{"id":7165,"date":"2023-08-25T00:00:00","date_gmt":"2023-08-25T00:00:00","guid":{"rendered":"https:\/\/tech-lib.eu\/tech\/jak-funguje-kabelovy-modem-pochopeni-zakladu\/"},"modified":"2023-08-25T00:00:00","modified_gmt":"2023-08-25T00:00:00","slug":"jak-funguje-kabelovy-modem-pochopeni-zakladu","status":"publish","type":"post","link":"https:\/\/tech-lib.eu\/tech\/jak-funguje-kabelovy-modem-pochopeni-zakladu\/","title":{"rendered":"Jak funguje kabelov\u00fd modem. Pochopen\u00ed z\u00e1klad\u016f"},"content":{"rendered":"<div class=\"articlecontent\">\n<div class=\"newlinediv\"><\/div>\n<p> Spolehliv\u00e9 p\u0159ipojen\u00ed k internetu se v modern\u00edm digit\u00e1ln\u00edm sv\u011bt\u011b st\u00e1v\u00e1 nezbytnost\u00ed pro v\u011bt\u0161inu dom\u00e1cnost\u00ed a firem. Aby s\u00edt\u011b kabelov\u00e9 televize mohly nab\u00edzet vysokorychlostn\u00ed p\u0159\u00edstup k internetu, jsou kabelov\u00e9 modemy nezbytn\u00e9. Jak p\u0159esn\u011b v\u0161ak kabelov\u00fd modem funguje? Poj\u010fme prozkoumat n\u011bkter\u00e9 d\u016fle\u017eit\u00e9 ot\u00e1zky a z\u00e1rove\u0148 se pono\u0159it do slo\u017eitosti t\u00e9to technologie. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Kabelov\u00fd modem je za\u0159\u00edzen\u00ed, kter\u00e9 pomoc\u00ed koaxi\u00e1ln\u00edho kabelu p\u0159ipojuje po\u010d\u00edta\u010d nebo dom\u00e1c\u00ed s\u00ed\u0165 k internetu. Na rozd\u00edl od b\u011b\u017en\u00fdch vyt\u00e1\u010den\u00fdch modem\u016f, kter\u00e9 k p\u0159enosu datov\u00fdch sign\u00e1l\u016f pou\u017e\u00edvaj\u00ed telefonn\u00ed linky, vyu\u017e\u00edvaj\u00ed kabelov\u00e9 modemy ji\u017e existuj\u00edc\u00ed infrastrukturu s\u00edt\u00ed kabelov\u00e9 televize. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Abyste pochopili, jak kabelov\u00fd modem funguje, je vhodn\u00e9 m\u00edt ur\u010dit\u00e9 p\u0159edchoz\u00ed znalosti o s\u00edti kabelov\u00e9 televize. S\u00edt\u011b kabelov\u00e9 televize pou\u017e\u00edvaj\u00ed k p\u0159enosu televizn\u00edch sign\u00e1l\u016f k p\u0159edplatitel\u016fm technologii HFC (Hybrid Fiber-Coaxial). V tomto syst\u00e9mu se pou\u017e\u00edvaj\u00ed jak koaxi\u00e1ln\u00ed kabely, tak optick\u00e9 kabely. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Pro p\u0159\u00edjem a odes\u00edl\u00e1n\u00ed digit\u00e1ln\u00edch datov\u00fdch sign\u00e1l\u016f se kabelov\u00fd modem p\u0159ipojuje ke koaxi\u00e1ln\u00ed \u010d\u00e1sti HFC s\u00edt\u011b. Kdy\u017e kabelov\u00fd modem zapoj\u00edte do kabelov\u00e9 z\u00e1suvky ve sv\u00e9 dom\u00e1cnosti, vytvo\u0159\u00ed obousm\u011brn\u00fd komunika\u010dn\u00ed kan\u00e1l s poskytovatelem internetov\u00fdch slu\u017eeb (ISP) prost\u0159ednictv\u00edm kabelov\u00e9 s\u00edt\u011b. Datov\u00e9 sign\u00e1ly jsou modulov\u00e1ny a demodulov\u00e1ny kabelov\u00fdm modemem, aby mohly b\u00fdt p\u0159evedeny z digit\u00e1ln\u00edch sign\u00e1l\u016f pro v\u00e1\u0161 po\u010d\u00edta\u010d na analogov\u00e9 sign\u00e1ly pro koaxi\u00e1ln\u00ed p\u0159ipojen\u00ed. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Nyn\u00ed se budeme zab\u00fdvat n\u011bkolika typick\u00fdmi p\u0159ipojen\u00fdmi dotazy. Pot\u0159ebujete sm\u011brova\u010d i kabelov\u00fd modem? \u0158e\u0161en\u00ed vych\u00e1z\u00ed z va\u0161ich jedine\u010dn\u00fdch pot\u0159eb. Sm\u011brova\u010d umo\u017e\u0148uje sou\u010dasn\u00e9 p\u0159ipojen\u00ed mnoha za\u0159\u00edzen\u00ed k internetu a sd\u00edlen\u00ed p\u0159ipojen\u00ed, zat\u00edmco kabelov\u00fd modem nab\u00edz\u00ed pouze p\u0159ipojen\u00ed k internetu. Pokud tedy pot\u0159ebujete p\u0159ipojen\u00ed k internetu pro n\u011bkolik za\u0159\u00edzen\u00ed v dom\u00e1cnosti nebo kancel\u00e1\u0159i, pravd\u011bpodobn\u011b budete pot\u0159ebovat jak kabelov\u00fd modem, tak sm\u011brova\u010d. