Njikọ eriri anya
Njikọ fiber optic nwere eriri na plọg na nsọtụ abụọ nke eriri ahụ.Plọg ahụ nwere ntụtụ na nchikota mpụta. Dị ka usoro mkpọchi dị iche iche si dị, njikọ eriri nwere ike kewaa n'ime ụdị FC, ụdị SC, ụdị LC, ụdị ST na ụdị KTRJ.
Njikọ FC na-anabata usoro mkpọchi eri na bụ njikọ eriri anya mbugharị nke bụ ihe izizi na nke ejiri mee ihe.
SC bụ nkwonkwo akụkụ anọ nke NTT mepụtara.Enwere ike itinye ya ozugbo wee wepụ ya na-enweghị njikọ eri.E jiri ya tụnyere njikọ FC, ọ nwere obere ohere ọrụ ma dị mfe iji.Ngwaahịa Ethernet dị ala na-adịkarị.
Ejiri AT & T mepụtara njikọ ST ma na-eji usoro mkpọchi bayonet. Ihe ndị na-egosi isi ihe dị ka njikọ FC na SC, ma ha anaghị adịkarị na ngwa ụlọ ọrụ.A na-ejikarị ha na ngwaọrụ ụdịdị ọtụtụ ma a na-ejikarị ya eme ihe mgbe ejiri ngwa ndị nrụpụta ndị ọzọ tinye ya.
A na-eji rọba mee ntụtụ KTRJ ma tinye ya na ntụtụ ígwè.Ka ọnụ ọgụgụ ntinye na mwepụ na-abawanye, ihe ndị na-emepụta ihe na-eyi ma na-eyi, na nkwụsi ike ogologo oge adịghị mma dị ka njikọ pin seramiiki.
Ihe ọmụma nke eriri anya
Fiber optical bụ onye na-eduzi na-ebunye ebili mmiri ọkụ. Enwere ike kewaa eriri anya n'ime otu mode fiber na multimode fiber si mode nke nnyefe anya.
Na otu-mode eriri, ìhè nnyefe nwere naanị otu isi mode, nke pụtara na ìhè na-ebute site ná nanị tinyere n'ime isi nke fiber.Since mode dispersion kpamkpam ezere, otu-mode eriri nwere obosara nnyefe gbalaga na adabara. maka nnukwu ọsọ, nkwurịta okwu fiber dị ogologo.
Na multimode eriri, e nwere ọtụtụ ụdịdị nke ngwa anya nnyefe.N'ihi mgbasa ma ọ bụ aberration, ọrụ nnyefe nke eriri anya dị otú ahụ adịghị mma, eriri ugboro dị warara, ọnụego nnyefe dị ntakịrị, na anya dị mkpụmkpụ.
Ngwa anya eriri njirimara parameters
Ọdịdị nke eriri anya bụ prefabricated site quartz eriri mkpanaka, na mpụta dayameta nke multimode eriri na otu mode eriri maka nkwurịta okwu bụ ma 125.μm.
The slimming na-ekewa n'ime abụọ ebe: Core na Cladding Layer.The single-mode fiber core nwere a isi dayameta nke 8 ~ 10.μm.The multimode eriri isi dayameta nwere abụọ ọkọlọtọ nkọwa, na isi dayameta bụ 62.5μm (ọkọlọtọ US) na 50μm (ọkọlọtọ Europe).
Nkọwapụta eriri interface nwere nkọwa dị otú ahụ: 62.5μm/125μm multimode eriri, nke 62.5μm na-ezo aka na isi dayameta nke eriri, na 125μm na-ezo aka na dayameta mpụta nke eriri.
Otu ụdị eriri eriri na-eji ogologo wavelength nke 1310 nm ma ọ bụ 1550 nm.
Multimode eriri na-eji ogologo wavelength nke 850 nm.
Single mode eriri na multimode eriri nwere ike iche na agba.The otu-mode eriri elu ahụ bụ odo, na multimode eriri elu ahụ bụ oroma-acha ọbara ọbara.
Gigabit ngwa anya ọdụ ụgbọ mmiri
Ọdụ ụgbọ mmiri Gigabit nwere ike ịrụ ọrụ na ụdị mmanye na akpaaka akpaaka. Na nkọwapụta 802.3, ọdụ ụgbọ mmiri Gigabit na-akwado naanị ọsọ 1000M ma na-akwado ụdị duplex zuru ezu (Full) na ọkara duplex (Ọkara).
