1, optical modem ndiyo chiratidzo chekuona muEthernet yemagetsi masaini emidziyo, optical modem yakatanga kunzi modem, imhando yehardware yemukombuta, iri pakuguma kwekutumira kuburikidza nekushandurwa kwemasaini edhijitari kuita masaini eanalog, uye pakuguma kwekugamuchira kuburikidza. demodulation analog masaini mudhijitari masaini mudziyo.
An Optical Network Unit (ONU) inzvimbo yekuona network.Iyo ONU yakakamurwa kuita inoshanda optical network units uye passive optical network mauniti.Iyo ONU inonyanya kushandiswa kugamuchira data renhepfenyuro inotumirwa neOLTs.Mukuwedzera kune basa rekati chiedza, ONU inewo basa rekushandura.
2, onu yakakamurwa kuita, b, c kirasi, ese ari matatu ari optical access, asi kupa vashandisi huwandu hwezviteshi, mhando dzechiteshi dzakasiyana, optical modem ichokwadi yekirasi onu.
Optical modem, inozivikanwawo se optical katsi, itiweki mudziyo unotumira masaini masaini kune mamwe masaini masaini kuburikidza neoptical fiber media.Icho chishandiso chekutumira chekutumira kune yakakura yenzvimbo network network (LAN), metropolitan area network (MAN), uye yakakura nharaunda network (WAN).Chigadzirwa chacho chinoumbwa nekutumira, kugamuchira, kutonga, interface, uye magetsi.Iyo inotora yakakura-yakasanganiswa chip, yakareruka dunhu, yakaderera mashandisiro emagetsi, kuvimbika kwakanyanya, yakazara alarm chimiro chiratidzo, uye yakakwana manejimendi manejimendi basa.
Optical fiber kutaurirana yakakurumidza kusimukira kuita iyo nzira huru yekufambisira ruzivo nekuda kwemabhenefiti ayo akadai seyakafara frequency bhendi uye yakakura kugona.Kuti uone kutaurirana kwemaziso, optical modulation uye demodulation inofanira kuitwa.Naizvozvo, sechinhu kiyi mudziyo we optical fiber kutaurirana system, optical modem iri kugamuchira zvakanyanya uye zvakanyanya kutariswa.Kune mhando mbiri dzeoptical modulators: yakananga modulator uye yekunze modulator, uye optical demodulator yakakamurwa kuita marudzi maviri: ine uye isina yakavakirwa-mukati memumbure.Yakananga modulator uye demodulator ine yakavakirwa-mukati amplifier ndiyo inotariswa yeichi chirongwa.Yakananga modulation ine mabhenefiti ekureruka, hupfumi uye nyore kuita, nepo demodulator ine yakavakirwa-mukati amplifier ine hunhu hwekubatanidzwa kwepamusoro uye saizi diki.
optical modem chishandiso chekufambisa chinogona kubatanidzwa neInternet nekubatanidza tambo yetiweki, yakafanana neyedu Internet light cat, asi iyo yekumusoro magumo ekati yakabatana nedunhu, uye iyo yepamusoro yekupedzisira yeOptical modemis yakabatana. kunzira yechiedza, saka inodaidzwa kuti light cat.Katsi yakabatana negwara rechiedza.Mugumo wepazasi weonu muepon/GPON wakabatana nemushandisi.
1, Optical modem imhando yeOnu, ndeyemushandisi mumwechete, Optical modem inogona zvakare kunzi idesktop onu.
2, iyo huru onu ndeyevashandisi vakawanda, kureva kuti, chiteshi chemagetsi chine 8 kusvika 24 pon ports.Iyo optical modem ine chete 1-4 magetsi ports.
Musiyano uripo pakati peOptical modem neONU:
Optical modem inowanzo shandiswa kana vatengi vakakura, kunyanya kune yakazvipira kuwana data.
Optical modem kadhi mhando uye desktop, kadhi mhando inowanzoisa muchina kamuri.
Iyo desktop inowanzoiswa pamutengi.ONU inoshandiswa kune Broadband Residence network kuwana.Musiyano mukuru unobva pane yakabatanidzwa kamuri kadhi optical katsi kune mutengi desktop optical katsi, peya yekatsi optical account yeaviri fiber, uye kubva mukamuri yakabatanidzwa OLT kune mutengi maONU akawanda anongogara peya chete fiber, uye yepakati inopinda nepakati.Musiyano uripo pakati peOptical modem neONU ndewekuti ONU inochengetedza fiber core resources, uye optical modem yakachipa, uye peya yekatsi dzakareruka mazana akati wandei zvidimbu.Ndeupi rudzi rwekushandisa, kuongororwa kwakazara kwemutengo, maererano nemamiriro ezvinhu.
Nguva yekutumira: Zvita-14-2023