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Add network unit 14 on fiber optics basics.

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Cover light conversion, pros/cons, and multimode vs single-mode fiber with a quiz.

Co-authored-by: Cursor <cursoragent@cursor.com>
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pepaskopec-blip 2026-09-14 12:15:18 +02:00
commit a6f359376c
5 changed files with 140 additions and 18 deletions
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20
i18n.c
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@ -275,6 +275,12 @@ const TrEntry tr_ui[] = {
"4 slides about bus, star and ring, then a quiz."},
{"net_ex13_title", "Kvíz: topologie sítě",
"Quiz: network topologies"},
{"net_unit14", "Optika",
"Fiber optics"},
{"net_unit14_sub", "5 snímků o optických vláknech a pak kvíz.",
"5 slides about optical fibers, then a quiz."},
{"net_ex14_title", "Kvíz: optika",
"Quiz: fiber optics"},
{"net_quiz_intro",
"Vyberte u každé otázky jednu správnou odpověď a stiskněte Zkontrolovat.",
"Choose one correct answer for each question and press Check."},
@ -302,6 +308,8 @@ const TrEntry tr_ui[] = {
"Quiz on TCP/IP architecture"},
{"net_quiz13_head", "Kvíz k topologiím sítě",
"Quiz on network topologies"},
{"net_quiz14_head", "Kvíz k optice",
"Quiz on fiber optics"},
{"net_slide_next", "Další", "Next"},
{"net_slide_prev", "Zpět", "Back"},
{"net_slide_start", "Přejít na cvičení", "Go to the exercise"},
@ -525,6 +533,18 @@ const TrEntry tr_content[] = {
"Star uses twisted pair or fiber"},
{"V kruhu zprávy obíhají, dokud nenajdou adresáta", NULL,
"In a ring, messages circulate until they find the recipient"},
{"Optika: el. impulsy → světlo (LED/laser) → fotodioda", NULL,
"Optics: electrical pulses → light (LED/laser) → photodiode"},
{"Jedno vlákno = jednosměrný přenos; obousměrně dvě vlákna", NULL,
"One fiber = one-way; two fibers for bidirectional use"},
{"Nevýhody: náročná montáž a cena prvků/konektorů", NULL,
"Drawbacks: difficult installation and costly parts/connectors"},
{"MM: jádro 50/62,5 µm a více vidů", NULL,
"MM: 50/62.5 µm core and multiple modes"},
{"SM: jádro 7–10 µm, jeden paprsek, laser", NULL,
"SM: 7–10 µm core, one beam, laser"},
{"MM typicky používá levnější LED zdroje", NULL,
"MM typically uses cheaper LED sources"},
{"čtrnáct", NULL, "fourteen"},
{"sedmnáct", NULL, "seventeen"},
{"dvacet", NULL, "twenty"},