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Description
400GBASE-LR4 QSFP-DD supports a single-channel bandwidth of up to 400Gbps, using a dual-LC connector, and can transmit up to 10 kilometers through parallel single-mode fiber. The module uses a 4-channel compact double-density (QSFP-DD) package, equipped with 4 CWDM4 channels and 4-level pulse width modulation (PAM4) encoding. The optical receiver uses a wavelength range of 1271 to 1331nm, and meets the Multi-Source Protocol (MSA) standard. The LR4 module is an ideal choice for data centers and InfiniBand networks for high-speed data transmission.
Features
Compliant with 100G Lambda MSA:
400GBASE-LR4-10 optical interface
Compliant with IEEE 802.3bs standard:
400GAUI-8 electrical interface
Compliant with QSFP-DD MSA HW Rev 5.1 type 2 housing with duplex LC connector
Compliant with QSFP-DD CMIS Rev 5.0
Operating distance at engineering link of up to 10km
Maximum power consumption 9 W
Case operating temperature 0°C to 70°C
Two wire serial Interface with digital diagnostic monitoring
Complies with EU Directive 2011/65/EU (RoHS compliant)
Class 1 Laser
Applications
400GBase-LR4 Ethernet
Switches and Routers
Data centers Interconnect
Optical Specifications
Parameter | Symbol | Min. | Typical | Max. | Unit | Notes |
Wavelength L0 | λC0 | 1264.5 | 1271 | 1277.5 | nm | |
Wavelength L1 | λC1 | 1284.5 | 1291 | 1297.5 | nm | |
Wavelength L2 | λC2 | 1304.5 | 1311 | 1317.5 | nm | |
Wavelength L3 | λC3 | 1324.5 | 1331 | 1337.5 | nm | |
Side Mode Suppression Ratio | SMSR | 30 | - | - | dB | |
Average Launch Power, each lane | AOPL | -2.7 | - | 5.1 | dBm | 1 |
Outer Optical Modulation Amplitude (OMAouter), each lane | TOMA | - | - | 4.4 | dBm | |
Outer Optical Modulation Amplitude (OMAouter) each lane: for TDECQ <1.4dB for 1.4≤TDECQ≤3.4dB | TOMA | 0.3-1.1+TDECQ | ||||
Difference in launch power between any two lanes (OMAouter) | DP | - | - | 4 | dB | |
Transmitter and Dispersion Eye Closure for PAM4 (TDECQ), each lane | TDECQ | - | - | 3.9 | dB | |
Transmitter eye closure for PAM4(TECQ) | TECQ | - | - | 3.9 | dB | |
| TDECQ - TECQ | | - | - | - | 2.5 | dB | |
Over/under-shoot | - | - | - | 25 | % | |
Transmitter peak-to-peak power | - | - | - | 5.2 | dBm | |
Average Launch Power of OFF Transmitter, each lane | TOFF | - | - | -16 | dBm | |
Extinction Ratio, each lane | ER | 3.5 | - | - | dB | |
Transmitter transition time | - | - | - | 17 | ps | |
RIN15.6OMA | RIN | - | - | -136 | dB/Hz | |
Optical Return Loss Tolerance | ORL | - | - | 15.6 | dB | |
Transmitter Reflectance | TR | - | - | -26 | dB |
Receiver Optical Specifications
Parameter | Symbol | Min. | Typical | Max. | Unit | Notes |
Wavelength L0 | λC0 | 1264.5 | 1271 | 1277.5 | nm | |
Wavelength L1 | λC1 | 1284.5 | 1291 | 1297.5 | nm | |
Wavelength L2 | λC2 | 1304.5 | 1311 | 1317.5 | nm | |
Wavelength L3 | λC3 | 1324.5 | 1331 | 1337.5 | nm | |
Damage Threshold, each lane | AOPD | 6.1 | - | - | dBm | |
Average Receive Power, each lane | AOPR | -9 | - | 5.1 | dBm | 1 |
Receive Power (OMAouter), each lane | OMAR | - | - | 4.4 | dBm | |
Difference in receive power between any two lanes (OMAouter) | DR | - | - | 4.3 | dB | |
Receiver Reflectance | RR | - | - | -26 | dB | |
Receiver Sensitivity (OMAouter), each lane | SOMA | -6.8 -8.2+TECQ | dBm | |||
Stressed Receiver Sensitivity (OMAouter), each lane | SRS | - | - | -4.3 | dBm | |
Conditions of stressed receiver sensitivity test | ||||||
Stressed eye closure for PAM4 (SECQ) | - | - | 3.9 | - | dB | |
OMAouter of each aggressor lane | - | - | -0.4 | - | dBm |
Note 1: Average receive power, each lane (min) is informative and not the principal indicator of signal strength.
Ordering Information
Part No. | Application | Data Rate | Laser Source | Fiber Type |
VV-QDD-LR4 | 400GBASE-LR4 | 400GB Ethernet | EML | Single Mode Fiber |
Email: sales@veivot.com Web: www.veivot.com