labarai

A cikin kayan aikin Ethernet, lokacin da aka haɗa guntu PHY zuwa RJ45, yawanci ana ƙara taswirar hanyar sadarwa.Wasu cibiyar taswirar hanyar sadarwa ta famfo ƙasa.Wasu suna haɗa da wutar lantarki, kuma ƙimar wutar lantarki na iya bambanta, 3.3V, 2.5V, 1.8V.Yadda za a haɗa tafsirin matsakaitan wutar lantarki (PHY end)?

A. Me yasa ake haɗa wasu famfo na tsakiya zuwa wutar lantarki?Wasu grounding?

An ƙayyade wannan musamman ta nau'in direban UTP na phy chip.Nau'in tuƙi ya kasu kashi-kashi na tuƙi da kuma tuƙi na yanzu.Lokacin tuƙi ta hanyar ƙarfin lantarki, ana haɗa shi da wutar lantarki;Lokacin tuƙi ta halin yanzu, ana haɗa shi da capacitor zuwa ƙasa.Sabili da haka, hanyar haɗin cibiyar famfo tana da alaƙa da kusanci da nau'in direban tashar tashar jiragen ruwa na UTP na phy chip, da kuma bayanan ƙira da ƙirar guntu.

Lura: idan an haɗa fam ɗin tsakiya ba daidai ba, tashar tashar sadarwar za ta zama marar ƙarfi sosai ko ma an toshe ta.

B. Me yasa ake haɗa nau'ikan ƙarfin lantarki daban-daban da wutar lantarki?

Hakanan an ƙaddara wannan ta matakin tashar tashar tashar UTP da aka ƙayyade a cikin bayanan guntu na PHY da aka yi amfani da su.Dole ne a haɗa matakin da ƙarfin lantarki mai dacewa, wato, idan 1.8V ne, ja har zuwa 1.8V, idan 3.3V ne, ja har zuwa 3.3V.

Tasirin matsawar tsakiya:

1. Ta hanyar samar da ƙananan hanyar dawowar rashin ƙarfi na yanayin yanayi na yau da kullum a kan layi mai ban sha'awa, yanayin halin yanzu na yau da kullum da ƙarfin lantarki na yau da kullum akan kebul yana raguwa;

2. Samar da wutar lantarki na son rai na DC ko tushen wutar lantarki don wasu transceivers.

Haɗe-haɗewar yanayin gama gari na RJ45 na iya yin mafi kyau, kuma tasirin sigogin parasitic yana da ɗan ƙaramin ƙarfi;don haka, duk da cewa farashin yana da girma, amma kuma yana da farin jini sosai ga injiniyoyi saboda babban haɗin kai, ƙananan aikin sararin samaniya, yanayin yanayin gama gari, sigogin parasitic da sauran fa'idodi.

3. Menene aikin gidan wuta na cibiyar sadarwa?Ba za mu iya dauka ba?

A ka'ida, ana iya haɗa shi kai tsaye zuwa RJ45 ba tare da taswirar hanyar sadarwa ba, kuma yana iya aiki kullum.Koyaya, nisan watsawa zai iyakance, kuma lokacin da aka haɗa shi zuwa cibiyar sadarwar matakin daban-daban, shima zai yi tasiri.Kuma tsangwama na waje ga guntu shima babba ne.Lokacin da aka haɗa shi da gidan wuta na cibiyar sadarwa, ana amfani dashi galibi don haɗa matakin matakin sigina.1. Haɓaka siginar, don haka nisan watsawa ya fi tsayi;na biyu, sanya guntu ƙarshen da keɓewar waje, haɓaka ikon hana tsangwama, da haɓaka kariyar guntu (kamar walƙiya);na uku, idan an haɗa su zuwa matakai daban-daban (kamar wasu guntu na PHY 2.5V, wasu guntu na PHY shine 3.3V) na tashar tashar sadarwa, ba zai shafi kayan aikin juna ba.

Gabaɗaya magana, gidan wutar lantarki na cibiyar sadarwa yana da ayyukan watsa sigina, daidaita matsewa, gyaran tsarin igiyar ruwa, datse sigina da keɓancewar wutar lantarki.