. . . . "PDH"@cs . . . . "828771"^^ . . . . "Plesiochronn\u00ED digit\u00E1ln\u00ED hierarchie (PDH, anglicky Plesiochronous Digital Hierarchy) je ozna\u010Den\u00ED star\u0161\u00ED technologie pou\u017E\u00EDvan\u00E9 v telekomunika\u010Dn\u00EDch s\u00EDt\u00EDch pro vytv\u00E1\u0159en\u00ED vysokorychlostn\u00EDch digit\u00E1ln\u00EDch linek pomoc\u00ED multiplexov\u00E1n\u00ED n\u011Bkolika datov\u00FDch proud\u016F z linek s ni\u017E\u0161\u00ED rychlost\u00ED."@cs . "19"^^ . . . . . . "Plesiochronn\u00ED digit\u00E1ln\u00ED hierarchie (PDH, anglicky Plesiochronous Digital Hierarchy) je ozna\u010Den\u00ED star\u0161\u00ED technologie pou\u017E\u00EDvan\u00E9 v telekomunika\u010Dn\u00EDch s\u00EDt\u00EDch pro vytv\u00E1\u0159en\u00ED vysokorychlostn\u00EDch digit\u00E1ln\u00EDch linek pomoc\u00ED multiplexov\u00E1n\u00ED n\u011Bkolika datov\u00FDch proud\u016F z linek s ni\u017E\u0161\u00ED rychlost\u00ED. Slovo plesiochronn\u00ED je odvozeno z \u0159eck\u00E9ho pl\u0113sios znamenaj\u00EDc\u00ED t\u00E9m\u011B\u0159 a chronos znamenaj\u00EDc\u00ED \u010Das; odkazuje se na fakt, \u017Ee jednotliv\u00E9 PDH linky b\u011B\u017E\u00ED t\u00E9m\u011B\u0159, ale ne dokonale synchronizovan\u011B.V sou\u010Dasnosti se PDH pou\u017E\u00EDv\u00E1 jako rozhran\u00ED pro ni\u017E\u0161\u00ED rychlosti (E1, E3); pro vy\u0161\u0161\u00ED rychlosti se pou\u017E\u00EDv\u00E1 technologie SDH (Synchronn\u00ED Digit\u00E1ln\u00ED Hierarchie) nebo SONET (Synchronn\u00ED optick\u00E1 s\u00ED\u0165).Jednotliv\u00E9 stupn\u011B PDH vyu\u017E\u00EDvaj\u00ED pro p\u0159enos sign\u00E1lu kroucen\u00E9 p\u00E1ry v metalick\u00FDch kabelech, koaxi\u00E1ln\u00ED kabely, mikrovlnn\u00E9 spoje nebo optick\u00E9 kabely."@cs . . "3940"^^ . "14937675"^^ . "Plesiochronn\u00ED digit\u00E1ln\u00ED hierarchie"@cs . . "Plesiochronn\u00ED digit\u00E1ln\u00ED hierarchie"@cs . . . . .