Intambo yeVGA
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I-Amzwire ifumana ulwandiso olungenamthungo lwevidiyo enentambo ye-VGA 1 ukuya kwi-2 Splitter ekumgangatho ophezulu, exhasa isisombululo se-1080P kwiikhompyutha nakwiiTV
Uqwalaselo lwesibini samadoda se-VGA 1/2 lubonisa ucwangciso olukhethekileyo kwiintambo ze-VGA (Video Graphics Array), ezisetyenziswa rhoqo ekudibaniseni iikhompyutha, iilaptop, okanye ii-gaming consoles kwiimonitha, iiprojektha, okanye ezinye iiyunithi zokubonisa. Olu lungiselelo lunezihlanganisi ezimbini zamadoda—i-VGA 1 kunye ne-VGA 2—luququzelelo lwenza kube lula ukuhambelana neeports zabasetyhini ezifanelekileyo. Kangangamashumi eminyaka, i-VGA isebenze njengendlela ephambili yokudlulisa imiqondiso yevidiyo ye-analog, ebonakaliswa ngumgangatho ofanelekileyo womfanekiso kunye nokuhambelana kwesixhobo ngokubanzi. Uqwalaselo lwesibini samadoda se-VGA 1/2 lubonelela ngokuguquguquka ekudibaniseni izixhobo ezahlukeneyo ezixhomekeke kubuchwepheshe be-VGA. Ngokwesiqhelo ziquka iintambo ezininzi ze-coaxial ezigqunywe yi-insulation kunye ne-shield, ezi ntambo zinciphisa ukuphazamiseka, ziqinisekisa ukudluliselwa kwemiqondiso yevidiyo ekumgangatho ophezulu. Zixhotyiswe ngeepini ezihambelana ngokuchanekileyo neeports ezifanelekileyo, izihlanganisi ziseka unxibelelwano olukhuselekileyo phakathi kwezixhobo. Olu lungiselelo lubonisa ukuguquguquka ekudibaniseni izixhobo ezahlukeneyo, lulungelelanisa ukudluliselwa kwemiqondiso yevidiyo ye-analog kwiiplatifomu ezahlukeneyo. Nokuba kukwiindawo zobungcali okanye kwiinkqubo zokuzonwabisa zasekhaya, ulungiselelo lwesibini samadoda se-VGA 1/2 lumi njengesisombululo esithembekileyo sokufikelela kunxibelelwano lwevidiyo olungenamthungo. Ngaphezu koko, ngokwakhiwa kwayo okuqinileyo kunye noyilo olusemgangathweni, olu lungiselelo luphucula amava omsebenzisi ngokuncedisa ukuseta okulula kunye nokusebenza okuthembekileyo. Iquka ilifa elihlala lihleli lobuchwepheshe be-VGA, ulungiselelo lwesibini samadoda se-VGA 1/2 luyaqhubeka nokusebenza njengelitye lembombo kwicandelo lokusasazwa kwevidiyo ye-analog.
Xa usebenzisa intambo yesibhangqwana samadoda se-VGA 1/2, abasebenzisi banokulindela ukuhanjiswa kwevidiyo okuthembekileyo, okuxhasa ukulungiswa okuhlala kufikelela kwi-1080p (i-Full HD) okanye ngaphantsi. Nangona kunjalo, kubalulekile ukuqaphela ukuba itekhnoloji ye-VGA iyaqhubeka nokuvumela ukusetyenziswa kwezixhobo zedijithali ezifana ne-HDMI kunye ne-DisplayPort, inikezela ukulungiswa okuphezulu kunye nomgangatho womfanekiso. Ngelixa ukuthandwa kwe-VGA kuncipha, ubukho bayo obuhlala buhleli buqinisekisa ukubaluleka okuqhubekayo kwiimeko apho izixhobo zakudala ziqhubeka khona. Intambo yesibhangqwana samadoda se-VGA 1/2 ivala umsantsa phakathi kwetekhnoloji endala nentsha, ibonelela ngeendlela ezithembekileyo zokunxibelelana kwezixhobo ezingenakho ukuhambelana kojongano lwedijithali. Njengoko itekhnoloji itshintsha, intambo yesibhangqwana samadoda se-VGA 1/2 igcina ukusetyenziswa kwayo, inika abasebenzisi isisombululo esiqhelekileyo nesithembekileyo sokudibanisa izixhobo ezindala ngelixa betshintshela kubuchwepheshe bokubonisa obuphambili.
Intambo ye-VGA, enentloko egqunywe yi-nickel kunye neringi yemagnethi ephindwe kabini, imisela umgangatho omtsha wokudluliselwa kwevidiyo ye-analog ngokuqina kwayo okuphuculweyo kunye nokusebenza kwayo. I-nickel plating entlokweni yentambo isebenza ngeenjongo ezininzi ezibalulekileyo. Okokuqala, isebenza njengomaleko okhuselayo, imelana nokugqwala kunye ne-oxidation, ngaloo ndlela iqinisekisa uqhagamshelo oluhlala luhleli kunye nokuthembeka kwesignali nakwiindawo ezinzima. Okwesibini, i-nickel plating inikezela ngokuqhuba kakuhle, iququzelela ukudluliselwa okubushelelezi nokusebenzayo kwemiqondiso yevidiyo ye-analog phakathi kwezixhobo. Ngaphezu koko, ukufakwa kweeringi zemagnethi ephindwe kabini kuphucula ngakumbi amandla entambo okuthintela ukuphazamiseka kwe-electromagnetic (EMI) kunye nokuphazamiseka kwerediyo (RFI), okubangela ukuphuma kwevidiyo okucocekileyo nokuzinzileyo. Ezi ringi zemagnethi zicoca ngempumelelo ingxolo engafunekiyo kunye nokuphazamiseka okunokonakalisa umgangatho wesignali edluliselweyo, okuqinisekisa umfanekiso ocacileyo nocacileyo kwisixhobo sokubonisa.
Ukudityaniswa kwentloko efakwe i-nickel kunye neeringi zemagnethi ezimbini kuphakamisa intambo ye-VGA ibe sisisombululo esithembekileyo nesisebenza kakuhle sokudibanisa iikhompyutha, iilaptop, okanye ezinye izixhobo ezihambelana ne-VGA kwiimonitha, iiprojektha, okanye izibonisi. Abasebenzisi bayazuza kwimidlalo yevidiyo engaphazanyiswayo kunye nomgangatho ophezulu womfanekiso, nokuba kwiindawo ezichaphazeleka kukuphazamiseka kwe-electromagnetic. Nokuba isetyenziswa kwiindawo zobungcali okanye ukonwabisa umntu, le ntambo ye-VGA iqinisekisa ukuthembeka nokusebenza okugqwesileyo, iqinisa imeko yayo njengenxalenye ebalulekileyo yayo nayiphi na indlela yokuseta i-multimedia.
Ngokudibanisa ulwakhiwo oluqinileyo kunye nobuchwepheshe obuphambili, le ntambo iqinisekisa ukuhanjiswa okungenamthungo kwemiqondiso yevidiyo ye-analog, nto leyo ephumela kwimifanekiso ecacileyo necacileyo. I-nickel plating entlokweni yentambo ibonelela ngokhuseleko ekungcoleni nasekufakweni, iqinisekisa uqhagamshelo oluhlala ixesha elide kunye nokuthembeka kwesignali. Ukongeza, iiringi zemagnethi ezimbini zithintela ngempumelelo ukuphazamiseka kwe-electromagnetic kunye nokuphazamiseka kwerediyo, ziqinisekisa ukuphuma kwevidiyo okuzinzileyo.
