{"id":11143,"date":"2025-09-15T11:21:28","date_gmt":"2025-09-15T11:21:28","guid":{"rendered":"https:\/\/csiag.eu\/?p=11143"},"modified":"2025-09-15T11:31:02","modified_gmt":"2025-09-15T11:31:02","slug":"tinklo-technologiju-komutatoriai-ir-kabeliai","status":"publish","type":"post","link":"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/","title":{"rendered":"Tinklo technologija - komutatoriai ir kabeliai"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Turinys<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Netzwerk-Kabel\" >Tinklo kabelis<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Abschirmung\" >Ekranavimas<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Klassifizierung_CAT\" >Klasifikacija (CAT)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Glasfaser_vs_Kupfer\" >\u0160viesolaidis ir varis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Preisfrage\" >Klausimas d\u0117l kainos<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Hub_vs_Switch\" >Koncentratorius ir jungiklis<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Hub\" >Insultas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Switch\" >Perjungti<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Ports\" >Prievadai<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Switches_%E2%80%93_unmanaged\" >Komutatoriai - (ne)valdomi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Hersteller_von_Switches\" >Jungikli\u0173 gamintojas<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Cisco\" >\"Cisco\"<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/#Ubiquiti\" >Ubiquiti<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Skaitymo laikas<\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minut\u0117s<\/span><\/span>\n<p class=\"wp-block-paragraph\">Komutatoriai ir kabeliai atlieka pagrindin\u012f vaidmen\u012f tinklo technologijoje. Toliau aptariami skirtumai ir atrankos kriterijai, \u012f kuriuos reikia atsi\u017evelgti.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Netzwerk-Kabel\"><\/span>Tinklo kabelis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Abschirmung\"><\/span>Ekranavimas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tinklo kabeliai yra suprojektuoti kaip 4 por\u0173 susukti viengubi kabeliai su bendra vario apyranke, kad b\u016bt\u0173 ekranuoti i\u0161orini\u0173 trukd\u017ei\u0173 laukai (S\/FTP - <em><strong>S<\/strong>Creened <strong>F<\/strong>aliejuotas <strong>T<\/strong>suktukas <strong>P<\/strong>oras<\/em>). Susukimas pa\u0161alina viduje atsirandan\u010dius interferencinius laukus.<br>Kabeliai, kuri\u0173 atskiros laid\u0173 poros papildomai ekranuojamos pyn\u0117mis, vadinami S\/STP kabeliais (<em><strong>S<\/strong>Creened <strong>S<\/strong>hielded <strong>T<\/strong>suktukas<strong> P<\/strong>oras<\/em>). <br>FTP kabeliams (<em><em><strong>F<\/strong>aliejuotas <strong>T<\/strong>suktukas <strong>P<\/strong>oras<\/em><\/em>), vietoj vario pynimo naudojama aliuminiu dengta folija.<br>Visuose variantuose vadinamasis nutekamasis laidas naudojamas kaip \u012f\u017eeminimo laidas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">UTP kabeliai (<em><strong>U<\/strong>n ekranuotas <strong>T<\/strong>suktukas <strong>P<\/strong>oras<\/em>), kurie neturi jokio ekrano, tod\u0117l neturi dviviel\u0117s jungties.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Klassifizierung_CAT\"><\/span>Klasifikacija (CAT)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CAT1-CAT6(A) kategorij\u0173 kabeliai ne\u012ftraukiami, nes jie nebeatitinka \u0161iuolaikini\u0173 duomen\u0173 srauto pralaidumo reikalavim\u0173, jei reikia 10 Gb\/s ar didesn\u0117s spartos Ethernet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CAT7 laid\u0173 poros yra atskirai ekranuotos. Jos atitinka reikalavimus <a href=\"https:\/\/de.wikipedia.org\/wiki\/IEEE_802.3an\" target=\"_blank\" rel=\"noopener\">IEEE 802.3an<\/a>galima naudoti iki 600 MHz, CAT7A - iki 1 000 MHz, o duomen\u0173 perdavimo sparta - iki 10 Gb\/s 10GBASE-T programose.