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Jsou WiFi a kabelov\u00e9 modemy tot\u00e9\u017e? Nejsou stejn\u00e9, ne. Zat\u00edmco modem WiFi, n\u011bkdy ozna\u010dovan\u00fd jako bezdr\u00e1tov\u00fd sm\u011brova\u010d, umo\u017e\u0148uje bezdr\u00e1tov\u00fdm za\u0159\u00edzen\u00edm p\u0159ipojit se k internetu pomoc\u00ed sign\u00e1lu WiFi, kabelov\u00fd modem se k internetu p\u0159ipojuje pomoc\u00ed koaxi\u00e1ln\u00edho kabelu. I kdy\u017e n\u011bkter\u00e9 kabelov\u00e9 modemy obsahuj\u00ed funkce WiFi, ve skute\u010dnosti se jedn\u00e1 o dv\u011b nez\u00e1visl\u00e1 za\u0159\u00edzen\u00ed s odli\u0161n\u00fdmi funkcemi. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee kabelov\u00fd modem vyu\u017e\u00edv\u00e1 s\u00ed\u0165ovou infrastrukturu kabelov\u00e9 televize a funguje jako br\u00e1na mezi po\u010d\u00edta\u010dem nebo s\u00edt\u00ed a internetem. P\u0159ev\u00e1d\u00ed datov\u00e9 sign\u00e1ly mezi digit\u00e1ln\u00edmi a analogov\u00fdmi form\u00e1ty p\u0159i jejich p\u0159\u00edjmu a odes\u00edl\u00e1n\u00ed p\u0159es koaxi\u00e1ln\u00ed p\u0159ipojen\u00ed. P\u0159i nastavov\u00e1n\u00ed dom\u00e1c\u00ed nebo kancel\u00e1\u0159sk\u00e9 s\u00edt\u011b m\u016f\u017ee b\u00fdt u\u017eite\u010dn\u00e9 m\u00edt z\u00e1kladn\u00ed znalosti o tom, jak kabelov\u00fd modem funguje a jak spolupracuje se sm\u011brova\u010di a modemy WiFi, abyste maximalizovali sv\u00e9 p\u0159ipojen\u00ed k internetu.<\/p><\/div>\n<div class=\"questions\">\n<div class=\"questionstitle\">FAQ<\/div>\n<div class=\"question\">\n<div class=\"qtitle\"> Maj\u00ed kabelov\u00e9 modemy Wi-Fi?<\/div>\n<p> Kabelov\u00e9 modemy skute\u010dn\u011b mohou podporovat Wi-Fi. Vestav\u011bn\u00fd sm\u011brova\u010d Wi-Fi je funkce, kterou lze nal\u00e9zt v mnoha sou\u010dasn\u00fdch kabelov\u00fdch modemech a kter\u00e1 z\u00e1kazn\u00edk\u016fm umo\u017e\u0148uje bezdr\u00e1tov\u00e9 p\u0159ipojen\u00ed jejich za\u0159\u00edzen\u00ed k internetu. To usnad\u0148uje postup nastaven\u00ed a odpad\u00e1 po\u017eadavek na samostatn\u00fd Wi-Fi router. Je d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee ne v\u0161echny kabelov\u00e9 modemy podporuj\u00ed Wi-Fi a tato schopnost se m\u016f\u017ee li\u0161it v z\u00e1vislosti na modelu a zna\u010dce. <\/p>\n<\/div>\n<div class=\"question\">\n<div class=\"qtitle\"> M\u016f\u017eete z\u00edskat internet pouze s modemem?<\/div>\n<p> Ne, pouh\u00e9 pou\u017eit\u00ed modemu v\u00e1m neumo\u017en\u00ed p\u0159\u00edstup k internetu. Sign\u00e1ly od poskytovatele internetov\u00fdch slu\u017eeb (ISP) jsou modemem p\u0159evedeny do form\u00e1tu, kter\u00fd m\u016f\u017ee b\u00fdt pou\u017eit va\u0161\u00edm po\u010d\u00edta\u010dem nebo jin\u00fdmi za\u0159\u00edzen\u00edmi. Modem sice umo\u017e\u0148uje va\u0161emu za\u0159\u00edzen\u00ed p\u0159\u00edstup k internetu, ale neposkytuje skute\u010dn\u00e9 internetov\u00e9 p\u0159ipojen\u00ed. Abyste mohli internet pou\u017e\u00edvat, mus\u00edte si u poskytovatele internetov\u00fdch slu\u017eeb objednat bal\u00ed\u010dek internetov\u00fdch slu\u017eeb, kter\u00fd v\u00e1m zajist\u00ed p\u0159\u00edstup k internetu. <\/p>\n<\/div>\n<div class=\"question\">\n<div class=\"qtitle\"> Mohu router s kabelov\u00fdm modemem pou\u017e\u00edvat pouze jako router?