Comprehensive Product Summary – RAYON GPI4001 PoE Power Injector

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### 1. Product Overview

Product Name: GPI4001
Model: GPI4001 (also available as GPI4001A and GPI4001C variants)
Series: RAYON PoE Power Injector Series
Article Number: GPI4001
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)

Product Description:
The RAYON GPI4001 is a four-port Gigabit Power over Ethernet (PoE) power injector designed to add PoE capability to existing non-PoE network infrastructures. It supports 10/100/1000 Mbps Ethernet data rates and provides 48VDC power input for remote power feeding over standard RJ45 cabling. Fully compliant with IEEE 802.3af standards and supporting Cisco legacy detection, the GPI4001 delivers up to 15.4W per port, with a total power budget of 65W. The GPI4001C variant supports up to 30W per port for high-power applications.

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### 2. Key Features

- Four-Port Gigabit PoE Injector: Provides four independent PoE-enabled RJ45 ports for simultaneous power and data transmission.
- IEEE 802.3af Compatibility: Fully compliant with the IEEE 802.3af PoE standard, ensuring interoperability with standard PoE-powered devices (PDs).
- Cisco Legacy Detection: Supports Cisco’s proprietary PoE detection mechanism for compatibility with older Cisco devices.
- High Power Output (Optional): The GPI4001C model supports up to 30W per port, suitable for IEEE 802.3at or high-power PoE applications.
- Dynamic Power Management: Intelligent power allocation across ports ensures stable operation and prevents overload conditions.
- LED Indicators: Front-panel LEDs provide real-time status for power, overload, short-circuit, and insufficient power conditions.
- Compact Design: Space-efficient enclosure (195 × 131 × 45 mm) ideal for wiring closets, network cabinets, or desktop deployment.
- Flexible Power Input: Operates with an external 48VDC power source, allowing integration with centralized DC power systems or UPS units.
- Scalable and Cost-Effective: Enables PoE functionality without replacing existing Ethernet switches, reducing infrastructure costs.
- Environmental Robustness: Designed for reliable operation in a wide temperature and humidity range, suitable for commercial and light industrial environments.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Number of Ports | 4 PoE-capable RJ45 ports |
| Data Rate | 10/100/1000 Mbps (Gigabit Ethernet) |
| Input Power | 48VDC external power supply |
| PoE Output Power | 15.4W per port (IEEE 802.3af standard); up to 30W per port for GPI4001C |
| Total Power Budget | 65W (with dynamic power management) |
| PoE Mode | Power over Data Lines (for 10/100/1000 Mbps operation) |
| Connectors | Data In: RJ45; Data Out: RJ45 |
| LED Indicators | PWR (Power On), POE1–POE4 (status indicators for each port: normal, overload, short-circuit, insufficient power) |
| Dimensions | 195 mm (L) × 131 mm (W) × 45 mm (H) |
| Weight | Approx. 0.8–1.0 kg (typical, depending on configuration) |
| Operating Temperature | -15°C to +50°C |
| Storage Temperature | -15°C to +80°C |
| Operating Humidity | 10%–90% RH (non-condensing) |
| Storage Humidity | 5%–95% RH |
| Material | Metal enclosure for durability and heat dissipation |
| Mounting | Desktop or wall-mountable |
| Variants | GPI4001A (IEEE 802.3af only), GPI4001C (High Power + Cisco Legacy Detection) |

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### 4. Functionality

The GPI4001 functions as a mid-span PoE injector, enabling network devices that lack native PoE support to receive both data and power through a single Ethernet cable. It connects between a non-PoE Ethernet switch and PoE-capable devices such as IP cameras, VoIP phones, wireless access points, or network sensors.

Operational Principle:
1. Data Input: The injector receives Ethernet data from a standard switch or router via the “Data In” RJ45 port.
2. Power Injection: The GPI4001 combines the data signal with 48VDC power and outputs the combined signal through the “Data Out” RJ45 port.
3. PoE Delivery: The connected powered device (PD) receives both data and power over the same cable, eliminating the need for separate power adapters.
4. Detection & Protection: The injector automatically detects PoE-compatible devices and applies power only when a valid PD signature is detected, ensuring safe operation.

Use Cases:
- Upgrading existing non-PoE switches to support PoE devices.
- Deploying IP surveillance cameras in remote or ceiling-mounted locations.
- Powering VoIP phones, wireless access points, or IoT sensors.
- Integrating with centralized DC power systems for backup or redundant power distribution.

Compatibility:
- Compatible with IEEE 802.3af-compliant PDs.
- Cisco legacy detection ensures interoperability with older Cisco PoE devices.
- Works with both Fast Ethernet and Gigabit Ethernet networks.

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### 5. Components & Accessories

Included Components:
- GPI4001 PoE Injector main unit
- User manual or quick installation guide
- Mounting brackets or rubber feet (depending on package)

Required External Components:
- 48VDC power supply (not included; must meet total power budget requirements)
- Standard RJ45 Ethernet cables (Cat5e or higher recommended)

Optional Accessories:
- SP1301 PoE Splitter: Converts PoE input to 12.5VDC output for non-PoE devices (13W capacity, IEEE 802.3af Class 0).
- SP2401 PoE Splitter: Provides 24W output (IEEE 802.3at Class 4).
- PD1301 / PD2401 Modules: Compact PCB modules (2.54 × 7.4 cm) for integrating PoE functionality directly into device designs.
- FPI400 / FPI401 / GPI4000 Injectors: Related models for different power input or data rate requirements.

