Introduction

In this article we will discuss about the 10GBASE-LRM Ethernet standard and its optical transceivers and the brands offer which offers you these and their basic solutions, So you can have a basic understanding for 10GBASE-LRM technology to understand the basic solutions to 10GBASE-LRM. Also, you can check the compatible Cozlink transceivers to get compatible and cost-effective products.

What is the 10GBASE-LRM technology?

10GBASE-LRM, (Long Reach Multimode) originally specified in IEEE 802.3aq is a port type for multimode fiber and uses 1310 nm lasers. Its Physical Coding Sublayer 64b/66b PCS is defined in IEEE 802.3 Clause 49 and its Physical Medium Dependent PMD in Clause 68. It delivers serialized data at a line rate of 10.3125 Gbit/s. 10GBASE-LRM allows distances up to 220 meters (720 ft) on FDDI-grade multimode fiber and the same 220m maximum reach on OM1, OM2 and OM3 fiber types. 10GBASE-LRM reach is not quite as far as the older 10GBASE-LX4 standard. To ensure that specifications are met over FDDI-grade, OM1 and OM2 fibers, the transmitter should be coupled through a mode conditioning patch cord. No mode conditioning patch cord is required for applications over OM3 or OM4. Some 10GBASE-LRM transceivers also allow distances up to 300 meters (980 ft) on standard single-mode fiber (SMF, G.652), however this is not part of the IEEE or MSA specification. 10GBASE-LRM uses electronic dispersion compensation (EDC) for receive equalization.

10GBASE-LRM compatible brands:

 Cozlink products and services: a convenient shopping platform, custom Logo, packaging, etc.

What is the difference between 10GBASE-LRM & 10GBASE-SR-X?

The 10GBASE-LRM Module supports link lengths of 220m on standard Fiber Distributed Data Interface (FDDI) grade multimode fiber (MMF). To make sure that specifications are met over FDDI-grade, OM1 and OM2 fibers, the transmitter should be coupled through a mode conditioning patch cord. No mode conditioning patch cord is required for applications over OM3 or OM4. 

The SFP-10G-SR-X is a multirate* 10GBASE-SR, 10GBASE-SW and OTU2/OTU2e module for extended operating temperature range. It supports a link length of 26m on standard Fiber Distributed Data Interface (FDDI)-grade multimode fiber (MMF). Using 2000MHz*km MMF (OM3), up to 300m link lengths are possible. Using 4700MHz*km MMF (OM4), up to 400m link lengths are possible.

Conclusion

Due to the different brand is only applicable to their own devices, makes third-party compatible optical transceiver is very important, it ensures that two different brands of equipment are compatible with each other. Cozlink transceiver has high performance; it can fully compatible with different brands, and Cozlink price is much less than the original manufacturer, so it is a perfect third-party compatible optical transceiver for 10GBASE-LRM Ethernet standard solution. Apart from transceivers, Cozlink also provides all kinds of patch cords, pigtails, high speed cables for your choice.