Yuav ua li cas yog lub - connector BNC?

RF coaxial connector BNC tau txais nws lub npe los ntawm lub founders, engineers Paul Neal thiab Charles Konselmena. Tag nrho cov npe - "bayonet Neil - Konselman". Lo lus "bayonet" ntawm Fabkis keeb kwm thiab txhais tau tias bayonet. Connector yog kaw nrog ib tug ntsuas phoo, uas yog nyob rau hauv cov phom rau lub infantry.

BNC connector yuav siv tau nyob rau hauv circuits nrog voltage mus txog 500 V thiab ib zaus ntawm 3 GHz (wavelength: 10 cm). Qhov no siv ob standardized yoj kuj ntawm 50 thiab 75 ohms. Yog hais tias lub BNC connector yog thov mus rau lub duas paub cable, thiab lawv impedances phim, tsis tau nyob rau hauv no compound tsis pub tshaj 0,3 dB.

Cov kab uas hla ntawm lub coaxial cable yog feem ntau Nws yog tag rau 8 hli. Cov ntaub ntawv uas rau connectors siv bronze nrog nyiaj los yog kub plating. Lub insulating nplhaib yog tsim los ntawm lub tib cov ntaub ntawv nrog rau cov qis tshaj dielectric losses: polytetrafluorethylene, los yog polystyrene.

Tsis tas li ntawd, BNC-connector rau soldering yuav tsum tau muaj Teflon rwb thaiv tsev. Polystyrene soldering yuav melted nyob rau hauv lub central ib feem yuav mus nyob rau hauv nws axis, thiab cov connector yuav tsis zoo.

Nyob rau hauv thiaj li yuav tiv thaiv kom txhob tawg ntawm lub cable, SARMATT lub tuam txhab ua connectors, qhov xaus ntawm uas yog nruab nrog kev ruaj ntseg caij nplooj ntoos hlav. Qhov no kom hais tias cov xov tooj ntawm disconnections thiab kev sib txuas tau siab tshaj lub xov tooj ntawm 500.

BNC connectors nyob rau hauv lo lus nug yog siv rau cov kev txuas pab kiag li lawm khiav hauj lwm rau siab zaus (oscilloscopes, generators ITP), uas tau txais thiab kis pab kiag li lawm, satellite tais diav, cable TV tes hauj lwm, video keb soj ntsuam cov koob yees duab. Nyob rau hauv tas li ntawd, cov connectors yog siv rau lub koom haum ntawm lub zos tes hauj lwm ntawm Ethernet, 10Base2 thiab txawm 100GBase. Ua li no, siv ib tug T-connector, "tee". Caj qaum yog kev cob cog rua rau ib qho axis, thiab cov qhov hluav taws xob yog nyob rau hauv lub network ntawm (workstation). Qhov kawg-plugs yog muab nrog connectors rau suppressing reflected terminators (sawv) yoj.

Feem ntau cov khoom yog ntsia lub qhov ( "niam"), thiab ntsaws rau cable ( "txiv"). By tsim BNC-connectors yog ncaj thiab angular. Xeem siv nyob rau hauv daim ntaub ntawv nyob qhov twg lub cable yuav tsum ua ib tug ntse khoov, uas yog heev undesirable rau coaxial cables. Yog li ntawd, cov neeg ua hauj lwm ntog mus rau lub angular tsim.

Lub tswv yim ntawm ib tug bayonet xauv lawm zoo heev. Ib tug threaded kev twb kev txuas yog phim rau siv, vim nws yog tsim nyog los tig rau lub axis ntawm lub cable. Qhov teeb meem no yog tsis ib txwm yooj yim, txawm union noob txiv. Threaded sib txuas yog jammed vaj tse, phem lem thiab yuav tsum tau sij hawm ntau heev mus cuag thiab disconnect tus connector. Tiabsis cov raws li nyob rau hauv tsis sib haum xeeb li nyob rau hauv tsev cov khoom siv, yog tsis tsim nyog vim hais tias cov connector heev yooj yim mus rub tawm ntawm cov qhov.

Bayonet yog heev yooj yim mus ua thiab ua txhaum. Nws yog txaus tso siab rau lub nplos thiab tig nws rau lub axis. Tag nrho nws yuav siv sij hawm tsawg tshaj li ib ob. Nyob rau tib lub sij hawm, rub lub plug yuav tsis vam meej.

Yog li ntawd lub BNC connectors yog hloov yuav luag tag nrho nws yog cov kuaj seev. Rau computer tes hauj lwm, nws kuj tsim qhov zoo tshaj plaws ntawm tag nrho - vim hais tias ntawm cov kev ceev ntawm ua hauj lwm nrog nws thiab tus impossibility ntawm cov lo disconnection.

Npav BNC muaj xws li hauv qab no:

• BNC - soldering los yog crimping;
• BNC-T - tee (rau Ethernet adapters);
• BNC-F - xaiv connector nrog cov ntsia hlau zawm;
• BNC-Kuv - kev twb kev txuas ntawm ob cables.

Connectors yuav tsum tau siv heev dua lwm yam rau soldering thiab, dua li, kub hu rau ntsuas cov cuab yeej siv. Qhov no thiaj li tau kom raug. Rau cov seem mob haum crimp connectors, tab sis lawv yuav tsum tau ntsia xwb nyob rau hauv ib tug tshwj xeeb CRIMP cuab tam. Cov yav tas kev xaiv no yog cheaper npaum li ntsuas connectors, ceev rau nruab, ces nws yog ntau pom dua soldering.

Yog li, Yog hais tias koj xav mus rau Mount ib lub zos network ntawm «n» computers, qhov no yuav tsum tau ib tug tsawg kawg nkaus ntawm ua «2n» sib txuas rau lub cables, thiab tej zaum kuj ntau.