Comprehensive Product Summary – SFP1G-SX-DDM

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### 1. Product Overview

Product Name: SFP1G-SX-DDM
Model Number: SFP1G-SX-DDM
Series: Gigabit Ethernet SFP Optical Transceiver Series
Article Number: SFP1G-SX-DDM
Manufacturer: ORing Industrial Networking Corp.
Product Type: 1 Gbps Small Form-factor Pluggable (SFP) Optical Transceiver Module
Connector Type: LC Duplex
Transmission Medium: Multi-mode Fiber (MMF)
Transmission Distance: Up to 550 meters
Operating Wavelength: 850 nm
Operating Temperature Range: 0°C to +70°C (standard model)
Digital Diagnostic Monitoring (DDM): Supported

The ORing SFP1G-SX-DDM is a high-performance, hot-pluggable optical transceiver designed for Gigabit Ethernet and Fiber Channel applications. It provides a cost-effective and reliable solution for short-range data transmission over multi-mode fiber networks. The module integrates advanced digital diagnostic monitoring (DDM) capabilities, enabling real-time monitoring of critical parameters such as optical output power, input power, temperature, and supply voltage.

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### 2. Key Features

- Gigabit Ethernet Performance: Supports data rates up to 1.25 Gbps, compliant with IEEE 802.3z Gigabit Ethernet standards.
- Multi-mode Fiber Operation: Optimized for 50/125 μm and 62.5/125 μm multi-mode optical fibers.
- Transmission Distance: Provides reliable optical communication up to 550 meters over 50/125 μm MMF.
- Wavelength: Operates at 850 nm, ideal for short-range fiber links in LAN and data center environments.
- Digital Diagnostic Monitoring (DDM): Integrated DDM functionality allows users to monitor real-time transceiver performance parameters, ensuring proactive maintenance and network reliability.
- Hot-Pluggable SFP Footprint: Fully compliant with SFP Multi-Source Agreement (MSA), allowing easy installation and replacement without system downtime.
- LC Duplex Optical Interface: Compact LC connector interface ensures secure, low-loss connections and compatibility with standard fiber patch cords.
- Wide Operating Temperature Range: Standard commercial temperature range from 0°C to +70°C, suitable for most enterprise and industrial networking environments.
- Low Power Consumption: Designed for energy-efficient operation, typically consuming less than 1W.
- Compatibility: Interoperable with a wide range of network switches, routers, and media converters supporting SFP slots.
- Rugged Design: Built for reliability in demanding industrial and commercial applications.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Form Factor | SFP (Small Form-factor Pluggable) |
| Data Rate | 1.25 Gbps nominal |
| Fiber Type | Multi-mode Fiber (MMF) |
| Connector Type | LC Duplex |
| Transmission Distance | Up to 550 m (50/125 μm MMF) |
| Wavelength | 850 nm |
| Optical Output Power (Max TX) | -4 dBm (62.5/125 μm fiber) |
| Optical Output Power (Min TX) | -9.5 dBm (62.5/125 μm fiber) |
| Receiver Sensitivity (Min Input Power) | -18 dBm |
| Receiver Saturation (Max Input Power) | 0 dBm |
| Link Budget | 8.5 dB |
| Operating Temperature | 0°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Power Supply Voltage | +3.3 V DC nominal |
| Power Consumption | <1 W typical |
| Dimensions | Approx. 56.5 mm (L) × 13.7 mm (W) × 8.5 mm (H) |
| Weight | Approx. 20 g |
| Compliance | SFP MSA, IEEE 802.3z, RoHS |

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### 4. Functionality

The SFP1G-SX-DDM functions as a bidirectional optical transceiver that converts electrical Gigabit Ethernet signals into optical signals for transmission over multi-mode fiber. It uses an 850 nm VCSEL (Vertical-Cavity Surface-Emitting Laser) transmitter and a PIN photodiode receiver to achieve high-speed data communication.

Operation Principle:
- The module receives electrical input signals from the host device (e.g., switch or router) through the SFP electrical interface.
- The transmitter section converts these signals into optical pulses at 850 nm and transmits them through the LC duplex connector into the multi-mode fiber.
- The receiver section detects incoming optical signals from the remote transceiver and converts them back into electrical signals for the host device.

Use Cases and Applications:
- Gigabit Ethernet switches and routers
- Media converters and industrial Ethernet devices
- Data center interconnects and server uplinks
- Campus and enterprise LAN backbones
- Short-distance fiber links within buildings or between racks

Compatibility:
- Fully compatible with standard SFP ports on ORing and third-party networking equipment.
- Supports auto-detection and digital diagnostics via DDM interface.

