GLC-FE-100BX-D Cisco SFP 100MBPS Ethernet Transceiver Module

Cisco SFP 100MBPS Transceiver Module

The Cisco GLC-FE-100BX-D is a compact SFP transceiver module designed for 100Mbps Fast Ethernet connectivity. It provides dependable optical fiber communication, ensuring efficient data transfer across enterprise and telecom infrastructures.

General Information

• Manufacturer: Cisco
• Part Number: GLC-FE-100BX-D
• Device Type: Transceiver Module

Technical Specifications

• Data Networking
• Optical Fiber Communication
• Total Ports: 1
• Connector Type: LC
• Port Details: 1 x LC 100Base-BX10

Media and Performance

• Optical Fiber
• Single-mode

Ethernet and Network Technology

• Fast Ethernet
• 100Base-BX10 Standard
• Maximum Distance: 10 km

Physical Characteristics

• Hot-swappable design

Dimensions

• Height: 0.3"
• Width: 0.5"
• Depth: 2.2"

Miscellaneous Information

• Spare product availability
• Wavelength: 1310 nm
• Surge Current: 30mA
• 1550 nm TX3 / 1310 nm RX4 wavelength, 10 km over single-strand fiber
• Supports pay-as-you-populate model
• Interchangeable with other 100BASE-X SFPs
• Cisco quality ID feature for authentication
• Optical interoperability with 100BASE-X Ethernet interfaces

Transmit Power (dBm)

• -8 minimum
• -14 maximum

Receive Sensitivity (dBm)

• -7 maximum
• -28.2 minimum

Compatibility and Platform Support

• Catalyst 6500 Series
• Catalyst 4500 Series
• Catalyst 2960 Series

Cisco GLC-FE-100BX-D 100MBPS Transceiver Module Overview

The Cisco GLC-FE-100BX-D SFP 100MBPS Ethernet Transceiver Module is a high-performance, compact, and reliable optical networking component designed for Fast Ethernet connectivity in enterprise and service provider environments. this Small Form-Factor Pluggable (SFP) module is engineered to deliver stable bidirectional data transmission over a single strand of fiber, making it an efficient solution for modern network infrastructures where space optimization and cost-effective deployment are critical.

Core Architecture and Functional Design

Compact SFP Form Factor

The SFP architecture of the Cisco GLC-FE-100BX-D module ensures compactness, hot-swappability, and interoperability with a wide range of Cisco networking equipment. This compact design allows network engineers to scale infrastructure without increasing physical footprint, making it highly suitable for dense rack environments in data centers and enterprise wiring closets.

Hot-Swappable Capability

One of the defining features of this transceiver module is its hot-swappable functionality. It allows installation or replacement without powering down network devices, reducing downtime and maintaining uninterrupted service continuity. This capability is particularly beneficial in mission-critical environments where uptime is a priority.

Bidirectional Single-Fiber Transmission

The GLC-FE-100BX-D module uses bidirectional optical transmission technology, enabling data to be transmitted and received over a single strand of fiber. This significantly reduces fiber infrastructure costs and simplifies cable management. It operates using different wavelengths for transmitting and receiving signals, ensuring minimal interference and optimal signal clarity.

Wavelength Separation Technology

The module typically operates using paired wavelengths to separate upstream and downstream traffic. This wavelength division allows efficient full-duplex communication over a single fiber core, reducing the requirement for dual-fiber deployments while maintaining high signal integrity and reliability.

Performance and Network Efficiency

100BASE-BX Fast Ethernet Standard

The Cisco GLC-FE-100BX-D supports the 100BASE-BX Fast Ethernet standard, delivering consistent 100Mbps data transfer rates. This makes it suitable for legacy network environments and specific enterprise use cases where Fast Ethernet remains sufficient for operational requirements such as branch office connectivity, surveillance systems, and industrial networking.

Stable Throughput Characteristics

The module is optimized to maintain stable throughput with minimal packet loss. Its optical transceiver technology ensures low latency communication, which is essential for applications requiring predictable network behavior such as VoIP systems, monitoring platforms, and remote access networks.

