<===Network Provider===> +----+ from X1:x1 to X2':x2' +-----+ X1':x1' | C1 |>>>>>>>>>>>>>>>>>>>>>>>>>>>>>--+--- +----+ | v | | v | | v | | v | +----+ from X1':x1' to X2:x2 | v | X2':x2' | C2 |<<<<<<<<<<<<<<<<<<<<<<<<<<<<<--+--- +----+ +-----+ Converter Note: X2':x2' may be equal to X2:x2