Cisco Fiber Optic Module X2-10G-LR

Cisco Fiber Optic Module X2-10G-LR:

The Cisco fiber optic module X2-10G-LR is a hot-pluggable 10 Gigabit Ethernet optical transceiver module designed for long-distance fiber optic communication. It uses the X2 form factor, which is an older, larger standard compared to modern SFP+ optics.

This Cisco module supports the 10GBASE-LR standard (IEEE 802.3ae) and operates at a data rate of 10 Gbps over single-mode fiber (SMF), using a 1310 nm wavelength laser to achieve transmission distances of up to 10 kilometers. I

t typically connects via duplex SC or LC connectors and is widely used in enterprise networks, data centers, metro networks, and service provider environments for long-reach links between switches or routers.

The X2-10G-LR consumes around 4.5 watts of power and supports digital diagnostics monitoring (DDM) for parameters like temperature and optical power levels. Although it is highly reliable, the X2 form factor is now considered legacy technology, being larger and less power-efficient compared to modern SFP+ or QSFP modules.

For backward compatibility, Cisco offers an X2-to-SFP+ adapter (CVR-X2-SFP10G) that allows the use of SFP+ optics in X2 slots. Despite being end-of-sale in many cases, the module remains in use in older systems where long-distance 10G fiber links are required.

Introducing Cisco Fiber Optic Module X2-10G-LR:

The Cisco X2-10G-LR is a 10 Gigabit Ethernet optical transceiver module designed for long-distance fiber optic communication in enterprise, data center, and service provider networks. Built in the X2 form factor, which is larger than modern SFP+ optics, this module supports the 10GBASE-LR (IEEE 802.3ae) standard and delivers a data rate of 10 Gbps.

This network module operates at a 1310 nm wavelength and uses 9/125 µm single-mode fiber (SMF) to achieve a transmission distance of up to 10 kilometers, making it ideal for campus and metro connections. The X2-10G-LR connects through SC or duplex LC fiber connectors and offers digital diagnostics monitoring (DDM) to track critical parameters like temperature and transmit/receive optical power.

With a typical power consumption of about 4.5 watts, the module is compatible with Cisco switches and routers equipped with X2 ports. Although considered a legacy solution compared to modern SFP+ or QSFP optics, it remains reliable for long-range 10G connectivity in existing infrastructures.

This module designed by Cisco company and you can buy it in network equipment market with 1-year Atech warranty. If you want to know more about network module specially cisco fiber optical module, you can contact us.

How Cisco X2-10G-LR Works?

• The module converts electrical signals from the network device into optical signals (laser light at 1310 nm) for transmission over fiber.
• On the receiving end, it converts the incoming optical signals back into electrical signals for the switch or router.
• It uses long-wavelength lasers suitable for long-distance links (10 km).

Pros and Cons of Cisco Fiber Optic Module X2-10G-LR:

Pros

• Reliable for 10 km SMF links.
• Hot-pluggable and easy to replace.
• Built for Cisco devices (guaranteed compatibility).

Cons

• Large size compared to modern SFP+.
• Higher power consumption.
• Legacy technology (less common today).

Features of Cisco Fiber Optic Module X2-10G-LR:

• Form Factor: X2 (larger than SFP/SFP+)
• Interface: SC or Duplex LC fiber connectors
• Standard: 10GBASE-LR (IEEE 802.3ae)
• Data Rate: 10 Gbps
• Wavelength: 1310 nm (typical for LR optics)
• Reach: Up to 10 km over Single-Mode Fiber (SMF)
• Fiber Type: 9/125 µm single-mode fiber
• Power Consumption: Around 4.5 W (varies slightly by vendor)
• Compatibility: Cisco switches/routers with X2 ports
• Digital Diagnostics (DDM): Yes (temperature, TX/RX power, etc.)

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