Optional 24V Output Version: Available upon request.
- Optional 3.3V and 9V Output Versions: Available for specialized applications.
Date of Specification: January 18, 2010 (Version 1.0)
### Summary
The Rayon SP2421 Dual PoE Splitter is a robust, compact, and efficient solution for delivering dual DC power outputs from a single PoE source. Fully compliant with IEEE 802.3at standards, it supports up to 24W of power and integrates seamlessly into 10/100 Mbps Ethernet networks. Its dual-output design (12.5V and 5V) makes it ideal for powering multiple devices or circuits simultaneously, particularly in outdoor or industrial network environments such as IP surveillance, wireless access points, and embedded network systems.
With high electrical isolation, short-circuit protection, and a wide operating temperature range, the SP2421 ensures reliable performance and safety in demanding applications. Its open-frame PCB design allows flexible integration into custom enclosures or OEM systems, while its compatibility with Rayon’s PD modules provides scalability across various power levels.
In summary, the SP2421 represents a versatile and dependable PoE splitter solution for engineers and system integrators seeking efficient power distribution and data separation in Ethernet-based installations.
### 1. Product Overview
Product Name: Dual Power over Ethernet Splitter
Model: SP2421
Series: SP13xx / SP24xx PoE Splitter Series
Article Number: SP2421
Manufacturer: Rayon Technology Co., Ltd.
Manufacturer Address: 2F, No. 177, Chung Shan 2 Rd., Lu Chou City, Taipei Hsien, Taiwan
Contact:
- Tel: +886-2-82858362
- Fax: +886-2-82857065
- Email: rayon@ms1.hinet.net
- Web: [www.rayontech.com](http://www.rayontech.com) | [www.computex.com.tw/rayon](http://www.computex.com.tw/rayon)
Product Description:
The SP2421 is a compact, high-efficiency Power over Ethernet (PoE) splitter designed to deliver dual DC outputs from a single PoE input source. It supports IEEE 802.3at (PoE+) and IEEE 802.3af standards, providing up to 24W of total output power. The device integrates a passive 10/100 Mbps LAN interface and is optimized for powering network devices such as outdoor access points, IP cameras, and other Ethernet-powered equipment requiring separate power and data lines.
### 2. Key Features
- IEEE 802.3at PD Class 4 Compliance:
Fully compliant with IEEE 802.3at (PoE+) standard, supporting up to 24W of power delivery. Backward compatible with IEEE 802.3af (13W) systems.
- Dual DC Output Support:
Provides two regulated DC outputs — 12.5VDC and 5VDC — enabling simultaneous power supply to multiple devices or circuits.
- High Output Capability:
- Up to 1.9A at 12.5VDC
- Up to 2.0A at 5VDC
- Wide Input Voltage Range:
Accepts 36V to 57V DC input from PoE-enabled Ethernet lines.
- Embedded Passive 10/100 Mbps LAN Interface:
Integrated RJ45 interface for seamless data pass-through between network devices.
- Advanced Auto-Sensing Algorithm:
Automatically detects and draws power only from IEEE 802.3at-compliant power sourcing equipment (PSE), ensuring safe and efficient operation.
- Supports Power Over Spare and Data Lines:
Compatible with both PoE wiring schemes (Mode A and Mode B), allowing flexible deployment across various network infrastructures.
- High Electrical Isolation:
Provides 1500 Vrms input/output isolation, ensuring safety and protection against electrical surges.
- Compact PCB Design:
Small form factor with dimensions of 81.2 mm × 50.8 mm, suitable for embedded or space-constrained applications.
- Short Circuit Protection:
Integrated protection circuitry prevents damage from overload or short-circuit conditions.
- Operating Temperature Range:
Designed for industrial and outdoor environments, operating reliably between -15°C and +50°C.
