Cisco GLC-2BX-D 2-channel SFP (mini-GBIC) Transceiver

Mfr. Part #: GLC-2BX-D
Brand: Cisco
Condition: Refurbished
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GLC-2BX-D

Cisco GLC-2BX-D 2-channel SFP (mini-GBIC) Transceiver

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GLC-2BX-D Overview

CISCO GLC-2BX-D 2-channel 1000base-bx-d Bidi Csfp 1490nm-tx/1310nm-rx 10km Dom Lc Smf Transceiver Module :

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Specifications

Overview

Condition Refurbished
Brand Cisco
Stock In Stock

Key Features

Device Type Sfp (mini-gbic) Transceiver Module
Form Factor Plug-in Module

Networking

Connectivity Technology Wired
Cabling Type 1000base-bx-d
Data Link Protocol Gige
Optical Wave Length 1490 Nm
Max Transfer Distance 6.2 Miles

Expansion / Connectivity

Interfaces 2 X Ethernet 1000base-bx-d
Compatible Slots 1 X Sfp (mini-gbic)

Frequently Asked Questions

What is the primary function of the Cisco GLC-2BX-D SFP module? +
The GLC-2BX-D is a high-performance BiDi (Bidirectional) SFP transceiver designed to transmit and receive data over a single strand of fiber optic cable. By utilizing different wavelengths for upstream and downstream traffic, this module significantly optimizes fiber infrastructure costs, allowing network administrators to double the capacity of existing fiber runs without installing additional cabling.
Does the GLC-2BX-D support Digital Optical Monitoring (DOM)? +
Yes, the 'D' suffix in the GLC-2BX-D model number confirms that this unit supports Digital Optical Monitoring. This feature provides real-time access to critical operating parameters such as optical output power, input power, temperature, laser bias current, and transceiver supply voltage, enabling proactive troubleshooting and easier performance monitoring across your enterprise network.
What type of cabling infrastructure is required for the GLC-2BX-D? +
This transceiver is designed for use with Single-Mode Fiber (SMF) cabling. Because it utilizes WDM (Wavelength Division Multiplexing) technology to facilitate bidirectional communication over one strand, it is essential to ensure that your fiber plant is clean and properly terminated to maintain signal integrity over the rated transmission distances supported by this specific SFP standard.
Can I use the GLC-2BX-D in a standard SFP port on a Cisco switch? +
The GLC-2BX-D is physically compatible with standard SFP slots found on a wide range of Cisco switches, routers, and firewalls. However, because it is a BiDi module, you must ensure you have the matching counterpart transceiver at the opposite end of the link that is configured to receive and transmit on the complementary wavelengths required for the pair.
How do BiDi modules like the GLC-2BX-D improve network scalability? +
BiDi modules are an excellent solution for capacity-constrained environments where installing new fiber is cost-prohibitive or physically impossible. By collapsing two fiber strands into one, the GLC-2BX-D allows you to maximize your existing fiber investment, effectively doubling the link capacity of your current infrastructure while maintaining the high reliability expected from Cisco hardware.
Is the GLC-2BX-D compatible with other networking brands? +
While this transceiver is engineered specifically for Cisco hardware, interoperability with third-party switches depends on the vendor's port configuration and fiber standards. For optimal stability and to ensure that the device is recognized correctly by the operating system, it is strongly recommended to use this module within the Cisco ecosystem for which it was originally calibrated.
What is the operational temperature range for this Cisco transceiver? +
The GLC-2BX-D is built to industrial standards, ensuring consistent performance within typical enterprise data center and closet environments. While specific thermal tolerances are standardized for SFP form factors, it is important to maintain adequate airflow and ensure the host device's chassis temperature remains within the recommended operating parameters to prevent performance degradation or premature module failure.
What happens if the link light does not turn on after inserting the GLC-2BX-D? +
If a link is not established, first verify that the fiber patch cable is connected to the correct port and that you are using a single-mode cable. Additionally, confirm that the wavelengths of the transceiver match the corresponding device on the other side of the link. Finally, check the Cisco IOS interface configuration to ensure the port is not administratively shut down.
How can I request a bulk quote for multiple GLC-2BX-D units? +
At BuyRouterSwitch.com, we specialize in providing competitive pricing for large-scale enterprise deployments. If you require multiple GLC-2BX-D units for a major infrastructure project, simply reach out to our sales team through our website. We are equipped to process high-volume requests and can provide customized quotes that align with your project’s budget and procurement requirements.
Why should I purchase my Cisco hardware from BuyRouterSwitch.com? +
Choosing BuyRouterSwitch.com ensures you are receiving genuine Cisco hardware sourced through a reliable supply chain. We prioritize authenticity and secure ordering processes, giving IT procurement teams the confidence that their critical networking components will function reliably out of the box. Our focus is on providing seamless access to high-quality enterprise gear with a streamlined purchasing experience for professionals.

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