{"id":14726,"date":"2019-09-11T00:00:00","date_gmt":"2019-09-10T23:00:00","guid":{"rendered":"https:\/\/www.sylex.sk\/ktora-konektivita-sluzi-pre-400g\/"},"modified":"2024-06-05T17:57:41","modified_gmt":"2024-06-05T16:57:41","slug":"ktora-konektivita-sluzi-pre-400g","status":"publish","type":"post","link":"https:\/\/www.sylex.sk\/sk\/ktora-konektivita-sluzi-pre-400g\/","title":{"rendered":"Ktor\u00e1 konektivita sl\u00fa\u017ei pre 400G?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"14726\" class=\"elementor elementor-14726 elementor-6405\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f4e250a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f4e250a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-426efce3\" data-id=\"426efce3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6bf052f elementor-widget elementor-widget-image\" data-id=\"6bf052f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"480\" height=\"198\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2023\/08\/Is-the-24-fibre-connectivity-method-really-clear.jpg\" class=\"attachment-large size-large wp-image-10235\" alt=\"\" srcset=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2023\/08\/Is-the-24-fibre-connectivity-method-really-clear.jpg 480w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2023\/08\/Is-the-24-fibre-connectivity-method-really-clear-300x124.jpg 300w\" sizes=\"(max-width: 480px) 100vw, 480px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9da6f5f elementor-widget elementor-widget-text-editor\" data-id=\"9da6f5f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-1201 size-full\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2018\/09\/Is-the-24-fibre-connectivity-method-really-clear.jpg\" alt=\"\" width=\"480\" height=\"198\"> <strong>Mo\u017enosti zv\u00fd\u0161enia r\u00fdchlosti prenosu d\u00e1t<\/strong> Vo v\u0161etk\u00fdch oblastiach, v ktor\u00fdch sa hovor\u00ed o optickom prenose, je vidite\u013en\u00fd n\u00e1rast takzvan\u00e9ho &#8222;G&#8220;. E\u0161te pred p\u00e1r rokmi bolo hlavnou t\u00e9mou riadenie prenosu d\u00e1t 10G, dnes sa 400G jav\u00ed ako nevyhnutnos\u0165. Je to sp\u00f4soben\u00e9 najm\u00e4 diferenci\u00e1ciou typov d\u00e1tov\u00fdch centier, kde okrem zn\u00e1mych centr\u00e1lnych, ako s\u00fa podnikov\u00e9 a koloka\u010dn\u00e9, vznikli aj nov\u00e9 typy, ako s\u00fa okrajov\u00e9, cloudov\u00e9 a hyper\u0161k\u00e1lov\u00e9. Najm\u00e4 v druhom pr\u00edpade sa o\u010dak\u00e1va nasadenie a spr\u00e1va najvy\u0161\u0161ej dostupnej prenosovej r\u00fdchlosti. Pod\u013ea progn\u00f3zy spolo\u010dnosti CISCO sa pribli\u017ene 50 % v\u0161etk\u00fdch serverov a prev\u00e1dzky d\u00e1tov\u00fdch centier bude vyu\u017e\u00edva\u0165 v hyper\u0161k\u00e1lov\u00fdch d\u00e1tov\u00fdch centr\u00e1ch. Chrbticov\u00e1 sie\u0165 bude vy\u017eadova\u0165 pripojenie v rozsahu od 100G do 800G, zatia\u013e \u010do pr\u00edstup na poslednej m\u00edli bude zameran\u00fd na rozsah od 50G do 200G. V\u00e4\u010d\u0161ina sa o\u010dak\u00e1va v jednom re\u017eime, av\u0161ak bud\u00fa potrebn\u00e9 aj viacre\u017eimov\u00e9 pripojenia s ve\u013emi vysokou r\u00fdchlos\u0165ou. Po\u010det gigabitov za sekundu v komunika\u010dnom kan\u00e1li mo\u017eno dosiahnu\u0165 r\u00f4znymi sp\u00f4sobmi. Pod\u010diarkuje to najm\u00e4 obrovsk\u00e9 mno\u017estvo r\u00f4znych doh\u00f4d o viacer\u00fdch zdrojoch (MSA). Takmer na ka\u017edom v\u00fdznamnom podujat\u00ed v oblasti