The Ciena 130-0020-904F Multiwave DL Selector Module is a Ciena hardware component identified by part number 130-0020-904F and part of the Multiwave DL selector family. Its specifications list a center frequency of 193.9 THz and a center wavelength of 1546.1 nm, defining the optical channel it targets. As a selector module, it is used to select or route a specific channel within a multi-channel optical system.
