QSFP56-200G-LR4光模块是4通道全双工收发一体模块，采用QSFP56可热插拔封装，每通道传输速率最高可达53.125Gbps（50G PAM4），双LC光口，功耗小于7.5W，中心波长分别为LWDM4，符合IEEE 802.3bs 200GBASE-LR4以太网传输协议，符合RoHS环保标准（无铅）。
工作原理
200G QSFP56 LR4光模块采用50G PAM4和制冷型LAN-WDM EML技术，内置一对4通道LWDM MUX和DEMUX，中心波长分别为1295.56nm、1300.05nm、1304.58nm和1309.14nm，在开启FEC前提下，使用一对单模光纤（MMF）传输，距离最高可达10km或20km。
200G QSFP56 LR4光模块采用50G PAM4和制冷型LAN-WDM EML技术，基于SM单模光纤，传输距离可达10km/20km，光口为双工LC。
● Distance:10km over SMF
● Data Rate:200Gb/s
● Low End Case Temperature (°C):0
● High End Case Temperature (°C):70
● Diagnostics:Digital
● Transmitter:DML TOSA
● Receiver:Pin
● Voltage Supply:3.3V
● Connector:LC
● Wavelength:LAN-WDM Band
● Size (W x L (with pull tab) x H): 18.4 mm x 72 (122) mm x 8.5 mm (not including pull tab)
● Hot Z-Pluggable to 38-pin electrical connector
● Latching mechanism: Pull tab
● Management Interface: Two-wire common management interface
● Environment: RoHS10 (2011/65/EU + 2015/863) compliant
Application
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For data center, enterprise, and telecom applications
跳线选择：LC/PC-LC/PC-SM-DX-XXM
