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SFP-10G-LRM optical module is an optical module that conforms to 10GBaseLRM 10 Gigabit Ethernet specification. It has the characteristics of low cost, low power and miniaturization, and is widely used in practical applications. Next, easy Sky Optical Communication (ETU-LINK) will tell you more about these two optical modules.

Introduction of SFP-10G-LRM Optical Module

Basic parameters: 10g SFP+ 850nm 220m LC DDM

10GBASE-LRM is a 10 Gigabit Ethernet specification in the IEEE802.3aq standard published in 2006, in which "LRM" is "Long Reach Multimode", which refers to the length extension multipoint mode. The SFP-10G-LRM optical module that conforms to this specification is mainly used for 260m short-distance LAN connection, and another SFP-10G-LRM2 optical module is the upgraded version of the SFP-10G-LRM optical module, which can be used to transmit 2km short-distance LAN connection.

Introduction of SFP-10G-LR Optical Module

Basic parameter 10G 1310nm 10/20km LC DDM

The SFP-10G-LR optical module conforms to the 10GBase-LR specification, and the maximum transmission distance on the single-mode fiber with the wavelength of 1310nm is 2m to 10km. In fact, the maximum transmission distance can reach 25km, which has the characteristics of miniaturization, low power consumption and long transmission distance.

Advantages of SFP-10G-LRM Optical Module

SFP-10G-LRM optical module has a maximum transmission distance of 260m in multimode fiber with 1310nm wavelength, supports 10GBASE-LRM Ethernet standard, is suitable for FDDI network and 10G data communication, its low power consumption and excellent EMI performance fully meet MSA SFF-8431 standard; excellent unlock ring fully conforms to MSA SFF-8432 standard, this optical module also uses independent structure design, and also supports digital diagnostic function realized by MCU.

The birth of SFP-10G-LRM Optical Module

Both 10GBASE-SR and 10GBASE-LX4 can support 10GE port and multimode fiber, and the corresponding SFP-10G-SR optical module and SFP-10G-LX4 optical module meet these two specifications respectively. Why is there the birth of SFP-10G-LRM optical module? The reason is that the transmission distance of 10GBASE-LRM is longer than that of 10GBASE-SR, and compared with 10GBASE-LX4 specification, the transmission distance is lower, but it has the advantages of lower cost and lower power consumption, while 10GBASE-LRM meets the comprehensive needs of transmission distance and cost.

Characteristics of SFP-10G-LRM Optical Module

1. Use the existing 10G Ethernet serial LAN PHY coding sublayer

2. The bit error rate is no more than 10-12

3. Multimode fiber supporting 62.5 μ m core: including 160/500MHz-km and 200/500MHz-km (OM1)

4. Multimode fiber supporting 50 μ m core: including 400/400MHz-km, 500/500MHz-km (OM2) and 1500/500MHz-km (OM3)

5. A minimum link of 220m is supported on the installed 500MHz.km multimode fiber and a minimum of 300m on the selected multimode fiber.

Application of SFP-10G-LRM Optical Module

The SFP-10G-LRM optical module can achieve a transmission distance of 300m on the installed OM1 and OM2 multimode fibers. The implementation of this application overcomes the following difficulties:

1. The optical fiber bandwidth of 10GBASE-LRM is very low, which can not provide enough bandwidth for 10Gbps serial NRZ transmission.

2. in the statistical distribution of optical fiber, low-bandwidth optical fiber and high-bandwidth optical fiber account for a large proportion respectively.

3. For a specific optical fiber link, the static impulse response is related to the laser emission, connector and link length. In addition, the pulse response fluctuates with the mechanical disturbance of the optical fiber.

4. Transmission problems caused by noise.

The above is the difference between SFP-10G-LRM optical module and SFP-10G-LR optical module; Yi Tianguang communication can provide users with comprehensive network system solutions to help users build a low-cost, cost-effective and easy-to-maintain network system, and the optical module has strong stability and has been highly recognized by the majority of users.

Related recommendation: 100g QSFP28 optical module

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