Ma Cable TV network kwa ana aang'ono. Gawo 9: Mutu

Mutu wamutu umasonkhanitsa ma siginecha kuchokera kumagwero angapo, kuwakonza ndikuwawulutsa ku netiweki ya chingwe.

Zamkatimu zankhani

• Gawo 1: Zomangamanga zonse za netiweki ya CATV
• Gawo 2: Mapangidwe ndi mawonekedwe a wave
• Gawo 3: Chigawo cha analogi cha chizindikiro
• Gawo 4: Digital gawo la chizindikiro
• Gawo 5: Coaxial Distribution Network
• Gawo 6: RF Amplifiers
• Gawo 7: Optical Receivers
• Gawo 8: Optical backbone network
• Gawo 9: Mutu
• Gawo 10: Troubleshooting pa chingwe TV maukonde

Pali kale nkhani yabwino kwambiri pa Habre yokhudza kapangidwe ka mutu: Zomwe zili mkati mwamutu wa chingwe. Sindidzalembanso m'mawu angaanga ndipo ndimangolimbikitsa omwe akufuna kuti adziwe bwino. Kufotokozera zomwe zili m'dera langa sikungakhale kosangalatsa, chifukwa tilibe zida zosiyanasiyana, ndipo makina onse amasinthidwe amayendetsedwa ndi AppearTV chassis yokhala ndi makadi okulitsa osiyanasiyana, osiyanasiyana omwe amalola kuti magwiridwe antchito onse agwirizane. ma chassis angapo a ma unit anayi.

Chithunzi kuchokera patsamba deps.ua

Zida izi zimakupatsani mwayi wowongolera njira zonse kudzera pa intaneti yogwira ntchito, zomwe zimadalira zomwe zili mu chassis.


Kuphatikiza apo, sititolera chizindikiro chapamlengalenga, chifukwa chake positi yathu ya antenna imawoneka motere:

Chithunzi cha forum chipmaker.ru Sindinaloledwe kuyika chithunzi chenicheni cha siteshoni yathu.

Nambala iyi ya mbale ndiyofunikira kuti mulandire njira kuchokera ku ma satellite angapo nthawi imodzi.

Chizindikiro cha satelayiti nthawi zambiri chimatsekedwa ndikungoyang'ana: uwu ndi mtundu wa encryption momwe zizindikiro zotsatizana zimasakanizidwa molingana ndi algorithm yoperekedwa. Izi sizikusowa mphamvu zambiri zamakompyuta ndi nthawi yopangira, zomwe zikutanthauza kuti chizindikirocho chimakonzedwa popanda kuchedwa. Mu mawonekedwe a hardware, chizindikiritso cholembetsa (ngakhale ndi wothandizira yemwe amatumiza chizindikiro kumanetiweki) ndi khadi lodziwika bwino lomwe lili ndi chip, chomwe chimayikidwa mu gawo lofikira (CAM) ndi mawonekedwe a CI, ofanana ndi mu TV iliyonse yamakono.


Kwenikweni, masamu onse amachitidwa mkati mwa module, ndipo khadi ili ndi makiyi angapo. Wogwira ntchitoyo akhoza kubisa mtsinjewo ndi makiyi omwe khadiyo amadziwa (ndipo woyendetsa mwiniwakeyo adawalemba mu khadi) ndipo, motero, amayendetsa mndandanda wa zolembetsa kuti athetse khadi ku dongosolo, kusintha chizindikiritso chachikulu cha "woyendetsa". Uku ndikungofotokozera wamba momwe machitidwe ofikira amagwirira ntchito; m'malo mwake, pali zambiri zosiyanasiyana: mbali imodzi, zimabedwa nthawi zonse, ndipo kwina, ma algorithms akukhala ovuta, koma ndizosiyana kwambiri. nkhani...

Popeza wogwiritsa ntchitoyo amaperekanso mapaketi olipidwa pamanetiweki, ndiye kuti ndikofunikira kuwalembera musanawatumize pa netiweki. Ntchitoyi imachitidwa ndi zida za wopereka chithandizo chachitatu, zomwe zimapereka izi kwa wogwiritsa ntchito ngati ntchito. Zipangizo zomwe zimayikidwa pamutu zimatsimikizira kugwira ntchito kwa njira yofikira pazokhutira: zonse kubisa komanso kuwongolera makiyi olembetsedwa mumakhadi anzeru.

PS Palibe amene adandithandiza ndi nkhani ya DOCSIS, ngati wina ali ndi chikhumbo, ndidzakhala wokondwa, lembani.

Source: www.habr.com