optick\u00fdch vl\u00e1kien sa vytvor\u00ed nov\u00e9 alebo nieko\u013eko nov\u00fdch, ktor\u00e9 vydl\u00e1\u017edia cestu novej potenci\u00e1lnej met\u00f3de. R\u00f4zne koncepcie zv\u00fd\u0161enia r\u00fdchlosti komunika\u010dn\u00fdch kan\u00e1lov s\u00fa zalo\u017een\u00e9 na jednej alebo viacer\u00fdch z nasleduj\u00facich mo\u017enost\u00ed, pri\u010dom ka\u017ed\u00e1 z nich m\u00e1 svoje \u0161pecifik\u00e1, obmedzenia a v\u00fdzvy:<\/p>\n<ul>\n<li>Bitov\u00e1 r\u00fdchlos\u0165 &#8211; schopnos\u0165 akt\u00edvnej \u010dasti generova\u0165 bity<\/li>\n<li>Paraleliz\u00e1cia &#8211; zn\u00e1sobenie fyzick\u00fdch ciest pou\u017e\u00edvan\u00fdch na prenos \u00fadajov<\/li>\n<li>Sveteln\u00fd multiplex &#8211; viac vlnov\u00fdch d\u013a\u017eok pou\u017eit\u00fdch v tom istom fyzickom vl\u00e1kne<\/li>\n<li>Modul\u00e1cia &#8211; viac bitov na symbol<\/li>\n<li>Priestorov\u00e9 multiplexovanie &#8211; viac prepravn\u00fdch ciest (jadier vl\u00e1kien) v r\u00e1mci jedn\u00e9ho vl\u00e1kna<\/li>\n<li>Polariz\u00e1cia &#8211; pou\u017eitie 1 alebo 2 polariz\u00e1ci\u00ed<\/li>\n<\/ul>\n<p><strong>Rozhrania z\u00e1visl\u00e9 od m\u00e9dia<\/strong> Ako bolo uveden\u00e9 vy\u0161\u0161ie, r\u00fdchlos\u0165 prenosu d\u00e1t 400G sa uva\u017euje v jednom\u00f3dovej a viacmodovej verzii. Napriek tomu, \u017ee r\u00fdchlos\u0165 prenosu d\u00e1t je rovnak\u00e1, na skuto\u010dn\u00e9 pripojenie k sieti sa pou\u017e\u00edvaj\u00fa r\u00f4zne medi\u00e1lne rozhrania. Medzi mo\u017enosti, ktor\u00e9 treba zv\u00e1\u017ei\u0165, patria konektory s jedn\u00fdm vl\u00e1knom (typick\u00fd pr\u00edklad: konektor LC) alebo konektory s viacer\u00fdmi vl\u00e1knami (typick\u00fd pr\u00edklad: konektor MPO). V pr\u00edpade jednovidov\u00e9ho pripojenia sa pou\u017e\u00edva bu\u010f multiplex s delen\u00edm vlnovej d\u013a\u017eky (s PAM4 a konektorom s jedn\u00fdm vl\u00e1knom), alebo PAM4 plus prevodovka a konektor s viacer\u00fdmi vl\u00e1knami. V s\u00fa\u010dasnosti je multim\u00f3dov\u00fd pr\u00edstup zalo\u017een\u00fd na viacvl\u00e1knovom konektore s r\u00f4znym po\u010dtom vl\u00e1kien, ktor\u00e9 pokr\u00fdvaj\u00fa \u0161pecifick\u00e9 po\u017eiadavky. Sign\u00e1l m\u00f4\u017ee by\u0165 tie\u017e modulovan\u00fd PAM4, ale nie vo v\u0161etk\u00fdch pr\u00edpadoch. V tabu\u013eke \u010d. 1 je uveden\u00fd preh\u013ead existuj\u00facich mo\u017enost\u00ed.<\/p>\n<p><br>  <img decoding=\"async\" class=\"wp-image-10273 aligncenter\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/TABLE_1.jpg\" alt=\"\" width=\"829\" height=\"266\"><\/p>\n<p>Z h\u013eadiska &#8222;hor\u00facich&#8220; pripojite\u013en\u00fdch transceiverov s\u00faperia o podiel na trhu dvaja rivali QSFP-DD a OSFP. Ka\u017ed\u00fd z nich m\u00e1 svoje v\u00fdhody a nev\u00fdhody, ale oba maj\u00fa spolo\u010dn\u00e9 obmedzenie &#8211; spr\u00e1vnu funk\u010dnos\u0165 do 2 000 m. Existuje e\u0161te jedna mo\u017enos\u0165, COBO, s 8 alebo 16 linkami s 50 gigabitov\u00fdm PAM4 podporuj\u00facim 400G alebo 800G. Pre aplik\u00e1cie na ve\u013ek\u00e9 vzdialenosti je jedin\u00fdm vhodn\u00fdm rie\u0161en\u00edm CFP8, ktor\u00fd m\u00e1 dostato\u010dn\u00fd v\u00fdkon na pokrytie. V ka\u017edom pr\u00edpade musia by\u0165 vysiela\u010de prepojen\u00e9 vhodnou optickou kabel\u00e1\u017eou. Ofici\u00e1lne \u0161pecifik\u00e1cie vysiela\u010dov definuj\u00fa tieto mo\u017enosti optick\u00e9ho rozhrania:  <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10275 