<\/div>\n<p> Ano, sm\u011brova\u010d kabelov\u00e9ho modemu lze pou\u017e\u00edvat pouze jako sm\u011brova\u010d. Sm\u011brova\u010d s kabelov\u00fdm modemem spojuje funkce sm\u011brova\u010de a kabelov\u00e9ho modemu do jedin\u00e9ho za\u0159\u00edzen\u00ed. P\u0159esto\u017ee hlavn\u00ed funkc\u00ed kabelov\u00e9ho modemov\u00e9ho sm\u011brova\u010de je poskytov\u00e1n\u00ed p\u0159ipojen\u00ed k internetu p\u0159evodem sign\u00e1l\u016f kabelov\u00e9 televize na internetov\u00e9 sign\u00e1ly, obsahuje tak\u00e9 vestav\u011bn\u00e9 funkce sm\u011brova\u010de. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Pokud ji\u017e m\u00e1te samostatn\u00fd kabelov\u00fd modem a sm\u011brova\u010d, m\u016f\u017eete m\u00edsto nich pou\u017e\u00edt sm\u011brova\u010d kabelov\u00e9ho modemu a pou\u017e\u00edvat jej pouze jako sm\u011brova\u010d. V tomto p\u0159\u00edpad\u011b byste funkci kabelov\u00e9ho modemu obe\u0161li p\u0159ipojen\u00edm kabelov\u00e9ho modemov\u00e9ho sm\u011brova\u010de k va\u0161emu st\u00e1vaj\u00edc\u00edmu p\u0159ipojen\u00ed k internetu. To v\u00e1m umo\u017en\u00ed vyu\u017e\u00edvat funkce sm\u011brova\u010de v\u010detn\u011b nastaven\u00ed m\u00edstn\u00ed s\u00edt\u011b, integrace n\u011bkolika za\u0159\u00edzen\u00ed a ovl\u00e1d\u00e1n\u00ed konfigurace s\u00edt\u011b. <\/p>\n<div class=\"newlinediv\"><\/div>\n<p> Pokud ji\u017e vlastn\u00edte samostatn\u00fd modem nebo jste p\u0159ihl\u00e1\u0161eni k internetov\u00e9 slu\u017eb\u011b, kter\u00e1 kabelov\u00fd modem nevy\u017eaduje, m\u016f\u017ee b\u00fdt v\u00fdhodn\u00e9 pou\u017e\u00edt sm\u011brova\u010d kabelov\u00e9ho modemu jako pouh\u00fd router. Usnadn\u00ed se v\u00e1m nastaven\u00ed a budete m\u00edt m\u00e9n\u011b p\u0159\u00edstroj\u016f, kter\u00e9 mus\u00edte sledovat.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Spolehliv\u00e9 p\u0159ipojen\u00ed k internetu se v modern\u00edm digit\u00e1ln\u00edm sv\u011bt\u011b st\u00e1v\u00e1 nezbytnost\u00ed pro v\u011bt\u0161inu dom\u00e1cnost\u00ed a firem. Aby s\u00edt\u011b kabelov\u00e9 televize mohly nab\u00edzet vysokorychlostn\u00ed p\u0159\u00edstup k internetu, jsou kabelov\u00e9 modemy nezbytn\u00e9. Jak p\u0159esn\u011b v\u0161ak kabelov\u00fd modem funguje? Poj\u010fme prozkoumat n\u011bkter\u00e9 d\u016fle\u017eit\u00e9 ot\u00e1zky a z\u00e1rove\u0148 se pono\u0159it do slo\u017eitosti t\u00e9to technologie. Kabelov\u00fd modem je za\u0159\u00edzen\u00ed, kter\u00e9 pomoc\u00ed &#8230; <a title=\"Jak funguje kabelov\u00fd modem. Pochopen\u00ed z\u00e1klad\u016f\" class=\"read-more\" href=\"https:\/\/tech-lib.eu\/tech\/jak-funguje-kabelovy-modem-pochopeni-zakladu\/\" aria-label=\"\u010c\u00edst v\u00edce o Jak funguje kabelov\u00fd modem. Pochopen\u00ed z\u00e1klad\u016f\">\u010c\u00edst d\u00e1l<\/a><\/p>\n","protected":false},"author":3762,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[],"class_list":["post-7165","post","type-post","status-publish","format-standard","hentry","category-networking"],"_links":{"self":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/7165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/users\/3762"}],"replies":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/comments?post=7165"}],"version-history":[{"count":0,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/7165\/revisions"}],"wp:attachment":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/media?parent=7165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/categories?post=7165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/tags?post=7165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}