The CFP-QSFP28-CONV-F adapter module converts 100 Gigabit CFP port into 100 Gigabit QSFP28 port and supports 100G Ethernet and OTN4 applications. It’s achieved by re-mapping CFP CAUI-10 Electrical interface 10x10Gbps data lanes in CAUI-4 electrical interface 4x25Gbps data lanes and vice versa. With CFP-QSFP28-CONV-F, adapter module engineers have a flexibility to use 100G interface of equipment with both – CFP or QSFP28 modules. Such flexibility is important in cases when specific type of interface is not available in one or other transceiver form factor or when engineers want to use the same form factor of transceiver for interfaces across multiple platforms deployed in network. This CFP-QSFP28-CONV-F does not support FEC function necessary to use with 100GBASE-SR4 application. Reference clock for OTN4 can be set to 174.703mhz or 698.812mhz, for 100G Ethernet to 161.133mhz or 644.531mhz.