aligncenter\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/TABLE_2.jpg\" alt=\"\" width=\"835\" height=\"225\"> <b> <\/b>  Ke\u010f\u017ee konektor SN (SENKO) a konektor MDC (USCONEC) s\u00fa pomerne nov\u00e9, m\u00f4\u017eeme o\u010dak\u00e1va\u0165, \u017ee bud\u00fa nesk\u00f4r implementovan\u00e9 do v\u0161etk\u00fdch \u0161pecifik\u00e1ci\u00ed transceiverov. Spolo\u010dnos\u0165 COBO zva\u017euje rozhodnutie o zaraden\u00ed roz\u0161\u00edren\u00fdch nosn\u00edkov a typov konektorov so vzduchovou medzerou za predpokladu, \u017ee sp\u013a\u0148aj\u00fa stanoven\u00e9 po\u017eiadavky. Z uveden\u00e9ho preh\u013eadu jasne vypl\u00fdva, \u017ee hlavn\u00fa \u00falohu pri pripojen\u00ed st\u00e1le zohr\u00e1va viacvl\u00e1knov\u00fd konektor. <strong>Kvalita optickej trasy<\/strong> V pr\u00edpade projektov na zelenej l\u00fake je v\u00fdber konektorov definovan\u00fd zvolen\u00fdmi vysiela\u010dmi s oh\u013eadom na potenci\u00e1lny bud\u00faci prechod na vy\u0161\u0161iu r\u00fdchlos\u0165. V pr\u00edpade u\u017e nain\u0161talovanej infra\u0161trukt\u00fary je ide\u00e1lna situ\u00e1cia, ke\u010f sa vymenia len akt\u00edvne \u010dasti a kabel\u00e1\u017e sa zachov\u00e1. Pr\u00edkladom m\u00f4\u017ee by\u0165 prechod zo syst\u00e9mu 40G vyu\u017e\u00edvaj\u00faceho 12(8) konektorov MPO (4+4) pracuj\u00facich s r\u00fdchlos\u0165ou 10G na kan\u00e1l na syst\u00e9m 100G pracuj\u00faci s r\u00fdchlos\u0165ou 25G alebo dokonca a\u017e na syst\u00e9m 400G vyu\u017e\u00edvaj\u00faci 50G PAM4 na dvoch vlnov\u00fdch d\u013a\u017ekach. Ak to nie je mo\u017en\u00e9, na vyu\u017eitie nov\u00fdch vysiela\u010dov s vy\u0161\u0161ou r\u00fdchlos\u0165ou mo\u017eno pou\u017ei\u0165 <a href=\"https:\/\/www.sylex.sk\/?p=1693\">r\u00f4zne<\/a> migra\u010dn\u00e9 moduly, zv\u00e4zky hydra alebo \u0161peci\u00e1lne ventil\u00e1tory. V oboch pr\u00edpadoch &#8211; pri in\u0161tal\u00e1cii na zelenej l\u00fake alebo pri existuj\u00facej in\u0161tal\u00e1cii &#8211; je kvalita pou\u017eit\u00fdch konektorov nevyhnutnou s\u00fa\u010das\u0165ou spr\u00e1vne funguj\u00faceho syst\u00e9mu. Viacriadkov\u00e9 konektory s vysok\u00fdm po\u010dtom vl\u00e1kien (napr\u00edklad 2-riadkov\u00e9 12F alebo 2-riadkov\u00e9 16F) s\u00fa citlivej\u0161ie na cel\u00fd proces ukon\u010dovania, \u010do m\u00e1 priamy vplyv na optick\u00e9 parametre. Z\u00e1kazn\u00edci, ktor\u00ed s\u00fa zvyknut\u00ed pracova\u0165 s 12F MPO, \u010dasto o\u010dak\u00e1vaj\u00fa to ist\u00e9 aj od konektorov s vy\u0161\u0161\u00edm po\u010dtom vl\u00e1kien. Tieto o\u010dak\u00e1vania m\u00f4\u017ee splni\u0165 vyladen\u00fd proces zalo\u017een\u00fd na starostlivom v\u00fdbere le\u0161tiacich techn\u00edk a materi\u00e1lov. V grafoch 1 a\u017e 6 s\u00fa uveden\u00e9 skuto\u010dn\u00e9 rozdelenia hodn\u00f4t vlo\u017en\u00fdch str\u00e1t hlavn\u00fdch optick\u00fdch rozhran\u00ed. Na porovnanie s\u00fa zobrazen\u00e9 aj tradi\u010dn\u00e9 konektory MPO (fyzick\u00fd kontakt) a konektory MXC zalo\u017een\u00e9 na \u0161o\u0161ovke (roz\u0161\u00edren\u00fd l\u00fa\u010d) v multim\u00f3dovom variante. Treba spomen\u00fa\u0165, \u017ee konektory s \u0161o\u0161ovkami s\u00fa \u010doraz atrakt\u00edvnej\u0161ie, preto\u017ee ich v\u00fdkonnostn\u00e1 \u00farove\u0148 sa pribli\u017euje tradi\u010dn\u00fdm konektorom s fyzick\u00fdm kontaktom.  <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10277 aligncenter\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_1.jpg\" alt=\"\" width=\"533\" height=\"376\"> <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10279 aligncenter\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_2.jpg\" alt=\"\" width=\"527\" height=\"371\"> <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10281 aligncenter\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_3.jpg\" alt=\"\" width=\"529\" height=\"373\"> <img loading=\"lazy\" decoding=\"async\" class=\" wp-image-10283 aligncenter\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_4.jpg\" alt=\"\" width=\"530\" height=\"375\"> <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-10285 aligncenter\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_5.jpg\" alt=\"\" width=\"533\" height=\"379\"> <img loading=\"lazy\" decoding=\"async\" class=\" wp-image-10287 aligncenter\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_6.jpg\" alt=\"\" width=\"535\" height=\"380\">  V\u00fdber najvhodnej\u0161ieho typu vysiela\u010da, ktor\u00fd je vhodn\u00fd aj do bud\u00facnosti, je pravdepodobne najzlo\u017eitej\u0161ou \u00falohou pre projektantov a architektov d\u00e1tov\u00fdch centier. My v spolo\u010dnosti Sylex rob\u00edme v\u0161etko pre to, aby sme pon\u00fakali \u010dasti optick\u00e9ho rozhrania na najvy\u0161\u0161ej mo\u017enej \u00farovni, a tak zabezpe\u010dili, \u017ee ka\u017ed\u00fd vybran\u00fd transceiver bude fungova\u0165 spr\u00e1vne. \u010eal\u0161ie inform\u00e1cie z\u00edskate na <a href=\"mailto:sales@sylex.sk\">adrese sales@sylex.sk<\/a>. <strong>Odkazy<\/strong> [1] &#8222;COBO 8-Lane &amp; 16-Lane On-Board Optics Specification Release 1.1&#8220;, Consortium for On-Board Optics (COBO), 2018. [2] &#8222;OSFP OCTAL SMALL FORM FACTOR PLUGGABLE MODULE&#8220;, OSFP MSA, 2019. [3] &#8222;QSFP-DD Hardware Specification&#8220;, QSFP-DD MSA, 2018. <b>Eduard Koza &#8211; mana\u017e\u00e9r v\u00fdskumu a v\u00fdvoja<\/b> &#8211; <a class=\"internal-link\" title=\"Otvor\u00ed intern\u00e9 prepojenie v aktu\u00e1lnom okne\" href=\"https:\/\/www.sylex.sk\/?p=265\" target=\"_blank\" rel=\"noopener noreferrer\">Kontakt<\/a> Eduard Koza je mana\u017e\u00e9r v\u00fdskumu a v\u00fdvoja v spolo\u010dnosti Sylex. Za\u010d\u00ednal ako projektov\u00fd in\u017einier pre vysoko v\u00fdkonn\u00e9 meden\u00e9 zv\u00e4zky. V roku 2000 roz\u0161\u00edril svoje aktivity o pas\u00edvne produkty na prepojenie optick\u00fdch vl\u00e1kien a syst\u00e9my na sn\u00edmanie optick\u00fdch vl\u00e1kien. Na za\u010diatku tohto obdobia viedol najm\u00e4 viacer\u00e9 technologick\u00e9 transfery a zastre\u0161oval implement\u00e1ciu nov\u00fdch produktov do portf\u00f3lia spolo\u010dnosti. Nesk\u00f4r v spolo\u010dnosti zast\u00e1val funkciu mana\u017e\u00e9ra pre in\u017einierstvo a viedol technologick\u00e9 a in\u017einierske \u010dinnosti zodpovedn\u00e9 za prenos n\u00e1padov z\u00e1kazn\u00edkov do fin\u00e1lnych produktov. Jeho s\u00fa\u010dasn\u00e1 poz\u00edcia zah\u0155\u0148a riadenie novozaveden\u00fdch technick\u00fdch rie\u0161en\u00ed, pri\u010dom vyu\u017e\u00edva svoje poradensk\u00e9 schopnosti t\u00fdkaj\u00face sa prisp\u00f4soben\u00fdch produktov optick\u00fdch prepojen\u00ed.  <\/p>\n<p><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-395079e elementor-widget elementor-widget-image\" data-id=\"395079e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1621\" height=\"521\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_1.jpg\" class=\"attachment-full size-full wp-image-14727\" alt=\"\" srcset=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_1.jpg 1621w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_1-300x96.jpg 300w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_1-1024x329.jpg 1024w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_1-768x247.jpg 768w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_1-1536x494.jpg 1536w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_1-1320x424.jpg 1320w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_1-600x193.jpg 600w\" sizes=\"(max-width: 1621px) 100vw, 1621px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45a58d2 elementor-widget elementor-widget-text-editor\" data-id=\"45a58d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>From the \u201chot\u201d pluggable transceiver point of view, the two rivals QSFP-DD and OSFP are vying for market share. Each of them has its own pros and cons, but both have a common limitation \u2013 up to 2,000m proper functionality. There is one more option, the COBO one, with either 8 or 16 lanes with 50 gigabit PAM4 supporting 400G or 800G. For long distance applications the only suitable solution is CFP8, which has enough power to cover it.<br \/>In any case, the transceivers have to be interconnected with the appropriate fibre optic cabling. The official specifications of the transceivers define the following optical interface options:<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ef136d3 elementor-widget elementor-widget-image\" data-id=\"ef136d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1622\" height=\"438\" src=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_2.jpg\" class=\"attachment-full size-full wp-image-14728\" alt=\"\" srcset=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_2.jpg 1622w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_2-300x81.jpg 300w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_2-1024x277.jpg 1024w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_2-768x207.jpg 768w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_2-1536x415.jpg 1536w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_2-1320x356.jpg 1320w, https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Table_2-600x162.jpg 600w\" sizes=\"(max-width: 1622px) 100vw, 1622px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ab55ab elementor-widget elementor-widget-text-editor\" data-id=\"8ab55ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>As the SN connector (SENKO) and MDC connector (USCONEC) are quite new, we can expect that they will be implemented later to all the transceivers specs. COBO is weighing a decision to include the expanded beam and air-gap types of connectors, provided that they meet the defined requirements.<br \/>The overview above clearly shows that the multi-fibre connector still plays the major role for the connectivity.<\/p>\n<p><strong>Quality of optical path<\/strong><\/p>\n<p>For a greenfield projects, the choice of connectors is defined by the chosen transceivers with respect to the potential future migration to a higher speed. In the case of an already installed infrastructure, the ideal situation is where only the active parts are exchanged and the cabling is kept. An example would be a migration from the 40G system using 12(8) fibre MPO connectors (4+4) running at 10G per channel to a 100G system running at 25G or even up to a 400G system utilising 50G PAM4 at two wavelengths. If this is not possible, a <a href=\"https:\/\/www.oldweb.sylex.sk\/products\/interconnections\/mpo-mtp-interconnections\/\">variety<\/a> of migration modules, hydra harnesses or special fanouts can be used to utilise the new higher-rate transceivers.