400G QSFP-DD LR4 10km LC Optical Transceiver
The 400G QSFP-DD LR4 transceiver is a high-performance optical module designed for long-distance 400 Gigabit Ethernet applications. It leverages PAM4 modulation and CWDM lasers to achieve 10km transmission over single-mode fiber (SMF), complying with IEEE 802.3bs and QSFP-DD MSA standards. Featuring dual LC connectors with a 12W max power consumption, ensuring energy-efficient operation in data center interconnects and metro networks.
Applications:
Data center interconnects between remote sites.
5G fronthaul/midhaul networks requiring high-bandwidth, low-latency links.
Enterprise and cloud service provider infrastructures scaling to 400G.
RoHS compliant and engineered for future-proof networking, this transceiver enables seamless migration to next-generation 400G architectures.
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Compliant with 100G Lambda MSA:
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400GBASE-LR4-10 optical interface
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Compliant with IEEE 802.3bs standard:
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400GAUI-8 electrical interface
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Compliant with QSFP-DD MSA HW Rev 5.1
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type 2 housing with duplex LC connector
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Compliant with QSFP-DD CMIS Rev 4.0
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Operating distance at engineering link of up to 10km
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Maximum power consumption 10 W
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Case operating temperature 0°C to 70°C
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Two wire serial Interface with digital diagnostic monitoring
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Complies with EU Directive 2011/65/EU(RoHS compliant)
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Class 1 Laser
FAQ:
Q1: What is 400G QSFP-DD?
A1: It is a high-density, hot-pluggable optical module interface supporting 400Gbps data rates, featuring 8 electrical channels for enhanced bandwidth.
Q2: What are the main types of 400G QSFP-DD modules?
A2: Common variants include SR8 (short-range), DR4/FR4 (intermediate), LR4/LR8 (long-range), and ER4/ER8 (extended-reach), with transmission distances ranging from 100m to 40km.
Q3: How does OSFP differ from QSFP-DD?
A3: OSFP has a larger form factor and non-compatible electrical interfaces, while QSFP-DD is backward-compatible with QSFP28 modules.
Q4:What encoding scheme does 400G OSFP use?
A4: Data Rate 53.125Gbps (PAM4) per channel(Maximum power consumption 12W), balancing speed and complexity.
Q5: What is the maximum transmission distance for 400G QSFP-DD LR4?
A5: The LR4 variant supports up to 10km over single-mode fiber (SMF) using 4x106Gbps lanes, ideal for 5G and cloud interconnects.
(https://www.etulinktechnology.com/400g-qsfp-dd-lr4-10km-lc-optical-transceiver_p330.html)
Q6: What is the electrical interface of QSFP-DD?
A6: The module converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of CWDM optical signals and multiplexes them into a single channel for 400Gb/s optical transmission.
Q7: Does QSFP-DD support digital diagnostics?
A7: Yes, it includes DDM (Digital Diagnostic Monitoring) per MSA standards, enabling real-time monitoring of temperature, voltage, and optical power.
Q8: What DAC options exist for 400G QSFP-DD?
A8: Available configurations include direct QSFP-DD-to-QSFP-DD, or breakout to 2x200G QSFP56/4x100G QSFP56/8x50G SFP56 for flexible scaling.
Q9: How does OSFP differ from QSFP-DD?
A9: OSFP has a larger form factor and non-compatible electrical interfaces, while QSFP-DD is backward-compatible with QSFP28 modules.