Endaweni yezobuchwepheshe yanamuhla eguqukayo ngokushesha, ukuqonda izinhlobo ezahlukahlukene zezixhumi kubalulekile kochwepheshe emikhakheni kagesi ne-elekthronikhi. Izinhlobo ezimbili ezibalulekile zezixhumi ezifanele ukuhlola yizixhumi ze-RCA nezixhumi ze-optical fiber. Ngayinye isebenza izinhloso ezihlukile futhi inezici ezihlukile ezenza zilungele izinhlelo zokusebenza ezithile. Izixhumi ze-RCA,
