SFP-1GE-LH Juniper 1000base-LH Gigabit Ethernet SFP Module, 1 x 1000base-LH Transceiver

The Juniper Networks SFP-1GE-LH Gigabit Ethernet SFP Module is equipped with versatile interfaces that cater to the needs of modern networking environments. One of the standout features of this module is its support for 1 x 1000base-LH, which provides users with a reliable and high-speed connection for their networking requirements.

General Information

• Manufacturer: Juniper Networks
• Part Number: SFP-1GE-LH
• Product Type: Optical Transceiver Module

Technical Information

• Ethernet Rate: 10 Gigabit Ethernet
• Lane Signaling: 1000 Mbps
• Transceiver Format: SFP+
• Connector Interface: Duplex LC
• Wavelength Range: 1550 nm
• Output Power (Min): 0 dBm
• Output Power (Max): 5 dBm
• Receiver Sensitivity (Min): –24 dBm
• Receiver Input (Max): 0 dBm

Fiber & Cabling

• Cable Type: Single-mode Fiber (SMF)
• Core/Cladding: 9/125 µm
• Transmission Reach: Up to 70 km

Power & Efficiency

• Maximum Consumption: 1 W

Environmental Conditions

Operating Range

• Temperature: –40°C to 85°C

Storage Range

• Temperature: –40°C to 85°C

Key Advantages

• Reliable long-haul transmission over single-mode fiber
• Enhanced monitoring for proactive network management
• Energy-efficient design with low power usage
• Wide temperature tolerance for diverse environments

Juniper Networks SFP-1GE-LH 1GBPS SFP Transceiver Module

The Juniper Networks SFP-1GE-LH 1Gbps 1000Base-LH Single-Mode Fiber 80km 1550nm Duplex LC Connector SFP Transceiver Module is a high-performance optical networking component engineered to support Gigabit Ethernet connectivity across extended distances. Designed for enterprise networks, service provider infrastructures, metropolitan area networks, campus environments, and mission-critical communication systems, this Small Form-Factor Pluggable transceiver delivers dependable long-haul optical transmission while maintaining compatibility with a wide range of networking equipment.

Operating at a data rate of 1Gbps, the module utilizes 1000Base-LH optical standards and transmits data through single-mode fiber infrastructure. The 1550nm wavelength provides excellent attenuation characteristics over long-distance fiber links, enabling reliable communication up to 80 kilometers. This capability makes the transceiver suitable for connecting geographically separated facilities, remote offices, network aggregation points, data centers, and telecommunications equipment without compromising signal integrity.

The compact SFP form factor allows flexible deployment in switches, routers, aggregation devices, and optical networking platforms. Network administrators can easily install, replace, or upgrade modules without disrupting network operations, making the SFP-1GE-LH a practical solution for scalable and adaptable network architectures.

1GBPS Gigabit Ethernet Performance Capabilities

Reliable Data Transmission at Gigabit Speeds

The SFP-1GE-LH transceiver is optimized for Gigabit Ethernet applications requiring stable and efficient data transport. Supporting a data rate of 1.25Gbps signaling for Gigabit Ethernet protocols, the module ensures smooth transmission of voice, video, cloud traffic, storage communications, and business-critical applications.

Gigabit connectivity remains a widely deployed standard in enterprise and carrier networks due to its balance between bandwidth efficiency and infrastructure costs. The transceiver delivers dependable throughput while maintaining low latency and minimal packet loss, enabling network operators to support modern applications that depend on consistent communication performance.

Support for Enterprise Networking Environments

Enterprise infrastructures often require long-distance interconnections between buildings, campuses, branch offices, and centralized data centers. The Juniper Networks SFP-1GE-LH module addresses these requirements through stable optical performance and compatibility with standard Gigabit Ethernet implementations. Its architecture supports sustained network availability and efficient traffic handling across diverse deployment scenarios.

