Isendlalelo esibonakalayo singezansi kwemodeli ye-OSI, futhi umsebenzi waso oyinhloko ukusebenzisa isikhungo sokudlulisa esingokoqobo ukuze sinikeze uxhumano oluphathekayo lwesendlalelo sesixhumanisi sedatha ukuze sidlulise ukusakaza okuncane. Isendlalelo esibonakalayo sichaza ukuthi ikhebula lixhunywe kanjani ekhadini lenethiwekhi, nokuthi ibuphi ubuchwepheshe bokudlulisela okufanele busetshenziswe ukuthumela idatha kukhebula, futhi ichaza indlela yokufinyelela yesendlalelo esingaphezulu (isendlalelo sesixhumanisi sedatha).
Ngokujwayelekile, okokusebenza okunamandla athile okucubungula kanye nokuthumela nokwamukela kubizwa nge-data terminal equipment (DTE), kanti okokusebenza phakathi kwe-DTE nendawo yokudlulisa kubizwa ngokuthi i-data circuit terminating equipment (DCE). I-DCE ihlinzeka ngokuguqulwa kwesignali nemisebenzi yokubhala ikhodi phakathi kwe-DTE nendawo yokudlulisela, futhi inesibopho sokusungula, ukunakekela kanye nokukhulula ukuxhumana okubonakalayo. Ngenxa yokuthi i-DCE iphakathi kwe-DTE kanye nendawo yokudlulisa, ngesikhathi senqubo yokuxhumana, i-DCE idlulisela idatha ye-DTE endaweni yokudlulisa ngakolunye uhlangothi, futhi ngakolunye uhlangothi, idinga ukudlulisa i-bit stream etholwe ku i-transmission medium ukuya ku-DTE ngokulandelana. , i-DCE idinga ukudluliswa kolwazi lwedatha kanye nolwazi lokulawula, futhi idinga ukusebenza ngezinga eliphezulu lokudidiyela, ngakho-ke kuyadingeka ukwakha amazinga esixhumi esibonakalayo e-DTE ne-DCE, lawa mazinga angamazinga okusebenza okubonakalayo.
Futhi leli zinga lichaza izici ezine zesendlalelo esibonakalayo:
1. Izici zemishini: Chaza izici zokuxhuma ngokomzimba, cacisa ukucaciswa, ukuma kwesixhumi esibonakalayo, inombolo yokuhola, inombolo nokuhlelwa kwezikhonkwane ezisetshenziswe ekuxhumekeni ngokomzimba, njll.
2. Izici zikagesi: Uma ucacisa ukudluliswa kwamabhithi kanambambili, ububanzi be-voltage, ukufanisa i-impedance, izinga lokudlulisela kanye nomkhawulo webanga lesiginali kulayini, njll.
3. Izici zokusebenza: zikhombisa ukuthi incazelo yezinga elithile emugqeni othile isho ukuthini, kanye nenjongo yolayini wesignali okubonakala kubonwa.
4. Izici zenqubo (izici zenqubo): chaza izinqubo zokusebenza kanye nobudlelwano besikhathi besekethe ngayinye ebonakalayo
Okungenhla incazelo yolwazi "yezici ze-OSI-Physical Layer Characteristics" elethwa i-Shenzhen HDV photoelectric Technology Co., Ltd. Imikhiqizo yokuxhumana ekhiqizwe ikhava yenkampani:
Izigaba zamamojula: amamojula we-fiber optical, Amamojula we-Ethernet, amamojula we-fiber optical transceiver, amamojula okufinyelela kwefiber optical, Amamojula we-SSFP optical, futhiImicu ye-Optical SFP, njll.
I-ONUisigaba: EPON ONU, AC ONU, i-fiber optical ONU, I-CATV ONU, I-GPON ONU, XPON ONU, njll.
OLTisigaba: Ukushintsha kwe-OLT, I-GPON OLT, I-EPON OLT, ukuxhumanaOLT, njll.
Imikhiqizo yemojula engenhla ingahlinzeka ngosekelo lwezimo zenethiwekhi ezahlukahlukene. Ithimba le-R&D elichwepheshile neliqinile lingasiza amakhasimende anezinkinga zobuchwepheshe, futhi ithimba lebhizinisi elicabangayo nelichwepheshile lingasiza amakhasimende ukuthi athole amasevisi ekhwalithi ephezulu ngesikhathi sokubonisana kwangaphambilini nomsebenzi wangemuva kokukhiqiza. Siyakwamukela ku Xhumana nathiokwenoma yiluphi uhlobo lombuzo.
