Cisco SFP-10G-LRM Compatible 10GBase-LRM SFP+ 1310nm 300m DOM Duplex LC MMF Optical Transceiver Module

Cisco Compatible

MSRP: $63.61
Was: $49.97
Now: $19.99
(You save $43.62 )
In Stock
0.10 LBS
Form Factor:
Rate Category:
Interface Type:
TX Wavelength:
Cable Type:
Adding to cart… The item has been added

SFP-10G-LRM-FL Cisco (10GBase-LRM) Optical Transceiver

Example Application

Platform Support

All FluxLight 10GBase-LRMs

Full downloadable spec sheet: SFP-10G-LRM-FL

FluxLight's SFP-10G-LRM-FL is a Cisco® compatible 10GBase SFP+ Fiber Optic Transceiver and is factory pre-programmed with all the necessary configuration data for seamless network integration. Our transceivers perform identically to Cisco® original transceivers and are 100% compatible with other OEM and third party transceivers. The Cisco SFP-10G-LRM-FL is 100% MSA (Multi-Source Agreement) compliant. All FluxLight's transceiver modules are tested for 100% functionality and guaranteed compatible for outstanding network performance.

FluxLight offers all brands and form factors of Optical Transceivers for all your networking needs. Now you have a reliable, compatible and affordable means to expand your network while maintaining its integrity.

Example Application

SPECIAL CIRCUMSTANCES SERIES: FluxLight 10GBASE-LRM Optical Transceiver Application

10GBASE-LRM over existing FDDI Fiber


So here is the situation, you have an existing switch in your main campus data center that is bursting at the seams. You only have a small budget and not a lot of time to get a bunch of 1G optical connections deployed a few floors up.  A maintenance guy who has worked there forever tells you there is some old multimode fiber they deployed for 100Mbps transmission back in the 80’s running up to the floor in question…and it is not in use. You are in luck! No so fast. It turns out that is the old orange-jacketed FDDI grade fiber, not the new laser-optimized OM3 fibers in the aqua jacket. You check out the 10GBASE-SR specifications and find its good for a lousy 26 meters on this old fiber. The link you are trying to push is more like 126 meters. What are you going to do?

You do some more investigating and find there is another transceiver type, costs a few bucks more but sounds like it will do the job. It is called a 10GBASE-LRM, LRM meaning Long Range Multimode. This module, deployed along with the use of mode-conditioning fiber jumpers, is designed for up to 220 meters over 62.5 micron core FDDI grade fiber. The key bit of technology to make this possible is called Electronic Dispersion Compensation (EDC). The EDC circuitry in the receiver of the LRM transceivers compensates for the optical signal degradation caused by modal dispersion.

For illustrative purposes two different brands of Ethernet switches are used in this example, an existing Cisco switch down in the data center and a new Meraki device to be deployed upstairs. The main data center switch is the Cisco Catalyst 3850-24XS. The new Meraki is model number is MS410-16. All that is necessary beyond those switches are the 10GBASE-LRM optical transceivers and the mode-conditioning patch cables.

MAIN SWITCHCisco Catalyst 3850-24XS

Cisco Catalyst 3850-24XS

Cisco’s 3850 series is comprised of more than 30 different models. Most models are fixed configuration but some accept a range of plugins, typically to add a variety of high-speed (10G and 40G) interfaces. The 3850-24XS includes 24 SFP+ ports capable of running at 1G or 10G. Addition uplinks can be added using a 4x or 8x 10G module or a 2 x 40G QSFP+ module.

The Catalyst 3850 supports a range of AOC (Active Optical Cable) and DAC (Direct Attached Copper) interconnect cables lengths as well as following 10G SFP+ transceiver options.

