4 Channels Double Fiber Low-band Passive CWDM Mux/Demux

# Key Highlights
  • 4 CWDM Data Streams over Double SMF
  • Fully Passive: No Power Supply or Cooling
  • MTBF: 100+ Years
  • Protocol & Data Rate neutral
  • Low Insertation Loss – 1.2 dB
  • Band-Pass / Skip filters Installed
  • Compact: LGX Type B package
  • Easy Installation & Expansion
  • 5 Year Warranty
# Pricing & Ordering


Standard recommended retail price without VAT.

Lead Time: Below 1 Week in EU Countries
# Quality Assurance

Because of our comprehensive Testing Program, we are confident on quality of our products. Such approach empower us to cover all our products with:

# Front Panel

DCMD-4L Front Panel

# Key Technical Data
Product Type:

Number of Data Streams:

Number of Optical Channels:

Operating Wavelengths:

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Filter Technology:


Channel Spacing:

Band-Pass (“Skip”) Filters:

Insertation Loss (Passband):

Isolation Adjacent Channels:

Isolation Non-Adjacent Channels:

Channel Pass-band Ripple:

Polarization Dependent Loss (PDL):

Polarization Mode Dispersion (PMD):


Return Loss:


Operating Temperature:

Storage Temperature:

Relative Humidity:


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# Product Documentation
# Product Description

4 Channels Double Fiber Low-band Passive CWDM Mux/Demux – DCMD-4L is member of EDGE Optics xWDM Series product line. We designed EDGE Optics xWDM Series products to allow easy, gradual, logical and cost efficient expansion of network bandwidth using industry leading passive WDM technology. Main advantage of xWDM is its passive nature – no power supply or cooling necessary, robustness – no special micro-climate requirements and as passive element, it has MTBF 100+ Years. xWDM is – it is fully data rate or line protocol neutral – it is possible to use with colored transceivers supporting such applications as 1G/10G Ethernet, SDH/SONET and 8/4/2/1G Fiber Channel. It’s simple to install, requires no configuration or maintenance.
DCMD-4L is passive multiplexer/de-multiplexer package based on Thin-Film Filter (TFF) technology, allowing organize 4 duplex and parallel protocol independent ITU-T G.694.2 compatible Coarse Wavelength Division Multiplex (CWDM) data streams over pair of single mode optical fiber. With our focus to provide maximally low insertion loss, DCMD-4L is equipped with band-pass or skip filters extending maximum distance of CWDM connections. DCMD-4L operates within CWDM Low-Band range of 1270-1330nm and it is possible to use it as upgrade package together with High-Band CWDM products such as DCMD-4HE or DCMD-8HE, or also as standalone. DCMD-4L s manufactured as LGX type B module, installed in 19” 1U sub rack fitting any standard equipment rack.