Chibvumirano cheQSFP-DD yakawanda-source chinocherekedza matatu duplex optical connectors: iyo CS, SN, uye MDC.
US Conec's MDC yekubatanidza inowedzera density nechinhu chetatu pamusoro peLC connectors.Iyo mbiri-fiber MDC inogadzirwa ne 1.25-mm ferrule tekinoroji.
NaPatrick McLaughlin
Anenge makore mana apfuura, boka revatengesi ve13 rakagadzira QSFP-DD (Quad Small Form-factor Pluggable Double Density) multi-source agreement (MSA) Group, nechinangwa chekugadzira kaviri-density QSFP optical transceiver.Mumakore kubva pakuvambwa kwayo, boka reMSA rakagadzira zvakatemwa zveQSFPs kutsigira mazana maviri uye 400-Gbit/sec Ethernet application.
Iyo yapfuura-chizvarwa tekinoroji, QSFP28 modules, inotsigira 40- uye 100-Gbit Ethernet application.Vane nzira ina dzemagetsi dzinogona kushanda pa10 kana 25 Gbits/sec.Boka reQSFP-DD rakagadzira zvirevo zvenzira sere dzinoshanda kusvika ku25 Gbits/sec kana 50 Gbits/sec-inotsigira 200 Gbits/sec uye 400 Gbits/sec, zvichiteerana.
Muna Chikunguru 2019 boka reQSFP-DD MSA rakaburitsa vhezheni 4.0 yeCommon Management Interface Specification (CMIS).Iri boka rakaburitsawo vhezheni 5.0 yeiyo hardware yakatarwa.Boka racho rakatsanangura panguva iyoyo, "Sezvo kugamuchirwa kwe400-Gbit Ethernet kuchikura, CMIS yakagadzirirwa kuvhara zvakasiyana-siyana zvemamodule fomu zvinhu, kushanda uye kushandiswa, kubva kune passive copper cable magungano kusvika kuDWDM yakabatana [dense wavelength-division multiplexing. ] modules.CMIS 4.0 inogona kushandiswa seyakajairwa interface nemamwe 2-, 4-, 8-, uye 16-lane fomu zvinhu, kuwedzera kuQSFP-DD.
Pamusoro pezvo, boka racho rakaona kuti vhezheni 5.0 yezvimiro zvayo zvehardware "inosanganisira zvitsva zvinongedzo zvekubatanidza, SN uye MDC.QSFP-DD ndiyo yekutanga 8-lane data centre module fomu chinhu.Masisitimu akagadzirirwa QSFP-DD modules anogona kunge ari kumashure-anoenderana nearipo QSFP fomu zvinhu uye anopa kuchinjika kwakanyanya kune vashandisi vekupedzisira, network vagadziri vepuratifomu uye vanobatanidza.
Scott Sommers, nhengo yekutanga uye sachigaro weQSFP-DD MSA, akati, "Kuburikidza nekudyidzana kwakasimba nemakambani edu eMSA, isu tinoenderera mberi nekuyedza kudyidzana kwemamodule evatengesi vakawanda, zvibatanidza, makeji uye tambo dzeDAC kuti tisimbise simba. ecosystem.Isu tinoramba takazvipira kugadzira uye kupa chizvarwa chinotevera madhizaini anoshanduka nekuchinja tekinoroji mamiriro. "
Iyo SN neMDC yekubatanidza yakabatana neCS chinongedzo senzvimbo yekuona inocherechedzwa neboka reMSA.Ese ari matatu ma-duplex ekubatanidza ayo anoratidzirwa sediki diki fomu factor (VSFF).
MDC connector
US Conecinopa EliMent brand MDC yekubatanidza.Iyo kambani inotsanangura EliMent se "yakagadzirirwa kumisa multimode uye singlemode fiber tambo dzinosvika 2.0 mm mudhayamita.Iyo MDC yekubatanidza inogadzirwa neyakasimbiswa 1.25-mm ferrule tekinoroji inoshandiswa muindasitiri-yakajairwa LC optical connectors, inosangana neIEC 61735-1 Giredhi B yekuisa kurasikirwa zvinodiwa.
US Conec inoenderera mberi ichitsanangura, "MaMSA mazhinji ari kusimukira akatsanangura zvivakwa zvechiteshi zvinoda duplex optical yekubatanidza ine diki tsoka pane yeLC yekubatanidza.Ukuru hwakaderedzwa hweMDC connector huchabvumira imwe-array transceiver kugamuchira tambo dzakawanda dzeMDC patch, iyo imwe neimwe inowanikwa zvakananga pane transceiver interface.
"Mafomu matsva achatsigira tambo ina dzeMDC muQSFP tsoka uye mbiri dzeMDC imwe neimwe muSFP tsoka.Iyo yakawedzera yekubatanidza density pa module/panel inoderedza saizi yehardware, izvo zvinotungamira mukuderedzwa mari uye mari yekushandisa.Iyo 1-rack-unit imba inogona kugarisa 144 fibers ine LC duplex connectors uye adapters.Kushandisa diki MDC yekubatanidza kunowedzera huwandu hwefiber kusvika 432 munzvimbo imwechete RU.
Kambani iyi inoratidzira dzimba dzakarukwa dzeMDC, kuumbwa kwepamusoro-soro, uye kureba kwekubatana-ichiti maitiro aya anobvumira MDC kudarika zvakafanana neTelcordia GR-326 zvinodiwa seLC connector.MDC inosanganisira push-pull boot iyo inobvumira vanoisa kuisa uye kubvisa chinongedzo munzvimbo dzakasimba, dzakavharirwa pasina kukanganisa vanobatanidza vavakidzani.
