Nekuvandudzwa kwenetwork uye kufambira mberi kwetekinoroji, vagadziri vazhinji ve fiber optic components vaonekwa pamusika, vachiedza kuwana chikamu chenyika yenetwork. Sezvo vagadziri ava vachigadzira zvinhu zvakasiyana-siyana, chinangwa chavo ndechekugadzira zvinhu zvemhando yepamusoro uye zvinoenderana kuitira kuti vatengi vagone kusanganisa zvinhu zvakasiyana-siyana kubva kuvagadziri vakasiyana. Izvi zvinonyanya kukonzerwa nematambudziko emari, sezvo nzvimbo zhinji dzedata dzichigara dzichitsvaga mhinduro dzinodhura dzekushandisa mumanetwork avo.
Matransceiver ekuonachikamu chakakosha che network dze fiber optic. Dziri kushandura nekufambisa tambo ye fiber optic kuburikidza nayo. Dzine zvikamu zviviri zvikuru: transmitter ne receiver. Kana zvasvika pakugadzirisa nekugadzirisa matambudziko, zvakakosha kukwanisa kufanotaura, kuyedza, uye kuona kuti matambudziko anogona kuitika kana kuti akamboitika kupi. Dzimwe nguva, kana kubatana kukasasangana ne bit error rate inotarisirwa, hatigone kuona pakutanga kuti ndeipi chikamu chekubatana chiri kukonzera dambudziko. Inogona kunge iri cable, transceiver, receiver kana zvese zviri zviviri. Kazhinji, specification inofanira kuvimbisa kuti chero receiver ichashanda nemazvo nechero transmitter yakaipa, uye zvinopesana, chero transmitter inopa chiratidzo chemhando yakakwana kuti chitorwe nechero receiver yakaipa. Zviyero zvakaipa kazhinji ndizvo zvinonyanya kuoma kutsanangura. Zvisinei, kazhinji pane matanho mana ekuyedza zvikamu zve transmitter ne receiver zve transceiver.
Pakuyedza chikamu chetransmitter, kuyedza kunosanganisira kuyedza wavelength uye chimiro chechiratidzo chinobuda. Pane matanho maviri ekuyedza transmitter:
Kubuda kwechiedza chemuchina wekutumira chiedza kunofanirwa kuyedzwa nerubatsiro rwezviyero zvakasiyana-siyana zvemhando yechiedza, zvakaita sekuyedza mask, optical modulation amplitude (OMA), uye chiyero chekudzima. Edza uchishandisa eye diagram mask testing, nzira yakajairika yekuona ma waveforms emuchina wekutumira uye kupa ruzivo nezve mashandiro emuchina wekutumira. Muyero wemaziso, musanganiswa wese wemapatani edata unoiswa pamusoro peumwe neumwe pane imwe nguva yakafanana, kazhinji pasi pema bit periods maviri. Chikamu chekugamuchira bvunzo ndicho chikamu chakaoma kwazvo chemaitiro acho, asi kunewo matanho maviri ekuyedza:
Chikamu chekutanga chebvunzo ndechekusimbisa kuti mugamuchiri anogona kutora chiratidzo chisina kunaka ochichinja. Izvi zvinoitwa nekutumira chiedza chisina kunaka kumugamuchiri. Sezvo ichi chiri chiratidzo chemaziso, chinofanira kuenzaniswa uchishandisa jitter uye kuyerwa kwesimba remaziso. Chimwe chikamu chebvunzo ndechekuedza kupinda kwemagetsi kumugamuchiri. Munguva iyi, mhando nhatu dzebvunzo dzinofanira kuitwa: kuyedza mask yemaziso kuti ive nechokwadi chekuti ziso rakazaruka zvakakwana, kuyedza jitter kuyedza mamwe marudzi ehuwandu hwejitter uye kuyedza kushivirira jitter, uye kuyedza kugona kwemugamuchiri kuteedzera jitter mukati mayo mukati me bandwidth ye loop.
Nguva yekutumira: Gunyana-13-2022