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SP1321

Dual PoE Splitter IEEE 802.3af 13W
  • Hersteller Rayon
  • Kategorie: PoE Splitter
  • The Rayon SP1321 Dual PoE Splitter is a compact, high-efficiency IEEE 802.3af-compliant power and data separation module designed for network devices requiring dual DC outputs. It provides regulated 12.5V and 5V DC outputs from a single PoE input, enabling flexible power distribution for IP cameras, wireless access points, and other Ethernet-powered devices. The SP1321 is engineered for embedded applications, offering a small footprint (81.2 × 50.8 mm) and robust electrical isolation for reliable operation in industrial and commercial environments.
- IEEE 802.3af PD Class 0 Compliance: Fully compliant with IEEE 802.3af Power over Ethernet standard, ensuring interoperability with standard PoE switches and injectors.
- 13W Output Capability: Provides up to 13 watts of total power output, suitable for medium-power network devices.
- Dual DC Outputs: Simultaneous 12.5V and 5V regulated outputs for powering multiple subsystems or devices.
- Wide Input Voltage Range: Accepts 36–57V DC input, compatible with standard PoE voltage levels.
- Embedded Passive 10/100 Mbps LAN Interface: Integrated RJ45 interface supporting 10/100 Mbps Ethernet data throughput.
- Advanced Auto-Sensing Algorithm: Automatically detects and draws power only from IEEE 802.3af-compliant power sourcing equipment (PSE), preventing damage from non-PoE connections.
- Short Circuit Protection: Built-in safety mechanism to protect both the splitter and connected devices from electrical faults.
- High Electrical Isolation: 1500 Vrms input/output isolation for enhanced safety and noise immunity.
- Compact PCB Design: Open-frame module with dimensions of 81.2 × 50.8 mm, ideal for embedded or space-constrained installations.
- Operating Temperature Range: -15°C to +50°C, suitable for indoor and light outdoor applications.
- Support for Power Over Spare and Data Lines: Compatible with both PoE wiring schemes (Mode A and Mode B).
- High Efficiency: Typical conversion efficiency of 85%, minimizing power loss and heat generation.
- Industry-Standard Pinout: Simplifies integration into existing designs and systems.
- Optional Output Versions: Available in 3.3V, 5V, 9V, 12V, and 24V configurations for diverse application requirements.

Ursprungsland: Taiwan R.O.C.

Zolltarifnummer: 8517 6200 900

1. Product Overview

Product Name: Dual Power over Ethernet (PoE) Splitter
Model: SP1321
Series: SP13xx PoE Splitter Series
Article Number: SP1321
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
Websites: [www.computex.com.tw/rayon](http://www.computex.com.tw/rayon), [www.rayontech.com](http://www.rayontech.com)

The Rayon SP1321 Dual PoE Splitter is a compact, high-efficiency IEEE 802.3af-compliant power and data separation module designed for network devices requiring dual DC outputs. It provides regulated 12.5V and 5V DC outputs from a single PoE input, enabling flexible power distribution for IP cameras, wireless access points, and other Ethernet-powered devices. The SP1321 is engineered for embedded applications, offering a small footprint (81.2 × 50.8 mm) and robust electrical isolation for reliable operation in industrial and commercial environments.




2. Key Features

- IEEE 802.3af PD Class 0 Compliance: Fully compliant with IEEE 802.3af Power over Ethernet standard, ensuring interoperability with standard PoE switches and injectors.
- 13W Output Capability: Provides up to 13 watts of total power output, suitable for medium-power network devices.
- Dual DC Outputs: Simultaneous 12.5V and 5V regulated outputs for powering multiple subsystems or devices.
- Wide Input Voltage Range: Accepts 36–57V DC input, compatible with standard PoE voltage levels.
- Embedded Passive 10/100 Mbps LAN Interface: Integrated RJ45 interface supporting 10/100 Mbps Ethernet data throughput.
- Advanced Auto-Sensing Algorithm: Automatically detects and draws power only from IEEE 802.3af-compliant power sourcing equipment (PSE), preventing damage from non-PoE connections.
- Short Circuit Protection: Built-in safety mechanism to protect both the splitter and connected devices from electrical faults.
- High Electrical Isolation: 1500 Vrms input/output isolation for enhanced safety and noise immunity.
- Compact PCB Design: Open-frame module with dimensions of 81.2 × 50.8 mm, ideal for embedded or space-constrained installations.
- Operating Temperature Range: -15°C to +50°C, suitable for indoor and light outdoor applications.
- Support for Power Over Spare and Data Lines: Compatible with both PoE wiring schemes (Mode A and Mode B).
- High Efficiency: Typical conversion efficiency of 85%, minimizing power loss and heat generation.
- Industry-Standard Pinout: Simplifies integration into existing designs and systems.
- Optional Output Versions: Available in 3.3V, 5V, 9V, 12V, and 24V configurations for diverse application requirements.