<\/p>\n<p>In both cases \u2013 greenfield or existing installation, the quality of the connectors used is an essential part of a properly working system. The high fibre count multi-row connectors (such as 2-row 12F or 2-row 16F) are more sensitive for the entire termination process, which has a direct impact on the optical parameters. Customers who are used to working with the 12F MPO performance level often expect the same from the higher fibre count connectors as well. A fine-tuned process based on the careful selection of polishing techniques and materials can fulfil these expectations. In charts 1 to 6 below, the real distributions of insertion loss values of the major optical interfaces are presented. For comparison, the traditional MPO (physical contact) and the lensed-based (expanded beam) MXC connectors in multimode option are also shown. It is worth mentioning that the lensed connectors are becoming more and more attractive as their performance level is getting closer to the traditional physical contact ones.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-338c7e7 elementor-widget elementor-widget-gallery\" data-id=\"338c7e7\" data-element_type=\"widget\" data-e-type=\"widget\" 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data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"338c7e7\" data-elementor-lightbox-title=\"Chart_1\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTQ3MzQsInVybCI6Imh0dHBzOlwvXC93d3cuc3lsZXguc2tcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMTlcLzA5XC9DaGFydF8xLmpwZyIsInNsaWRlc2hvdyI6IjMzOGM3ZTcifQ%3D%3D\">\n\t\t\t\t\t<div class=\"e-gallery-image elementor-gallery-item__image\" data-thumbnail=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Chart_1.jpg\" data-width=\"804\" data-height=\"568\" aria-label=\"\" role=\"img\" ><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__overlay\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<a class=\"e-gallery-item elementor-gallery-item elementor-animated-content\" href=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Chart_2.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"338c7e7\" data-elementor-lightbox-title=\"Chart_2\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTQ3MzMsInVybCI6Imh0dHBzOlwvXC93d3cuc3lsZXguc2tcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMTlcLzA5XC9DaGFydF8yLmpwZyIsInNsaWRlc2hvdyI6IjMzOGM3ZTcifQ%3D%3D\">\n\t\t\t\t\t<div class=\"e-gallery-image elementor-gallery-item__image\" data-thumbnail=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Chart_2.jpg\" data-width=\"808\" data-height=\"568\" aria-label=\"\" role=\"img\" ><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__overlay\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<a class=\"e-gallery-item elementor-gallery-item elementor-animated-content\" href=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Chart_3.