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The Cobalt® BlueBox™ BBG-4490 series of CWDM passive multiplexers (mux) / de-multiplexers (demux) offer a flexible, scalable, cost-effective solution to mux and demux up to 18 fiber channels onto a shared fiber trunk. 4 and 8-channel units are available which can be used as standalones or rack-mounted using an optional 1RU mounting panel (12, 16, and 18-channel units are rack-mounted 1RU units). Used in conjunction with our fiber EO and OE converter cards, digital video, audio, and IP can all be carried over a shared fiber trunk. Coarse Wave Division Multiplexing (CWDM) offers a cost-effective, scalable, and convenient solution for multiplexing and de-multiplexing discrete channels onto a shared fiber trunk. Each model can be used as a mux or a de-mux unit (two units are required for a complete mux/de-mux setup).
The BBG-4490 mux/de-mux units are available in 4, 8, 12, 16, and 18-channel versions. Epoxy-free optical paths help ensure reliability over a wide range of operating conditions. The low-loss passive devices use no external power.
Key Features
Standalone/rack-mountable design allows use as a standalone or rack-mounted
Same models can be used either as mux or demux unit - fully bidirectional
Fully passive design using low-loss filters. Requires no power or communications.
Available in several connector configurations - ST, SC, LC, FC
Epoxy-free optical paths help ensure reliability over a wide range of operating conditions
Five year warranty
Specifications
Filter Wavelengths
See Ordering Information
Central Wavelength Accuracy
< ± 1nm
In-band Ripple
0.5 dB
Passband Width @ 0.5 dB
>13nm
Insertion Loss
<= 3.6 dB
Adjacent Channel Isolation
>= 15 dB
Non-adjacent Channel Isolation (demux usage)
>= 40 dB
Uniformity
3 dB (max)
Polarization-dependent Loss
0.15 dB (max)
Polarization Mode Dispersion
0.1 ps (max)
Return Loss
50 dB (min)
Directivity
50 dB (min)
Temperature Stability
0.007 dB/°C (max)
Temperature Wavelength Drift
0.005 nm/°C (max)
Power Handling
300 mW (max)
Tensile Load
5N (max)
Temperature Range
0-70°C (operating)
-40 to +85°C (storage)
Diagrams
Rack Mounting Options
Block Diagram
Note: All units can be used as multiplexer or de-multiplexer. Two units are required for a complete mux / de-mux setup. Where operating wavelength differences are specified, make certain mux/demux pair is ordered with correspondingly matched wavelengths.
Note: Add fiber connector suffix to part numbers to specify fiber connection type (LC, ST, SC, FC). (For example, BBG-4490-CWDM-4A-XX fitted with LC connectors is ordered as “BBG-4490-CWDM-4A-LC”.)
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