Cisco SFP-10/25G-LR-S 10/25GBASE-LR SFP28 1310nm 10km DOM Transceiver Module
The Cisco SFP-10/25G-LR-S is a high-performance, dual-rate SFP28 optical transceiver built for high-speed enterprise and data center networks. Supporting 10G/25GBASE-LR with 1310nm wavelength and 10km SMF transmission, it provides reliable long-reach connectivity with DOM monitoring and hot-pluggable flexibility.
Quick Specs:
Form Factor: SFP28
Data Rate: 10G/25GBASE-LR
Wavelength: 1310nm
Transmission Distance: Up to 10km over SMF
Connector: Duplex LC
Diagnostics: Digital Optical Monitoring (DOM)
Operating Temperature: 0°C to 70°C
Compliance: IEEE 802.3by, IEEE 802.3cc, RoHS 6
Comprehensive Product Overview
The Cisco SFP-10/25G-LR-S is a cutting-edge, hot-pluggable Small Form-Factor Pluggable 28 (SFP28) transceiver module engineered to meet the evolving demands of modern high-speed networks. As a dual-rate solution, it natively supports both 10 Gigabit Ethernet (10GBASE-LR) and 25 Gigabit Ethernet (25GBASE-LR) standards, providing unparalleled flexibility for network migration and scalability.
Operating at a 1310nm wavelength, this module is optimized for use with standard G.652 single-mode fiber (SMF), enabling long-distance data links of up to 10 kilometers. A key technical requirement for its 25G operation is the support for Reed-Solomon Forward Error Correction (RS-FEC) on the host port, ensuring robust signal integrity over the full reachspg.xgslb-v3.cisco.com.
Built to exacting Cisco standards, the SFP-10/25G-LR-S undergoes rigorous testing and certification for seamless interoperability with a wide range of Cisco networking devices, including Catalyst and Nexus switches. It incorporates Digital Optical Monitoring (DOM) capabilities, allowing real-time monitoring of critical parameters such as optical transmit power, receive power, temperature, and supply voltage, facilitating proactive network management and troubleshooting.
Compliant with industry standards including IEEE 802.3by, IEEE 802.3cc, SFF-8402, and SFF-8472, and featuring Class 1 laser safety and RoHS 6 compliance, this module combines high performance, energy efficiency (max 1.3W power consumption), and environmental responsibility. Its compact SFP28 form factor ensures high port density, making it a perfect choice for space-constrained data center and enterprise environments.
Key Features & Business Benefits
Key Features
Dual-Rate Support: Simultaneous 10GBASE-LR and 25GBASE-LR Ethernet operation.
Long-Reach Transmission: 10km link span over G.652 single-mode fiber (SMF).
1310nm Wavelength: Standard, low-attenuation wavelength for long-haul SMF applications.
SFP28 Form Factor: High-density, compact package for efficient use of switch port real estate.
Digital Optical Monitoring (DOM): Real-time access to diagnostic parameters for proactive maintenance.
Hot-Pluggable: In-service installation and replacement without system downtime.
Low Power Consumption: Maximum 1.3W for energy-efficient operation.
Safety & Environmental: Class 1 laser safety certified and RoHS 6 compliant.
Cisco Certified: Thoroughly tested for guaranteed compatibility with Cisco platforms.
Business Benefits
Investment Protection: Protects your network investment by supporting both current 10G and future 25G architectures, eliminating costly forklift upgrades.
Operational Flexibility: Enables seamless migration from 10G to 25G at your own pace, accommodating evolving bandwidth demands.
Extended Network Reach: Extends high-speed connectivity up to 10km, ideal for inter-building, campus, and metro network links.
Reduced Downtime: DOM functionality allows for early fault detection and isolation, minimizing network outages and maintenance costs.
Simplified Inventory: Consolidates spares by supporting two speeds in a single module, reducing inventory complexity and costs.
Energy Efficiency: Low power draw contributes to lower cooling costs and a reduced data center carbon footprint.
