DWM CWDM and Bidi WDM BXSR Vs SR4

Owned by Jean-luc KRIKER
Last updated: Jul 31, 2024
2 min read


CWDM Vs DWDM

Coarse Wavelength Division Multiplexing Vs  
Dense Wavelength Division Multiplexing


CWDM is cost-effective, suitable for short to medium distances, and simpler to deploy,

                  making it ideal for metro and access networks.

DWDM provides higher capacity and is suitable for long-distance, high-capacity applications,

                  but at a higher cost and complexity.



CWDMG.694.2 channel grid
DWDMG.694.1 channel grid



https://community.fs.com/blog/do-you-know-all-these-terminologies-of-wdm-technology.html


Juniper BiDi SFP:  SFP-GE10KT14R13    meaning:  1GE 10Km  Tx14 Rx13  ( 1.4mm / 1.3mm )

https://apps.juniper.net/hct/model/?component=SFP-GE10KT14R13


1000BASE-BX-D

1000BASE-BX-D

SR4 uses a single wavelength 4 pairs of fibres, whereas the BXSR uses a 4 wavelengths over a single pair of fibres.


BXSR

https://apps.juniper.net/hct/model/?component=JNP-QSFP-100G-BXSR&prd=QFX5110&cat=Transceivers

LC duplex Multimode fiber



Vs 100G SR4

https://apps.juniper.net/hct/model/?component=JNP-QSFP-100G-SR4

12-ribbon multimode fiber crossover cable with female MPO/UPC connectors