The 8CH Mux Demux is a high-density, low loss, and suitable for long-haul transmission passive DWDM device based on TFF (Thin Film Filter). This unit can be used as either a multiplexer or de-multiplexer (mux/demux). In accordance with the ITU-T, it maximizes the capacity of the C-band range.
In conjunction with the FS transponders and amplifiers, etc., this Mux Demux supports a wide range of architectures from simple point-to-point to amplified ring configurations.

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8 Channels DWDM Mux Demux, 100GHz C21-C28, with Monitor, Expansion and 1310nm Port, 2.4dB Typical IL, LC/UPC, Dual Fiber, High Density, FHD® Plug-in Module
8 Channels DWDM Mux Demux, 100GHz C21-C28, with Monitor, Expansion and 1310nm Port, 2.4dB Typical IL, LC/UPC, Dual Fiber, High Density, FHD® Plug-in Module
Non-adjacent ≥ 40dB
Storage -40 to 85°C (-40 to 185°F)
*FHD is a registered trademark of FS.COM Ltd.
Connectivity Solutions





Features
The C21-C28 channel port for ITU grid DWDM traffic, EXP port for service expansion, MON port for optical performance monitoring.
Expansion port & 1310nm port make additional channels can be seamlessly added to increase capacity.
Instead of using multiple fibers for each service, a single fiber can be shared for multiple different data or services in WDM network. It maximizes the usefulness of fiber and generates substantial savings.
Usually, at a split of 1% (2%, 3%, 5% optional), the monitor port offers flexible monitoring ways to test the power, wavelength and OSNR of the optical signal without service interruption.
Number of channels | 8 | 8 | 8 | 8 | 8 |
Wavelength | C21-C28 | C53-C60 | RX-C21~C35, TX-C22~C36 | RX-C22~C36, TX-C21~C35 | C29-C36 |
Insertion Loss | ≤ 3.1dB, 2.4dB Typical | ≤3.3dB, 3.0dB Typical | ≤ 4.6dB, 4.2dB Typical | ≤ 4.6dB, 4.2dB Typical | ≤ 2.8dB, 2.4dB Typical |
Channel Spacing | 0.8nm | 0.8nm | 0.8nm | 0.8nm | 0.8nm |
Channel Isolation | Adjacent ≥ 30dB Non-adjacent ≥ 40dB | Adjacent ≥30dB Non-adjacent ≥ 40dB | Adjacent ≥ 30dB Non-Adjacent ≥ 40dB | Adjacent ≥ 30dB Non-Adjacent ≥ 40dB | Adjacent ≥ 30dB Non-adjacent ≥ 40dB |
Return Loss | ≥ 45dB | ≥45dB | ≥ 45dB | ≥ 45dB | ≥ 45dB |
Special Service | Monitor, Expansion, 1310nm Port | Monitor, Expansion, 1310nm Port | Expansion Port | Expansion Port | Monitor, Expansion Port |
Technology | TFF (Thin Film Filter) | TFF (Thin Film Filter) | TFF (Thin Film Filter) | TFF (Thin Film Filter) | TFF (Thin Film Filter) |
Property | Passive | Passive | Passive | Passive | Passive |
Monitoring Type | OPD/OPM | OPD/OPM | — | — | OPD/OPM |
Power Handling | ≤ 500mW | ≤ 500mW | ≤ 500mW | ≤ 500mW | ≤ 500mW |
Housing | FHD® Plug-in Module | FMU Plug-in Module | FMU Plug-in Module | FMU Plug-in Module | FHD® Plug-in Module |
Videos
8 Channels DWDM Mux Demux, 100GHz C21-C28, with Monitor, Expansion and 1310nm Port, 2.4dB Typical IL, LC/UPC, Dual Fiber, High Density, FHD® Plug-in Module
The 8CH Mux Demux is a high-density, low loss, and suitable for long-haul transmission passive DWDM device based on TFF (Thin Film Filter). This unit can be used as either a multiplexer or de-multiplexer (mux/demux). In accordance with the ITU-T, it maximizes the capacity of the C-band range.
In conjunction with the FS transponders and amplifiers, etc., this Mux Demux supports a wide range of architectures from simple point-to-point to amplified ring configurations.
Non-adjacent ≥ 40dB
Storage -40 to 85°C (-40 to 185°F)
*FHD is a registered trademark of FS.COM Ltd.





The C21-C28 channel port for ITU grid DWDM traffic, EXP port for service expansion, MON port for optical performance monitoring.
Expansion port & 1310nm port make additional channels can be seamlessly added to increase capacity.
Instead of using multiple fibers for each service, a single fiber can be shared for multiple different data or services in WDM network. It maximizes the usefulness of fiber and generates substantial savings.
Usually, at a split of 1% (2%, 3%, 5% optional), the monitor port offers flexible monitoring ways to test the power, wavelength and OSNR of the optical signal without service interruption.
Number of channels | 8 | 8 | 8 | 8 | 8 |
Wavelength | C21-C28 | C53-C60 | RX-C21~C35, TX-C22~C36 | RX-C22~C36, TX-C21~C35 | C29-C36 |
Insertion Loss | ≤ 3.1dB, 2.4dB Typical | ≤3.3dB, 3.0dB Typical | ≤ 4.6dB, 4.2dB Typical | ≤ 4.6dB, 4.2dB Typical | ≤ 2.8dB, 2.4dB Typical |
Channel Spacing | 0.8nm | 0.8nm | 0.8nm | 0.8nm | 0.8nm |
Channel Isolation | Adjacent ≥ 30dB Non-adjacent ≥ 40dB | Adjacent ≥30dB Non-adjacent ≥ 40dB | Adjacent ≥ 30dB Non-Adjacent ≥ 40dB | Adjacent ≥ 30dB Non-Adjacent ≥ 40dB | Adjacent ≥ 30dB Non-adjacent ≥ 40dB |
Return Loss | ≥ 45dB | ≥45dB | ≥ 45dB | ≥ 45dB | ≥ 45dB |
Special Service | Monitor, Expansion, 1310nm Port | Monitor, Expansion, 1310nm Port | Expansion Port | Expansion Port | Monitor, Expansion Port |
Technology | TFF (Thin Film Filter) | TFF (Thin Film Filter) | TFF (Thin Film Filter) | TFF (Thin Film Filter) | TFF (Thin Film Filter) |
Property | Passive | Passive | Passive | Passive | Passive |
Monitoring Type | OPD/OPM | OPD/OPM | — | — | OPD/OPM |
Power Handling | ≤ 500mW | ≤ 500mW | ≤ 500mW | ≤ 500mW | ≤ 500mW |
Housing | FHD® Plug-in Module | FMU Plug-in Module | FMU Plug-in Module | FMU Plug-in Module | FHD® Plug-in Module |