Ihe kachasị dị iche n'etiti mkparịta ụka akpaaka na mmanye bụ na iyi koodu ezitere mgbe ha abụọ guzobe njikọ anụ ahụ dị iche.Ụdị mkparịta ụka akpaaka na-eziga koodu /C/, nke bụ iyi nhazi koodu, na ọnọdụ mmanye na-eziga / I / koodu, nke bụ iyi na-abaghị uru.
Gigabit optical port onwe – usoro mkparita uka
Nke mbụ: edobere nsọtụ abụọ ahụ ka ọ bụrụ ọnọdụ mkparita uka akpaaka
Ndị otu abụọ ahụ na-ezigara ibe ha / C / code iyi.Ọ bụrụ na enwetara / C/ Koodu atọ n'otu n'otu na iyi koodu enwetara dabara na ọnọdụ ọrụ nke njedebe mpaghara, ndị ọzọ na-eweghachi koodu /C/ yana nzaghachi Ack.Mgbe ị nwetasịrị ozi Ack, onye ọgbọ ahụ na-eche na ha abụọ nwere ike ikwurịta okwu ma debe ọdụ ụgbọ mmiri na steeti UP.
Nke abụọ: otu njedebe ka atọrọ na mkparịta ụka akpaaka, otu njedebe ka edobere ka iwu
Ọgwụgwụ mkparịta ụka akpaaka na-eziga /C/stream, na njedebe mmanye na-eziga /I/stream.Ọgwụgwụ mmanye enweghị ike inye onye ọgbọ ya ozi mkparịta ụka nke njedebe mpaghara, ma enweghị ike iweghachi nzaghachi Ack na ndị ọgbọ ya.Ya mere, njedebe akpaaka mkparịta ụka DOWN. Otú ọ dị, njedebe mmanye n'onwe ya nwere ike ịmata / C / koodu, ma chee na njedebe ndị ọgbọ bụ ọdụ ụgbọ mmiri na-ejikọta onwe ya, ya mere dozie ọdụ ụgbọ mmiri ozugbo na steeti UP.
Nke atọ: A na-edozi nsọtụ abụọ a ka ọ bụrụ ọnọdụ amanyere iwu
Ndị otu abụọ ahụ na-ezigara ibe ha / m / iyi.Mgbe ọ nwetasịrị / I / iyi, onye ọgbọ na-ewere na onye ọgbọ bụ ọdụ ụgbọ mmiri nke dabara na ndị ọgbọ.
Kedu ihe dị iche n'etiti multimode na singlemode fiber?
Multimode:
A na-akpọ eriri ndị nwere ike ịga njem site na narị otu narị ruo ọtụtụ puku ụdịdị a na-akpọ multimode (MM) fibers. Dị ka radial nkesa nke refractive index na isi na cladding, ọ nwere ike ọzọ kewara n'ime nzọụkwụ multimode eriri na gradual multimode fiber. multimode fibers bụ 50/125 μm ma ọ bụ 62.5 / 125 μm n'ogo, na bandwit (ọnụọgụ ozi na-ebufe site na eriri) na-abụkarị 200 MHz na 2 GHz. Multimode optical transceivers nwere ike iburu ruo 5 kilomita nke nnyefe n'elu multimode fiber. .A na-eji diode na-ebunye ọkụ ma ọ bụ laser dị ka isi iyi ọkụ.
Ụdị otu:
A eriri nwere ike ịgbasa otu mode ka a na-akpọ otu mode fiber.The ọkọlọtọ single mode (SM) eriri refractive index profaịlụ yiri nzọụkwụ eriri, ma e wezụga na isi dayameta bụ nnọọ nta karịa multimode eriri.
The size nke otu mode eriri bụ 9-10/125μm ma nwee bandwidth na-enweghị njedebe na njirimara ọnwụ dị ala karịa multimode fiber. A na-ejikarị transceivers anya nke otu ọnọdụ maka nnyefe dị anya, mgbe ụfọdụ na-eru 150 ruo 200 kilomita.A na-eji ọkụ LED nwere LD dị warara ma ọ bụ ahịrị spectral dị ka isi iyi ọkụ.
Ọdịiche na njikọ:
Ngwaọrụ ndị nwere otu ụdị na-arụkarị ọrụ na fibers nke otu ụdị yana multimode fibers, ebe ngwaọrụ multimode nwere oke ịrụ ọrụ na eriri multimode.