Table 1 SFP+ Optical Transceivers

SFP-10G-SR SFP+ SR, 300m/OM3, 400m/OM4, duplex LC
SFP-10G-LR SFP+ LR, 10km, SMF, duplex LC
SFP-10G-LRM-FL SFP+ LRM, 220 OM1 MMF, duplex LC
SFP-10G-ER  SFP+ ER, 40km, SMF, duplex LC
SFP-10G-ZR SFP+ ZR, 80km, SMF, duplex LC
SFP-10G-T SFP+ T, 30m, CAT7, RJ45
SFP-10GBX-UD-PAIR SFP+ BX, 10km, SMF, simplex LC



SFP+ BX, 40km, SMF, simplex LC


REMOTE SWITCHCisco Meraki MS410-16

Cisco Meraki MS410-16

As stated earlier, this application is on a tight budget. Therefore, a switch from Cisco’s Meraki MS series has been selected fort the remote site.

The Meraki line is designed to minimize both capital outlays and the time required to operate and maintain the units. It utilizes and intuitive cloud-based user interface, allowing operators to quickly get the devices up and running. Maintenance and debugging activities are also great streamlined but getting away from the tedious Command Line Interface (CLI) that is often required with other switches.

The MS410-16 is primarily designed for aggregation of multiple 1G fiber links into its dual 10GbE SFP+ uplinks. It includes 16 SFP 1GbE slots and 2 SFP+ 10G slots. Supported 1G SFP and 10G SFP+ modules are listed below.

Table 2 SFP+ 10G Optical Transceivers

MA-SFP-10G-SR SFP+ SR, 300m/OM3, 400m/OM4, duplex LC
MA-SFP-10G-LR SFP+ LR, 10km, SMF, duplex LC
MA-SFP-10G-LRM-FL SFP+ LRM, 220 OM1 MMF, duplex LC


Table 3 SFP+ 1G Optical Transceivers

MA-SFP-1GB-SX SFP SX, 550m/OM2, 300m/OM1, duplex LC
MA-SFP-1GB-LX10 SFP LX, 10km, SMF, duplex LC





FluxLight Cisco-compatible SFP-10G-LRM-FL

FluxLight’s SFP-10G-LRM-FL is a Cisco® compatible 10GBASE-LRM SFP+ Optical Transceiver and is factory pre-programmed with all the necessary configuration data for seamless Cisco network equipment integration. These transceivers perform identically to Cisco® original transceivers, are 100% compatible and support full hot swapping operation. The SFP-10G-LRM-FL is 100% SFP+ MSA (Multi-Source Agreement) compliant.


FluxLight Meraki-compatible MA-SFP-10G-LRM-FL

The MA-SFP-10G-LRM-FL SFP+ optical transceiver from FluxLight is 100% equivalent to the Cisco-Meraki transceiver of the same part number. It is fully compatible with the Meraki 410 switch described in this note. Like all FluxLight optical transceivers, both the SFP-10G-LRM-FL and the MA-SFP-10G-LRM-FL are backed by FluxLight’s limited lifetime warranty.


A mode-conditioning patch cable adapts single-mode launched signal to a multi-mode fiber. It does this by using a centerline offset splice on the transmit side. This is a the single-mode to multi-mode transmission direction. No special adaptation is required in the other direction.

The picture below shows a typical mode-conditioning fiber jumper. The centerline offset splice ins in the black tube seen in the middle of the jumper.

mode-conditioning fiber jumper


Installation of this configuration involves plugging two 10GBASE-LRM optical transceivers into each of the switches. The MA-SFP-10G-LRM-FL into the Meraki MS410 and the SFP-10G-LRM-FL into the Cisco 3850.  Next, a mode conditioning patch cable is used on the transmit side of each LRM transceiver to adapt the single-mode launch to the existing multi-mode trunk fiber. Finally, the mode-conditioning jumper is connected to the existing FDDI-grade fiber. This completes the connection.

10GBASE-LRM Application over existing FDDI Fiber

This note demonstrated the use of the 10GBASE-LRM on Cisco and Meraki equipment. FluxLight offers 10GBASE-LRM transceivers for many other vendors as you can see listed on this webpage. FluxLight is continually expanding its compatibility list so, if you don’t see an OEM listed for which you would like compatibility, please contact us at: 888-874-7574 or

