Finisar 1000BASE-LX Transceiver

Finisar 1000BASE-LX Transceiver – High-Performance 1G Long-Range Optical Module

Overview of  Finisar 1000BASE-LX

The Finisar 1000BASE-LX Transceiver is a reliable and widely deployed optical module designed to deliver 1 Gigabit Ethernet connectivity over long-range single-mode fiber (SMF). This transceiver complies with IEEE 802.3z standards and supports transmission distances of up to 10 kilometers, making it ideal for metropolitan area networks (MANs), enterprise backbones, campus networks, and long-distance data links.

Renowned for its quality, durability, and consistent performance, the Finisar 1000BASE-LX is a go-to solution for IT professionals seeking cost-effective, long-distance networking without sacrificing reliability. It comes in a hot-swappable SFP form factor, ensuring seamless integration into a wide range of network switches, routers, and interface cards from multiple vendors.

Key Features of Finisar 1000BASE-LX

• Form Factor: SFP (Small Form-factor Pluggable)

• Data Rate: 1.25 Gbps

• Wavelength: 1310nm

• Fiber Type: Single-Mode Fiber (SMF)

• Transmission Distance: Up to 10km

• Connector Type: LC Duplex

• Hot-Swappable: Yes

• Digital Diagnostics Monitoring (DDM): Supported

• Compliance: IEEE 802.3z, SFF-8472

Reliable Long-Distance Ethernet Performance

The Finisar 1000BASE-LX Transceiver is engineered to support extended distances, making it ideal for campus environments or organizations with multiple buildings and data centers spread across a large area. Its use of 1310nm wavelength enables low-attenuation signal transmission, allowing it to reach up to 10km over standard single-mode fiber with excellent signal integrity.

In addition to SMF, the transceiver can also be used with multimode fiber (MMF) for shorter distances (up to 550m) when mode-conditioning patch cables are used, offering deployment flexibility based on your cabling environment.

Use Cases for Finisar 1000BASE-LX

The Finisar 1000BASE-LX transceiver is perfect for a wide range of applications, including:

• Long-distance data center interconnects (DCI)

• Campus and enterprise backbone fiber links

• Point-to-point connections between switches in distant locations

• Metropolitan area networks (MAN) and fiber rings

• Cross-building fiber connectivity in universities or hospitals

Because it supports both long-range SMF and short-range MMF with mode-conditioning, it’s extremely versatile and compatible with various legacy systems.

Advantages of Using Finisar 1000BASE-LX

✅ Cost-effective solution for extending Ethernet networks over fiber
✅ Highly compatible with major network equipment vendors
✅ Energy-efficient and low power consumption
✅ Enhanced diagnostics with Digital Diagnostics Monitoring (DDM)
✅ Robust and stable performance even in high-vibration or industrial environments
✅ Ideal for scaling enterprise networks without high infrastructure costs

With its hot-swappable capability, maintenance and upgrades can be done without network downtime—keeping your infrastructure flexible and reliable.

Built-In Digital Diagnostics Monitoring (DDM)

The Finisar 1000BASE-LX transceiver supports DDM functions according to SFF-8472 standards. These diagnostics allow network engineers to access real-time operating data such as:

• Module temperature

• Laser bias current

• Transmitted and received optical power

• Supply voltage

This is essential for predictive maintenance, fault detection, and troubleshooting, especially in larger and more complex network environments.

Compatibility Across Network Devices

The Finisar 1000BASE-LX Transceiver is MSA (Multi-Source Agreement) compliant and fully interoperable with networking hardware from leading brands including Cisco, HP, Dell, Juniper, Brocade, and more. This makes it an ideal choice for multi-vendor environments, reducing complexity and ensuring consistent performance across your infrastructure.

Whether you are using switches, routers, or firewalls with SFP ports, the Finisar 1000BASE-LX can plug in seamlessly and begin operating without additional configuration.

Environmental & Technical Resilience

Designed to operate in a variety of conditions, the Finisar 1000BASE-LX can handle industrial temperature ranges (optional industrial models), making it suitable for both indoor and ruggedized deployments. It features EMI shielding, RoHS compliance, and excellent long-term reliability.

If your deployment is in a mission-critical environment, like financial data centers or telecom sites, Finisar ensures performance and stability with every transceiver.