Momwe Wakompyuta Wogwirira Ntchito Amagwirira Ntchito
Jack Jack (RJ45) yovomerezeka ndi mtundu wovomerezeka wa zingwe zamakono. Malumikizano a RJ45 amapezeka kwambiri ndi makina a Ethernet ndi ma intaneti.
Zipangizo zamakono za Ethernet zimaphatikizapo mapulasitiki ang'onoang'ono a pulasitiki pamapeto onse omwe amalowetsamo ma jacks a RJ45 a Ethernet. Mawu akuti "pulagi" amatanthauza kumapeto kwa mgwirizano kapena "male" pamene mawu akuti "jack" amatanthauza mapepala kapena mapeto a "akazi".
RJ45, RJ45s, ndi 8P8C
Zipangizo za RJ45 zimaphatikizapo mapepala asanu ndi atatu omwe makina opangira waya amagwiritsira ntchito magetsi. Phukusi lirilonse liri ndi malo asanu ndi atatu omwe amakhalapo pafupifupi 1 mm pambali pa waya omwe amaphatikiziridwa pogwiritsa ntchito zipangizo zamakono zothandizira zida. 8P8C, shorthand for Eight udindo, Contact Eight).
Zingwe za Ethernet ndi ojambulira 8P8C ayenera kuponyedwa mu RJ45 wiring pattern kuti agwire bwino. Mwachidziwitso, 8P8C ingagwiritsidwe ntchito ndi mitundu ina yolumikiza kupatula Ethernet; imagwiritsidwanso ntchito ndi zingwe za serial RS-232 , mwachitsanzo. Komabe, chifukwa chakuti RJ45 ndi yaikulu kwambiri ya 8P8C, akatswiri ogulitsa ntchito nthawi zambiri amagwiritsa ntchito mawu awiri mosiyana.
Ma modem ojambula apadera amagwiritsidwa ntchito mosiyana ndi RJ45 wotchedwa RJ45s, omwe ali ndi awiri okha ojambula mu kasinthidwe ka 8P2C m'malo asanu ndi atatu. Kufanana kofanana kwa RJ45 ndi RJ45s kunapangitsa kuti zikhale zovuta kuti diso losaphunzitsidwa liwonetsetse awiriwo.
Zowonjezera Zingwe za RJ45 Connectors
Miyezo iwiri ya RJ45 pinouts imatanthauzira makonzedwe a mawaya asanu ndi atatu omwe amafunikira poika zolumikiza ku chingwe: miyezo ya T568A ndi T568B . Zonsezi zimatsatira msonkhano wophimba waya pamodzi mwa mitundu isanu yofiira, yobiriwira, ya lalanje, ya buluu, kapena yoyera.
Pambuyo pa misonkhanoyi ndikofunikira pakupanga zingwe kuti zitsimikizidwe kugwirizana kwa magetsi ndi zipangizo zina. Chifukwa cha mbiri, T568B yakhala yotchuka kwambiri. Tebulo ili m'munsimu likufotokozera mwachidule mitundu iyi yolemba.
| Pinani | T568B | T568A |
|---|---|---|
| 1 | zoyera ndi mzere wa lalanje | zoyera ndi mzere wobiriwira |
| 2 | lalanje | zobiriwira |
| 3 | ndi mzere wobiriwira | zoyera ndi mzere wa lalanje |
| 4 | buluu | buluu |
| 5 | zoyera ndi mzere wabuluu | zoyera ndi mzere wabuluu |
| 6 | zobiriwira | lalanje |
| 7 | zoyera ndi mzere wofiirira | zoyera ndi mzere wofiirira |
| 8 | bulauni | bulauni |
Mitundu yambiri yowumikiza ikufanana kwambiri ndi RJ45, ndipo imatha kusokonezeka mosavuta. Zingwe za RJ11 zomwe zimagwiritsidwa ntchito ndi zingwe za foni, mwachitsanzo, gwiritsani ntchito zigawo zisanu ndi chimodzi mmalo mwake m'malo mojambulira asanu ndi atatu, kuzipanga zochepa kwambiri kuposa zolumikiza RJ45.
Nkhani Zili ndi RJ45
Kuti apange mgwirizano wolimba pakati pa pulagi ndi phukusi lamakono, ena a RJ45 plugs amagwiritsira ntchito chidutswa cha pulasitiki chochepa, chokongoletsedwa chotchedwa tab. Tsambali limapanga chisindikizo cholimba pakati pa chingwe ndi doko pa kuika, kufuna munthu kuti agwiritse ntchito kutsika pansi pa tabu kuti alole kutsegula. Izi zimathandiza kuteteza chingwe kuchoka mwangozi. Mwamwayi, ma tebulowa amathyoka mosavuta pamene akugwedera kumbuyo, zomwe zimachitika pamene chojambulira chimagwedeza pa chingwe china, zovala, kapena chinthu china chapafupi.