Iyo optical fiber connector
Iyo fiber optic yekubatanidza ine faibha uye plug kumagumo ese efiber. Iyo plug ine pini uye peripheral yekuvhara chimiro.Maererano neakasiyana nzira dzekukiya, fiber connectors inogona kuiswa muFC type, SC type, LC type, ST type uye KTRJ type.
Iyo FC yekubatanidza inotora shinda yekukiya michina uye ndeye optical fiber inotakurika yekubatanidza inova yekutanga uye yakanyanya kushandiswa kugadzirwa.
SC ijoint rectangular rakagadzirwa neNTT. Inogona kuiswa zvakananga uye kubviswa pasina tambo yekubatanidza. Kana ichienzaniswa neFC yekubatanidza, ine diki yekuvhiya nzvimbo uye iri nyore kushandisa. Low-end Ethernet zvigadzirwa zvakajairika.
Iyo ST connector yakagadzirwa neAT & T uye inoshandisa bayonet locking mechanism.Iyo mikuru parameter zviratidzo zvakaenzana neFC uye SC connectors, asi hazviwanzoitiki mumashandisirwo emakambani. Iwo anowanzo shandiswa muma-multi-mode madivayiri uye anoshandiswa kakawanda kana akasungirirwa nemichina yevamwe vanogadzira.
Mapini eKTRJ akagadzirwa nepurasitiki uye anogadzikwa nemapini esimbi. Sezvo huwandu hwekuiswa uye kubviswa hunowedzera, nzvimbo dzekubatanidza dzinopfeka uye kupera, uye kugadzikana kwenguva refu hakuna kunaka senge ceramic pini yekubatanidza.
Kuziva kwe optical fiber
An optical fiber is conductor inotumira mafungu echiedza.Optical fiber inogona kugoverwa kuva single mode fiber uye multimode fiber kubva kumagetsi emagetsi.
Mune imwe-modhi fiber, kufambisa kwechiedza kune imwe chete yakakosha nzira, izvo zvinoreva kuti chiedza chinoparidzirwa chete nechemukati mukati me fiber. kune yakakwirira-kumhanya, kureba-kure faibha kutaurirana.
Mune multimode fiber, kune akawanda mamodhi ekutapurirana optical. Nekuda kwekupararira kana kukanganisa, kuita kwekufambisa kweiyo optical fiber kwakashata, frequency band idiki, mwero wekutapurirana idiki, uye chinhambwe chipfupi.
Optical faibha hunhu parameters
Chimiro chefiber optical chakagadzirirwa nequartz fiber rod, uye dhayamita rekunze re multimode fiber uye imwechete mode fiber yekutaurirana zvese zviri 125.μm.
The slimming yakakamurwa kuita nzvimbo mbiri: Core uye Cladding layer.Iyo single-mode fiber core ine dhayamita yepakati ye8 ~ 10μm. Iyo multimode faibha musimboti dhayamita ine maviri akajairwa zvirevo, uye iyo dhayamita yepakati i62.5μm (US standard) uye 50μm (European standard).
Iyo interface fiber yakatarwa ine tsananguro yakadai: 62.5μm / 125μm multimode fiber, iyo 62.5μm inoreva dhayamita yepakati ye fiber, uye 125μm inoreva kureba kwekunze kwefiber.
Single mode fibers inoshandisa wavelength ye1310 nm kana 1550 nm.
Multimode fibers inoshandisa wavelength ye850 nm.
Single mode fiber uye multimode fiber inogona kusiyaniswa muvara. Iyo imwe-modhi fiber yekunze muviri ndeyeyero, uye iyo multimode fiber yekunze muviri ndeyeorenji-tsvuku.
Gigabit Optical port
Gigabit optical ports inogona kushanda mune zvose zvekumanikidzirwa uye auto-negotiated modes.Mune 802.3 tsanangudzo, Gigabit optical port inotsigira 1000M chete kumhanya uye inotsigira full-duplex (Yakazara) uye hafu-duplex (Half) duplex modes.
