1990-4657 HPE Aruba 10G SFP+ LC LR 10KM SMF Transceiver

HPE 1990-4657 Aruba 10G SFP+ LC LR Transceiver Outline

The HPE Aruba 1990-4657 10G SFP+ LC LR Transceiver Module is a high-performance networking component designed for reliable long-distance optical data transmission. Engineered for enterprise-grade environments, this plug-in module delivers stable 10 Gigabit connectivity over single-mode fiber (SMF) infrastructure, making it ideal for data centers, campus networks, and high-speed backbone deployments.

General Product Information

• Brand: HPE
• Series: Aruba Networking
• Part Number: 1990-4657
• Product Type: Optical Transceiver Module

Technical Specifications Breakdown

Core Interface and Design

• Form Factor: Plug-in SFP+ module
• Connectivity Technology: Wired fiber optic
• Cabling Type: 10GBASE-LR standard

Data Transmission Standards

• Data Link Protocol: 10 Gigabit Ethernet (10 GbE)
• Data Rate: 10 Gbps high-speed transmission

Distance and Coverage Capability

• Maximum Reach: Up to 10 km over SMF
• Distance Equivalent: 6.2 miles reliable connectivity range

Key Applications and Use Cases

Enterprise Networking Environments

• Core and edge network infrastructure upgrades
• High-speed data center interconnects
• Campus network backbone expansion

Telecommunication and Cloud Systems

• Service provider optical transport networks
• Cloud computing data exchange systems
• High-bandwidth server-to-switch communication

Performance Advantages

• Enhanced reliability for mission-critical networking
• Efficient fiber optic data transmission with minimal loss
• Compatible with Aruba and HPE networking systems
• Stable performance in high-density network environments

Operational Efficiency Features

• Hot-swappable design for easy installation and maintenance
• Low power consumption for energy-efficient operation
• Compact SFP+ form factor for flexible deployment

Product Highlights and Key Benefits

Optimized High-Speed Networking Performance

• Supports ultra-fast 10 Gbps data transfer rate for modern network demands
• Ensures low-latency and stable signal transmission
• Ideal for bandwidth-intensive applications and enterprise workloads

Reliable Long-Distance Connectivity

• Designed for up to 10 km reach over single-mode fiber (SMF)
• Equivalent to approximately 6.2 miles transmission distance
• Maintains signal integrity across extended network links

HPE 1990-4657 Aruba 10G SFP+ LC LR 10KM SMF Transceiver

The HPE 1990-4657 Aruba 10G SFP+ LC LR 10KM SMF Transceiver Module represents a high-performance optical networking component engineered for modern enterprise, data center, and service provider infrastructures. Designed under the Hewlett Packard Enterprise (HPE) Aruba networking portfolio, this long-range optical transceiver delivers reliable 10 Gigabit Ethernet connectivity across single-mode fiber (SMF) links up to 10 kilometers. It plays a critical role in enabling scalable, high-speed, and low-latency network architectures where stable long-distance optical communication is essential.

As organizations continue to expand their digital ecosystems, the demand for robust optical interconnect solutions like the HPE 1990-4657 increases significantly. This module supports mission-critical workloads, virtualization environments, cloud computing deployments, and high-density switching fabrics that require consistent bandwidth and minimal signal degradation over extended distances.

Core Architecture of HPE 10G SFP+ LR Transceiver 

Small Form-Factor Pluggable Plus Design

The SFP+ form factor used in the HPE 1990-4657 module is optimized for compact networking hardware while delivering high-speed 10Gbps data transmission. This compact design allows network engineers to maximize port density on switches and routers without compromising performance. The modular architecture ensures hot-swappable capabilities, enabling seamless installation and replacement without disrupting active network operations.

Long Reach Optical Transmission Design

The LR designation stands for Long Reach, which defines the module’s ability to transmit optical signals across distances up to 10 kilometers over single-mode fiber. This capability is essential for connecting geographically separated network nodes such as campus buildings, data center interconnects, metropolitan area networks, and enterprise branch locations.

Signal Integrity and Optical Performance Optimization

The HPE 1990-4657 incorporates advanced laser transmission technology that ensures stable signal integrity across long fiber spans. It reduces dispersion and attenuation effects commonly associated with long-distance fiber runs. The result is consistent throughput and reduced packet loss, even in demanding network environments.

Compatibility and Integration in Aruba Networking Ecosystems

Seamless Integration with Aruba Switch Platforms

This transceiver module is designed to integrate smoothly with Aruba switch families that support SFP+ interfaces. Its compatibility with HPE Aruba switching hardware ensures optimized performance and firmware-level interoperability. This tight integration reduces configuration complexity and enhances plug-and-play deployment in enterprise environments.

