Comprehensive Product Summary – ORing SFP1GB5-LX20 Gigabit Ethernet BIDI SFP Optical Transceiver

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### 1. Product Overview

Product Name: SFP1GB5-LX20
Model Number: SFP1GB5-LX20
Series: Gigabit Ethernet BIDI SFP Optical Transceiver Series
Article Number: SFP1GB5-LX20
Manufacturer: ORing Industrial Networking Corp.
Product Type: 1 Gbps Single-Mode Bi-Directional (BIDI) Small Form-Factor Pluggable (SFP) Optical Transceiver
Transmission Type: TX: 1550 nm / RX: 1310 nm
Transmission Distance: Up to 20 km over single-mode fiber (SMF)
Operating Temperature Range: 0°C to 70°C (standard model); -40°C to 85°C (industrial-grade “-I” variant)
Connector Type: LC Simplex (single fiber interface)
Compliance: IEEE 802.3z 1000BASE-LX Gigabit Ethernet standard

The ORing SFP1GB5-LX20 is a high-performance, hot-pluggable optical transceiver designed for Gigabit Ethernet applications requiring long-distance single-mode fiber connectivity. It is part of ORing’s ruggedized SFP product line, engineered for reliable operation in industrial and enterprise networking environments.

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### 2. Key Features

- Gigabit Ethernet Performance: Supports data rates up to 1.25 Gbps, compliant with IEEE 802.3z 1000BASE-LX standards.
- Bi-Directional (BIDI) Transmission: Utilizes a single optical fiber for both transmit and receive functions, reducing fiber infrastructure costs.
- Optical Wavelength Pair: Transmit wavelength at 1550 nm and receive wavelength at 1310 nm, optimized for 20 km single-mode fiber links.
- Extended Reach: Provides stable optical transmission up to 20 kilometers over 9/125 μm single-mode fiber.
- Compact SFP Form Factor: Standardized SFP footprint ensures compatibility with a wide range of network switches, routers, and media converters.
- Hot-Pluggable Design: Enables easy installation and replacement without network downtime.
- Industrial-Grade Option: The SFP1GB5-LX20-I variant supports extended temperature operation (-40°C to +85°C) for harsh environments.
- Low Power Consumption: Designed for energy-efficient operation in high-density networking equipment.
- Digital Diagnostics Monitoring (optional): Supports DDM/DOM functions for real-time monitoring of optical parameters (depending on host device support).
- High Reliability: Engineered for long-term stability and consistent optical performance in mission-critical applications.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|------------------|
| Data Rate | 1.25 Gbps nominal |
| Fiber Type | Single-mode fiber (SMF), 9/125 μm core/cladding |
| Transmission Distance | Up to 20 km |
| Connector Type | LC Simplex |
| Wavelength (TX/RX) | TX: 1550 nm / RX: 1310 nm |
| Optical Output Power (Max TX) | -2 dBm |
| Optical Output Power (Min TX) | -8 dBm |
| Receiver Sensitivity (Min Input Power) | -23 dBm |
| Receiver Saturation (Max Input Power) | -1 dBm |
| Link Budget | 20 dB typical |
| Operating Temperature (Standard) | 0°C to +70°C |
| Operating Temperature (Industrial) | -40°C to +85°C |
| Storage Temperature | -40°C to +85°C |
| Power Supply Voltage | 3.3 V DC nominal |
| Power Consumption | <1 W typical |
| Dimensions | Standard SFP form factor (approx. 56.5 mm × 13.7 mm × 8.5 mm) |
| Weight | Approx. 20 g |
| Case Material | Metal enclosure for EMI shielding |
| Cooling | Passive (no fan required) |
| Compliance | RoHS, CE, FCC, IEEE 802.3z |

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### 4. Functionality

The SFP1GB5-LX20 operates as a bidirectional optical transceiver, enabling full-duplex Gigabit Ethernet communication over a single strand of single-mode fiber. It integrates a 1550 nm distributed feedback (DFB) laser transmitter and a 1310 nm PIN photodiode receiver within a compact SFP housing.

Working Principle:
- The transceiver transmits optical signals at 1550 nm while simultaneously receiving signals at 1310 nm through the same fiber strand.
- A built-in wavelength division multiplexer (WDM) separates the transmit and receive channels internally.
- The module interfaces electrically with the host device via a standard 20-pin SFP edge connector, supporting serial communication and diagnostics.

Typical Use Cases:
- Long-distance Gigabit Ethernet links between switches, routers, or media converters.
- Industrial automation networks requiring robust fiber connectivity.
- Metropolitan area networks (MANs) and campus backbones.
- CCTV and IP surveillance systems with centralized monitoring.
- Transportation and utility communication systems.

Compatibility:
- Compatible with all ORing industrial Ethernet switches and media converters supporting SFP slots.
- Interoperable with other vendors’ SFP modules adhering to the MSA (Multi-Source Agreement) standard.
- Must be paired with a complementary BIDI SFP module using the opposite wavelength configuration (e.g., SFP1GB3-LX20, TX:1310 nm / RX:1550 nm).

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### 5. Components & Accessories

Included Components:
- SFP1GB5-LX20 transceiver module (individually packaged)
- Protective dust cap for LC connector
- Product datasheet and installation guide (digital or printed)

Optional Accessories:
- Fiber Patch Cords:
- *FPC-SCLC-SS3M* – SC/LC single-mode patch cord, 9/125 μm, 3 m length
- *FPC-LCLC-SS3M* – LC/LC single-mode patch cord, 9/125 μm, 3 m length
- Fiber Patch Adapters:
- *FCA-SC-SS* – SC/SC single-mode adapter, 9/125 μm
- DIN-Rail Power Supplies: For use with ORing switches hosting SFP slots (e.g., DR-75-24, DR-120-24).
- Power Adapters: 12VDC or 48VDC adapters (e.g., PAA-121000, PAX-482500) for compatible devices.
- M-Series Ethernet Cables: For ruggedized network connections (e.g., M12C-4MRJ-300D).

