Imbaraga hejuru ya tekinoroji ya Ethernet (PoE) yahinduye uburyo dukoresha ibikoresho byurusobe twemerera imbaraga namakuru byombi byoherezwa hejuru ya kabili ya Ethernet. Nyamara, abakoresha benshi bibaza intera ntarengwa yo kohereza kuri PoE. Gusobanukirwa nibintu bigira ingaruka kuriyi ntera ningirakamaro mugutegura neza imiyoboro no kuyishyira mubikorwa.

Niki kigaragaza intera ntarengwa ya PoE?

Ikintu gikomeye muguhitamo intera ntarengwa ya PoE nubwiza nubwoko bwumugozi uhindagurika wakoreshejwe. Ibipimo bisanzwe bya cabling birimo:

Shanghai-Aipu-Waton-Electronic-Inganda-Co-Ltd-

Icyiciro cya 5 (Injangwe 5)

Shyigikira umuvuduko ugera kuri 100 Mbps

Icyiciro 5e (Injangwe 5e)

Kuzamura verisiyo hamwe nibikorwa byiza, nayo ishyigikira 100 Mbps.

Icyiciro cya 6 (Injangwe 6)

Irashobora gukora umuvuduko ugera kuri 1 Gbps.

Hatitawe ku bwoko bwa kabili, ibipimo nganda bishyiraho intera ntarengwa yo kohereza metero 100 (metero 328) kugirango uhuze amakuru hejuru ya insinga za Ethernet. Iyi mipaka ningirakamaro mu kubungabunga ubuziranenge bwamakuru no kwemeza itumanaho ryizewe.

Ubumenyi Bwihishe inyuma ya metero 100

Iyo wohereza ibimenyetso, insinga zigoretse zifite uburambe bwo guhangana nubushobozi, bishobora kuganisha ku kwangirika kw'ibimenyetso. Nkikimenyetso kinyura kumurongo, kirashobora:

Icyitonderwa:

Gutakaza imbaraga zerekana ibimenyetso hejuru.

Kugoreka:

Guhindura ibimenyetso byerekana ibimenyetso, bigira ingaruka kumurongo.

Iyo ubwiza bwibimenyetso bumaze kugabanuka kurenza ibipimo byemewe, bigira ingaruka nziza yo kohereza kandi birashobora gutuma habaho gutakaza amakuru cyangwa amakosa yo gupakira.

Kubara Intera yoherejwe

Kuri 100Base-TX, ikora kuri 100 Mbps, igihe cyo kohereza amakuru amwe, azwi nka "bit time", ibarwa ku buryo bukurikira:

[\ inyandiko Time Igihe gito} = \ frac {1} {100, \ inyandiko {Mbps}} = 10, \ inyandiko {ns}]

Ubu buryo bwo kohereza bukoresha CSMA / CD (Carrier Sense Multiple Access with Collision Detection), itanga uburyo bwo kugongana neza kumurongo usangiwe. Ariko, niba uburebure bwa kabili burenze metero 100, amahirwe yo kumenya kugongana aragabanuka, bishobora gutakaza amakuru.

Ni ngombwa kumenya ko mugihe uburebure ntarengwa bwashyizwe kuri metero 100, ibintu bimwe bishobora kwemerera guhinduka. Umuvuduko wo hasi, kurugero, urashobora kwagura intera ikoreshwa kugera kuri metero 150-200, bitewe nubwiza bwumugozi nuburyo imiterere y'urusobe.

Ibyifuzo bya Cable Uburebure Ibyifuzo

Mubikorwa-byukuri, gukurikiza byimazeyo metero 100 ni byiza. Nyamara, abanyamwuga benshi basaba gukomeza intera ya metero 80 kugeza kuri 90 kugirango barebe ko bizerwa kandi bagabanye ibibazo byose bishobora kuba byiza. Iyi ntera yumutekano ifasha kwakira itandukaniro muburyo bwa kabili nuburyo bwo kwishyiriraho.

Mugihe insinga zifite ubuziranenge zishobora rimwe na rimwe kurenga metero 100 zidafite ibibazo byihuse, ubu buryo ntabwo busabwa. Ibibazo bishobora kugaragara mugihe, biganisha kumurongo ukomeye uhungabana cyangwa imikorere idahagije nyuma yo kuzamurwa.

Umwanzuro

Mu ncamake, intera ntarengwa yoherejwe kuri tekinoroji ya PoE iterwa cyane cyane nicyiciro cyinsinga zahinduwe hamwe nimbogamizi zifatika zo kohereza ibimenyetso. Imipaka ya metero 100 yashyizweho kugirango ifashe kugumana ubunyangamugayo no kwizerwa. Mugukurikiza ibyifuzo byogushiraho no gusobanukirwa amahame shingiro yo kohereza Ethernet, abanyamwuga barashobora gukora neza kandi neza.

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