3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Model Number | SP1321 |
| Input Voltage Range | 36–57 VDC |
| Input Current (No Load) | 20 mA |
| Input Current (Full Load) | 360 mA |
| Output Voltage (Primary) | 12.5 VDC |
| Output Current (Primary) | Up to 1.05 A |
| Output Voltage (Secondary) | 5 VDC |
| Output Current (Secondary) | Up to 2.0 A |
| Total Output Power | 13 W (IEEE 802.3af Class 0) |
| Efficiency (Typical) | 85% |
| Isolation Voltage | 1500 Vrms (Input to Output) |
| Operating Temperature | -15°C to +50°C |
| Storage Temperature | -40°C to +85°C (typical for similar modules) |
| Dimensions | 81.2 mm × 50.8 mm (±10 mil) |
| Weight | Approx. 40–60 g (open-frame PCB) |
| Package Type | Open-frame PCB module |
| Fuse Rating | 0.7 A external fuse recommended |
| LAN Interface | Embedded passive 10/100 Mbps RJ45 |
| PoE Modes Supported | Power over Data Lines (Mode A) and Power over Spare Lines (Mode B) |
| Protection Features | Short-circuit protection, input surge protection |
| Compliance | IEEE 802.3af PD Class 0 |
| Isolation Type | Primary isolated DC-DC converter |
| Mounting Type | PCB mount or embedded integration |




4. Functionality

The SP1321 PoE Splitter functions as an intermediary device that separates power and data transmitted over a single Ethernet cable. When connected to a PoE-enabled switch or injector, the SP1321 receives both DC power and Ethernet data through its RJ45 input port. The module’s internal circuitry isolates and converts the incoming 36–57V DC PoE voltage into two regulated DC outputs—12.5V and 5V—while simultaneously passing through the Ethernet data to the output port.

Operational Process:
1. Power Detection: The SP1321 uses an advanced auto-sensing algorithm to detect IEEE 802.3af-compliant power sources.
2. Power Negotiation: Once a valid PSE is detected, the module classifies itself as a Class 0 powered device (PD).
3. Power Conversion: The internal isolated DC-DC converter steps down the PoE voltage to 12.5V and 5V outputs.
4. Data Pass-Through: The embedded 10/100 Mbps LAN interface ensures uninterrupted Ethernet data transmission.
5. Protection & Regulation: Integrated short-circuit and overload protection maintain stable operation and safeguard connected devices.

Use Cases and Applications:
- IP Cameras: Powering surveillance cameras that require 12V for the camera and 5V for auxiliary modules (e.g., sensors or wireless transmitters).
- Wireless Access Points (APs): Supplying dual voltage rails for mainboard and radio modules.
- VoIP Phones and Terminals: Providing regulated power for communication devices.
- Embedded Network Systems: Integration into custom network appliances or IoT gateways.
- Outdoor and Industrial Devices: Suitable for outdoor APs and IP cameras when enclosed in weatherproof housings.

Compatibility:
- Compatible with IEEE 802.3af PoE switches, midspan injectors, and PSE devices.
- Can be paired with Rayon PD1301 (13W PoE device module) for complete PoE solutions.
- Supports both 10 Mbps and 100 Mbps Ethernet speeds.




5. Components & Accessories

Included Components:
- SP1321 PoE Splitter module (open-frame PCB)
- Embedded RJ45 LAN interface (10/100 Mbps)
- Dual DC output terminals (12.5V and 5V)
- Integrated isolation and protection circuitry

Optional Accessories:
- External fuse (0.7A recommended)
- Mounting hardware or enclosure (for embedded applications)
- Compatible PoE injector or switch (IEEE 802.3af)
- Companion modules:
- PD1301: 13W PoE device module (for SP1321)
- PD2401: 24W PoE device module (for SP2421)
- SP2401: 24W Gigabit PoE power splitter

