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PRODUCT SUMMARY: SFP1G‑LX20
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1. Product Overview
The SFP1G-LX20 is a Gigabit Ethernet optical transceiver designed for 1Gbps network applications over single‑mode fiber.
Main identifiers:
• Product name: SFP1G-LX20
• Article: SFP1G-LX20
• Series: Gigabit Ethernet SFP Optical Transceivers
• Manufacturer: ORing Industrial Networking
• Description: 1Gbps SFP optical transceiver, single‑mode, 20 km reach, 1310 nm, commercial temperature range 0 to 70°C

This module is part of ORing’s ruggedized and industrial-grade accessory ecosystem and supports a broad range of professional networking systems including switches, routers, media converters, and industrial Ethernet devices.

2. Key Features
• Data rate support: 1Gbps (Gigabit Ethernet)
• Transmission medium: Single‑mode fiber (SMF)
• Typical transmission distance: 20 km
• Wavelength: 1310 nm for both transmission and receiving
• Operating temperature (commercial model): 0 to 70°C
• Industrial version available (SFP1G-LX20-I) for extended temperature: -40 to 85°C
• Hot‑swappable SFP (Small Form-factor Pluggable) module
• Compatible with standard LC duplex fiber connectors
• Consistent high‑performance optical characteristics designed for long-reach point‑to‑point fiber networks
• Fully compliant with SFP MSA (Multi-Source Agreement) form factor and Gigabit Ethernet standards
• Supports digital diagnostics (depending on host equipment)
• Stable output power and high sensitivity for long-distance connectivity
• Designed for robust and reliable operation in enterprise and industrial network environments

3. Technical Specifications
Transmission and Optical Parameters:
• Fiber mode: Single‑mode (9/125 μm fiber)
• Wavelength: 1310 nm
• Typical reach: 20 km
• Maximum optical output power: -2 dBm
• Minimum optical output power: -8 dBm
• Optical receiver sensitivity: -23 dBm
• Receiver saturation (max input power): -3 dBm
• Link budget: Approximately 15 dB for the 20 km model
• Operating temperature: 0 to 70°C (commercial), -40 to 85°C (industrial version SFP1G-LX20-I)

Mechanical & Housing:
• Standard SFP compact pluggable form factor
• Typical SFP dimensions: approximately 56.5 mm (L) x 13.7 mm (W) x 8.5 mm (H) (standard SFP mechanical specifications; manufacturer typically adheres to MSA physical footprints)
• Weight: Generally lightweight (exact weight not listed, usually around 18–25 g for similar modules)
• Connector type: LC duplex optical connector

Materials and Construction:
• Outer housing: Metal SFP cage-compatible design for EMI protection
• Optical interface: Precision LC receptacles for single‑mode fiber
• PCB and internal optoelectronics built for long-term durability and stability

4. Functionality
How it works:
• Converts electrical Ethernet signals into optical signals for transmission over single‑mode fiber.
• Performs the reverse conversion of incoming optical signals back to electrical form for processing by the host network device.
• Allows network equipment to establish 1Gbps fiber links up to 20 km away.

Use cases:
• Industrial Ethernet backbones
• Enterprise networks and campus fiber infrastructure
• Long-distance links between buildings or network nodes
• Deployment in switches, industrial controllers, media converters, routers, managed switches, Ring/ERPS networks
• Applications requiring EMI immunity and high bandwidth over long distances

Compatibility:
• Compatible with host devices that support standard SFP slots
• Works with LC single‑mode fiber patch cables (9/125 µm)
• Typically interoperable with other MSA-compliant 1310 nm LX-class Gigabit SFP modules
• Required pairing: Standard dual-fiber single-mode link (not a BIDI module; must use paired TX/RX fibers)

5. Components and Accessories
Included with transceiver:
• SFP1G-LX20 module (no accessories are included by default; patch cords and other items sold separately)

Compatible accessories from ORing’s product ecosystem:
Fiber Patch Cords (for LC connections):
• FPC-LCLC-SS3M: LC/LC, single‑mode, 9/125 µm, 3 m
• FPC-SCLC-SS3M: SC/LC, single‑mode, 9/125 µm, 3 m
• FPC-SCST-SS3M: SC/ST, single‑mode, 9/125 µm, 3 m
Other optional accessories:
• Fiber patch adapters such as FCA-SC-SS (SC/SC, single‑mode)
• DIN-rail power supplies (for related networking equipment)
• RF cables and antennas (not directly used with the SFP, but part of the same catalog ecosystem)

