Ana canza siginar gani zuwa sigina na yanzu ta hanyar shigar da fiber na gani.Siginar Si PIN tana tare da da'irar haɓakawa na farko wanda ke ba da damar haɓaka sigina mai rauni a halin yanzu da jujjuya siginar wutar lantarki don cimma tsarin jujjuyawar siginar hoto-photoelectric.