GLC-BX40-D-I Cisco 1GBPS SFP SMF LC Transceiver Module

Highlights of Cisco 1GBPS SFP SMF Transceiver

The GLC-BX40-D-I Cisco SFP Transceiver is a high-quality optical networking module engineered for Gigabit Ethernet connectivity. It delivers dependable data transmission over single-mode fiber up to 40km, operating at 1550nm TX and 1310nm RX wavelengths.

Product Specification

• Manufacturer: Cisco
• Part Number: GLC-BX40-D-I
• Product Category: Optical Transceiver Module

Technical Highlights

• Optimized for data networking
• Designed for optical communication systems

Interfaces & Ports Details

• Total Ports: 1
• Connector Type: LC/PC
• Port Details: 1 x LC/PC 1000Base-BX40-D Network

Media & Performance

• Media Type: Optical Fiber
• Fiber Mode: Single-mode

Networking Technology

• Ethernet Standard: Gigabit Ethernet
• Network Protocol: 1000Base-BX40-D

Physical Detailed

• Height: 0.3"
• Width: 0.5"
• Depth: 2.2"
• Weight: Approx. 0.17 lb

Miscellaneous Details

Compatibility

• MSA Compliant for interoperability
• Compatible with Cisco Catalyst Series Switches:
  • 4503
  • 4503-E
  • 4504
  • 4506
  • 4506-E

Overview of Cisco GLC-BX40-D-I 1GBPS SFP Transceiver Module

The Cisco GLC-BX40-D-I 1GBPS SFP Transceiver Module is an enterprise-class optical networking component designed to deliver stable, long-distance Gigabit Ethernet connectivity across single-mode fiber infrastructures. As organizations continue to expand their network environments, reliable optical transceivers remain essential for maintaining uninterrupted communication between switches, routers, servers, storage systems, and telecommunications equipment. This Small Form-Factor Pluggable (SFP) module provides exceptional transmission performance while supporting compact deployment within high-density networking hardware.

Built according to Cisco's stringent engineering standards, the GLC-BX40-D-I optical transceiver offers dependable signal integrity, minimal latency, and consistent bandwidth for mission-critical enterprise applications. Designed for bidirectional communication over a single strand of single-mode fiber, this transceiver reduces fiber infrastructure requirements while maintaining Gigabit Ethernet performance across extended distances. The integrated LC connector ensures reliable optical connections, making installation straightforward for data centers, campus networks, telecommunications providers, industrial environments, and enterprise backbone deployments.

Enterprise Gigabit Ethernet Connectivity

Gigabit Ethernet continues to serve as one of the most widely deployed networking technologies across businesses of every size. The Cisco GLC-BX40-D-I enables organizations to achieve dependable 1Gbps data transmission while maintaining compatibility with numerous Cisco networking platforms. Whether deployed within corporate LAN environments, metropolitan fiber networks, educational institutions, healthcare facilities, or government infrastructures, this SFP module provides consistent optical communication.

Modern networking demands require optical interfaces capable of delivering continuous uptime while supporting bandwidth-intensive applications. The Cisco GLC-BX40-D-I addresses these requirements through precision optical components engineered for stable transmission performance under continuous operation. Organizations benefit from reduced packet loss, excellent signal quality, and dependable long-distance communication that supports both current and future networking requirements.

Designed for Continuous Network Availability

Enterprise networks often operate around the clock, requiring networking components that can withstand constant workloads. The Cisco GLC-BX40-D-I is designed for uninterrupted performance, enabling organizations to maintain reliable communication between geographically separated network devices. Continuous data transfer capability makes this module suitable for organizations where downtime can significantly impact productivity, customer service, or business operations.

Single-Mode Fiber Technology Advantages

Single-mode fiber has become the preferred medium for long-distance optical networking because of its superior transmission characteristics and reduced signal attenuation. The Cisco GLC-BX40-D-I fully utilizes these advantages by supporting communication over single-mode fiber, allowing organizations to extend network connectivity far beyond traditional copper Ethernet limitations.