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### 5. Components & Accessories

Included Components:
- SFP1G-SX-DDM transceiver module
- Protective dust caps for LC connectors
- Product documentation and compliance label

Optional Accessories:
- Fiber Patch Cords:
- *FPC-LCLC-MM3M*: LC/LC multi-mode fiber patch cord, 62.5/125 μm, 3 m length
- *FPC-SCLC-MM3M*: SC/LC multi-mode fiber patch cord, 62.5/125 μm, 3 m length
- *FPC-SCST-MM3M*: SC/ST multi-mode fiber patch cord, 62.5/125 μm, 3 m length

- Fiber Patch Adapters:
- *FCA-SC-MM*: SC/SC multi-mode fiber adapter, 62.5/125 μm
- *FCA-SC-SS*: SC/SC single-mode fiber adapter, 9/125 μm

- Power Accessories (for host devices):
- *DR-4512*: 45W DIN-Rail 12VDC/3.5A power supply
- *DR-4524*: 45W DIN-Rail 24VDC/2A power supply
- *PAA-121000*: 12VDC/1000mA power adapter (US plug)
- *PAE-121000*: 12VDC/1000mA power adapter (EU plug)

These accessories ensure optimal connectivity and reliable power delivery for network devices utilizing the SFP1G-SX-DDM module.

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### 6. Installation & Setup

Installation Requirements:
- Compatible SFP slot on a switch, router, or media converter
- Multi-mode fiber optic cable with LC duplex connectors
- Clean fiber connectors to ensure optimal optical performance

Installation Steps:
1. Preparation: Ensure the host device is powered on and the SFP slot is clean.
2. Insertion: Align the SFP1G-SX-DDM module with the SFP port and gently insert it until it clicks into place.
3. Fiber Connection: Connect the LC duplex fiber cable to the transceiver’s optical interface, ensuring correct polarity (TX to RX).
4. Verification: Check the device’s management interface or LED indicators to confirm link establishment.
5. DDM Monitoring: Use the host system’s management software to monitor DDM parameters such as temperature, voltage, TX/RX power, and laser bias current.

Mounting Options:
- Standard SFP cage insertion (hot-pluggable)
- No additional mounting hardware required

Configuration:
- Plug-and-play operation; no manual configuration required
- DDM accessible via I²C interface for advanced diagnostics

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### 7. Performance & Capabilities

Speed and Throughput:
- Supports full-duplex Gigabit Ethernet operation at 1.25 Gbps line rate.
- Low latency and high reliability suitable for real-time data transmission.

Optical Performance:
- Typical link budget of 8.5 dB ensures stable communication over 550 m MMF.
- High receiver sensitivity (-18 dBm) allows robust performance even with minor optical losses.

Efficiency:
- Low power consumption (<1 W) minimizes heat generation and supports dense port configurations.
- DDM functionality enhances operational efficiency by enabling predictive maintenance.

Limitations:
- Designed for short-range multi-mode fiber links only; not suitable for long-distance single-mode applications.
- Operating temperature limited to 0~70°C (for industrial-grade environments, use SFP1G-SX-I).

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### 8. Standards & Compliance

Industry Standards:
- IEEE 802.3z Gigabit Ethernet (1000BASE-SX)
- SFP Multi-Source Agreement (MSA)
- SFF-8472 Digital Diagnostic Monitoring Interface
- RoHS Directive (Restriction of Hazardous Substances)
- CE and FCC Class A compliance

Safety and Environmental Compliance:
- Lead-free and halogen-free construction
- Meets international EMC and safety standards for optical transceivers
- Designed for long-term reliability in industrial and commercial environments

Interoperability:
- Compatible with major networking equipment vendors supporting standard SFP interfaces
- Supports auto-negotiation and link fault signaling

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### 9. Additional Information

Warranty:
- Standard manufacturer warranty (typically 3 years) covering defects in materials and workmanship.

Technical Support:
- ORing provides comprehensive technical support, including installation guidance, compatibility verification, and troubleshooting assistance.
- Online resources available at [www.oring-networking.com](http://www.oring-networking.com).

Maintenance:
- Periodic cleaning of LC connectors recommended to maintain optimal optical performance.
- DDM monitoring allows early detection of degradation in optical power or temperature anomalies.

Firmware and Updates:
- No firmware updates required for the transceiver itself; DDM parameters accessible via host device firmware.

Service Life:
- Typical operational lifetime exceeds 100,000 hours (MTBF > 1,000,000 hours under normal conditions).

Environmental Conditions:
- Operating Humidity: 10%–90% non-condensing
- Storage Humidity: 5%–95% non-condensing

Packaging:
- Individually packaged in anti-static protective casing with labeling for model, wavelength, and serial number.

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### Summary

The ORing SFP1G-SX-DDM is a robust, high-performance Gigabit Ethernet optical transceiver optimized for short-distance multi-mode fiber applications. Operating at 850 nm and supporting up to 550 meters of transmission distance, it delivers reliable, high-speed connectivity for enterprise, industrial, and data center networks. Its integrated Digital Diagnostic Monitoring (DDM) provides real-time insight into optical and electrical parameters, enhancing network reliability and maintainability.

With compliance to IEEE 802.3z, SFP MSA, and SFF-8472, the SFP1G-SX-DDM ensures interoperability across a wide range of network devices. Its hot-pluggable design, low power consumption, and rugged construction make it an ideal choice for mission-critical networking environments requiring dependable fiber connectivity.

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Manufacturer: ORing Industrial Networking Corp.
Website: [www.oring-networking.com](http://www.oring-networking.com)
Product Model: SFP1G-SX-DDM
Transmission Type: 1 Gbps Multi-mode Fiber, 850 nm, 550 m, LC Duplex, DDM-enabled
Operating Temperature: 0°C to +70°C
Compliance: IEEE 802.3z, SFP MSA, SFF-8472, RoHS

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End of Product Summary