Abantu bavame ukuzibuza ngokukhetha ihhanisi elihle lokuxhuma i-BNC. Bafuna ukwazi imingcele yokusebenza nezindawo zohlelo lokusebenza.
I-BNC igqama njengenye ye-RF coaxial interfaces evamile. Ibonakala ekusethweni kwamavidiyo okugadwa, amagiya okuxhumana, amasistimu okusakaza, amathuluzi okuhlola, nemisebenzi yokuqoqa amasignali wezimboni.
Kumaphrojekthi wangempela, ama-specs, izinto zokwakha, ukuvimbela, kanye nekhwalithi yokwakha ye-BNC harness yenza umehluko omkhulu ekuboniseni ukusebenza. Onjiniyela babhekana nalolu daba ngaso sonke isikhathi. Izixhumi ze-BNC zibonakala zifana lapho uqala nje. Nokho ezinye ziletha amasignali acacile futhi azinzile. Ezinye ziholela ezinkingeni ezinzima zokugxambukela.
Lesi siqeshana sidlula izici ezibalulekile zehhanisi eliqinile le-BNC. Ihlanganisa isakhiwo, imingcele yokusebenza, ukukhetha kwekhebula, izindawo zohlelo lokusebenza, namathiphu onjiniyela ekukhetheni okulungile.
Isakhiwo Esiyisisekelo se-BNC Harness. Izingxenye zayo ezibalulekile zihlanganisa okulandelayo.
Isixhumi se-BNC siza njengepulaki noma ijekhi. Inguqulo yesilisa ine-bayonet yangaphandle. Insikazi inesakhiwo se-slot. Ukukhiya okusheshayo kanye nokumelana nokubala kokudlidliza njengamandla amakhulu e-BNC.
Isivikelo sisebenzisa impahla ye-PTFE. Iphatha ukumelana nezinga lokushisa futhi igcina ukuzinza kwesignali kusheke.
Ikhondaktha emaphakathi isebenza njengephinikhodi-enamatheminali acwecwe ngegolide. Lezi zinciphisa ukulahlekelwa futhi zivimbela i-oxidation.
I-sheath inikeza isivikelo sensimbi. Icindezela ukugxambukela futhi ibhekana nezindaba ze-EMI.
Intambo ye-coaxial idlala indima emaphakathi. Okuqukethwe kwayo kuthinta ukuncipha, ikhwalithi yesithombe, nokuthi amasignali ahamba ibanga elingakanani.
Ukucaciswa Okujwayelekile Kwezintambo ze-BNC. Ukwehlukanisa phakathi kwezinguqulo kusebenza ngezindlela eziningana.
Impedance yenza umehluko omkhulu lapha. Inguqulo engu-75 ohm ihambisana nezidingo zokugadwa kwevidiyo nezokusakaza. Ilinganisa njengokukhetha okuvame kakhulu. Uhlobo lwe-50 ohm luhambisana nemishini yokuxhumana neyokuhlola.
Ama-impedances angafani adala izithombe ezilufifi, imibala emnyama, noma ukulahleka kwesignali.
Isakhiwo sesixhumi siwahlunga abe yizinhlobo ze-BNC eziqondile. I-Bent BNC isebenza kahle ezindaweni eziqinile. Iphaneli ye-BNC iphatha ukukhwezwa kwemishini. I-BNC engenamanzi isebenza imisebenzi yokuqapha ngaphandle.
Uhlobo lwekhebula luphuka ngokuqhubekayo. I-RG59 ihola ekugadweni kwamavidiyo ajwayelekile. I-RG6 iphatha-ukudluliswa kwebanga elide. I-RG58 ilingana nokuxhumana kanye nefrikhwensi yomsakazo isebenzisa. 3ukubalwa kwe-C2V ne-5C2V njengamakhebuli ajwayelekile okuvikela. Izintambo ezikhethekile{12}}ezilahlekile eziphansi zivumela ukwenziwa ngendlela oyifisayo.
Inqubo yokukhiqiza nayo iyahluka. Izitayela ezi-crimped zinikeza ukuzinza futhi zivumelane nokukhiqizwa kwenqwaba. Ama-soldered avumela ukwenza ngokwezifiso okuguquguqukayo. Izinguqulo ezibunjiwe zomjovo zinikeza ukuzinza okuphezulu kwezimo zangaphandle.
