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Nzira yekuwana sei makumi emakiromita e-ultra-refu-refu kutapurirana?Nemabhokisi madiki maviri?Kurumidza kuunganidza ruzivo mapoinzi!

Kana zvasvika pakuendesa kure-kure, tichifunga nezvemutengo, mutyairi wekare anotanga kufunga nezvezvinhu zviviri: fiber optic transceivers uye mabhiriji.Ne fiber optics, shandisa transceivers.Kana pasina optical fiber, zvinoenderana nekuti iyo chaiyo nharaunda inogona kubatana nebhiriji.
Anopfuura makiromita gumi uye gumi nemaviri emakiromita, asi zvakare kuve nechokwadi chekugadzika uye kwakavimbika kutapurirana, optical fiber yakakosha.
Nhasi, ngatitaure nezve inotungamira mhinduro mune optical fiber kutaurirana - optical fiber transceiver.
Transceiver chishandiso chekushandura chiratidzo, chinowanzonzi fiber optic transceiver.Kubuda kwe optical fiber transceivers inoshandura masaini akamonyoroka emagetsi masaini uye masaini masaini kune mumwe nemumwe, kuve nechokwadi chekufambiswa kwakanaka kwemapaketi edata pakati pemambure maviri, uye panguva imwe chete ichiwedzera muganhu wekutenderera wetiweki kubva ku100 metres waya dzemhangura kusvika ku100. makiromita (single mode fiber).
Nekuenderera mberi kwekuvandudza tekinoroji, yave maitiro azvino kuti high-speed serial VO tekinoroji inotsiva yechinyakare parallel I/O tekinoroji.Iyo inokurumidza kufambirana nebhazi inomhanya ndeye 133 MB/s yeATA7.Chiyero chekufambisa chakapihwa neSATA1.0 yakatarwa chakabudiswa muna 2003 chasvika 150 MB/s, uye theoretical speed yeSATA3.0 yasvika 600 MB/s.Kana mudziyo uchishanda nekumhanya kwazvo, bhazi rakafanana rinogona kukanganiswa uye crosstalk, izvo zvinoita kuti wiring ive yakaoma.Iko kushandiswa kwema serial transceivers kunogona kurerutsa dhizaini yekumisikidza uye kuderedza huwandu hwezvibatanidza.Serial interfaces zvakare inoshandisa simba shoma pane parallel ports ine imwechete bhazi bandwidth.Uye iyo nzira yekushanda yemudziyo inoshandurwa kubva kuparallel kuendesa kune serial kutapurirana, uye serial yekumhanyisa inogona kupetwa kaviri sezvo frequency inowedzera.
FPGA-yakavakirwa yakamisikidzwa Gb yekumhanyisa nhanho uye yakaderera-simba ekuvaka mabhenefiti, inoita kuti vagadziri vashandise inoshanda EDA maturusi ekukurumidza kugadzirisa dambudziko reprotocol uye nekukurumidza shanduko.Nekushandiswa kwakakura kweFPGA, iyo transceiver inosanganiswa muFPGA, iyo yave nzira inoshanda yekugadzirisa dambudziko rekumhanya kwemidziyo yekumhanyisa.
High-speed transceivers inoita kuti zvikwanise kuendesa huwandu hwakawanda hwe data point-to-point.Iyi serial yekutaurirana tekinoroji inoshandisa yakazara chiteshi kugona kweiyo nzira yekutapurirana uye inoderedza huwandu hweinodiwa nzira dzekufambisa uye pini dzemudziyo zvichienzaniswa nemabhazi edata anoenderana, nekudaro zvichideredza kutaurirana.mutengo.A transceiver ane basa rakanakisa anofanirwa kunge aine zvakanakira kuderera kwesimba rekushandisa, diki diki, nyore kugadzirisa, uye hunyanzvi hwepamusoro, kuitira kuti igone kuiswa nyore muhurongwa hwebhazi.Mune yakakwira-speed serial data transmission protocol, kuita kweiyo transceiver inoita basa rakasarudzika muyero yekufambiswa kweiyo bhasi interface, uye zvakare inokanganisa kushanda kweiyo bhasi interface system kune imwe nhanho.Tsvagiridzo iyi inoongorora kuzadzikiswa kweiyo high-speed transceiver module paFPGA papuratifomu, uye inopawo ratidziro inobatsira yekuzadzikiswa kweakasiyana-siyana akakwira-serial protocol.
Iri bhokisi diki rine yakanyanya kuratidzwa mwero muhurefu hwekutapurirana chirongwa, uye inogona kazhinji kuoneka mukutarisa kwedu, isina waya, optical fiber kuwana uye zvimwe zviitiko.
kushandisa sei
Optical fiber transceivers anowanzo shandiswa ari maviri maviri, uye anoiswa pamagumo ekupinda (ayo anogona kubatanidzwa kune zviteshi zvakaita semakamera, APs, uye maPC kuburikidza nekuchinja) uye kure kugashira magumo (senge komputa kamuri / yepakati control room, etc. ., hongu, inogona zvakare kushandiswa kuwana.terminal), nokudaro kuvaka yakaderera-latency, yakakwirira-kumhanya uye yakagadzikana yekutaurirana zambuko kune ese ari maviri.
Mumusimboti, chero bedzi iyo tekinoroji yakatarwa senge chiyero, wavelength, faibha mhando (seyakafanana imwechete-modhi imwe-fiber chigadzirwa, kana yakafanana single-modhi dual-fiber) inowirirana, mhando dzakasiyana dzakafananidzwa, uye kunyange. imwe mugumo we fiber transceiver uye imwe mugumo we optical module inogona kuwanikwa.kutaurirana.Asi isu hatizvikurudzire.
Single uye Dual Fiber
Iyo single-fiber transceiver inotora tekinoroji yeWDM (wavelength division multiplexing), imwe mugumo inotumira wavelength 1550nm, inogamuchira wavelength 1310nm, uye imwe magumo inotumira 1310nm uye inogamuchira 1550nm, kuitira kuti uone data inogamuchira uye kutumira pane imwe optical fiber.
Naizvozvo, pane imwe chete yekuona chiteshi pane iyi mhando ye transceiver, uye iyo migumo miviri yakafanana chaizvo.Kuti usiyanise, zvigadzirwa zvinowanzo zivikanwa neA uye B magumo.
Single fiber transceiver (inoratidzwa pairi, zero imwe)
Iwo maoptical ports e-dual-fiber transceiver "peya imwe" - chiteshi chekutumira chakanyorwa neTX + chiteshi chekugamuchira chakanyorwa neRX, imwe mugumo iviri, uye mumwe nemumwe kutumira uye kugamuchira vanoita mabasa avo.Iwo wavelengths eTX neRX akafanana, ese ari 1310nm.
Dual-fiber transceiver (inoratidzwa pairi, zero imwe)
Parizvino, mainstream single-fiber zvigadzirwa pamusika.Panyaya yekuenzaniswa kwekugona kutapurirana, ma-single-fiber transceivers ayo "anochengetedza mutengo wefiber imwe" zviri pachena kuti anonyanya kufarirwa.

