N'ime ngwa Ethernet, mgbe ejikọrọ mgbawa PHY na RJ, a na-agbakwụnye ihe ntụgharị netwọkụ.Mgbatị etiti ụfọdụ ihe ngbanwe netwọk gbadoro ụkwụ.Ụfọdụ na-ejikọta ya na ọkụ ọkụ, na uru ọkụ eletrik nwere ike ịdị iche, gụnyere 3.3V, 2.5V, na 1.8V.Mgbe ahụ ka esi jikọọ n'etiti mgbata (PHY end) nke transformer?
A. Gịnị kpatara ejikọrọ ụfọdụ ọkpọkọ etiti na ike?Ụfọdụ nwere n'ala?
A na-ekpebi nke a site n'ụdị ọkwọ ụgbọ mmiri UTP nke mgbawa PHY ejiri.A na-ekewa ụdị draịva n'ime: mbanye voltaji na mbanye ugbu a.Jikọọ ọkụ ọkụ mgbe ị na-anya voltaji;jikọọ capacitor na ala mgbe ị na-akwọ ụgbọala na nke ugbu a.Ya mere, usoro njikọ nke mgbata etiti nwere njikọ chiri anya na ụdị ụgbọ mmiri UTP nke mgbawa PHY.N'otu oge ahụ, biko rụtụ aka na mpempe akwụkwọ data na ntinye aka nke mgbawa.
Mara: Ọ bụrụ na ejikọrọ mgbata etiti ahụ na-ezighi ezi, ọdụ ụgbọ mmiri netwọk ga-adị oke mma ma ọ bụ gbochie ya.
N'ime ngwa Ethernet, mgbe ejikọrọ mgbawa PHY na RJ, a na-agbakwụnye ihe ntụgharị netwọkụ.Mgbatị etiti ụfọdụ ihe ngbanwe netwọk gbadoro ụkwụ.Ụfọdụ na-ejikọta ya na ọkụ ọkụ, na uru ọkụ eletrik nwere ike ịdị iche, gụnyere 3.3V, 2.5V, na 1.8V.Mgbe ahụ ka esi jikọọ n'etiti mgbata (PHY end) nke transformer?
B. Kedu ihe kpatara eji ejikọta ya na voltaji dị iche iche mgbe ejikọtara ya na ọkụ eletrik?
A na-ekpebikwa nke a site na ọkwa ọdụ ụgbọ mmiri UTP akọwapụtara na data mgbawa PHY ejiri.A ghaghị ijikọ ọkwa ahụ na voltaji kwekọrọ, ya bụ, ọ bụrụ na ọ bụ 1.8v, a ga-adọta ya na 1.8v, ọ bụrụ na ọ bụ 3.3v, a ga-adọta ya ruo 3.3v.
Ọrụ nke mgbata etiti nke LAN transformer:
1. Belata nkịtị mode voltaji ugbu a na nkịtị mode voltaji na USB site na-enye a ala impedance nloghachi ụzọ maka nkịtị mode mkpọtụ na dị iche iche akara;
2. Maka ụfọdụ transceivers, nye voltaji nke DC ma ọ bụ isi iyi ike.
Mbelata ọnọdụ RJ agbakwunyere nwere ike ịka mma, yana parasitic parasitic adịghị emetụta ya;ya mere, ọ bụ ezie na ọnụahịa ahụ dị oke elu, ọ na-ewu ewu nke ukwuu n'ihi ntinye ya dị elu, obere oghere, nkwụsị nke ọnọdụ nkịtị, parasitic parasitic parasitic parasitic parasitic parasitic parasitic parasitic parasitic parasitic parasitic parasitic parasitic parasitic parasitic parasites.ndewo.
Gịnị bụ ọrụ nke netwọk transformer?Ị nweghị ike iburu ya?
N'ikwu okwu n'ụzọ doro anya, ọ nwere ike ịrụ ọrụ nke ọma na-enweghị ijikọ ihe ntụgharị netwọkụ yana jikọọ na RJ ozugbo.Otú ọ dị, ebe nnyefe ga-adị oke, ọ ga-emetụtakwa ya mgbe ejikọtara ya na ọdụ ụgbọ mmiri netwọk nke ọkwa dị iche.Na nnyonye anya mpụga na mgbawa dịkwa ukwuu.Mgbe ejikọrọ ihe ngbanwe netwọkụ, a na-ejikarị ya maka njikọta ọkwa ọkwa.1. Mee ka mgbaàmà dị ike iji mee ka nnyefe dị anya;2. Kewapụ njedebe mgbawa site n'èzí, kwalite ikike mgbochi mgbochi, ma nwekwuo nchebe nke mgbawa (dị ka ọkụ ọkụ);3. Mgbe ejikọrọ na ọkwa dị iche iche (dị ka ụfọdụ PHY ibe bụ 2.5V, na ụfọdụ PHY ibe bụ 3.3V), ọ gaghị emetụta onye ọ bụla ọzọ ngwaọrụ.
N'ozuzu, ihe ngbanwe netwọk nwere ọrụ nke nnyefe mgbaàmà, impedance datching, nrụzi ebili mmiri, nkwụsị mgbagha mgbaàmà na ikewapụ elu voltaji.
Oge nzipu: Mee-08-2021