Enterprise Network Deployment Scenarios

The HPE 1990-4657 is widely used in enterprise environments where reliable backbone connectivity is required. It is commonly deployed in core switching layers, aggregation networks, and inter-building fiber links. Its ability to maintain stable 10Gbps throughput over long distances makes it a preferred choice for organizations with distributed infrastructure.

Data Center Interconnect Applications

In modern data centers, interconnectivity between racks, rows, or even separate facilities requires high-bandwidth optical links. The LR transceiver module provides a dependable solution for data center interconnect (DCI) environments, ensuring seamless communication between virtualized servers, storage systems, and network controllers.

Scalability in Cloud-Driven Environments

Cloud computing environments demand elastic and scalable networking components. The HPE 1990-4657 supports scalability by enabling long-distance 10G links that can be easily expanded as infrastructure grows. This makes it suitable for hybrid cloud architectures and multi-site enterprise deployments.

Fiber Optic Technology and Signal Transmission Principles

Single-Mode Fiber Communication Fundamentals

The transceiver operates over single-mode fiber, which uses a narrow core to allow light to travel in a single propagation path. This design significantly reduces modal dispersion and allows signals to travel farther distances compared to multi-mode fiber systems. The 10km range of the HPE 1990-4657 is achieved through this precise optical engineering approach.

LC Duplex Connector Interface

The module uses LC duplex connectors, a widely adopted standard in high-density fiber installations. These connectors provide a secure and low-loss connection between optical cables and transceiver ports. Their compact size allows for efficient use of switch panel space, making them ideal for high-density networking environments.

Optical Alignment and Connector Precision

Accurate alignment between fiber strands and transceiver optics is critical for maintaining performance. The LC interface ensures precise alignment, minimizing insertion loss and reflection. This contributes to stable signal transmission and improved overall network reliability.

Performance Characteristics of HPE 1990-4657 Module

10 Gigabit Ethernet Data Rate Support

The module supports a data transfer rate of up to 10Gbps, aligning with IEEE 802.3ae standards for 10G Ethernet. This ensures compatibility with modern high-speed network infrastructures and supports bandwidth-intensive applications such as video streaming, virtualization, and large-scale data processing.

Low Latency Transmission Capabilities

Latency is a critical factor in network performance, especially in financial services, cloud computing, and real-time communication systems. The HPE 1990-4657 is engineered to minimize latency by optimizing optical signal conversion and reducing processing overhead within the transceiver module.

Jitter Reduction and Stability Enhancement

Stable clock recovery and signal processing mechanisms within the module help reduce jitter, ensuring consistent data flow. This is particularly important for synchronized applications such as distributed databases and real-time analytics platforms.

Use Cases in Modern Networking Infrastructure

Enterprise Backbone Connectivity

Large enterprises often require robust backbone connections between different departments, buildings, or campuses. The HPE 1990-4657 provides a reliable optical solution for these backbone links, ensuring uninterrupted communication across distributed environments.

Telecommunications Network Expansion

Telecommunication service providers utilize LR transceivers to extend fiber networks across metropolitan areas. The 10km reach of this module makes it suitable for last-mile connectivity and aggregation network layers.

Service Provider Backbone Optimization

In carrier-grade networks, consistent uptime and bandwidth efficiency are essential. The module supports these requirements by delivering stable optical performance under continuous operational loads.

Virtualization and High-Performance Computing

Virtualized environments and HPC clusters require high-speed interconnects to ensure efficient workload distribution. The HPE 1990-4657 supports these environments by maintaining high throughput and low latency across interconnected compute nodes.

Security and Data Integrity in Optical Networking

Secure Physical Layer Transmission

Fiber optic communication inherently provides improved security compared to copper-based systems, as it is more resistant to electromagnetic interference and tapping. The HPE 1990-4657 contributes to secure data transmission in sensitive enterprise environments.

Data Integrity Assurance Mechanisms

The module maintains high data integrity by minimizing signal distortion over long distances. This ensures that transmitted packets arrive accurately, supporting reliable application performance and reducing retransmission overhead.

Future-Ready Networking with HPE Aruba Optical Modules

Support for Evolving Network Demands

As network infrastructures evolve toward higher bandwidth demands, optical modules like the HPE 1990-4657 remain essential building blocks. They provide a transitional foundation for scalable 10G deployments and integration into higher-speed architectures.

Alignment with Digital Transformation Initiatives

Organizations undergoing digital transformation require flexible and high-performance networking components. This transceiver supports such initiatives by enabling reliable interconnectivity across hybrid environments, cloud platforms, and edge computing nodes.

Edge Computing Connectivity Expansion

Edge computing environments rely on distributed infrastructure that requires fast and reliable data exchange. The 10km range capability allows seamless integration between edge nodes and central data centers.

Long-Term Infrastructure Scalability

The HPE 1990-4657 ensures that network infrastructures remain scalable for future expansion, reducing the need for frequent hardware replacement and supporting long-term investment protection strategies.