 Platform Support for the SFP-10G-LRM-FL

Aggregation Services Routers     Firewalls
Cisco ASR9000 Cisco ASAHIGH
Cisco ASR901 Cisco FPRHIGH
Cisco ASR903 Cisco FPRMID
Cisco ASR920 Cisco FPRUHI
Blade Switches Integrated Services Routers
Carrier Routing System ME Ethernet Switches
Catalyst Switches Cisco C4KTOR
Cisco 9200 Cisco C6500
Cisco 9200L Cisco ME3600X
Cisco C2360 Cisco ME3800X
Cisco C2960S Network Convergence System
Cisco C2960X Cisco IE5000
Cisco C2960XR Cisco NCS4200
Cisco C3560 Nexus
Cisco C3560CX Cisco N3000
Cisco C3560X Cisco N7000
Cisco C3650 Cisco N9200
Cisco C3750 Cisco N9300
Cisco C3750X Cisco N9500
Cisco C3850 Unified Computing System
Cisco C4500 Wireless Controller
Cisco C4500X Cisco AIRCTI2
Cisco C4900 Cisco AIRCTU
Cisco C4900M  
Cisco C6000  
Cisco C6800  
Cisco C9300  
Cisco C9400  
Cisco C9500  





FluxLight's Full Line of 10GBase-LRM Optical Transceivers


Alcatel-Lucent iSFP-10G-LRM-FL
Arista SFP-10G-LRM-A-FL
Aruba J9152D-FL
Brocade-Foundry 10G-SFPP-LRM-FL
Cisco SFP-10G-LRM-FL
Dell 407-BBON-FL
Enterasys 10GB-LRM-SFPP-FL
Extreme 10303-FL
H3C SFP-XG-LX220-MM1310-FL
HP J9152A-FL
Juniper EX-SFP-10GE-LRM-FL
Netgear AXM763-FL




The following is a list of Finisar Corporation patents Fluxlight has licensed. This licensure recognizes and compensates Finisar for their intellectual property. The SFP-10G-LRM-FL, like all Fluxlight optical transceivers, is covered by this license agreement. Therefore, Fluxlight customers can rest assured that all products purchased are fully licensed, and our customers are under no potential liability that may ensue from the use of unlicensed optical transceiver products.

U.S. Patent Numbers: 7,184,668 (System and method of protecting eye safety during operation of a fiber optic transceiver), 7,079,775 (Integrated memory mapped controller circuit for fiber optics transceiver), 6,957,021 (Optical transceiver with memory mapped locations), 7,058,310 (System and method for protecting eye safety during operation of a fiber optic transceiver), 6,952,531 (System and method for protecting eye safety during operation of a fiber optic transceiver), 7,162,160 (System and method for protecting eye safety during operation of a fiber optic transceiver), 7,050,720 (Integrated memory mapped controller circuit for fiber optics transceiver)

Original Equipment Manufacturer (OEM) names may be registered trademarks of the respective OEM, and the OEM has neither authorized nor sponsored the use of its trademark or trade name. All OEM names are used for cross reference/comparative purposes only.

Limited Lifetime Warranty

Fluxlight provides a non-transferable serviceable lifetime warranty to the purchaser of Fluxlight hardware product purchased from Fluxlight or an authorized Fluxlight reseller. Fluxlight warrants to the original end customer of its products specified below that its products are free from defects in material and workmanship affecting form, fit, and function. All such products sold will work in the application specified at the time of purchase and will meet the datasheet specifications as found on Fluxlight’s Web site or otherwise provided by Fluxlight. Any claim alleging that any product fails to conform to the foregoing may be made only by the customer who purchased such product and only while such customer owns such product and while the product remains within the serviceable lifetime period. Fluxlight, at its option, will repair, replace, or provide a credit or refund of either the original purchase price or fair market value, whichever is lower, of any product that is determined by Fluxlight to be defective. Some systems that use Fluxlight products may be allowed to operate outside of the system manufacturer’s published settings and Fluxlight does not cover failure in these circumstances. This warranty covers only defects arising under normal use and do not include malfunctions or failures resulting from misuse, abuse, neglect, alteration, problems with electrical power, usage not in accordance with product instructions, acts of nature, or improper installation or improper operation or repairs made by anyone other than Fluxlight or an Fluxlight authorized third-party service provider. Fluxlight reserves the right to substitute functionally equivalent new or serviceable used parts.

Form more information please see our warranty page.