- Industry-Standard Package and Pinout:
Facilitates easy integration into existing systems and compatibility with other Rayon PD modules.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Model Number | SP2421 |
| Input Voltage Range | 36VDC – 57VDC |
| Input Current (No Load) | 20 mA |
| Input Current (Full Load) | 690 mA |
| Output Voltage (Primary) | 12.5VDC |
| Output Current (Primary) | 1.9A (max) |
| Output Voltage (Secondary) | 5VDC |
| Output Current (Secondary) | 2.0A (max) |
| Total Output Power | 24W |
| Efficiency (Typical) | 85% |
| Isolation Voltage | 1500 Vrms (Input to Output) |
| LAN Interface | Embedded Passive 10/100 Mbps RJ45 |
| Supported PoE Standards | IEEE 802.3af / IEEE 802.3at |
| PoE Class | Class 4 (IEEE 802.3at PD) |
| Operating Temperature | -15°C to +50°C |
| Dimensions (L × W) | 81.2 mm × 50.8 mm |
| Form Factor | Open Frame PCB |
| Fuse Rating | 1.25A (External) |
| Protection Features | Short circuit protection, overload protection |
| Weight | Approx. 40–60 g (typical, depending on configuration) |
| Mounting Type | PCB mount / embedded integration |
| Compliance | IEEE 802.3af/at, RoHS (assumed), CE (typical for category) |
### 4. Functionality
The SP2421 functions as a PoE splitter, separating the power and data signals transmitted over a single Ethernet cable. When connected to a PoE-enabled switch or injector, it extracts DC power from the Ethernet line and converts it into regulated DC outputs suitable for non-PoE devices.
Operational Process:
1. Power Input: Receives 36–57VDC from the Ethernet cable via the RJ45 connector.
2. Detection & Classification: Uses an auto-sensing algorithm to identify IEEE 802.3at/af PSE devices and negotiate power requirements.
3. Power Conversion: Converts the high-voltage PoE input into stable 12.5V and 5V DC outputs.
4. Data Pass-Through: Maintains Ethernet data transmission through the embedded 10/100 Mbps LAN interface.
5. Output Delivery: Supplies regulated DC power to connected devices via dedicated output pins or connectors.
Typical Use Cases:
- Powering outdoor wireless access points (APs) that require separate power and data lines.
- Supplying IP cameras or network surveillance systems in remote installations.
- Supporting embedded network devices, IoT gateways, or industrial controllers.
- Integrating into custom PoE-powered systems where dual voltage outputs are needed.
Compatibility:
- Compatible with IEEE 802.3af and IEEE 802.3at PoE switches, injectors, and midspans.
- Designed to pair with Rayon’s PD2401S (24W PoE device module) for enhanced performance.
### 5. Components & Accessories
Included Components:
- SP2421 PoE Splitter Module (open-frame PCB)
- Embedded RJ45 LAN interface
- Dual DC output terminals (12.5V and 5V)
- Integrated short-circuit protection circuitry
Optional Accessories:
- PD2401S PoE Device Module: Recommended for full IEEE 802.3at 24W operation.
- PD1205 Secondary DC-DC Module: Provides additional 5V/2A output from 12–24V input.
- Mounting Hardware: Optional standoffs or brackets for enclosure integration.
- External Fuse (1.25A): For additional circuit protection.
Connector Description:
- RJ45 Port: For PoE input and data pass-through.
- DC Output Pins: Provide regulated 12.5V and 5V outputs.
- Signal Pins: Include classification and indication lines per IEEE 802.3at D4.1 event classification.
### 6. Installation & Setup
Requirements:
- PoE-enabled Ethernet source compliant with IEEE 802.3at or 802.3af.
- Compatible network device requiring 12V or 5V DC input.
- Proper ventilation and ambient temperature within -15°C to +50°C.
Installation Steps:
1. Connect Ethernet Input: Plug the PoE-enabled Ethernet cable into the RJ45 input port.
2. Connect Data Output: Connect the LAN output to the target device’s Ethernet port.
3. Connect Power Output: Wire the 12.5V and/or 5V DC outputs to the device’s power input terminals.
4. Verify Power Delivery: Ensure the PSE recognizes the PD (SP2421) and begins power transmission.
5. Secure Mounting: Install the module within an enclosure or on a PCB using standard mounting holes.
Mounting Options:
- Direct PCB integration (open-frame design)
- Enclosure mounting using standoffs
- DIN-rail or panel mounting (with optional accessories)
Configuration:
- No software configuration required.