Optimized Network Uplink Connectivity

Network uplinks represent critical pathways between access, distribution, and core network layers. The SFP-1GE-LH module provides a reliable optical interface for uplink deployment, ensuring that network segments communicate effectively over extended distances. Its optical design minimizes transmission errors while supporting uninterrupted data exchange.

1000Base-LH Optical Standard Technology

Long-Haul Ethernet Connectivity

The 1000Base-LH standard was developed to support long-distance Gigabit Ethernet transmission over single-mode fiber. By utilizing laser-based optical technology and advanced signal processing mechanisms, the SFP-1GE-LH module can transport data far beyond the limitations of traditional copper Ethernet media.

Long-haul optical networking is essential in environments where physical separation between network endpoints exceeds the practical range of multimode fiber or copper cabling. Through the use of single-mode fiber and a 1550nm optical wavelength, the transceiver enables dependable communications across substantial geographic distances.

Enhanced Signal Integrity

Optical transmission quality directly affects network performance. The transceiver incorporates precise optical components that maintain signal integrity throughout long-distance transmission paths. This design reduces the effects of attenuation, reflection, and dispersion, contributing to stable and predictable network operation.

Precision Laser Technology

The module employs high-quality laser transmission technology designed for consistent optical output. Accurate wavelength control and optical power management help maintain communication quality while supporting extended reach requirements. This precision contributes to reliable data transport even across demanding network environments.

Single-Mode Fiber Transmission Advantages

Support for Extended Distances

Single-mode fiber serves as the preferred medium for long-distance optical communication due to its ability to transmit light through a narrow core with minimal dispersion. The SFP-1GE-LH transceiver is specifically engineered for operation over single-mode fiber infrastructure, allowing organizations to maximize network reach without sacrificing performance.

By utilizing single-mode fiber technology, network planners can establish links between remote facilities, central offices, and regional network hubs. This capability is particularly valuable for service providers, educational institutions, healthcare networks, government agencies, and large enterprises operating across broad geographic areas.

Reduced Optical Loss Characteristics

Single-mode fiber exhibits lower attenuation compared to many alternative transmission media. The transceiver leverages these characteristics to maintain strong optical signals across long spans of fiber, supporting stable communication and minimizing the need for intermediate signal regeneration equipment.

Future-Proof Infrastructure Compatibility

Many organizations invest in single-mode fiber because it supports evolving bandwidth requirements. The SFP-1GE-LH module integrates seamlessly into these infrastructures, providing reliable Gigabit Ethernet services while preserving upgrade flexibility for future optical networking technologies.

80 Kilometer Long-Reach Connectivity

Extended Metropolitan and Regional Networking

One of the most significant features of the Juniper Networks SFP-1GE-LH module is its ability to support transmission distances up to 80 kilometers. This capability enables organizations to create long-distance network connections without relying on leased communication circuits or additional active network equipment.

Metropolitan area networks frequently require optical links between multiple facilities located throughout a city or region. The 80km reach capability supports efficient deployment of these networks while maintaining Gigabit Ethernet performance standards.

Remote Facility Interconnection

Organizations operating remote branch offices, distribution centers, manufacturing facilities, or communication sites often require dependable long-range connectivity. The SFP-1GE-LH module provides an effective solution for these environments by delivering stable optical communication over significant distances.

Carrier and Service Provider Applications

Telecommunications operators and internet service providers can leverage the transceiver for aggregation networks, access infrastructure, and regional connectivity projects. The long-reach optical design helps extend service coverage while supporting consistent network performance.

High Availability Long-Distance Links

Mission-critical communication environments require continuous operation and reliable connectivity. The transceiver’s optical architecture supports high availability network designs by providing stable long-distance links capable of supporting essential services and applications.

1550nm Optical Wavelength Performance

Advantages of 1550nm Transmission

The SFP-1GE-LH transceiver operates at a 1550nm wavelength, which is widely recognized as one of the most effective wavelengths for long-distance optical communications. This wavelength experiences lower attenuation within single-mode fiber, enabling signals to travel farther while maintaining integrity.

