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SFP光模块

SFP光模块

什么是SFP光模块?

SFP光模块产品是出现的比较晚的光模块,但也是当前应用最广泛的光模块产品。

SFP光模块概念:

SFP(Small Form-factor Pluggables)很多人都把其理解为GBIC的升级版本。SFP光模块体积比GBIC光模块至少减少一半,可以在相同面板上配置多出一倍以上的端口数量。由于SFP模块在功能上与GBIC基本一致,因此,也被有些交换机厂商称为小型化GBIC(Mini-GBIC)。

SFP光模块的发展:

GBIC与SFF在光模块发展过程中都曾经有过非常非凡的历史,随着网络的快速发展,它们也逐渐被SFP光模块取代。

在许多网络资料里,包括一些公司的培训资料都把SFP看作是GBIC的发展或演变,个人认为SFP更准确说是SFF与GBIC光模块的发展,因为SFF与GBIC是1X9光模块之后两个方向发展的产品,都有自己的优点:小型化与热插拔。

SFP光模块继承了GBIC的热插拔特性,也借鉴了SFF小型化的优势。采用LC头,其体积仅为GBIC模块的1/2到1/3,  极大的增加了网络设备的端口密度,适应了网络迅猛发展的趋势,因此得到了最广范的应用,目前主要的设备厂商,无一例外摒弃的GBIC产品,只采用SFP光模块产品。由于采用了统一的标准,各厂家的SFP产品可以兼容,SFP产品可作为一种单独的网络设备采购。

虽然目前已经出现了许多更高技术,更新的光模块产品,但SFP光模块依然会继续存在很长时间。在SFP之后,光模块的发展主要是向着更高速率的发展,现在已经出现了10G,40G,100G等光模块。其中SFP+光模块相信会是SFP之后被广泛应用的一代产品。

SFP-1250M/GE/OC24-1310NM

SFP-1250M/GE/OC24-1310NM

Dual data-rate of 1.25Gbps/1.063Gbps operation
1310nm laser  for 5~60km transmission with SMF
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibrationor External Calibration
Compatible with RoHS

SFP-1250M/GE/OC24-1550NM

SFP-1250M/GE/OC24-1550NM

Dual data-rate of 1.25Gbps/1.063Gbps operation
1550nm DFB laser and PIN photodetector for 40~200km transmission
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibration or External Calibration

SFP-1250M/GE/OC24-850NM

SFP-1250M/GE/OC24-850NM

Up to GE/OC24/1.25Gbps data-rate
850nm VCSEL laser and PIN photodetector;Compatible with RoHS
500m transmission with 50/125µm MMF
300m transmission with 62.5/125µm MMF

SFP-155M/FE/OC3/STM1-1310NM-MMF

SFP-155M/FE/OC3/STM1-1310NM-MMF

Up to 155Mbps data-rate
1310nm FP(LED)laser and PIN photodetector for 2km transmission with MMF
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibrationor External Calibration
Compatible with RoHS

SFP-155M/FE/OC3/STM1-1310NM-SMF

SFP-155M/FE/OC3/STM1-1310NM-SMF

Up to 155Mbps data-rate
1310nm laser  for 2km transmission with MMF
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibrationor External Calibration
Compatible with RoHS

SFP-155M/FE/OC3/STM1-1550NM

SFP-155M/FE/OC3/STM1-1550NM

Up to 155Mbps data-rate
1550nm DFB laser and PIN photodetector for 80km transmission
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibration or External Calibration

SFP-155M/FE/OC3/STM1-850NM

SFP-155M/FE/OC3/STM1-850NM

Up to 155Mbps data-rate
850nm VCSEL laser and PIN photodetector
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibration or External Calibration

SFP-2488M/OC48/STM16-1310NM

SFP-2488M/OC48/STM16-1310NM

Up to 2.488Gb/s  data links
1310nm  laser and photodetector for 2km~40KM transmission
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibrationor External Calibration
Compatible with RoHS

SFP-2488M/OC48/STM16-1550NM

SFP-2488M/OC48/STM16-1550NM

Up to 2.488Gb/s  data links
1550nm DFB laser and PIN photodetector for 40~200km transmission
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibration or External Calibration

SFP-2488M/OC48/STM16-850NM

SFP-2488M/OC48/STM16-850NM

Up to 2.488Gb/s bi-directional data links
850nm VCSEL laser and PIN photodetector
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibration or External Calibration
300m transmission with 50/125µm MMF

SFP-4250M-1310NM

SFP-4250M-1310NM

Supports 1.0625/2.125/4.25Gb/s Fibre Channel Operation
Gigabit Ethernet compatible
1310nm  laser and photodetector for 2km~30KM transmission
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibrationor External Calibration

SFP-4250M-1550NM

SFP-4250M-1550NM

Supports 1.0625/2.125/4.25Gb/s Fibre Channel Operation
Gigabit Ethernet compatible
1550nm DFB laser and PIN photodetector for 40km transmission
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibration or External Calibration

SFP-4250M-850NM

SFP-4250M-850NM

Up to 500m on 50/125µm MMF, 300m on 62.5/125µm MMF
Supports 1.0625/2.125/4.25Gb/s Fibre Channel Operation
Gigabit Ethernet compatible
850nm VCSEL laser transmitter
Digital Diagnostic SFF-8472 compliant

SFP-622M/OC12/STM4-1310NM-MMF

SFP-622M/OC12/STM4-1310NM-MMF

Up to 622Mbps data-rate
1310nm FP(LED)laser and PIN photodetector for 2km transmission with MMF
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibrationor External Calibration
Compatible with RoHS

SFP-622M/OC12/STM4-1310NM-SMF

SFP-622M/OC12/STM4-1310NM-SMF

Up to 155Mbps data-rate
1310nm laser  for 2~60km transmission with SMF
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibrationor External Calibration
Compatible with RoHS