Extended Transmission Distance

The Cisco GLC-FE-100BX-D is capable of transmitting data over long distances using single-mode fiber. This capability makes it ideal for connecting geographically separated network nodes, campus buildings, and metropolitan area network (MAN) deployments where copper-based Ethernet solutions are insufficient.

Signal Integrity Optimization

Advanced optical calibration ensures that signal degradation is minimized even over extended distances. This results in reliable performance in environments where fiber runs are exposed to environmental variations or physical routing complexities.

Compatibility and Integration

Cisco Device Ecosystem Support

The module is designed for seamless integration with a wide range of Cisco networking hardware, including switches, routers, and optical transport systems. Its compliance with Cisco’s interoperability standards ensures consistent performance across supported platforms.

Plug-and-Play Deployment

The GLC-FE-100BX-D supports plug-and-play functionality, enabling quick installation without the need for complex configuration. Once inserted into a compatible SFP slot, the module is automatically detected and becomes operational within seconds, simplifying deployment workflows.

Interoperability Considerations

While optimized for Cisco systems, the module also adheres to industry-standard optical specifications, allowing it to function in multi-vendor environments under proper compatibility conditions. This flexibility makes it a practical choice for hybrid network infrastructures.

Firmware and Hardware Synchronization

Cisco devices often incorporate firmware-level validation to ensure compatibility with optical modules. The GLC-FE-100BX-D is fully recognized by Cisco hardware, reducing compatibility risks and ensuring stable long-term operation.

Applications and Use Cases

Enterprise Network Connectivity

In enterprise environments, the Cisco GLC-FE-100BX-D is commonly used to connect departmental switches, branch offices, and access layer devices. Its reliable Fast Ethernet performance ensures that business-critical applications remain operational without network interruptions.

Office Interconnectivity

Organizations often deploy this module to interconnect buildings or floors within corporate campuses, leveraging its single-fiber efficiency to reduce infrastructure complexity while maintaining strong network performance.

Telecommunication Networks

Telecom service providers utilize the module in access networks where cost-efficient fiber deployment is necessary. Its ability to support long-distance communication makes it suitable for last-mile connectivity solutions.

Access Layer Optimization

Within telecom architectures, the module plays a crucial role in optimizing access layer performance by ensuring stable signal transmission between aggregation nodes and customer endpoints.

Surveillance and Security Systems

The GLC-FE-100BX-D is frequently used in IP surveillance systems, where stable bandwidth and reliable connectivity are required for continuous video transmission. Its low latency characteristics support real-time monitoring applications.

Industrial Monitoring Networks

In industrial environments, the module enables connectivity between monitoring equipment and central control systems, ensuring uninterrupted data flow for operational analytics and safety management systems.

Specifications and Engineering Standards

Optical Performance Standards

The Cisco GLC-FE-100BX-D complies with stringent optical performance standards to ensure reliable signal transmission. It adheres to industry protocols governing Fast Ethernet optical communication, ensuring compatibility and predictable performance across deployments.

Signal Modulation and Encoding

The module uses standardized optical encoding techniques to maintain signal clarity over fiber networks. These techniques minimize jitter and ensure that transmitted data remains intact even in high-traffic environments.

Power Efficiency and Thermal Management

Designed for energy-efficient operation, the module consumes minimal power while maintaining consistent performance. Its thermal design ensures that heat generation is kept within acceptable limits, contributing to overall system stability.

Low Power Consumption Architecture

The internal circuitry is optimized for low power usage, making it suitable for large-scale deployments where energy efficiency is a key operational consideration.

Installation and Deployment Considerations

Physical Installation Process

Installation of the Cisco GLC-FE-100BX-D involves inserting the module into a compatible SFP slot on a Cisco networking device. The design ensures a secure fit and stable electrical and optical connection without requiring additional mounting hardware.

Connector Alignment and Fiber Handling

Proper alignment of fiber connectors is essential for optimal performance. The module supports standard LC connectors, ensuring consistent optical coupling and minimal signal loss.

Network Configuration Readiness

Once installed, the module is automatically recognized by Cisco systems, reducing the need for manual configuration. This plug-and-play readiness simplifies network scaling and reduces deployment time.

Operational Verification

Network administrators typically verify module operation through device interfaces that display link status, optical power levels, and connectivity indicators to ensure proper functioning after installation.