Network engineers often select 1550nm optical solutions for long-haul deployments because of their ability to maximize transmission distances and reduce signal degradation. The transceiver benefits from these characteristics, providing dependable communication across extensive fiber routes.

Improved Optical Efficiency

Efficient wavelength utilization contributes to lower optical losses and improved transmission quality. The 1550nm operating wavelength helps ensure that optical power levels remain within acceptable ranges throughout the transmission path, supporting consistent performance over long distances.

Compatibility with Existing Optical Infrastructure

Many carrier-grade and enterprise fiber infrastructures are designed around 1550nm optical technologies. The transceiver integrates smoothly into these environments, allowing organizations to leverage existing fiber investments while achieving dependable Gigabit Ethernet connectivity.

Duplex LC Connector Architecture

Industry-Standard Connectivity

The module features a duplex LC optical connector interface that has become a standard across enterprise and telecommunications networks. LC connectors provide secure, reliable optical connections while occupying minimal physical space within networking equipment.

The duplex configuration supports separate transmit and receive optical paths, enabling full-duplex communication and maximizing network efficiency. This arrangement facilitates simultaneous bidirectional data transmission, improving overall network performance.

High-Density Deployment Benefits

Modern networking environments often require large numbers of optical connections within limited rack space. LC connectors support high-density deployments by offering compact dimensions without compromising connection reliability or optical performance.

Secure Optical Coupling

The LC connector design incorporates precision alignment mechanisms that help maintain accurate optical coupling between fiber cables and transceiver interfaces. This contributes to reduced insertion loss and dependable communication quality.

SFP Form Factor Advantages

Hot-Swappable Design

The Small Form-Factor Pluggable architecture enables hot-swappable installation and replacement. Network administrators can insert or remove modules without powering down networking equipment, minimizing operational disruptions and simplifying maintenance procedures.

This capability is particularly beneficial in environments where network uptime is critical. Maintenance activities can be performed quickly while preserving overall system availability.

Modular Network Expansion

The SFP form factor supports modular network design by allowing organizations to select transceivers that match specific connectivity requirements. The SFP-1GE-LH module can be deployed wherever long-distance single-mode fiber connectivity is needed, providing flexibility across a variety of network architectures.

Efficient Hardware Utilization

Networking platforms equipped with SFP slots can accommodate multiple transceiver types, enabling organizations to optimize hardware investments. The SFP-1GE-LH module contributes to this flexibility by supporting extended-distance optical connectivity within standard SFP interfaces.

Compatibility with Juniper Networking Platforms

Designed for Juniper Infrastructure

The transceiver is engineered to operate with compatible Juniper networking equipment, ensuring dependable integration and optimal performance. Compatibility validation helps simplify deployment processes and reduces the risk of interoperability issues.

Network administrators can deploy the module within supported switches, routers, and networking systems while maintaining operational consistency and predictable behavior across the infrastructure.

Enterprise Deployment Flexibility

The module can be utilized across diverse network segments, including access, aggregation, distribution, and core layers. This versatility supports standardized deployment strategies throughout enterprise and service provider infrastructures.

Data Center and Network Backbone Applications

Inter-Data Center Connectivity

Data centers frequently require reliable optical links between geographically separated facilities. The SFP-1GE-LH module provides a practical solution for interconnecting data center resources while supporting stable Gigabit Ethernet communication across extended distances.

Organizations can utilize these connections for replication traffic, backup operations, disaster recovery planning, application synchronization, and centralized resource access.

Backbone Network Infrastructure

Network backbones serve as the primary transport layer for organizational communications. The transceiver supports backbone deployments by delivering long-distance optical connectivity with dependable performance characteristics. Its 80km reach capability makes it suitable for connecting major network aggregation points and communication hubs.

Scalable Traffic Aggregation

Traffic aggregation networks often combine communications from multiple locations before forwarding data to centralized facilities. The transceiver facilitates efficient aggregation by providing stable optical pathways capable of supporting continuous data transport.