MDC inogonesa zvakare kudzoreredza polarity, pasina kufumura kana kumonyorora mafibhi."Kuti uchinje polarity," US Conec inotsanangura, "dhonza bhutsu kubva pane yekubatanidza imba, tenderedza bhutsu 180 madhigirii, uye unganidzazve gungano rebhutsu kumashure kwekonitani yeimba.Polarity mamaki kumusoro uye padivi pechibatanidza zvinopa ziviso yeyakadzoserwa yekubatanidza polarity. "
US Conec payakaunza chinongedzo cheMDC muna Kukadzi 2019, kambani iyi yakati, "Iyi dhizaini yechizvino-zvino inounza nguva itsva mukubatana kwemafiber maviri nekuunza hunyoro husingaenzaniswi, kuisa nyore / kubvisa, kurongeka kwemunda uye zvakakwana. mutakuri-giredhi kuita kune EliMent mhando imwe-fiber yekubatanidza portfolio.
"Madhibhi matatu eMDC anokwana akananga mune yakajairwa mapaneru kuvhurwa kwe duplex LC adapter, kuwedzera fiber density nechikamu chetatu," US Conec yakaenderera mberi."Chimiro chitsva chichatsigira tambo ina dzeMDC muQSFP tsoka uye tambo mbiri dzeMDC muSFP tsoka."
CS uye SN
Iyo CS uye SN zvibatanidza zvigadzirwa zveSenko Advanced Components.Muchibatanidza cheCS, maferru anogara padivi-ne-padivi, akafanana mukugadzirisa kune LC connector asi idiki muhukuru.MuSN connector, maferrules akaturikidzana kumusoro-uye-pasi.
Senko anosuma CS muna 2017. Mupepa jena rakanyorwa neOptolink, Senko anotsanangura, "Kunyange zvazvo LC duplex connectors inogona kushandiswa muQSFP-DD transceiver modules, iyo bandwidth yekufambisa inogona kugumira kune imwechete WDM injini yekugadzira kana kushandisa 1:4 mux/demux kuti isvike 200-GbE kutapurirana, kana 1:8 mux/demux ye400 GbE.Izvi zvinowedzera mutengo wetransceiver uye kutonhora kunodiwa pane transceiver.
"Iyo diki yekubatanidza tsoka yeCS yekubatanidza inobvumira maviri acho kuiswa mukati meQSFP-DD module, iyo LC duplex yekubatanidza haigone kuita.Izvi zvinobvumira maviri maviri WDM injini dhizaini uchishandisa 1: 4 mux / demux kusvika kune 2 × 100-GbE kutapurirana, kana 2 × 200-GbE kutapurirana pane imwechete QSFP-DD transceiver.Pamusoro peQSFP-DD transceivers, CS connector inowiriranawo neOSFP [octal diki fomu-factor pluggable] uye COBO [Consortium for On Board Optics] modules.”
Dave Aspray, Senko Advanced Components 'European sales manager, munguva pfupi yapfuura akataura nezvekushandiswa kweCS uye SN connectors kuti isvike kumhanya kusvika ku400 Gbits / sec."Tiri kubatsira kudzikamisa tsoka dzenzvimbo dzakakwirira-density data data nekudzikisa mafiber connectors," akadaro."Nzvimbo dzazvino dzedhata dzinoshandisa musanganiswa weLC neMPO zvikochekera seyakanyanya-density mhinduro.Izvi zvinochengetedza nzvimbo yakawanda zvichienzaniswa neyakajairwa SC neFC zvinongedzo.
“Kunyangwe maMPO ma-connectors achigona kuwedzera huwandu pasina kuwedzera tsoka, anonetsa kugadzira uye kunetsa kuchenesa.Isu ikozvino tinopa huwandu hwema-ultra-compact connectors ayo anogara akasimba mumunda sezvo akagadzirwa achishandisa tekinoroji yakaratidza, ari nyore kubata uye kuchenesa, uye anopa akawanda mabhenefiti ekuchengetedza nzvimbo.Pasina kupokana iyi ndiyo nzira yekumberi. "
Senko anotsanangura iyo SN yekubatanidza seyekupedzisira-yakakwirira-density duplex mhinduro ine 3.1-mm pitch.Inogonesa kubatana kwe8 fibers muQSFP-DD transceiver.
"Nhasi MPO-based transceivers ndiwo musimboti we data center topography, asi data center dhizaini iri kushandura kubva kune hierarchical modhi kuenda kune yeshizha-uye-muzongoza modhi," Aspray akaenderera mberi."Mumuenzaniso weshizha-ne-muzongoza, zvinodikanwa kupaza mitsara yega yega kuitira kuti ubatanidze masiwichi emuzongoza kune chero mashizha emashizha.Uchishandisa MPO zvibatanidza, izvi zvinoda imwe patch panel yakaparadzana ine kana makaseti ekuputika kana tambo dzekupwanya.Nekuti iyo SN-yakavakirwa transceivers yakatopazwa nekuva ne4 munhu SN zvibatanidza pane iyo transceiver interface, inogona kugadzirwa zvakananga.
"Shanduko dzinoitwa nevashandisi kunzvimbo dzavo dzedata ikozvino dzinogona kuvadzivirira pakuwedzera kusingadzivisike mukudiwa, ndosaka iri zano rakanaka kuti vashandisi vafunge nezve kuendesa yakakwira-density mhinduro senge CS neSN zvibatanidza-kunyangwe zvisiri izvo zvakakosha. kudhizaini yavo yazvino data center."
Patrick McLaughlinndiye mupepeti wedu mukuru.
Nguva yekutumira: Mar-13-2020
