SR, LR, LRM, ER and ZR are relatively common types in the 10G IEEE standard, but what’s the difference between10g sfp SR, LR, LRM, ER and ZR? To figure out, we need to know the meaning of them first.
In fiber optic communications, SR LR LRM ER and ZR are terms that stand for 10g modules transmission distance. SR means short range, LR means long range, LRM means long reach multimode , ER means extened range and ZR means ze best range. Here is the details of these five types of 10g modules.
SFP-10G-SR
SFP-10G-SR(Short Range) is a very common sfp module, which can links up to 300 meters in multimode fiber. In general, SR modules are almost multimode and operating in 850nm wavelength. These modules are hot-plugged can be switched out easily.
SFP-10G-LR
SFP-10G-LR(Long Range)is used for long-range data transmission, such as large compuses or Metro Area Network. It can be either single mode or multimode and has the advantages of low cost, low power consumption, small size and high density.
SFP-10G-LRM
SFP-10G-LRM(Long Reach Multimode) conforms to the standard of 10gbase-lrm Ethernet, apply both traditional and new multimode optical fibers. It links with a minimum support of 220 meters on the installed 500mhz.km multimode fiber and link with a minimum support of 300 meters on the selected multimode fiber.
SFP-10G-ER
SFP-10G-ER(Extened Range) supports transmission distance of up to 40 kilometers on standard Single-Mode Fiber. It is widely applied in data center and enterprise industrial park .
SFP-10G-ZR
SFP-10G-ZR(Ze Best Range) supports transmission distance of up to 80 kilometers with 1550nm waverlength on standard Single-Mode Fiber. It compliant with SFF-8431, SFF-8432 and IEE802.3ae standard. It can be used for data networking/optical network applications.
Refer to the following table to compare clearly:
PN | Distance | Wavelength | Interface | Temp. | DDM |
SFP-10G-SR | 300m | 850nm | Duplex LC | 0-70℃ | D |
SFP-10G-LR | 10km | 1310nm | Duplex LC | 0-70℃ | D |
SFP-10G-LRM | 220m | 1310nm | Duplex LC | 0-70℃ | D |
SFP-10G-ER | 40km | 1550nm | Duplex LC | 0-70℃ | D |
SFP-10G-ZR | 70km-80km | 1550nm | Duplex LC | 0-70℃ | D |
Sopto is a top sfp modules manufacturer in the optical communication industry and can provide the above five modules, meanwhile sopto’s modules can compatible with Cisco, HUIWEI and other brands. You can always choose your suitable modules according to your actual transmission distance demand at sopto.
Tags :10G SFP , SFP modules
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