<br>Did\u017eiausias kabelio ilgis yra 100 m, esant vardiniam perdavimo grei\u010diui.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Did\u017eiausi\u0105 duomen\u0173 perdavimo spart\u0105 \u0161iuo metu pasiekia CAT8.2 kategorijos kabeliai, kuri\u0173 pralaidumas yra 2 Gb\/s, o duomen\u0173 perdavimo sparta - 40 Gb\/s, atitinkamai 25 GBASE-T ir 40 GBASE-T.<br>Naudojant 40GBASE-T, kabelio ilgis ribojamas iki 30 m.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Glasfaser_vs_Kupfer\"><\/span>\u0160viesolaidis ir varis<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Varini\u0173 kabeli\u0173, ypa\u010d CAT8, na\u0161umas dabar prilygsta \u0161viesolaid\u017eio kabeli\u0173 na\u0161umui. Vis d\u0117lto yra vienas skirtumas, kur\u012f galima \u012fgyvendinti tik naudojant varinius kabelius, t. y. PoE (angl.<em><strong>P<\/strong>ower <strong>o<\/strong>ver <strong>E<\/strong>interneto svetain\u0117<\/em>), maitinimo \u0161altinis vartotojams, pvz., fotoaparatams, per Ethernet kabel\u012f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jei PoE nereikia, vyrauja tendencija rinktis \u0161viesolaid\u017eius, nors j\u0173 tvarkymas, pavyzd\u017eiui, ki\u0161tukini\u0173 jung\u010di\u0173 montavimas, yra daug sud\u0117tingesnis ir tam reikia speciali\u0173 \u012franki\u0173.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Preisfrage\"><\/span>Klausimas d\u0117l kainos<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kain\u0173 skirtumas tarp CAT7(A) ir CAT8(.1\/.2) su 10% yra nedidelis. Galite skai\u010diuoti apie 10 eur\u0173 u\u017e 3 m CAT7 ir apie 11 eur\u0173 u\u017e CAT8.1.<br>Ta\u010diau svarbu nepamir\u0161ti, kad infrastrukt\u016bra, pavyzd\u017eiui, komutatoriai, taip pat turi atitikti klasifikavimo reikalavimus, kad netapt\u0173 duomen\u0173 srauto kli\u016btimi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hub_vs_Switch\"><\/span>Koncentratorius ir jungiklis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Centratoriai ir komutatoriai naudojami i\u0161 mar\u0161rutizatoriaus gaunamam duomen\u0173 srautui paskirstyti per turimas prievad\u0173 jungtis galutiniams \u012frenginiams, pavyzd\u017eiui, kompiuteriams, spausdintuvams, skaitytuvams, fotoaparatams ar kitiems tinklo \u012frenginiams.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hub\"><\/span>Insultas<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Centratorius \u012feinant\u012f duomen\u0173 sraut\u0105 tolygiai paskirsto visiems prievadams. Prijungti abonentai gauna duomen\u0173 sraut\u0105.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Switch\"><\/span>Perjungti<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Komutatorius analizuoja gauto duomen\u0173 srauto antra\u0161t\u0119. Pagal atpa\u017eint\u0105 MAC adres\u0105 nustatomas tikslinis \u012frenginys. Jei MAC adresas neatpa\u017e\u012fstamas, jis siun\u010dia duomen\u0173 paket\u0105 \u012f visus prievadus. Kai tik atitinkamas tikslinis \u012frenginys atsako, jis perduoda savo MAC adres\u0105, kur\u012f komutatorius \u012fra\u0161o \u012f savo CAM (<em><strong>C<\/strong>ontentas <strong>A<\/strong>apranga <strong>M<\/strong>emory<\/em>), taip pat SAT lentel\u0119 (<em><strong>S<\/strong>ource-<strong>A<\/strong>suknel\u0117 -<strong>T<\/strong>galima<\/em>). Tai rei\u0161kia, kad paketai gali b\u016bti i\u0161 karto persiun\u010diami \u012f teising\u0105 paskirties adres\u0105 pagal MAC adres\u0105.<br>Tiesioginis priskyrimas pagal MAC adres\u0105 u\u017ekerta keli\u0105 duomen\u0173 paket\u0173 susid\u016brimams ir leid\u017eia palaikyti dvipus\u012f ry\u0161\u012f, tod\u0117l optimizuojamas duomen\u0173 pralaidumas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Komutatoriai taip pat gali sukurti virtualius LAN (<em>VLAN<\/em>) ir paskirstyti duomen\u0173 sraut\u0105 \u012f skirtingus loginius tinklus ir taip juos apdoroti atskirai vienas nuo kito.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ports\"><\/span>Prievadai<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Prievad\u0173 skai\u010dius gali b\u016bti \u012fvairus - nuo 4, 8, 16, 24 iki 48 prievad\u0173, visko yra rinkoje.