1-channel Add&Drop C/DWDM multiplexer

Cost-effective and optimized regarding attenuation Add&Drop Device

  • Ideal for C/DWDM ring structures or daisy chain applications
  • Compact 1-slot module for integration in a standalone or 19" SPEED-CARRIER housing
  • Customized number of channels and wavelengths available
  • Optimized to attenuation and costs
  • Multiple Use of C/DWDM Wavelengths

    The SPEED-AD-xWDM is a compact add&drop multiplexer for CWDM and DWDM applications. A dedicated wavelength can be dropped out of a fiber optic link that parallel transmits multiple C/DWDM wavelengths by using an add&drop multiplexer. All incoming wavelengths are received at one of the both line ports in such a daisy-chain structure. The required wavelength/application are dropped by the so-called “drop”-client port.
    This in the further course unused wavelengths can be connected with a new application by the socalled “add”-port. The new application and the remaining, non-dropped wavelengths are conjoined transmitted to the next site by using the second line port.   

  • Add&drop C/DWDM in a Ring: DSLAM Backhauling and shift-in

    Add/drop multiplexer are often used in ring structures requiring longer distances as constructionconditioned significantly improved attenuation values can be achieved compared to standard CWDM and DWDM multiplexers. A ring structure enables to realize a backup scenario in addition to an actual transmission. This backup scenario assures the data transmission – even after a fiber break between two sites.


  • Attenuation: Depending on the number of channels Using a 3-channel put-through and a 1-channel add&drop: Approx. 1 dB (without connector)
  • Passive mux/demux modules without requiring power supply
    • Humidity: 0 to 95% (non-condensing)
    • Dimensions: (H x B x T): 21 x 131 x 219 mm

Line port

  • Line type: single-mode
  • Connector: LC
  • Distance: Depending on power budget of user equipment

Client port

  • 2 x single-mode
  • Wavelengths: C/DWDM on request
  • Connector: LC/PC


  • CDWM/DWDM ring structure or daisy chain
  • High-speed:

    ATM, SONET/SDH, Ethernet/Fast Ethernet, Gigabit Ethernet, 10 Gigabit
    Ethernet, Fibre Channel, FICON, ESCON etc.

  • Low-speed:

    n x 64 kbit/s application, Leased Lines, E1, ISDN etc.

Housing types

  • 6-slot SPEED-CARRIER
  • 4-slot SPEED-CARRIER 1U
  • 16-slot SPEED-CARRIER 5U
  • 1-slot standalone housing

Ordering option

  • S-CAD-XX-B :: CWDM-AD 1-channel
  • S-CAD-XX/YY-B :: CWDM-AD 2-channel
  • S-CAD-XX/YY/ZZ-B :: CWDM-AD 3-channel
  • S-DAD-XX-B :: DWDM-AD 1-channel
  • S-DAD-XX/YY-B :: DWDM-AD 2-channel
  • S-DAD-XX/YY/ZZ-B :: DWDM-AD 3-channel

Combinable SPEED products

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