These accessories ensure optimal connectivity, power stability, and environmental protection for industrial deployments.

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### 6. Installation & Setup

Installation Requirements:
- Host device with an available SFP slot compliant with the SFP MSA standard.
- Single-mode fiber optic cable terminated with LC connectors.
- Matching BIDI SFP module on the remote end (TX/RX wavelengths reversed).

Installation Steps:
1. Power off the host device or ensure hot-plug capability.
2. Remove the protective cap from the SFP module and the LC connector.
3. Insert the SFP1GB5-LX20 into the SFP slot until it clicks securely.
4. Connect the single-mode fiber cable to the LC port.
5. Verify link status via the host device’s LED indicators.
6. If the link is unstable or optical power is too high for short distances, use an optical attenuator to prevent receiver saturation.

Configuration:
- The module is plug-and-play; no software configuration is required.
- For devices supporting DDM/DOM, optical parameters such as temperature, voltage, TX/RX power, and bias current can be monitored via SNMP or web interface.

Mounting Options:
- Direct insertion into SFP cages on switches, routers, or media converters.
- Compatible with ORing’s DIN-rail-mounted industrial switches for rugged installations.

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### 7. Performance & Capabilities

Transmission Performance:
- Provides stable 1 Gbps full-duplex data transmission over single-mode fiber up to 20 km.
- Optical link budget of 20 dB ensures reliable operation even with moderate fiber attenuation or connector losses.

Optical Characteristics:
- TX optical output power: -8 dBm to -2 dBm
- RX sensitivity: -23 dBm minimum
- RX saturation: -1 dBm maximum
- Wavelength stability ensures minimal chromatic dispersion over long distances.

Electrical Interface:
- Compliant with SFP MSA electrical specifications.
- 3.3V power supply with low power draw (<1 W typical).
- Differential LVPECL/LVDS signal interface for high-speed data transmission.

Environmental Performance:
- Standard model: 0°C to +70°C for commercial environments.
- Industrial model (-I): -40°C to +85°C for outdoor or factory-floor applications.
- Metal housing provides EMI shielding and mechanical durability.

Limitations:
- Designed for single-mode fiber only; not compatible with multimode fiber.
- Requires pairing with complementary wavelength BIDI module (e.g., SFP1GB3-LX20).
- For short-distance connections (<1 km), optical attenuators may be necessary to prevent receiver overload.

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### 8. Standards & Compliance

Industry Standards:
- IEEE 802.3z 1000BASE-LX Gigabit Ethernet
- SFP Multi-Source Agreement (MSA)
- ITU-T G.957 and G.958 optical interface standards
- RoHS Directive 2011/65/EU compliant (lead-free construction)
- CE and FCC Class A electromagnetic compatibility standards

Safety & Environmental Compliance:
- Laser safety: Class 1 laser product per IEC 60825-1 and FDA 21 CFR 1040.10
- Operating altitude: up to 2000 m
- Humidity tolerance: 5% to 95% non-condensing

Quality Assurance:
- Each module undergoes optical power, wavelength, and BER (bit error rate) testing.
- Factory-calibrated for consistent optical performance and interoperability.

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### 9. Additional Information

Warranty:
- Standard 3-year limited warranty covering manufacturing defects and performance failures under normal operating conditions.
- Extended warranty options available for industrial deployments.

Technical Support:
- ORing provides comprehensive technical documentation, datasheets, and online support resources.
- Firmware and compatibility updates are available through the ORing support portal.
- Global service network ensures prompt assistance for configuration and troubleshooting.

Maintenance:
- Periodic inspection of fiber connectors recommended to prevent contamination or signal loss.
- Clean LC connectors using approved fiber cleaning tools.
- Avoid excessive bending or stress on fiber cables to maintain optimal signal integrity.

Product Lifecycle & Updates:
- The SFP1GB5-LX20 is part of ORing’s long-term supported product line, ensuring availability for industrial and infrastructure projects.
- Backward compatible with earlier ORing SFP modules and forward-compatible with future Gigabit SFP host devices.

Ordering Information:
- SFP1GB5-LX20: 1 Gbps SFP optical transceiver, single-mode BIDI / 20 km, TX1550 nm, RX1310 nm, 0~70°C
- SFP1GB5-LX20-I: Industrial-grade version, -40~85°C operating temperature

Complementary Pairing Module:
- SFP1GB3-LX20: 1 Gbps SFP optical transceiver, single-mode BIDI / 20 km, TX1310 nm, RX1550 nm

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### Summary

The ORing SFP1GB5-LX20 is a robust, high-performance Gigabit Ethernet BIDI SFP transceiver optimized for long-distance single-mode fiber communication. Its 1550 nm transmit and 1310 nm receive wavelengths enable efficient bidirectional data transmission over a single fiber strand, reducing cabling costs and simplifying network design. With a 20 km reach, low power consumption, and compliance with international standards, it is ideal for industrial automation, transportation, and enterprise backbone networks.

The module’s compact, hot-pluggable design ensures seamless integration into ORing’s industrial switches and other MSA-compliant networking equipment. The availability of an industrial-grade variant extends its usability to harsh environments, maintaining reliable performance under extreme temperatures and conditions.

Backed by ORing’s commitment to rugged excellence, the SFP1GB5-LX20 delivers dependable optical connectivity for mission-critical applications where uptime, efficiency, and long-term reliability are paramount.