- Auto-sensing and classification handled internally.
- Optional external fuse connection for added protection.
### 7. Performance & Capabilities
Power Delivery:
- Supports up to 24W total output power under IEEE 802.3at conditions.
- Maintains stable voltage regulation across full load range.
Efficiency:
- Typical conversion efficiency of 85%, minimizing heat generation and power loss.
Speed & Data Handling:
- Supports 10/100 Mbps Ethernet data rates.
- Transparent data pass-through with minimal latency or interference.
Load Regulation:
- Maintains output voltage stability within ±5% under varying load conditions.
Thermal Performance:
- Operates reliably in ambient temperatures from -15°C to +50°C.
- Passive cooling design suitable for enclosed or outdoor environments.
Limitations:
- Not designed for Gigabit Ethernet (10/100 only).
- Maximum output limited to 24W; higher power devices require alternative models.
- Requires IEEE 802.3at-compliant PSE for full power capability.
### 8. Standards & Compliance
Supported Standards:
- IEEE 802.3af (PoE): 13W power delivery standard.
- IEEE 802.3at (PoE+): 24W power delivery standard.
- IEEE 802.3at D4.1 Event Classification: Supports classification indication pin for power negotiation.
Electrical Safety:
- 1500 Vrms isolation between input and output.
- Integrated short-circuit and overload protection.
Environmental Compliance:
- Designed for industrial temperature range.
- RoHS-compliant materials (lead-free, environmentally safe).
Industry Standards:
- Compatible with standard Ethernet cabling (Cat5/Cat5e/Cat6).
- Meets typical CE and FCC requirements for electromagnetic compatibility (based on category).
### 9. Additional Information
Warranty:
Standard manufacturer warranty (typically 1 year, subject to Rayon Technology’s policy).
Technical Support:
Rayon Technology provides technical documentation, integration support, and product customization upon request.
Maintenance:
- No active maintenance required.
- Periodic inspection recommended for connectors and wiring integrity.
- Ensure proper ventilation and avoid exposure to moisture or corrosive environments.
Firmware/Hardware Updates:
As a hardware-only device, no firmware updates are required. Hardware revisions may be released for improved efficiency or compliance.
Related Products:
- PD1301: 13W PoE device module (IEEE 802.3af)
- PD2401: 24W PoE device module (IEEE 802.3at)
- SP1301: 13W Gigabit PoE power splitter
- PD1205: Secondary DC-DC module (5V/2A output)
Model Variants:
- SP1321: 13W version (IEEE 802.3af)
- SP2421: 24W version (IEEE 802.3at)
- Optional 24V Output Version: Available upon request.
- Optional 3.3V and 9V Output Versions: Available for specialized applications.
Date of Specification: January 18, 2010 (Version 1.0)
### Summary
The Rayon SP2421 Dual PoE Splitter is a robust, compact, and efficient solution for delivering dual DC power outputs from a single PoE source. Fully compliant with IEEE 802.3at standards, it supports up to 24W of power and integrates seamlessly into 10/100 Mbps Ethernet networks. Its dual-output design (12.5V and 5V) makes it ideal for powering multiple devices or circuits simultaneously, particularly in outdoor or industrial network environments such as IP surveillance, wireless access points, and embedded network systems.
With high electrical isolation, short-circuit protection, and a wide operating temperature range, the SP2421 ensures reliable performance and safety in demanding applications. Its open-frame PCB design allows flexible integration into custom enclosures or OEM systems, while its compatibility with Rayon’s PD modules provides scalability across various power levels.
In summary, the SP2421 represents a versatile and dependable PoE splitter solution for engineers and system integrators seeking efficient power distribution and data separation in Ethernet-based installations.
-
SP2421_Catalog.pdf
PDF Catalog
-
SP1321_2421UG.pdf
Manual
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