FTH sab hauv tsev poob cov khoom siv fiber ntau tau siv hauv cov tsev lossis tsev. Nyob rau hauv nruab nrab ntawm lub cable yog lub chaw sib txuas lus kho qhov muag, nrog ob txoj kev sib txuas lus tsis yog-frp / KFRP ua lub zog ua haujlwm, thiab puag ncig nrog LSZH tsho. Nyob sab hauv tsev siv FTH tso cov kab ke fiber ntau muaj tib yam nuj nqi ntawm cov kev ua haujlwm nyob sab hauv tsev, tab sis nws muaj qee cov nta tshwj xeeb. FTH sab hauv Drop Fiber ntau lub taub hau yog qhov sib txawv me me, cov dej tsis yeem, muag muag thiab zoo nkauj, yooj yim rau kev xa tawm thiab txij nkawm. Tshwj xeeb sab hauv tsev ftth xee yuav tseem yuav ua kom muaj kev tsim nyog ntawm thunder-pov thawj, tiv thaiv haiv neeg lossis dej tsis huv.