Connectors:
- Data In: RJ45 female connector (receives data from switch).
- Data Out: RJ45 female connector (outputs data + power to PD).
- DC Input Jack or Terminal Block: For 48VDC power input.

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### 6. Installation & Setup

Installation Requirements:
- External regulated 48VDC power supply with sufficient current capacity (minimum 1.5A recommended for full load).
- Standard Ethernet cabling (Cat5e or Cat6).
- Adequate ventilation and ambient temperature within specified operating range.

Mounting Options:
- Desktop placement for small network setups.
- Wall or rack mounting using optional brackets for structured cabling environments.

Setup Procedure:
1. Connect the 48VDC power source to the injector’s DC input terminal.
2. Connect the “Data In” RJ45 port to the existing Ethernet switch or router.
3. Connect the “Data Out” RJ45 port to the PoE-powered device.
4. Verify LED indicators:
- PWR LED should illuminate when power is applied.
- POE1–POE4 LEDs indicate per-port status (steady light = normal operation; flashing or off = fault or no PD detected).
5. Confirm that the powered device is operational and receiving both data and power.

Configuration:
The GPI4001 operates as a plug-and-play device with automatic PoE detection and power negotiation. No software configuration is required.

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### 7. Performance & Capabilities

Speed and Throughput:
Supports full-duplex Gigabit Ethernet (10/100/1000 Mbps) with minimal latency and no degradation of data throughput.

Power Capacity:
- 15.4W per port (IEEE 802.3af standard)
- Up to 30W per port for GPI4001C variant (high-power mode)
- Total power budget: 65W (shared dynamically across four ports)

Efficiency:
High conversion efficiency ensures minimal power loss and stable voltage delivery to connected devices.

Protection Features:
- Overload protection per port
- Short-circuit protection
- Over-temperature protection
- Automatic power cut-off for non-PoE devices

Limitations:
- Requires external 48VDC power source (not included).
- Total power output limited by available DC input capacity.
- Not designed for outdoor or industrial-grade environments without additional enclosure protection.

Reliability:
Engineered for continuous operation in network environments, with robust thermal management and fault detection circuitry.

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### 8. Standards & Compliance

Compliance Standards:
- IEEE 802.3af (PoE standard, 15.4W per port)
- IEEE 802.3at (supported in GPI4001C for 30W high-power output)
- IEEE 802.3 10BASE-T / 100BASE-TX / 1000BASE-T Ethernet standards
- Cisco legacy PoE detection compatibility

Safety & Regulatory Compliance:
- Designed to meet international electrical safety and EMC standards (specific certifications may vary by region).
- RoHS-compliant materials and lead-free manufacturing process.

Industry Standards:
- RJ45 connectors compliant with ISO/IEC 11801 and ANSI/TIA-568 standards.
- Power delivery conforms to standard PoE pin assignments for data and power lines.

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### 9. Additional Information

Warranty:
Typically covered by RAYON’s standard limited warranty (duration and terms may vary by region or distributor).

Technical Support:
RAYON provides technical assistance via email and phone for installation, troubleshooting, and product integration.

Maintenance:
- Periodic inspection of connectors and cables recommended.
- Ensure adequate ventilation and dust-free environment.
- No internal user-serviceable parts; servicing should be performed by qualified personnel.

Firmware & Updates:
The GPI4001 is a hardware-based injector with no firmware or software updates required.

Product Family Integration:
The GPI4001 complements RAYON’s broader PoE ecosystem, including:
- PoE Splitters (SP1301, SP2401): For powering non-PoE devices.
- PoE Modules (PD1301, PD2401): For integrating PoE into new device designs.
- PoE Switches (GPS8075, GPS8180): For scalable PoE network infrastructure with 75W or 180W total power budgets.

Environmental Considerations:
- Designed for indoor use in commercial or office environments.
- Operating humidity tolerance up to 90% ensures reliability in variable climates.

Customization Options:
- GPI4001A: Standard IEEE 802.3af detection only.
- GPI4001C: High-power output with Cisco legacy detection.
- Custom PoE power configurations available upon request for OEM or specialized applications.

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### Summary

The RAYON GPI4001 PoE Power Injector is a robust, four-port Gigabit mid-span injector engineered to deliver reliable Power over Ethernet functionality to existing network infrastructures. With IEEE 802.3af compliance, Cisco legacy support, and optional high-power output, it provides a flexible and scalable solution for powering IP-based devices such as cameras, phones, and access points. Its compact form factor, dynamic power management, and comprehensive protection features make it an ideal choice for network integrators and system installers seeking a cost-effective method to deploy PoE without replacing existing switches.

The GPI4001 exemplifies RAYON’s commitment to providing high-quality, standards-compliant network power solutions that enhance connectivity, simplify installation, and ensure long-term operational reliability.