Musiyano wakanyanya kukosha pakati pekutaurirana-otomatiki uye kumanikidza ndewekuti kodhi yekodhi inotumirwa apo vaviri vacho vakagadzira chinongedzo chemuviri chakasiyana. Iyo otomatiki-yekutaurirana modhi inotumira iyo / C/ kodhi, inova iyo yekumisikidza kodhi rwizi, uye iyo yekumanikidza modhi inotumira / I / kodhi, inova isina basa rukova.
Gigabit optical port self-yegotiation process
Chekutanga: ese magumo akaiswa kune otomatiki-yekutaurirana modhi
Iwo mapato maviri anotumirana / C / kodhi rwizi. Kana matatu akafanana / C / makodhi akagamuchirwa zvakatevedzana uye iyo yakagamuchirwa kodhi rwizi inoenderana nemaitiro ekushanda ekupera kwenzvimbo, rimwe bato rinodzosa a / C/ kodhi ine Ack mhinduro. Mushure mekugamuchira ruzivo rweAck, wezera anofunga kuti vaviri vacho vanogona kutaurirana uye kuseta chiteshi kune iyo UP state.
Chechipiri: imwe magumo akaiswa kune otomatiki-kutaurirana, imwe magumo inoiswa kune yekumanikidza
Iyo auto-yekutaurirana yekupedzisira inotumira /C/rukova, uye iyo yekumanikidza yekupedzisira inotumira iyo /I/rukova. Mhedziso yekumanikidza haigone kupa wezera ruzivo rwekutaurirana kwemagumo emunharaunda, uye haigoni kudzorera mhinduro yeAck kune vezera. Nokudaro, iyo auto-negotiation terminal DOWN.Zvisinei, iyo yekumanikidza kuguma pachayo inogona kuziva iyo / C / kodhi, uye funga kuti peer magumo ichiteshi chinozvifananidza pachayo, saka yakananga chiteshi chenzvimbo kune UP state.
Chechitatu: ese magumo akaiswa kune inosungirwa modhi
Mapato maviri aya anotumirana / ini / hova. Mushure mekugamuchira /I/rukova, wezera anoona kuti vezera ndiro chiteshi chinofanana nevezera.
Ndeupi musiyano uripo pakati pemultimode uye singlemode fiber?
Multimode:
Fibers dzinogona kufamba kubva kumazana kusvika kuzviuru zvemodhi dzinonzi multimode (MM) fibers.Maererano nekupararira kweradial ye refractive index mukatikati uye kuvhara, inogona kuparadzaniswa zvakare kuita nhanho multimode fiber uye zvishoma nezvishoma multimode fiber.Zvinenge zvose. multimode fibers i 50/125 μm kana 62.5/125 μm muhukuru, uye bandwidth (huwandu hwemashoko anoparadzirwa nefiber) inowanzoita 200 MHz kusvika 2 GHz. Multimode optical transceivers inogona kutakura kusvika kumakiromita mashanu ekufambisa pamusoro pe multimode fiber. . A light emitting diode kana laser inoshandiswa semwenje sosi.
Single mode:
A fiber inogona kuparadzira imwe chete mode inonzi single mode fiber.Iyo yakajairwa single mode (SM) fiber refractive index profile yakafanana nedanho refiber, kunze kwekuti iyo dhayamita yepakati idiki zvakanyanya kupfuura multimode fiber.
Saizi yeiyo single mode fiber ndeye 9-10 / 125μm uye ine bandwidth isingagumi uye maitiro ekurasikirwa kwepasi kudarika multimode fiber.Single-mode optical transceivers inowanzoshandiswa kutenderera kure kure, dzimwe nguva inosvika 150 kusvika ku200 makiromita. Ma LED ane yakamanikana LD kana spectral mitsara anoshandiswa sechiedza sosi.
Kusiyana uye kubatana:
Zvishandiso zve-single-mode zvinowanzoshanda pane ese ma-single-mode fibers uye multimode fibers, nepo multimode michina inogumira kushanda pamultimode fibers.