Connectors:
- Input: RJ45 (PoE In) – receives power and data from PSE
- Output: RJ45 (Data Out) – passes Ethernet data to the powered device
- DC Outputs: Dual regulated outputs (12.5V and 5V) via terminal pins or solder pads




6. Installation & Setup

Requirements:
- IEEE 802.3af-compliant PoE switch or injector
- Ethernet cabling (Cat5e or higher recommended)
- Compatible powered device requiring 12V and/or 5V DC input

Installation Steps:
1. Connect the PoE input port of the SP1321 to a PoE-enabled switch or injector using a standard Ethernet cable.
2. Connect the data output port to the target device’s Ethernet input.
3. Wire the DC output terminals to the device’s power input (observe correct voltage and polarity).
4. Verify that the total power consumption does not exceed 13W.
5. Power on the PoE source; the SP1321 will automatically detect and begin operation.

Mounting Options:
- Direct PCB integration within a host device
- Enclosure mounting for standalone use
- Can be installed in network cabinets or junction boxes for structured cabling systems

Configuration:
- No software configuration required; plug-and-play operation
- Auto-sensing ensures compatibility with standard PoE sources




7. Performance & Capabilities

- Power Output: 13W total, distributed across dual outputs (12.5V @ 1.05A and 5V @ 2A)
- Efficiency: 85% typical, ensuring minimal energy loss
- Isolation: 1500 Vrms between input and output, providing robust protection against surges and ground loops
- Data Throughput: Supports 10/100 Mbps Ethernet speeds without degradation
- Thermal Performance: Operates reliably within -15°C to +50°C ambient temperature range
- Load Regulation: Maintains stable output voltage under varying load conditions
- Protection: Automatic short-circuit and overload protection with self-recovery
- Limitations: Not designed for Gigabit Ethernet (10/100 Mbps only); total output limited to 13W per IEEE 802.3af standard

Performance Summary:
The SP1321 delivers consistent and efficient power conversion for medium-power network devices. Its dual-output design allows simultaneous powering of multiple voltage domains, reducing the need for separate power supplies. The module’s high isolation and efficiency make it suitable for embedded and industrial-grade applications where reliability and compactness are critical.




8. Standards & Compliance

- IEEE 802.3af: Fully compliant Powered Device (PD) interface
- IEEE 802.3at (partial support): Compatible with higher-power PSEs when paired with appropriate modules
- Safety Isolation: 1500 Vrms input/output isolation per industry standards
- RoHS Compliance: Manufactured using lead-free and environmentally safe materials (typical for Rayon products)
- EMC Compliance: Designed to meet standard electromagnetic compatibility requirements for network equipment
- Industry Standards:
- Power over Ethernet (PoE) IEEE 802.3af
- Ethernet 10BASE-T / 100BASE-TX
- DC-DC converter design standards for isolation and efficiency




9. Additional Information

Warranty:
Standard manufacturer warranty (typically 1 year) covering defects in materials and workmanship.

Technical Support:
Rayon Technology provides technical documentation, integration support, and product customization services. Contact via email or phone for assistance with design integration or troubleshooting.

Maintenance:
- No regular maintenance required; designed for continuous operation.
- Ensure adequate ventilation and protection from moisture and dust when used in enclosed environments.
- Periodic inspection of connectors and wiring recommended for long-term reliability.

Product Updates and Variants:
- SP2421: Higher power version (24W output, IEEE 802.3at support)
- PD1205: Secondary non-isolated DC-DC module (12–24V input, 5V/2A output)
- Custom Voltage Versions: 3.3V, 9V, 12V, and 24V output options available upon request

Related Products:
- PD2401: 24W PoE device module
- PD1301: 13W PoE device module
- SP2401: 24W Gigabit PoE power splitter

Manufacturer Background:
Rayon Technology Co., Ltd. specializes in Power over Ethernet modules, DC-DC converters, and network power solutions. The company’s products are widely used in telecommunications, surveillance, and industrial automation sectors.




Summary

The Rayon SP1321 Dual PoE Splitter is a compact, efficient, and reliable solution for separating power and data in Ethernet-based systems. With full IEEE 802.3af compliance, dual regulated outputs (12.5V and 5V), and robust electrical isolation, it is ideal for powering IP cameras, wireless access points, and embedded network devices. Its high efficiency, short-circuit protection, and wide input voltage range ensure dependable performance in diverse environments. The SP1321’s open-frame design and industry-standard pinout make it easy to integrate into OEM systems, while its compatibility with Rayon’s PD modules provides a complete PoE power management ecosystem.

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