Izinqubomgomo eziyi-11 eziyisisekelo zokukhethwa kwesixhumi
Njengomunye wamadivayisi asetshenziswa kakhulu, izixhumi zihlangana nobunzima obuthile ngesikhathi senqubo yokukhetha. Uma singaziqonda izimiso eziyisisekelo zokukhethwa okulandelayo kwezixhumi eziyi-11 kusengaphambili, kuzoba lula ukuthola imikhiqizo yesixhumi ehlangabezana nezidingo zethu.
1. Umthamo wamanje wokuthwala
Lapho ukhetha isixhumi sokudluliselwa kwesiginali yamandla, ukunakwa kufanele kukhokhwe kumthamo okhona wamanje wesixhumi, kanye nomklamo wokulinganisa oncishisiwe kufanele amukelwe. Ngasikhathi sinye, ukunakwa kufanele kukhokhwe kukufakelwa kanye nokumelana kwamandla kagesi phakathi kwezikhonkwane.
2. Ubukhulu obuhlelekile
Ubukhulu bangaphandle lesixhumi kubaluleke kakhulu. Kunemikhawulo ethile yendawo yokuxhumana emkhiqizweni, ikakhulukazi izixhumi kumabhodi eyodwa, ezingakwazi ukuphazamisa ezinye izinto. Khetha indlela efanele yokufaka esekwe esikhaleni sokusetshenziswa nendawo yokufaka (ukufakwa kufaka ukufakwa kwangaphambili nokufakwa kwangemuva, nezindlela zokufaka zifaka ama-rivets, izikulufo, izindandatho ezisheshayo, noma ukukhiya okusheshayo kwesixhumi uqobo) nokubukeka (okuqondile, kugobe, I-T-shape, isiyingi, isikwele).
(Xhuma ku-D-Sub Isixhumi, i-DB25 Owesilisa)
3. Ukuqhathaniswa kokufanisa
Ezinye izinkomba zinezidingo zokuvimbela, ikakhulukazi amasiginali we-RF, adinga ukufana okuqinile okuqinile. I-Imperance Mismatch ingadala ukuboniswa kwesiginali, ngaleyo ndlela kuthinte ukuhanjiswa kwesiginali. Azikho izidingo ezikhethekile zokuphazamiseka kwezixhumi ekudluliseleni okujwayelekile kwesiginali.
4. Ukuvikelwa
Ngokuthuthukiswa kwemikhiqizo yezokuxhumana, i-EMC iya ngokuya ibalwa. Lapho ukhetha izixhumi, igobolondo lensimbi liyadingeka, futhi izintambo zidinga ukuba nesendlalelo sokuvikela. Isendlalelo sokuvikela kufanele ixhunywe kwigobolondo lensimbi lesixhumi ukuze lifinyelele umphumela wokuvikelwa. Ukubumba kokukhwabanisa nakho kungasetshenziswa ukusonga indawo ye-plug ngeshidi lethusi, futhi ungqimba lokuvikela ikhebula luhlanganiswe kanye nephepha lethusi.
(M12 4-PIN-PIN-PINB PCB Ukufakwa kwesixhumi)
5. Vimbela Disnsission
Kunezici ezimbili zokuvimbela i-Disnsission: Ngakolunye uhlangothi, yisixhumi uqobo. Isixhumi ngokwayo sijikeleza ama-degree angama-180 futhi sikhohliswe, okuholela ekuxhumekeni kwesiginali okungalungile. Kulokhu, kuyadingeka ukuthi ukhethe isixhumi se-anti misinsissionar ngangokunokwenzeka, noma ulungise isikhundla esihlobene nesixhumi ukwenza umhlangano uhlukile.
Ngakolunye uhlangothi, ukuze kuncishiswe izinhlobonhlobo zezinto zokwakha, amasiginali ambalwa asebenzisa isixhumi esifanayo. Kulokhu, kungenzeka ukuxhuma ipulaki ku-B Socket. Kubalulekile ukuqaphela ukuthi uma kwenzeka isimo esinjalo, kuzodala imiphumela emibi (hhayi i-alamu elula, nemiphumela ebhubhisayo). Ngakho-ke, ukuhlangana kwe-A no-B kumele kukhethwe njengezinhlobo ezahlukene zezinyawo (ezifana nowesilisa no-B zingowesifazane).
6. Ukwethembeka
Isixhumi sisetshenziselwa ukuxhuma amasiginali, ngakho-ke ingxenye yokuxhumeka idinga ukuthembeka okwengeziwe, njengokuxhumana komhlaba ngokuvamile kungcono kunokuxhumana ngephuzu, uhlobo lwe-pinhole lungcono kunohlobo lwe-LEAF SPRICE, njll.
7.
Enqubweni yokukhetha yezixhumi, kuyadingeka ukuthi ukhethe izinto zendawo yonke ngangokunokwenzeka, ikakhulukazi phakathi kwemikhiqizo yochungechunge olufanayo. Ukukhethwa kwezixhumi kunama-surtvent aqinile, kunciphisa izinhlobo zezinto zokwakha, ukwandisa inani, ukunciphisa izindleko, kanye nokunciphisa ubungozi bokunikezela.
(I-Keystone RJ45 Socket enezinhlobo ezingaphezu kuka-6 zokuvikela nethuluzi mahhala)
8. Imvelo yokusebenzisa
Lapho usebenzisa izixhumi ngaphandle, ngaphakathi, izinga lokushisa eliphakeme, umswakama ophezulu, isifutho sikasawoti, isikhunta, ukubanda kanye nezinye izidingo zezixhumi.
9. Ukufakwa kanye nokususwa imvamisa
Ukufaka nokususwa kwezixhumi zinempilo ethile. Ngemuva kokufinyelela umkhawulo wokufakwa nezikhathi zokususa, ukusebenza komshini kuzokwehla. Lapho ukhetha izixhumi, kubalulekile ukuthi unake kakhulu inani lokufakwa nezikhathi zokususa kwezinye izindawo zokuxhumana ezidinga ukufakwa kaninginingi.
10. Isimo esibikiwe
Khetha isikhonkwane noma isixhumi sohlobo lwe-hole kususelwa ekutheni kuhlale kukhishwe noma cha.
11. Ukucatshangelwa jikelele
Enqubweni yokukhetha izixhumi, izinto ezahlukahlukene azizimele futhi zivame ukuhlangana nomunye. Ngakho-ke, kudingeka sicabangele ngokuphelele futhi sikhethe isixhumi esifaneleke kakhulu kwinqubo yokukhetha isixhumi. Izinga lokukhethwa lizothinta ukusetshenziswa komkhiqizo ngamazinga ahlukahlukene ngezigaba ezahlukahlukene.
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