CATV inonzi shorthand term for service terevhizheni. Imwe michina inoshandiswa inoshandiswa iyo inotsigira cable TV inotsigirawo Internet cable. Vakawanda vepaIndaneti vanopa mazano (ISPs) vanopa vashandi vavo michina yeIndaneti pamwe chete neterevhizheni pamusoro pemitsetse imwechete yeCATV.
CATV Infrastructure
Vashandi vepaChina vanogona kushanda zvakananga kana kubhadhara mitero yenhare yekutsigira vatengi vavo. CATV motokari inowanzoshandisa fiber optic cables pamagumo omuperekedzi uye pamusoro pemakumbo e-coaxial pamagumo emuteereri.
DOCSIS
Yakawanda kabhadhi mitambo inotsigira Data Over Cable Service Interface Specification (DOCSIS) . DOCSIS inotsanangura kushandiswa kwechidimbu pamiganhu yeCATV inoshanda. Iyo yekutanga DOCSIS 1,0 yakagamuchirwa muna 1997 uye yakagadziridzwa zvishoma nezvishoma pamusoro pemakore:
- DOCSIS 1.1 (1999) - yakawedzerwa Quality of Service (QoS) inokodzera kubatsira inzwi pamusoro pe IP (VoIP)
- DOCSIS 2.0 (2001) - kuwedzerwa kwedhadharo yezvikwata zvepamugwagwa
- DOCSIS 3.0 (2006) - yakawedzerwa dhidha uye yakawedzera IPv6 kutsigirwa
- DOCSIS 3.1 (2013+) - yakawanda yakawedzerwa dhamba
Kuti uwane huwandu hwakazara hwakagadzirirwa uye huwandu hwekushanda kubva kumashoni ekubatanidza Indaneti, vatengi vanofanira kushandisa modem inotsigira imwechete kana yepamusoro version yeDOCSIS mutevedzeri wavo wekunamatira.
Internet Internet Services
Kashani Internet vatengi vanofanira kuisa kabati yemodemu (kazhinji, DOCSIS modem) kutora router yavo yemusha yakawanda yebasa kana zvimwe zvigadzirwa kuIndaneti. Indaneti mitemo inogonawo kushandisa makedhi emakedhi emagetsi anobatanidza kushanda kwekombiyumu modem uye webbandaneti yakawanda mumutambo mumwe chete.
Vatengi vanofanira kubhadharira kurongwa hwebasa kuitira kuti vawane kabhadhi Internet. Vakawanda vanopa mazano vanopa mazano akawanda ezvirongwa kubva kubva pasi kusvika kumagumo ekupedzisira. Nheyo dzinokosha dzinosanganisira:
- Zvirongwa zvinosanganisira cable Internet, televhoni yekamberi uye dzimwe nguva nhare dzefoni kune imwe kontrakiti dzinonzi mabundled mapeji. Izvo zvinonzi "katatu kutamba" mapurati zvinosanganisira zvose zvitatu. Kunyange zvazvo mutengo wemapuraneti hupfuura kupfuura weInternet service chete, vamwe vatengi vanochengetedza mari nekuchengeta zvinyorwa zvavo pamwe chete nomupidzi.
- Mimwe michina yepaIndaneti inoshandiswa nzvimbo inosvika pamiganhu yakawanda pamusoro pehuwandu hwemashoko anokwanisa kuitika panguva imwe neimwe yekubhadhara (kazhinji, mwedzi mumwe nomumwe) apo vamwe vanopa dhiini dzisingagumi.
- Cable modems inowanzobhadharwa kuti iwedzere mari pane kutengwa zvakasiyana
CATV Connectors
Kuti abatanidze terevhizheni kune cables service, caxial cable inofanira kubudiswa muTV. Rudzi rwakafanana rwekambani rinoshandiswa kubatanidza kambani yemodhi kumashandisirwo emitambo. Tsamba idzi dzinoshandisa chimiro che "F" style connector inowanzonzi CATV connector, kunyange zvazvo idzi dzakafanana zvibatanidza zvaiwanzoshandiswa neAnalogog TV setups mumakumi mashoma emakore apfuura vasati vatere TV.
CATV vs. CAT5
Pasinei nemazita akadaro, CATV haisi yeChikamu 5 (CAT5) kana mamwe maitiro edzimba dzetambo dzese. CATV uyewo tsika inoreva rimwe rudzi rweterevhizheni service pane IPTV .