If your transmission rate is 1G, DCM will not be required. When transmission rate is 10G rate (Whether it is pure 10G rate signal or 1G & 10G mixed rate signal), DCM is required. Additionally, dispersion is also effected by fiber type. For example, the dispersion coefficient of G.652 fiber is 17ps/(nm*km), and G.655 fiber is 4.5ps/(nm*km). aus FS am 11.05.2018

You can use the following method to calculate the compensation length, as a reference to select the DCM you need. The link distance minus the transmission distance of the optical module is the minimum compensation distance, on this basis need to add 20km to ensure enough compensation. For example, if the transmission span is 135km, the compensation length is 75km (135km - 80km + 20km = 75km), which means you can choose a DCM whose compensating length is 80km. aus FS am 06.12.2017

Compensated length, utilized position, insertion loss and type of housing need to be comfirmed. aus FS am 16.11.2017

Yes, we can provide you a variety of customized products, including different compensation lengths (10km~140km), different technology types(DCF, FBG and Gires-Tournois), different connectors (LC/SC/FC, UPC/APC polish) as well as different types of housing (plug-in card type or 1U 19" rack mount). aus FS am 08.08.2017

No. The plug-in type DCM can only be used with the FMT 1U/2U/4U chassis because of its card design. If you don't need a chassis, you can customize a 1U 19" Rack Mount DCM that can be used alone in custom page. aus FS am 20.07.2017

You need to notice the utilized position of its application, including pre-, link- and post-compensation. But you'd better limit the pre-compensation length winthin 40km, and make sure the link- and post-compensation length don't exceed 100km. aus FS am 01.07.2017

Yes, test report and software CD will be attached as well. aus FS am 18.06.2017