Unlike multimode fiber solutions, single-mode fiber minimizes modal dispersion, allowing cleaner optical transmission over significantly greater distances. This results in higher network reliability, improved signal quality, and consistent bandwidth performance across enterprise campus environments and metropolitan networks.

Reduced Signal Degradation

Signal degradation represents one of the primary concerns in optical networking. Single-mode fiber significantly reduces optical distortion, enabling the Cisco GLC-BX40-D-I to maintain dependable communication over extended distances. Lower attenuation improves overall network stability while reducing retransmissions caused by signal errors.

Bidirectional Optical Communication

One of the defining characteristics of the Cisco GLC-BX40-D-I is its bidirectional optical transmission capability. Traditional fiber links typically require two optical fibers for simultaneous transmission and reception. Bidirectional technology enables communication using only a single strand of single-mode fiber by transmitting and receiving different wavelengths simultaneously.

This design reduces fiber utilization requirements while maximizing existing infrastructure capacity. Organizations deploying metropolitan networks, campus environments, or remote branch connectivity can significantly reduce installation complexity without sacrificing communication quality.

Optimized Fiber Utilization

Efficient use of fiber infrastructure allows organizations to maximize available network resources. By reducing the number of fibers required for each communication link, network expansion becomes more cost-effective while preserving unused fiber capacity for future deployments.

Compact Small Form-Factor Pluggable Design

The Small Form-Factor Pluggable architecture has become the industry standard for modular optical connectivity because it enables exceptional flexibility across networking environments. The Cisco GLC-BX40-D-I follows the SFP standard, allowing rapid installation, replacement, and maintenance without requiring complete hardware replacement.

The compact dimensions support high-density networking equipment where maximizing available interface ports is essential. Enterprise switches and routers frequently contain dozens of SFP slots, enabling scalable deployment across growing network infrastructures.

Hot-Swappable Functionality

Hot-swappable capability allows network administrators to replace or upgrade transceivers without powering down the networking device. This minimizes maintenance interruptions while improving operational efficiency during planned upgrades or troubleshooting procedures.

Reliable LC Optical Connector Interface

The Cisco GLC-BX40-D-I incorporates an LC optical connector, one of the most widely adopted connector standards in enterprise optical networking. The LC interface provides secure optical alignment, minimizing insertion loss while maintaining stable communication throughout extended operational periods.

Compact LC connectors also contribute to higher port density within enterprise networking hardware, allowing organizations to maximize rack space while simplifying cable management.

Precision Optical Alignment

Accurate optical alignment minimizes transmission losses between interconnected fiber cables. The LC connector design ensures consistent optical coupling, improving communication reliability while reducing maintenance requirements associated with unstable fiber connections.

Compatibility with Cisco Networking Equipment

The Cisco GLC-BX40-D-I has been engineered specifically for compatibility with a broad range of Cisco networking platforms. Organizations utilizing Cisco switches, routers, security appliances, and network management solutions benefit from seamless integration and dependable interoperability across existing infrastructures.

Compatibility extends deployment flexibility while simplifying network expansion projects. Network administrators can standardize optical components across multiple locations, improving inventory management and reducing operational complexity.

Switch Integration

Cisco enterprise switches commonly utilize SFP interfaces to provide flexible optical connectivity. The GLC-BX40-D-I supports Gigabit Ethernet communication between access switches, aggregation switches, and core networking equipment while maintaining excellent signal integrity.

Router Connectivity

Enterprise routers frequently require optical interfaces for WAN connectivity and metropolitan network integration. The Cisco GLC-BX40-D-I enables reliable router-to-router communication over single-mode fiber while maintaining consistent Gigabit Ethernet performance.

Applications Across Enterprise Industries

Data Centers

Modern data centers require dependable optical communication between switching infrastructure, storage systems, virtualization platforms, and server clusters. The Cisco GLC-BX40-D-I supports these environments through reliable Gigabit Ethernet connectivity capable of operating continuously within demanding enterprise workloads.

