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    Home / Products / Multiplexers / Mux Demux / CWDM Mux Demux / 102634

    8 Channels Passive CWDM Mux Demux 1270-1450nm (Skip 1390, 1410nm), with Monitor and Expansion Port, Dual Fiber, LC Connector, Low Insertion Loss

    Product No: 102634
    7 Reviews
    64 Sold
    US$ 163.90  US$ 199.00
    Series
    Model
    100 in real-time stock, 04 Jun, 2026
    3-Year Warranty 90-Day Returns 1-Year Exchange
    Warranty
    Providing industry-leading limited lifetime warranty.
    Please check our warranty policy for details.
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    Please ensure that the item you're returning is repackaged with all the cords, adapters, and documentation included when you receive it.
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    Add to Cart Bulk Order Quotes 
    1. CWDM multiplexer and demultiplexer 8 channels over dual SMF
2. 100% Passive, no power suppliy and no temperature control required
3. Low insert loss  ≤ 2.4dB 
4. High channel isolation ≥ 30dB
5. Monitor Port for easy troubleshooting
6. Expansion port for expanding with additional wavelengths
7. Easy to be installed on FMU 2-slot 1U 19-inch racks
    See more

    Specifications

    8 Channels Passive CWDM Mux Demux, High-band of 1270-1450nm(skip 1390-1410nm), Dual Fiber Plug-in Module, with Monitor and Expansion Port

     

    The 8CH CWDM Mux Demux contains an 8-channel fiber optic multiplexer and an 8-channel optical demultiplexer. Based on free-space technology, it combines 8-channels of CWDM wavelengths into a composite signal and separates the combined CWDM signal into 8-channels individual wavelengths ​over a pair of single-mode optical fiber. QSFPTEK 8CH CWDM Mux Demux integrated with a monitor port and an expansion port. The 1% monitor port allows easy troubleshooting without downtime and the expansion port supports expanding the capacity of existing fiber infrastructure. QSFPTEK is also devoted to providing maximally low insertion loss, the Max insertion loss is only 2.4dB. And the device is fully passive with no power supply and temperature control requirements. It is also easy to be installed on FMU 2-slot 1U 19-inch racks. It is recognized as an ideal and cost-effective solution for building point-to-point networks with limited scale requirements.

     

    Part Number QT-FMU-C82745EM Installation Method FMU-C Plug-in
    Wavelength 8 Channels 1270nm-1450nm Channel Spacing 20nm
    Channel Passband ±6.5nm Passband Ripple ≤ 0.2dB
    Insertion Loss ≤ 2.4dB Technology TFF (Thin Film Filter)
    Insertion Loss @Monitor Port ≤ 24.3dB Insertion Loss @Expansion Port ≤ 2.4dB
    Directivity ≥45dB Return Loss ≥ 45dB
    Polarization Mode Dispersion (PMD) ≤ 0.1ps Channel Isolation Adjacent ≥30dB
    Non-adjacent ≥ 45dB
    Polarization Dependent Loss (PDL) ≤ 0.3dB Expansion Port Passband 1260nm~1457nm
    Center Wavelength Accuracy ±0.05dB Temperature Operating: -5 to 65°C (23 to 149°F)
    Storage: -40 to 85°C (-40 to 185°F)
    Dimensions (H x W x D) FMU BOX: 44 x 212 x 255mm
    2 Slot 1U Rack: 44 x 442 x 261mm    		 Net Weight FMU BOX: 0.5KG
    2 Slot 1U Rack: 2.5KG
    Quality Testing Program
    Optical Transceivers Testing

    Take a look at our test program to get the reliable and high-performance optical transceivers.

    Quality Certifications

    Features

    • 1. Optimal Optical Performance
      Low optical insertion loss, zero electrical power, no temperature control requirements, and easy installation make the best-in-class operational efficiency.
    • 2. Widely Application Scenarios
      It works with colored transceivers and supports such applications as 1G/10G/25G/40G/100G Ethernet, SDH/SONET, and 8/4/2/1G Fiber Channel.
    • 3. Integrated with MON Port and EXP Port
      The monitor port allows easy troubleshooting without downtime, the expansion port supports capacity expansion.
    • 4. Quality Certifications
      Backed by CE, FCC, ROSH, ISO9001.

    Applications

    Use QT-FMU-C82745EM CWDM Mux Demux for 40G CWDM Networks

    Use QT-FMU-C82745EM CWDM Mux Demux for 40G CWDM Networks

    Product details

    Rich Ports of the 8-Channel CWDM Mux Demux

      

    Label

    Meaning

    Function

    1270, xxxx, ..., 1450 

    8-channel Ports

    Designed for CWDM traffic, from 1270nm to 1450nm. 

    MON

    Monitor Port

    Provides access for link observation and optical power monitoring, allowing engineers to perform testing and troubleshooting conveniently without interrupting live traffic.

    EXP

    Expansion Port

    Designed for future network growth. By connecting this port to the line port of another CWDM Mux Demux with different wavelength channels, users can expand bandwidth and increase fiber capacity without deploying or leasing extra fiber.

    Ports of QT-FMU-C82745EMCWDM Mux Demux

    Basic Principles of CWDM Multiplexing and Demultiplexing

         

    The CWDM Mux Demux essentially combines multiplexing (Mux) and demultiplexing (Demux) functions. At the transmitting end, the Mux combines optical signals of different wavelengths into the same fiber for transmission; at the receiving end, the Demux separates these mixed multi-wavelength signals and restores them to their individual channels. The overall process is one of "merging" at one end and "demultiplexing" at the other, corresponding to each other.

               

    Dual Fiber

     

       

    Maximize Your Fiber Resources with Passive WDM Network

         

    WDM technology enables diverse data transmissions over a single fiber, reducing the need for multiple dedicated fibers per service.

    It serves as a cost-effective network solution by optimizing the utilization of optical fibers.

               

    Maximize Your Fiber Resources with Passive WDM Network

       

    Comprehensive Network Solution Design for Free

       

    Individually crafted solutions meeting your specific requirements perfectly.

         Comprehensive Network Solution Design for Free

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    Resources

    • PDF Document
      QT-FMU-C82745EM Datasheet.pdf
    • PDF Document
      Mux Demux & OADM User Guide.pdf
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    8 Channels Passive CWDM Mux Demux 1270-1450nm (Skip 1390, 1410nm), with Monitor and Expansion Port, Dual Fiber, LC Connector, Low Insertion Loss

    Series CWDM DF MUX/DEMUX

    Model FMU, 1270-1450nm, 2.4dB

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    Mark

    2023-12-15
    This product works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent value fo ct works well with my switch, and I plan to buy some DWDM transceivers from QT. Excellent valur money!

    Verified Purchase

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    8 Channels Passive CWDM Mux Demux 1270-1450nm (Skip 1390, 1410nm), with Monitor and Expansion Port, Dual Fiber, LC Connector, Low Insertion Loss
    US$ 199.00
    Series
    CWDM DF MUX/DEMUX
    Model
    FMU, 1270-1450nm, 2.4dB
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    Bulk Order Quotes
    8 Channels Passive CWDM Mux Demux 1270-1450nm (Skip 1390, 1410nm), with Monitor and Expansion Port, Dual Fiber, LC Connector, Low Insertion Loss

    Series CWDM DF MUX/DEMUX

    Model FMU, 1270-1450nm, 2.4dB

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