Low-Band 4 Data Channels Single Fiber Passive CWDM Mux/Demux: SCMD-4B-L

BiDi CWDM
LGX Cassette
4
8
2.8 dB
Low-Band 4 Data Channels Single Fiber Passive CWDM Mux/Demux

Low-Band 4-Channel Single Fiber CWDM Mux/Demux Side B Overview

Our low-band 4-channel single fiber CWDM Mux/Demux Side B operates in the lower wavelength spectrum for optimized single-fiber networks. Supporting 8 wavelengths across ITU-T G.694.2 channels (1311-1451nm), this passive unit delivers below 1.5 dB insertion loss with monitor port. LC/UPC connectors in LGX form factor. Pair with SCMD-4A-L for complete link.

  • xWDM Technology: BiDi CWDM
  • Package Type: LGX Cassette
  • Number of Data Streams: 4
  • Number of Optical Channels: 8
  • Connector: LC/UPC
  • Filter Technology: TFF (Thin Film Filter)
  • Insertation Loss (Passband): 2.8 dB
  • Operating Temperature: 0 °C - 70 °C
  • MTBF: 1000000 hours

SCMD-4B-L Low-Band Mux/Demux Pricing

SKUSKU:SCMD-4B-L
Lead timeSpecial Order - Up to 4 Weeks
Standard recommended retail price ex VAT:
157.66
Choice of 0+
Telecoms & Integrators Globally

Low-Band 4 Data Channels Single Fiber Passive CWDM Mux/Demux Specification

Product Type
BiDi CWDM MUX/DEMUX Unit
Package Type
LGX Cassette
Number of Data Streams
4
Number of Optical Channels
8
Connector
LC/UPC
Operating Wavelengths
4 CWDM Channel pairs 1311-1451nm
Channel Spacing
20 nm
Passband
± 7.5 nm (λ center)
Filter Technology
TFF (Thin Film Filter)
Insertation Loss (Passband)
2.8 dB
Isolation Adjacent Channels
30 dB
Isolation Non-Adjacent Channels
45 dB
Channel Pass-band Ripple
0.3 dB
Polarization Dependent Loss (PDL)
0.1 dB
Polarization Mode Dispersion (PMD)
0.1 ps
Directivity
50 dB
Return Loss
45 dB
Maximum Power Handling
500 mW
Operating Temperature
0 °C - 70 °C
Operating Humidity
5 % - 95 %
Storage Temperature
-40 °C - 85 °C
MTBF
1000000 hours
Compliance
CE, ISO, ITU-T G.694.2, RoHS

Low-Band 4 Data Channels Single Fiber Passive CWDM Mux/Demux Datasheet

v1

Complete technical specifications and product details

Updated:Dec 11, 2025Format:PDF

Low-Band 4 Data Channels Single Fiber Passive CWDM Mux/Demux Description

Low-Band 4 Channels Single Fiber Passive CWDM mux/demux – SCMD-4B-L is a member of the 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. The main advantage of xWDM is its passive nature – no power supply or cooling necessary, robustness with no special micro-climate requirements, and as a passive element, it has an MTBF of 100+ years. xWDM is fully data rate and line protocol neutral – it is possible to use with colored transceivers supporting applications such as 1G/10G Ethernet, SDH/SONET, and 8/4/2/1G Fiber Channel. It is simple to install and requires no configuration or maintenance. SCMD-4B-L is a passive multiplexer/demultiplexer package based on Thin-Film Filter (TFF) technology, designed to organize 4 duplex, protocol-independent ITU-T G.694.2 compatible Coarse Wavelength Division Multiplex (CWDM) data streams over a single strand of single-mode fiber. The unit features LC/UPC connectors. With a focus on minimal insertion loss, SCMD-4B-L is equipped with band-pass or skip filters extending the maximum distance of CWDM connections SCMD-4B-L is manufactured as an LGX-type package, installed in a 19-inch 1U sub-rack fitting any standard equipment rack. SCMD-4B-L is used together with the counterpart SCMD-4A-L module at the other end of the line. SCMD-4B-L is operating in Low-Band and can be used in combination with SCMD-4B-E or SCMD-2B-E, by connecting it to Upgrade ports of these modules.