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QSFP28 100GE/OTU4 DUAL RATE LR4 10Km

By C-LIGHT Marketing 丨 Jun 27, 2025
Table of Contents

    C-LIGHT QSFP28 100GE/OTU4 Dual-Rate LR4 10km Optical Transceiver enables carrier-class 100G connectivity over 10km single-mode fiber, supporting both 100Gb Ethernet (IEEE 802.3ba LR4) and OTU4 transport,Utilizing 4×25G PAM4 modulation with CWDM wavelengths 1271/1291/1311/1331nm) this module delivers 106.25Gbps bandwidth while featuring ≤ 3.5W power efficiency, industrial temperature tolerance (0°C to +70°C), and real-time digital diagnostics. It is engineered for OTN backbone networks and hyperscale data center interconnects, ensuring seamless integration in multi-vendor environments.


    Product Features:

    QSFP28-100G-LR4-10Km●Hot-pluggable QSFP28 form factor

    ●Supports 103.1Gb/s and OTU4 112Gb/s aggregate bit rate

    ●Power dissipation < 3.5W

    ●RoHS-6 compliant

    ●Commercial case temperature range of 0°C to 70°C

    ●Single 3.3V power supply

    ●Maximum link length of 10km on Single Mode Fiber (SMF)

    ●4x28Gb/s DFB-based LAN-WDM transmitter

    ●4x28G retimed electrical interface

    ●Duplex LC receptacles

    ●I2C management interface


    Applications
    This dual-rate optical transceiver supports both 100 Gigabit Ethernet (100GE) and OTU4 (112G) protocols with 10km reach. Key applications include:

    ‌●Data Center Interconnects‌ 

    ‌●Telecom Transport Networks‌ 

    ‌●5G Backhaul‌ 

    ‌●Enterprise Networks‌ 

    ‌●‌Cloud Infrastructure‌


    Data Sheet
    QSFP28-100G-OTU4-DUAL-RATE-LR4-10Km.pdf


    100G QSFP28 100GE/OTU4 Dual Rate LR4 10km FAQ

    Q1: What is a 100G QSFP28 100GE/OTU4 Dual Rate LR4 10km transceiver?

    A 100G QSFP28 100GE/OTU4 Dual Rate LR4 transceiver is a hot-pluggable optical module that supports both 100 Gigabit Ethernet (100GE) and OTU4 transport. It delivers up to 10km transmission over single-mode fiber, making it ideal for telecom and data center applications.

    Key features include:

    • Dual-rate 100GE and OTU4 support

    • Up to 10km over SMF

    • 4×25G LAN-WDM transmission

    • Duplex LC connector

    • QSFP28 hot-pluggable form factor

    It is ideal for OTN transport, DCI, 5G backhaul, and enterprise networks.

    Q2: How does a 100G QSFP28 Dual Rate LR4 transceiver work?

    The module converts electrical signals into 4×25G optical channels using LAN-WDM technology over duplex single-mode fiber. It supports both Ethernet and OTU4 protocols, allowing one module to operate across multiple network environments.

    Q3: What are the key features of the C-LIGHT 100G QSFP28 Dual Rate LR4 10km transceiver?

    The C-LIGHT module is designed for carrier-grade 100G optical transmission.

    Key features include:

    • 100GE and OTU4 dual-rate operation

    • Up to 10km transmission

    • 4×28G DFB LAN-WDM lasers

    • Duplex LC interface

    • Power consumption <3.5W

    • Digital Diagnostic Monitoring (DDM)

    These features provide reliable and efficient optical connectivity.

    Q4: What are the advantages of a dual-rate 100GE/OTU4 transceiver?

    Compared with single-protocol modules, it offers:

    • Supports both Ethernet and OTN

    • Lower inventory costs

    • Simplified network deployment

    • Broad equipment compatibility

    • Easy network upgrades

    It is an efficient solution for converged transport networks.

    Q5: Where are 100G QSFP28 Dual Rate LR4 transceivers commonly used?

    These modules are widely deployed in medium-distance optical networks.

    Typical applications include:

    • OTN backbone networks

    • Data Center Interconnect (DCI)

    • Telecom transport networks

    • 5G backhaul

    • Cloud infrastructure

    • Enterprise backbone networks

    These applications require reliable 100G transmission with Ethernet and OTN compatibility.

    Q6: Why choose a dual-rate 100GE/OTU4 module instead of a standard 100G LR4?

    A dual-rate module supports both 100GE and OTU4, allowing the same transceiver to be used across packet and transport networks.

    Its advantages include:

    • Multi-protocol support

    • Lower deployment costs

    • Flexible network migration

    • Reduced spare inventory

    • Excellent interoperability

    It is ideal for carrier and enterprise optical networks.

    Q7: How do you choose the right 100G QSFP28 LR4 transceiver?

    When selecting a 100G LR4 module, consider:

    • Protocol compatibility

    • Transmission distance

    • Fiber type

    • Switch compatibility

    • Power consumption

    • Operating temperature

    Choosing the right module ensures reliable optical performance and long-term scalability.

    Q8: Why choose the C-LIGHT 100G QSFP28 100GE/OTU4 Dual Rate LR4 10km transceiver?

    The C-LIGHT 100G QSFP28 Dual Rate LR4 combines Ethernet and OTN compatibility, low power consumption, and reliable 10km transmission in a compact QSFP28 package.

    It provides:

    • 100GE and OTU4 dual-rate support

    • Up to 10km over SMF

    • LAN-WDM technology

    • Power consumption <3.5W

    • Broad platform compatibility

    It is an ideal solution for OTN backbone networks, DCI, telecom transport, cloud infrastructure, and 5G backhaul.

    For any questions, please contact us by email or WhatsApp.

    Email: sales@c-light.com

    WhatsApp: +86 132 6656 7067

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