Name: GLC-BX40-D-I Cisco 40km Gigabit Ethernet SFP Transceiver Module 1310nm
Brand: Cisco
SKU: GLC-BX40-D-I
Price: 499.00 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The Cisco GLC-BX40-D-I transceiver module enables long-distance Gigabit Ethernet connections using single-mode fiber. It slots into compatible Cisco devices to extend network reach up to 40 kilometers, fitting seamlessly into existing setups. This module is a practical choice when reliable fiber connectivity is needed beyond typical short-range links.

General Information
Brand	Cisco
Part Number	GLC-BX40-D-I

Technical Information
Form Factor	SFP
Media	SMF
Type	DFB
Protocols	1000BASE-BX (Gigabit Ethernet)
Connector	Simplex LC

Physical Characteristics
Weight	5.00
Condition	Refurbished

Product Description
The Cisco GLC-BX40-D-I is a small form-factor pluggable transceiver designed to extend Gigabit Ethernet connections over longer distances. It is commonly used in enterprise and data center environments where fiber links need to reach up to 40 kilometers. Built for networking professionals managing fiber optic infrastructures, this module fits into SFP slots on Cisco switches and routers, offering a simple way to upgrade or expand network reach without major changes. Key Features Transfers data reliably up to 40 kilometers on single-mode fiber cables Operates at 1310nm, supporting Gigabit Ethernet speeds Fits standard SFP slots, ensuring broad device compatibility Enables hot-swapping for uninterrupted network operation Includes digital diagnostics for monitoring optical output and temperature This transceiver is often found in network backbones or between buildings on a campus, where longer distance and stable throughput are essential. Its design helps maintain network performance without excessive complexity or cost.

Use Cases
The Cisco GLC-BX40-D-I transceiver module is designed for networking environments requiring reliable long-distance fiber connections. It is particularly suited for enterprise IT teams and service providers that manage geographically dispersed facilities or data centers needing high-bandwidth Gigabit Ethernet links. How It's Used: Connecting remote office locations to central data centers over single-mode fiber in enterprise WAN deployments. Extending network reach in campus environments where fiber infrastructure spans beyond standard short distances. Linking storage clusters across different buildings in virtualization environments to maintain low latency and high throughput. Facilitating backbone connectivity between aggregation switches in service provider network infrastructures. Supporting edge computing nodes that require dependable single-mode fiber connectivity for data transfer over extended distances. By enabling stable 40km connections, this transceiver module supports scalable network architectures and enhances operational efficiency, particularly where long-haul fiber links are essential for maintaining performance and minimizing downtime.

GLC-BX40-D-I Cisco 40km Gigabit Ethernet SFP Transceiver Module 1310nm

Product Overview

General Information

Technical Information

Physical Characteristics

Product Description

Use Cases