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100G QSFP28 Lr4 10km

100G QSFP28 Lr4 10km

100Gb/s QSFP28 LR4 Optical Transceiver

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Product Details

100Gb/s QSFP28 LR4 Optical Transceive


The central wavelengths of the 4 LAN WDM channels are 1295.56, 1300.05, 1304.58 and 1309.14 nm as members of the LAN WDM wavelength grid defined in IEEE 802.3ba. The high performance cooled LAN WDM EA-DFB transmitters and high sensitivity PIN receivers provide superior performance for 100Gigabit Ethernet applications up to 10km links and compliant to optical interface with IEEE802.3ba Clause 88 100GBASE-LR4 requirements. The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP+ Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference. Functional Description The transceiver module receives 4 channels of 25Gb/s electrical data, which are processed by a 4-channel Clock and Data Recovery (CDR) IC that reshapes and reduces the jitter of each electrical signal. Subsequently, each of 4 EML laser driver IC's converts one of the 4 channels of electrical signals to an optical signal that is transmitted from one of the 4 cooled EML lasers which are packaged in the Transmitter Optical Sub-Assembly (TOSA). Each laser launches the optical signal in specific wavelength specified in IEEE802.3ba 100GBASE-LR4 requirements. These 4-lane optical signals will be optically multiplexed into a single fiber by a 4-to-1 optical WDM MUX. The optical output power of each channel is maintained constant by an automatic power control (APC) circuit. The transmitter output can be turned off by TX_DIS hardware signal and/or 2-wire serial interface.


Compliant with 100G Ethernet IEEE802.3bm and 100GBASE-LR4 Standard

Compliant to SFF-8665 (QSFP28 Solution) Revision 1.8

Compliant with QDR/DDR Infiniband data rates

Up to 25.78125Gb/s data rate per wavelength

4 WDM lanes MUX/DEMUX design

Up to 10km transmission on single mode fiber (SMF)

Operating case temperature: 0~70oC

Maximum power consumption 3.5W

LC duplex connector

RoHS compliant

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