Technical Specifications
Parameter
Details
Product Model
Cisco SFP-10/25G-LR-S
Form Factor
SFP28 (Small Form-Factor Pluggable 28)
Data Rate
10.31 Gbps (10GBASE-LR), 25.78 Gbps (25GBASE-LR)
Wavelength
1310 nm
Fiber Type
Single-Mode Fiber (SMF), G.652
Max Transmission Distance
10 km
Connector Type
Duplex LC/PC
Transmit Power (10G)
-8.2 to +0.5 dBm
Transmit Power (25G)
-7.0 to +2.0 dBm
Receive Power (10G)
-14.4 to +0.5 dBm
Receive Power (25G)
-13.3 to +2.0 dBm
Wavelength Range (10G)
1260 to 1355 nm
Wavelength Range (25G)
1295 to 1325 nm
Maximum Power Consumption
1.3 Watts
Operating Temperature
Commercial: 0°C to +70°C (32°F to 158°F)
FEC Requirement (25G)
RS-FEC (Reed-Solomon Forward Error Correction) required on host portspg.xgslb-v3.cisco.com
FEC Requirement (10G)
Not requiredspg.xgslb-v3.cisco.com
Diagnostics
Digital Optical Monitoring (DOM / DDM)
Safety Standards
Class 1 FDA / IEC 60825-1 Laser Safety
Environmental Standards
RoHS 6 compliant
Pull Tab Color
Blue
Ideal Application Scenarios
Data Center Interconnect (DCI): High-speed, long-distance connections between geographically dispersed data centers.
Enterprise Campus Backbone: Upgrading core and distribution layers with 25G bandwidth while maintaining 10G compatibility for existing access layers.
Metro & Service Provider Networks: Enabling high-bandwidth services over extended distances in metropolitan and regional service provider networks.
Cloud & Hyperscale Computing: Supporting the high-performance, long-reach connectivity demands of large-scale cloud infrastructure.
5G Mobile Fronthaul / Backhaul: Providing the necessary 10G/25G speed and long reach for 4G/5G cellular radio access network (RAN) connections.
High-Performance Computing (HPC): Connecting clusters of high-performance servers and storage over long distances for research and financial environments.
Campus & University Networks: Linking multiple campus buildings with high-speed, long-haul fiber connections.
Single-Mode Fiber (SMF) Patch Cables: OS1 or OS2 grade, duplex LC/PC connectors, for optimal 10km performance.
Fiber Cleaning Kits: For maintaining clean optical connections to ensure maximum performance and longevity.
SFP28 Blank Plates: For covering unused SFP28 ports to improve airflow and dust protection.
Related Cisco Modules
SFP-10/25G-CSR-S: Short-range (up to 100m) 10/25G module for multi-mode fiber (MMF).
SFP-10/25G-LR-I: Industrial temperature range (-40°C to +85°C) version of the LR moduleCisco.
SFP-10G-LR-S: Legacy 10GBASE-LR SFP+ module for existing 10G infrastructure.
Frequently Asked Questions (FAQ)
Q: Can the Cisco SFP-10/25G-LR-S module operate at both 10G and 25G speeds?
A: Yes, it is a dual-rate module that natively supports both 10GBASE-LR and 25GBASE-LR Ethernet standards.
Q: Is Forward Error Correction (FEC) required for this module?
A: FEC is required for 25G operation (specifically RS-FEC on the host port) to achieve the full 10km distance. FEC is not required for 10G operationspg.xgslb-v3.cisco.com.
Q: What type of fiber cable is required for the SFP-10/25G-LR-S?
A: It is designed exclusively for Single-Mode Fiber (SMF), specifically G.652 standard fiber. It will not operate correctly over multi-mode fiber (MMF) for the full 10km distance.
Q: What is the maximum distance this module can support?
A: It supports a link length of up to 10 kilometers over standard G.652 SMF at both 10G and 25G speeds.
Q: What is Digital Optical Monitoring (DOM), and does this module support it?
A: DOM (also known as DDM) is a feature that allows you to monitor real-time parameters like optical power, temperature, and voltage. Yes, the SFP-10/25G-LR-S fully supports DOM.
Q: Is this module hot-swappable?
A: Yes. It can be inserted or removed from a compatible switch port without powering down the system, ensuring zero downtime during upgrades or replacements.
Q: What is the difference between SFP-10/25G-LR-S and SFP-10/25G-LR-I?
A: The ‘-S’ denotes a standard commercial temperature grade (0°C to 70°C), while the ‘-I’ denotes an industrial temperature grade (-40°C to 85°C) for harsh environmentsCisco.
Q: Can this module be used with non-Cisco networking equipment?
A: While it is designed, tested, and certified for Cisco platforms, it is standards-compliant (IEEE 802.3by/cc). However, full compatibility and support are only guaranteed with Cisco hardware.