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"338c7e7\" data-elementor-lightbox-title=\"Chart_3\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTQ3MzIsInVybCI6Imh0dHBzOlwvXC93d3cuc3lsZXguc2tcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMTlcLzA5XC9DaGFydF8zLmpwZyIsInNsaWRlc2hvdyI6IjMzOGM3ZTcifQ%3D%3D\">\n\t\t\t\t\t<div class=\"e-gallery-image elementor-gallery-item__image\" data-thumbnail=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Chart_3.jpg\" data-width=\"807\" data-height=\"570\" aria-label=\"\" role=\"img\" ><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__overlay\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<a class=\"e-gallery-item elementor-gallery-item elementor-animated-content\" href=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_4.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"338c7e7\" data-elementor-lightbox-title=\"CHART_4\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTQ3MzEsInVybCI6Imh0dHBzOlwvXC93d3cuc3lsZXguc2tcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMTlcLzA5XC9DSEFSVF80LmpwZyIsInNsaWRlc2hvdyI6IjMzOGM3ZTcifQ%3D%3D\">\n\t\t\t\t\t<div class=\"e-gallery-image elementor-gallery-item__image\" data-thumbnail=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_4.jpg\" data-width=\"805\" data-height=\"570\" aria-label=\"\" role=\"img\" ><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__overlay\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<a class=\"e-gallery-item elementor-gallery-item elementor-animated-content\" href=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_5.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"338c7e7\" data-elementor-lightbox-title=\"CHART_5\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTQ3MzAsInVybCI6Imh0dHBzOlwvXC93d3cuc3lsZXguc2tcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMTlcLzA5XC9DSEFSVF81LmpwZyIsInNsaWRlc2hvdyI6IjMzOGM3ZTcifQ%3D%3D\">\n\t\t\t\t\t<div class=\"e-gallery-image elementor-gallery-item__image\" data-thumbnail=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_5.jpg\" data-width=\"805\" data-height=\"572\" aria-label=\"\" role=\"img\" ><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__overlay\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t<a class=\"e-gallery-item elementor-gallery-item elementor-animated-content\" href=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_6.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"338c7e7\" data-elementor-lightbox-title=\"CHART_6\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTQ3MjksInVybCI6Imh0dHBzOlwvXC93d3cuc3lsZXguc2tcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMTlcLzA5XC9DSEFSVF82LmpwZyIsInNsaWRlc2hvdyI6IjMzOGM3ZTcifQ%3D%3D\">\n\t\t\t\t\t<div class=\"e-gallery-image elementor-gallery-item__image\" data-thumbnail=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/CHART_6.jpg\" data-width=\"807\" data-height=\"573\" aria-label=\"\" role=\"img\" ><\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-gallery-item__overlay\"><\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3d480ff elementor-widget elementor-widget-text-editor\" data-id=\"3d480ff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Selection of the most suitable and future-proof transceiver type is probably the most complicated task for designers and architects of data centres. We at Sylex are doing our utmost to offer the optical interface part at the highest possible level and in this way ensure that any selected transceiver will work properly.<\/p>\n<p>For more information, contact us at <a href=\"mailto:sales@sylex.sk\">sales@sylex.sk<\/a>.<\/p>\n<p><strong>References<\/strong><\/p>\n<p>[1]\u00a0\u00a0 \u201cCOBO\u00a0 8-Lane\u00a0 &amp;\u00a0 16-Lane\u00a0 On-Board\u00a0 Optics\u00a0 Specification\u00a0 Release\u00a0 1.1,\u201d Consortium for On-Board Optics (COBO), 2018.