Singlemode uye Multimode
Kusiyana pakati pe-single-mode optical fiber transceivers uye multi-mode optical fiber transceivers iri nyore, kureva, musiyano pakati pe-single-mode optical fiber uye multi-mode optical fiber.
Iyo yepakati dhayamita ye-single-mode fiber idiki (imwe chete modhi yechiedza inobvumirwa kupararira), kupararira kudiki, uye kunopesana-kupindira.Iyo yekufambisa kureba yakakwira zvakanyanya kupfuura iyo yakawanda-modhi fiber, iyo inogona kusvika anopfuura 20 makiromita kana kunyange mazana emakiromita.Kazhinji inoshandiswa mukati memakiromita maviri.
Ndizvo chaizvo nekuti dhayamita yepakati ye single-mode fiber idiki, danda rakaoma kudzora, uye inodhura-laser inodiwa sechiedza sosi (multi-mode fiber inowanzo shandisa LED mwenje sosi), saka mutengo uri. yakakwirira kupfuura iyo ye-multi-mode fiber, iyo inodhura-inoshanda.
Parizvino, kune akawanda-single-modhi transceiver zvigadzirwa pamusika.Multi-mode data center applications dzakawanda, core equipment to core equipment, short-distance hombe-bandwidth kutaurirana.
matatu akakosha parameters
1. Kumhanya.Kune Fast uye Gigabit zvigadzirwa zviripo.
2. Kuendesa kure.Kune zvigadzirwa zvemakiromita akati wandei uye makumi emakiromita.Mukuwedzera kune chinhambwe pakati pemigumo miviri (optical cable kureba), usakanganwa kutarisa chinhambwe kubva pachiteshi chemagetsi kuenda kuchinjika.Mupfupi zviri nani.
3. Mhando yemhando yefiber.Single-mode kana multi-mode, single-fiber kana multi-fiber.


Nguva yekutumira: Mar-17-2022