Inhlanganisela yembobo ifaka phakathi i-BNC yesilisa kuya kowesilisa we-BNC. Abanye baya ku-BNC wesilisa kuya kwabesifazane be-BNC. Abanye baxuba i-BNC ne-RCA. Izinketho ezengeziwe zibhanqa i-BNC ne-SMA, N, noma i-UHF.
Ukuhlukaniswa Kwepharamitha Yokusebenza. Ihhanisi{1}lekhwalithi ephezulu ye-BNC idinga amakhono athile.
Ukuzinza kwe-impedance kubaluleke kakhulu. Izinhlelo zokusebenza zevidiyo zisebenzisa i-75 ohm. Ukusethwa kwe-RF kunamathela ku-50 ohm. Ukuchezuka okuncane kusho amasignali azinzile.
Ukunciphisa kunquma ukucaca kwesignali nebanga lokudlulisela.
I-VSWR, noma i-stand wave ratio, ikhombisa idigri efanayo. Amahhanisi aphezulu afinyelela izinga lephuzu elilodwa amabili noma ngaphansi.
Ileveli yokuvikela iza -ngomluko wesendlalelo esisodwa,{1}}umluko okabili, noma itheyiphu ye-braid plus foil. Ukuvikela okuqinile kuvimbela amaphethini eqhwa, ama-streaks, nokuphazamiseka komsindo.
Ukumelana nezinga lokushisa nokumelana nokugoba kudlala indima ebalulekile. Ukuqapha kwangaphandle kudinga ukumelana nokubanda kuze kufike ku-minus degrees Celsius. Idinga nokuvikelwa elangeni emisebeni ye-UV. Ukumelana nokugoba kubamba-ukudlidliza kwesikhathi eside.
Izimo Zokusebenza Zezintambo ze-BNC. Ukufanisa imininingwane yezimboni kunengqondo.
Amasistimu okuqapha amavidiyo amelela ukusetshenziswa okujwayelekile kakhulu. Baxhuma amakhamera, bafake okokufaka kwe-VCR, futhi baxhumanise namadivayisi wokubonisa. Ukusetha okuncanyelwayo kuhambisana nama-75 ohm ngentambo engu-RG59.
Ukusakaza kanye nokukhiqizwa kwevidiyo kuncike kumahhanisi e-SDI. Amasistimu okusakaza bukhoma nawo ayazuza. Lapha, i-75 ohm enekhebula{3}}evikelekile yokulahlekelwa isebenza kangcono kakhulu.
Ukuhlola nokusetshenziswa kwezinsimbi kubandakanya ama-oscilloscopes, imithombo yesignali, nama-probe okuhlola. Inketho-yokukhetha ingu-50 ohm nge-RG58.
Imishini yokuxhumana kanye nokudluliswa kwesignali yezimboni kuncamela ikhebula le-coaxial elivikelwe elingu-50 ohm.
Ama-adaptha{0}esistimu ahlukene aphatha izidingo ezixubile. I-BNC ukuya ku-SMA, i-BNC kuya ku-RCA, noma i-BNC kuya ku-N yohlobo lokuqapha nokuhlanganiswa kokuxhumana.
Izincomo Zokukhetha Onjiniyela. Le nguqulo esebenzayo ihlanganisa amacala avamile.
Amakhamera agadayo abiza i-75 ohm BNC ene-RG59.
Ukudluliswa kwebanga-elide ngaphezu kwamamitha ayikhulu kudinga u-75 ohm BNC nge-RG6.
Ama-Oscilloscopes nemishini yaselabhorethri ihambisana ne-50 ohm BNC ene-RG58.
Izindawo ezingaphandle ezinokhahlo zidinga izinhlobo ezibunjiwe zokujova ezingangeni manzi ezinekhebula-elivikelwe kabili.
Izikhala eziwumngcingo ezinomzila wekhebula okhohlisayo ziyazuza ku-BNC egobile.
Ukuxhuma-kwedivayisi kusebenzisa i-BNC ukuya ku-SMA noma i-BNC kuya kumahhanisi e-RCA.
Ngamafuphi, ihhanisi elifanele le-BNC liza phansi ukuze lilungise ukuvimba, amakhebuli afanayo, nokuvikela okufanele.