Cisco SFP-10G-LRM Full Official Product Description
1. Part Number & Naming Definition
Official Full Name
Cisco 10GBASE-LRM SFP+ Multimode Optical Transceiver Module with Digital Optical Monitoring Support
SKU:SFP-10G-LRM
Naming Breakdown
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SFP+: Enhanced Small Form-Factor Pluggable Plus hot-swappable transceiver form factor
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10G: 10 Gigabit Ethernet operating rate
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LRM: Long Reach Multimode; 1310 nm transmitter optimized for legacy multimode fiber, defined under IEEE 802.3aq
Core Product Positioning
The Cisco SFP-10G-LRM is a hot‑swappable commercial-grade SFP+ transceiver compliant with IEEE 802.3aq 10GBASE-LRM. It leverages Electronic Dispersion Compensation (EDC) technology to support 10-Gigabit transmission over older generations of multimode fiber that cannot support standard SFP-10G-SR. It serves as an economical upgrade solution for existing enterprise campus and data center cabling infrastructure without full fiber replacement. Built-in DOM/DDM enables continuous real-time monitoring of optical operating parameters. The module supports Fibre Channel over Ethernet (FCoE) for converged data and storage networks.
2. Hardware & Software Compatibility
Supported Host Platforms
Cisco Catalyst 3650, 3850, 4500-X, 6500, 6800, 9200, 9300 Series; Nexus 2000, 3000, 5000, 9000 Series Switches; ASR 1000, ASR 900 Series Routers; UCS Fabric Interconnects; MDS 9000 Storage Switches and Firepower appliances equipped with SFP+ ports.
Supported IOS / IOS XE / NX-OS Versions
All mainstream Cisco operating system releases supporting SFP+ MSA specification and SFF‑8472 DOM diagnostic functions.
Supported Fiber Type
Primary: Multimode Fiber (MMF) OM1, OM2, OM3; also interoperable with G.652 single-mode fiber for short distances.
Important Note: Mode conditioning patch cords are required for OM1 and OM2 multimode deployments; mode conditioning cables are not necessary for OM3 laser-optimized multimode fiber.
Unsupported Platforms
Gigabit-only SFP slots without SFP+ capability, QSFP ports without adapters, legacy GBIC interfaces.
3. Physical & Optical Performance Specifications
Form Factor
Hot‑swappable SFP+, compliant with SFF‑8431, SFF‑8432 & SFF‑8472 (DOM support)
Optical Interface
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Transmitter: 1310 nm FP Laser
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Connector: Duplex LC
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Data Rate: 9.95 Gbps ~ 10.3125 Gbps (10GBASE-LRM)
Maximum Transmission Reach
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OM1 (62.5μm FDDI-grade MMF): Up to 220 m
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OM2 (50μm MMF): Up to 220 m
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OM3 laser-optimized MMF: Up to 220 m
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G.652 9/125μm Single-Mode Fiber: Up to 300 m (non-IEEE extended capability)
Optical Power Budget
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Transmit Optical Modulation Amplitude (OMA): -4.5 dBm ~ +1.5 dBm
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Average Transmit Power: -6.5 dBm ~ +0.5 dBm
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Receiver Sensitivity: Minimum -13.0 dBm
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Maximum Allowable Received Power: 0.5 dBm
Digital Diagnostics
DOM / DDM (Digital Diagnostic Monitoring) Supported
Monitors module internal temperature, supply voltage, laser bias current, transmit optical power and receive optical power.
Environmental Operating Parameters (Commercial Grade)
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Operating Temperature:0°C ~ +70°C (32°F ~ 158°F)
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Storage Temperature: -40°C ~ +85°C (-40°F ~ 185°F)
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Relative Humidity: 5% – 95%, non‑condensing
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Maximum operating altitude: 3,000 meters
Typical Power Consumption
4. Supported Functional Capabilities
Ethernet Transport
Wire-speed 10 Gigabit Ethernet full-duplex transmission, 64b/66b line coding
Layer 2 Protocol Support
802.1Q VLAN trunking, 802.3x pause frame flow control, LACP, STP/RSTP/MSTP, EtherChannel link aggregation
Additional Supported Protocols
Fibre Channel over Ethernet (FCoE)
Interface Diagnostics
Link status detection, error counters, DOM real-time optical telemetry, local loopback testing
High Availability
OIR online insertion and removal on supported chassis; link redundancy via spanning tree or port channels
Operations & Management
IOS / NX-OS CLI, SSH, SNMP v2c/v3, Syslog logging, DOM optical parameter polling
5. Typical Deployment Scenarios
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Enterprise campus upgrades utilizing legacy OM1 / OM2 multimode cabling
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Data center migration projects where existing multimode fiber cannot meet SFP-10G-SR distance limits
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Mid-range intra-building point-to-point 10G fiber connections up to 220 meters
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Converged storage networking with FCoE over existing multimode infrastructure
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Virtualization server uplinks to aggregation switches in older equipment rooms
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Spare replacement transceiver for Cisco enterprise and data center switching/routing platforms
6. Regulatory & Compliance Certifications
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Safety Standards: UL 60950‑1, IEC/EN 60950‑1, CSA C22.2 No.60950‑1
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EMC Compliance: CE Mark, FCC Part 15 Class A, ICES‑003 Class A
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Laser Safety: Class 1 Laser Product per IEC 60825‑1
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Industry Standards: IEEE 802.3aq, SFP+ MSA SFF‑8431, SFF‑8472
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Environmental: RoHS compliant, WEEE directive compliant
7. Standard Factory Package Contents
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Cisco SFP-10G-LRM 10GBASE‑LRM SFP+ Optical Transceiver
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Hardware installation guide
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Safety and regulatory documentation
Note: Duplex LC fiber patch cables and mode conditioning cords (if required) are sold separately.
End-of-Sale Status
Cisco SFP-10G-LRM remains active and available for new orders.
Model Comparison Reference
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SFP-10G-LRM: Commercial grade, multimode optimized for legacy fiber, supports FCoE
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SFP-10G-SR: Short-reach 850 nm VCSEL solution for OM3/OM4 new multimode fiber
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SFP-10G-LR: 1310 nm single-mode transceiver for 10 km transmission
UNSPSC Classification Code
43222618 – Cisco SFP-10G-LRM commercial multimode SFP+ transceiver with DOM, hot‑swappable 10 Gigabit optical module optimized for legacy multimode cabling for Cisco enterprise and data center switches and routers.
Hardware Warranty
Original Cisco units carry Cisco limited hardware warranty; refurbished units follow reseller warranty terms.
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