Educational Institutions

Universities, schools, and research organizations frequently deploy large campus fiber networks connecting multiple academic buildings. The long-distance capabilities of this optical transceiver support centralized network management while maintaining consistent performance across campus infrastructures.

Healthcare Organizations

Hospitals and healthcare facilities rely on uninterrupted network communication to support electronic medical records, diagnostic imaging systems, patient monitoring equipment, and administrative services. Reliable optical connectivity contributes to continuous access to mission-critical healthcare applications.

Government Networks

Government agencies often maintain geographically distributed facilities requiring secure and dependable optical communication. The Cisco GLC-BX40-D-I supports these environments by delivering stable Gigabit Ethernet transmission suitable for administrative, operational, and public service applications.

Industrial Facilities

Manufacturing environments frequently deploy fiber infrastructure connecting production facilities, automation systems, and centralized management platforms. Optical communication minimizes electromagnetic interference while supporting dependable industrial networking operations.

Performance Characteristics

Stable Data Transmission

Reliable data transmission forms the foundation of every enterprise network. The Cisco GLC-BX40-D-I delivers stable optical communication capable of supporting business applications, cloud services, voice communication, video conferencing, virtualization, and enterprise collaboration platforms.

Low Optical Loss

Carefully engineered optical components minimize insertion loss and maximize signal efficiency. Reduced optical loss contributes to stronger communication quality over extended distances while improving network resilience.

High Reliability

Enterprise optical transceivers must withstand continuous workloads without performance degradation. Cisco's engineering standards emphasize durability, consistent manufacturing quality, and dependable operational characteristics suitable for demanding network environments.

Network Scalability

Business growth often requires gradual expansion of networking infrastructure. The modular design of the Cisco GLC-BX40-D-I supports scalable deployment strategies, allowing organizations to add optical interfaces as network requirements evolve. This flexibility minimizes unnecessary infrastructure replacement while supporting phased expansion projects.

Future Infrastructure Readiness

Deploying standardized SFP transceivers simplifies future upgrades by maintaining compatibility with numerous networking platforms. Organizations can preserve existing optical infrastructure while expanding capacity according to operational requirements.

Installation and Deployment Flexibility

Installation of the Cisco GLC-BX40-D-I is straightforward because of its standardized SFP architecture and LC optical interface. Network administrators can rapidly deploy new optical links, replace existing modules, or perform maintenance without extensive downtime.

The compact module design supports installation in high-density networking equipment where efficient utilization of rack space remains a critical operational objective. Cable management also benefits from the small physical footprint of LC optical connectors.

Network Reliability for Mission-Critical Applications

Mission-critical enterprise applications require networking hardware capable of delivering uninterrupted communication. Financial institutions, healthcare providers, educational organizations, manufacturing facilities, and telecommunications operators all depend upon stable optical connectivity for daily operations.

The Cisco GLC-BX40-D-I contributes to network reliability by maintaining consistent optical communication under demanding workloads. High-quality manufacturing standards, dependable optical performance, and enterprise-grade engineering collectively support continuous business operations while minimizing communication interruptions.

Business Continuity Support

Reliable network infrastructure directly influences organizational productivity. Optical transceivers serving backbone network connections must consistently perform under heavy traffic conditions, enabling uninterrupted access to business-critical applications, cloud platforms, storage environments, and collaboration systems throughout daily operations.

Benefits of Choosing Cisco Optical Transceivers

Cisco optical networking products have earned widespread recognition for quality, compatibility, and dependable performance across enterprise environments worldwide. The GLC-BX40-D-I reflects Cisco's commitment to engineering excellence through rigorous testing, precision manufacturing, and reliable interoperability with Cisco networking platforms.

Organizations selecting genuine Cisco optical transceivers benefit from predictable performance, simplified deployment, improved compatibility, and long-term operational reliability. Standardizing networking infrastructure using Cisco-certified optical modules also streamlines inventory management, maintenance procedures, and future network expansion initiatives while supporting consistent enterprise networking performance across diverse business environments.