FMU series CWDM Mux Demux covers up to 18 CWDM channels from 1270nm to 1610nm in 20nm increments as defined by ITU-T G.694.2. It's protocol and rate transparent supporting such applications as 1G/10G Ethernet, SDH/SONET and 8/4/2/1G Fiber Channel across the same fiber link.
![Customized Compact CWDM Mux Demux, 2.6dB Max IL, Dual Fiber This picture is about CCWDM-DF.](https://resource.fs.com/mall/mainImg/20220712102746nldsrs.jpg)
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![Customized Compact CWDM Mux Demux, 2.6dB Max IL, Dual Fiber This picture is about CCWDM-DF.](https://resource.fs.com/mall/mainImg/60x60/20220712102746nldsrs.jpg)
![Customized Compact CWDM Mux Demux, 2.6dB Max IL, Dual Fiber This picture is about CCWDM-DF.](https://resource.fs.com/mall/mainImg/60x60/20220719101151wonaxu.jpg)
![Customized Compact CWDM Mux Demux, 2.6dB Max IL, Dual Fiber This picture is about CCWDM-DF.](https://resource.fs.com/mall/mainImg/60x60/20220707104210xh3ebt.jpg)
![Customized Compact CWDM Mux Demux, 2.6dB Max IL, Dual Fiber This picture is about CCWDM-DF.](https://resource.fs.com/mall/products/60x60/73959.C.jpg)
![Customized Compact CWDM Mux Demux, 2.6dB Max IL, Dual Fiber This picture is about CCWDM-DF.](https://resource.fs.com/mall/products/60x60/73959.B.jpg)
Customized Compact CWDM Mux Demux, 2.6dB Max IL, Dual Fiber
Customized Compact CWDM Mux Demux, 2.6dB Max IL, Free Space
![](https://resource.fs.com/mall/fs_scene_images/202210291001092gn71k.jpg)
Three housing options cater to various installation needs: FMU Plug-in Mux for FMU Chassis, 1U Rack Mount for rack mounting, and ABS Pigtailed Mux with space-saving capability.
You have the freedom to select a monitor port for channel power monitoring and expansion port, 1310nm or 1550nm port for capacity increasing.
Monitor Port
Connecting with the power meter or OPD to ensure easy troubleshooting
1310nm Port
Allow existing 1310nm traffic to be added via transceivers worked on 1310nm
Expansion Port
Used for connecting to another Mux with different channels to expand the system
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