CWDM typically has the capability to transport up to 16 channels (w***elengths) in the spectrum grid from 1270 nm to 1610 nm with a 20 nm channel spacing. Each channel can operate at either 2.5, 4 or 10 Gbit/s. CWDM can not be amplified as most of the channels are outside the operating window of the Erbium Doped Fibre Amplifier (EDFA) used in Dense W***elength Division Multiplexing (DWDM) systems. This results in a shorter overall system reach of approximately 100 kilometers. However, due to the broader channel spacing in CWDM, cheaper un-cooled lasers are used, giving a cost advantage over DWDM systems.

 

Tran***ode uses both CWDM and DWDM technologies as a means of transporting different types of services, e.g. Ethernet, SDH/SONET, and Fibre Channel (FC) in metro networks. CWDM is the most cost efficient of the two WDM variants, but has limitati*** in the distance over which the traffic is transported and in total channel count. With Tran***ode CWDM soluti***, the distance supported is up to 100 km.

 

Both Tran***ode’s TM-Series and TS-Series product families are CWDM and DWDM agnostic. This means a CWDMnetwork can initially be deployed with either product series and when required, the network can be simply upgraded to a hybrid CWDM/DWDM network using common ca*** and pluggable optics. Therefore, by deploying Tran***ode’s CWDMor DWDM based soluti*** the lowest possible day 1 cost are enabled without sacrificing the scalability of the network.