<\/p>\n<p>[2]\u00a0\u00a0 \u201cOSFP OCTAL SMALL FORM FACTOR PLUGGABLE MODULE,\u201d OSFP MSA, 2019.<\/p>\n<p>[3]\u00a0\u00a0 \u201cQSFP-DD Hardware Specification,\u201d QSFP-DD MSA, 2018.<\/p>\n<p><b>Eduard Koza \u2013 R&amp;D Manager<\/b>\u00a0\u2013\u00a0<a class=\"internal-link\" title=\"Opens internal link in current window\" href=\"https:\/\/www.oldweb.sylex.sk\/contacts\/engineering\/\" target=\"_blank\" rel=\"noopener noreferrer\">Contact<\/a><\/p>\n<p>Eduard Koza is R&amp;D manager at Sylex. He started as a project engineer for high-performance copper harnesses. In 2000, he widened his activities to passive fiber optic interconnection products and fiber optic sensing systems. At the beginning of this period, he mainly led multiple technology transfers and covered the implementation of new products into the company portfolio.<\/p>\n<p>Later, he held the role of Engineering manager in the company and headed the technology and engineering activities responsible for transferring customer ideas to the final products. His current position covers the management of newly introduced technical solutions, utilizing his consultancy skills related to customized fiber optic interconnection products.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bac62ab elementor-align-left elementor-widget__width-initial elementor-widget elementor-widget-button\" data-id=\"bac62ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.sylex.sk\/wp-content\/uploads\/2019\/09\/Sylex-Whitepaper-Which-connectivity-serves-400G.pdf\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-icon\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-file-pdf\"><\/i>\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Download<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Univerz\u00e1lne, najmodernej\u0161ie, odoln\u00e9 vo\u010di bud\u00facnosti, testovan\u00e9 a overen\u00e9 v priemysle &#8211; to s\u00fa vlastnosti, ktor\u00e9 ka\u017ed\u00fd h\u013ead\u00e1 pri pl\u00e1novan\u00ed pripojenia pre nov\u00e9 syst\u00e9my s vysokou hustotou. Splni\u0165 v\u0161etky tieto podmienky je snom dizajn\u00e9rov aj majite\u013eov. Pozrime sa na Eduardov \u010dl\u00e1nok o s\u00fa\u010dasn\u00fdch mo\u017enostiach prepojenia pre 400G a o tom, ak\u00e9 vlo\u017en\u00e9 straty mo\u017eno o\u010dak\u00e1va\u0165.<\/p>\n","protected":false},"author":3,"featured_media":11896,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[543,545,375],"tags":[544],"class_list":["post-14726","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-sk","category-prepojenia","category-uncategorized-sk","tag-blog-sk"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ktor\u00e1 konektivita sl\u00fa\u017ei pre 400G? - Sylex<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sylex.sk\/sk\/ktora-konektivita-sluzi-pre-400g\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ktor\u00e1 konektivita sl\u00fa\u017ei pre 400G? - Sylex\" \/>\n<meta property=\"og:description\" content=\"Univerz\u00e1lne, najmodernej\u0161ie, odoln\u00e9 vo\u010di bud\u00facnosti, testovan\u00e9 a overen\u00e9 v priemysle - to s\u00fa vlastnosti, ktor\u00e9 ka\u017ed\u00fd h\u013ead\u00e1 pri pl\u00e1novan\u00ed pripojenia pre nov\u00e9 syst\u00e9my s vysokou hustotou. Splni\u0165 v\u0161etky tieto podmienky je snom dizajn\u00e9rov aj majite\u013eov. 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