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tod\u0117l pirmiausia tur\u0117tum\u0117te pasi\u017eym\u0117ti visus \u012frenginius, kurie bus prijungti prie komutatoriaus per LAN.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jei galutiniai \u012frenginiai maitinami per PoE, reikia atsi\u017evelgti \u012f energijos suvartojim\u0105. Taip yra tod\u0117l, kad vis\u0173 PoE prievad\u0173 suma lemia reikaling\u0105 bendr\u0105 komutatoriaus maitinimo \u0161altinio gali\u0105, taigi ir kain\u0105.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pavyzd\u017eiui, 16 prievad\u0173 komutatoriuje gali b\u016bti 12 ne PoE prievad\u0173 ir 4 PoE prievadai. Tod\u0117l svarbu patikrinti, kiek i\u0161 tikr\u0173j\u0173 yra PoE prievad\u0173 ir kokios galios.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Atsi\u017evelgiant \u012f paprastai augan\u010di\u0105 tinklo infrastrukt\u016br\u0105, reik\u0117t\u0173 numatyti tam tikr\u0105 prievad\u0173 ir PoE prievad\u0173 skai\u010diaus rezerv\u0105.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Switches_%E2%80%93_unmanaged\"><\/span>Komutatoriai - (ne)valdomi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Rink\u0105 dalijasi daug gamintoj\u0173. Mano nuomone, visada patartina rinktis gamintoj\u0105, kuris aktyviai veikia verslo sektoriuje ir tod\u0117l turi solid\u017eios patirties \u0161iame rinkos segmente.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Reikia atskirti vadinamuosius <em>valdomas<\/em> ir <em>nevaldomas<\/em> Jungikliai. Tik <em>valdomas<\/em> Jungiklius galima konfig\u016bruoti. Net jei i\u0161 prad\u017ei\u0173 konfig\u016bravimo galimyb\u0117 atskiram naudotojui retai b\u016bna svarbi, kaip paprastai b\u016bna gyvenime, laikui b\u0117gant poreikis did\u0117ja ir konfig\u016bravimo galimyb\u0117s poreikis tampa nusp\u0117jamas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Konfig\u016bracijos paprastumas ma\u017e\u0117ja did\u0117jant profesionalumui ir su tuo susijusiam administravimo sud\u0117tingumui.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ta\u010diau komutatorius visada \"veikia\", kai jis yra pagrindin\u0117s gamyklin\u0117s konfig\u016bracijos. Tai rei\u0161kia, kad kol kas nereikia, nors ir neprivaloma, atlikti joki\u0173 konfig\u016bravimo veiksm\u0173.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160iuo at\u017evilgiu dabar galima remtis <em>valdomas<\/em> jungikliai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hersteller_von_Switches\"><\/span>Jungikli\u0173 gamintojas<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Mano nuomone, pasirinkimo agonija yra suma\u017einta iki dviej\u0173 gamintoj\u0173. Kiekvienas, kuriam artima \"Cisco\", be joki\u0173 abejoni\u0173 pasirinks \"Cisco\". Kiekvienas, kuris dar n\u0117ra \u0161ali\u0161kas, neturi savo \u017einioje begalinio biud\u017eeto ir n\u0117ra verslo profesionalas, kai kalbama apie tinklus, i\u0161moks \u012fvertinti \"Ubiquiti\".<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Abiem gamintojams bendra tai, kad paprastai didesniuose komutatoriuose (kai kuriais atvejais nuo 8 arba 16 prievad\u0173) yra 16 Gb\/s SFP\/SFP+ arba 40 Gb\/s \"Enhanced Quad-Small Form-factor Pluggable\" (QSFP+) prievadai, paprastai 2 arba 4 optinio pluo\u0161to jungtys.<br>QSFP-DD (dvigubo tankio) palaiko iki 56 GBit\/s ir 400 Gbit\/s greit\u012f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Did\u017eiausias kabelio ilgis, skirtas ry\u0161io prievadams pagal pirmiau nurodytus standartus, yra 550 m (daugiamodis) arba 10 km (vienmodis LX), arba 40 km (vienmodis EX) ir 80 km (vienmodis ZX), priklausomai nuo pluo\u0161to tipo. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Su CWDM ir DWDM moduliais galima pasiekti net iki 80 arba 120 km atstum\u0105, jei tik yra atitinkama perdavimo galia ir pri\u0117mimo jautrumas.