Ko te muka whatu angiangi ka kapi ki roto i te takotoranga kirihou kia taea ai te piko me te kore e whati. I te nuinga o te waa, ko te taputapu whakawhiti i tetahi pito o te muka whatu ka whakamahi i te diode-emitting light light, i te kurupae laser ranei hei kawe i nga pihi marama ki te muka whatu, a ko te taputapu whiwhi i tetahi atu pito o te muka whatu e whakamahi ana i te waahanga taarua hei kite i te puoro
Tuatahi, mena ko te rama tohu mo te transceiver muka whatu, kowhiringa muka whatu ranei, me te rama tohu o te taarua takirua takirua kei te
Mena kua weto te tohu FX o te kaiwhakawhiti, tena koa tirohia mena he hono-hono te hononga muka; kotahi te pito o te muka te muka e honohono ana; ko tetahi atu o nga pito ka honoa ki te aratau whakawhiti. Mena ko te tohu whanga (FX) tohu o te A transceiver kei te haere a kei te watea te tohu whanga (FX) o te transceiver B, kei te A transceiver te he: kotahi pea te mea: ko te A transceiver (TX) tauranga tuku whatu Kua Kino, na te mea kaore e taea e te tauranga whatu (RX) o te transceiver B te tango i te tohu whatu; tetahi atu pea ko: ko te hononga muka whatu o te tauranga whakawhiti aukati o te A transceiver (TX) he raru (ka pakaru te taura whatu, ngutu muka whatu ranei).
Kua weto te tohu takirua takirua (TP), tena koa tirohia mena he he te hononga takirua takirua he he ranei te hononga. Tena koa whakamahia he kaiwhakaatu tonutanga hei whakamatautau; ko etahi transceivers e rua nga tauranga RJ45: (Ki te HUB) e tohu ana ko te taura e hono ana i te pana he raina-tika; (Ki Node) e tohu ana ko te taura honohono i te pana he taura whakawhiti; etahi kaiwhakawhiti He hurihuri MPR kei te taha: ko te tikanga ko te raina hono ki te pana he raina totika-tika; Whakawhiti DTE: ko te raina hono e hono ana ki te pana he raina whakawhiti.
Tuarua, whakamahia te mita hiko whatu kia kite
Ko te mana wherikotanga o te muka whatu transceiver ranei wae whatu i raro i nga ahuatanga noa: multimode: i waenga -10db me 18db; aratau kotahi 20 km: i waenga -8db me 15db; aratau kotahi 60 km: i waenga -5db me 12db; Mena ko te mana marama o te transceiver muka whatu kei waenganui i te -30db - 45db, ka taea te whakatau he raru kei te transceiver.
Tuatoru, kei te hapa ranei te haurua / te tikanga taarua katoa
He FDX pana kei te taha o etahi transceivers: ko te tikanga he duplex-katoa; Pana HDX: te tikanga ko te haurua-taarua.
Tuawha, mena kua wahia nga taura whatu me nga peke muka
a. Ka kitea te taura hiwa-kore: whakamahia te rama rama rama, te ra whakamarama, te whakamarama ranei hei whiti i tetahi pito o te hononga taura whatu, hono hono ranei; tirohia mena he marama e kitea ana i tetahi pito? Mena he maarama kitea, he tohu kaore te momou taura whatu i pakaru.
b. Te kitenga-kore i te hononga muka whatu: whakamahia te rama rama rama, te ra, me era atu hei whakamarama i tetahi pito o te miihini muka whatu; tirohia mena he marama e kitea ana i tetahi pito? Mena he maarama kitea, he tohu kaore te pakaru o te muka i pakaru.