6. Installation and Setup
Installation requirements:
• Compatible SFP port on the host device
• Single‑mode LC duplex fiber cable (9/125 µm)
• Ensure optical connectors are clean and free from contamination
• For short-distance installations, apply appropriate optical attenuators if optical power is above receiver saturation levels

Setup process:
• Insert SFP module into host SFP slot (hot-swappable)
• Connect LC fiber cable (TX to RX, RX to TX)
• Confirm module recognition through the host device’s system diagnostics
• Verify link status and power levels

Mounting:
• SFP connects directly into the host equipment; no additional mounting hardware required

7. Performance and Capabilities
Speed and Capacity:
• Supports full 1Gbps transmission over fiber
• High receiver sensitivity (-23 dBm) enables longer reach connections
• Excellent link budget (15 dB), supporting stable 20 km operation on quality fiber

Efficiency:
• Low power consumption typical of SFP modules
• Efficient long-distance optical transmission at 1310 nm
• High reliability components for rugged or industrial environments

Limitations:
• Designed for single-mode fiber only
• Not suitable for multimode fiber (use SFP1G-SX or SFP1G-MLX instead)
• Not a BiDi module (use LC duplex fiber only)
• Maximum supported distance is 20 km; for longer ranges use SFP1G-LHX30 (30 km), SFP1G-LHX40 (40 km), SFP1G-XD50 (50 km), SFP1G-ZX70 (70 km), or SFP1G-ZX80 (80 km)

8. Standards and Compliance
• Compliant with SFP MSA (Multi-Source Agreement)
• Gigabit Ethernet IEEE 802.3z 1000BASE-LX standard
• ROHS compliance expected (typical for ORing industrial products; not explicitly listed)
• Fully compatible with industry‑standard LC fiber connectors
• Designed for rugged and industrial network environments

9. Additional Information
Warranty and Support:
• Typical ORing product warranty (manufacturer standard; specific duration not listed in the content)
• Technical support provided through ORing Networking channels
• Extended industrial-grade model available (SFP1G-LX20-I) for harsh temperature conditions

Maintenance:
• Keep optical connectors clean using fiber cleaning tools
• Ensure correct fiber polarity and avoid bending fiber cables beyond their bend radius
• Periodically check optical power levels using test equipment if deployed in industrial environments

Updates:
• The product is part of the ORing accessory ecosystem and is compatible with future ORing network devices that maintain SFP MSA support

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Expanded Technical Interpretation and Context
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The SFP1G-LX20 occupies a middle position in ORing’s Gigabit Ethernet SFP lineup. Compared with other models:
• Short-range multimode models (SFP1G-SX and SFP1G-MLX) cover 550 m to 2 km.
• Mid-range single-mode models (SFP1G-LX10 and SFP1G-LX20) handle 10–20 km links.
• Long-range single-mode models (SFP1G-LHX30/LHX40, SFP1G-XD50, SFP1G-ZX70, SFP1G-ZX80) support distances from 30 km up to 80 km using either 1310 nm or 1550 nm wavelengths.

The SFP1G-LX20 is specifically optimized for environments where 20 km link distance is required but cost, power consumption, and performance efficiency must be balanced. Its optical power output of -2 to -8 dBm aligns with typical 20 km single‑mode fiber (SMF) optical budgets while maintaining receiver sensitivity up to -23 dBm to ensure robust performance even on aged or slightly degraded fiber lines.

Industrial applications benefit from availability of the -I model offering a thermal range of -40 to 85°C, making the SFP1G-LX20 suitable for outdoor cabinets, roadside cabinets, manufacturing floors, automation systems, railway and transportation networks, and energy/utility network backbones.

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Final Summary
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The SFP1G-LX20 is a high‑performance 1Gbps single‑mode SFP transceiver designed for up to 20 km optical transmission at 1310 nm. With stable optical characteristics, strong sensitivity, and compliance with SFP MSA and Gigabit Ethernet standards, it is a reliable choice for enterprise and industrial fiber networks. Its compatibility with LC single‑mode fiber connectors, its rugged design, and the availability of an industrial-temperature variant allow it to perform in diverse environments ranging from standard networking deployments to harsh industrial installations.