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cisco\"><\/span>\"Cisco\"<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\"Cisco\" yra bene \u017einomiausias gamintojas. Neprofesionalius naudotojus da\u017enai atbaido administravimas, kuris apima beveik visas galimybes ir tod\u0117l yra labai sud\u0117tingas. Profesional\u0173 aplinkoje \"Cisco\" yra nepakei\u010diamas ir kvazistandartas.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SG ir CBS (<em>\"Cisco\" verslo komutatorius<\/em>) skirti privatiems vartotojams, pavyzd\u017eiui, ma\u017eoms ir vidutin\u0117ms \u012fmon\u0117ms, \"Cisco Catalyst\" - pramoniniams vartotojams, o \"Cisco Nexus\" - tinklo strukt\u016broms, kurioms reikia didelio mastelio ir atitinkamo na\u0161umo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ubiquiti\"><\/span>Ubiquiti<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\"Ubiquiti\" yra gamintojas, i\u0161 prad\u017ei\u0173 veik\u0119s profesional\u0173 sektoriuje, gaminantis ne tik komutatorius, bet ir WLAN bei radijo retransliacijos komponentus, kuris si\u016blo vartotojams skirt\u0105 asortiment\u0105 su profesionaliomis verslo sektoriaus technologijomis u\u017e prieinam\u0105 kain\u0105.<br>Be to, jis pasi\u017eymi vis\u0105 par\u0105 veikian\u010dia internetine \"RealTime\" pagalba, kuri\u0105 galima i\u0161sikviesti i\u0161 valdiklio grafin\u0117s s\u0105sajos ir prie kurios galima prisijungti nuotoliniu b\u016bdu. Sesijos \u017eurnalai \u012fra\u0161omi ir, pasibaigus sesijai, pateikiami el. pa\u0161tu. Tod\u0117l v\u0117liau galima i\u0161samiai pakartoti atliktus veiksmus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\"UniFi\" ir \"Edge\" yra \"Ubiquiti\" vartotoj\u0173 ir \u012fmoni\u0173 rinkoms si\u016blomi padaliniai. Abiej\u0173 linij\u0173 privalumas - i\u0161samus viso tinklo vizualizavimas ir centrinis, specialus valdymas per \"UniFi CloudKey Controller\" arba \"UniFi DreamMachine\" (UDM), ypa\u010d kartu su \"UniFi Camera System\" (UniFi Protect) arba \"UniFi DreamRouter\" (UDR).<br>Visi \"Pro\" arba \"Enterprise\" variantai palaiko i\u0161pl\u0117stines 3 lygmens funkcijas, pvz., VLAN.<\/p>","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Skaitymo laikas<\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minut\u0117s<\/span><\/span>In der Netzwerktechnik nehmen Switches und die Verkabelung zentrale Funktionen ein. Was zu beachtende Unterschiede und Auswahlkriterien betrifft, soll nachfolgend er\u00f6rtert werden. Netzwerk-Kabel Abschirmung Netzwerkkabel sind als 4-paarig verdrillte Einzelkabel mit gemeinsamem Kupfer-Geflecht zur Abschirmung externer St\u00f6rfelder ausgef\u00fchrt (S\/FTP &#8211; Screened Foiled Twisted Pair). Die Verdrillung eliminiert intern auftretende St\u00f6rfelder.Kabel mit einzeln zus\u00e4tzlich mit Geflecht&hellip;&nbsp;<a href=\"https:\/\/csiag.eu\/lt\/blog\/2025\/09\/15\/netzwerktechnik-switches-und-verkabelung\/\" rel=\"bookmark\">Skaityti daugiau \"<span class=\"screen-reader-text\">Tinklo technologija - komutatoriai ir kabeliai<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[2553],"tags":[],"class_list":["post-11143","post","type-post","status-publish","format-standard","hentry","category-netzwerk-technik"],"modified_by":"Achim Goerner","_links":{"self":[{"href":"https:\/\/csiag.eu\/lt\/wp-json\/wp\/v2\/posts\/11143","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/csiag.eu\/lt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/csiag.eu\/lt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/csiag.eu\/lt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/csiag.eu\/lt\/wp-json\/wp\/v2\/comments?post=11143"}],"version-history":[{"count":0,"href":"https:\/\/csiag.eu\/lt\/wp-json\/wp\/v2\/posts\/11143\/revisions"}],"wp:attachment":[{"href":"https:\/\/csiag.eu\/lt\/wp-json\/wp\/v2\/media?parent=11143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/csiag.eu\/lt\/wp-json\/wp\/v2\/categories?post=11143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/csiag.eu\/lt\/wp-json\/wp\/v2\/tags?post=11143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}