Zolakwika zisanu ndi chimodzi zodziwika bwino za fiber optic transceivers

Fiber optic transceiver ndi Ethernet transmission media conversion unit yomwe imasinthanitsa ma siginecha amagetsi opindika atalitali komanso ma sign akutali.Imatchedwanso photoelectric converter (Fiber Converter) m'malo ambiri.

1. Kuwala kwa Link sikuyatsa

(1) Yang'anani ngati chingwe cha optical fiber ndi chotseguka;

(2) Yang'anani ngati kutayika kwa mzere wa optical fiber ndi waukulu kwambiri, womwe umaposa kulandirira kwa zida;

(3) Onani ngati mawonekedwe a fiber optical akugwirizana bwino, TX yapafupi imagwirizanitsidwa ndi RX yakutali, ndipo TX yakutali imagwirizanitsidwa ndi RX yapafupi.(d) Onani ngati cholumikizira cha fiber cholumikizira chayikidwa bwino mu mawonekedwe a chipangizocho, ngati mtundu wa jumper umagwirizana ndi mawonekedwe a chipangizocho, ngati mtundu wa chipangizocho ukugwirizana ndi ulusi wa kuwala, komanso ngati kutalika kwa chipangizocho kumagwirizana ndi mtunda.

2. Kuwala kwa dera la Link sikuyatsa

(1) Onani ngati chingwe cha netiweki chatsegulidwa;

(2) Onani ngati mtundu wa kugwirizana ukufanana: makhadi a maukonde ndi ma routers ndi zida zina zimagwiritsa ntchito zingwe zodutsa, ndipo masiwichi, ma hubs ndi zida zina zimagwiritsa ntchito zingwe zowongoka;

(3) Onani ngati mlingo wa kufala kwa chipangizocho ukufanana.

3. Kutayika kwakukulu kwa paketi ya network

(1) Doko lamagetsi la transceiver ndi mawonekedwe a chipangizo cha netiweki, kapena mawonekedwe a duplex a mawonekedwe a chipangizo kumapeto onse awiri sagwirizana;

(2) Pali vuto ndi chingwe chopotoka ndi mutu wa RJ-45, choncho fufuzani;

(3) Vuto la kugwirizana kwa CHIKWANGWANI, kaya jumper ikugwirizana ndi mawonekedwe a chipangizo, kaya pigtail ikufanana ndi jumper ndi mtundu wa coupler, ndi zina zotero;

(4) Kaya kutayika kwa mzere wa optical fiber kumapitilira kumvera kwa zida.

4. Pambuyo polumikizana ndi fiber optic transceiver, mapeto awiriwa sangathe kulankhulana

(1) Kulumikizana kwa CHIKWANGWANI kumasinthidwa, ndipo ulusi wolumikizidwa ku TX ndi RX umasinthidwa;

(2) Mawonekedwe a RJ45 ndi chipangizo chakunja sichimalumikizidwa molondola (tcherani khutu ku kuwongoka ndi splicing).Mawonekedwe a fiber optical (ceramic ferrule) samafanana.Cholakwika ichi chimawonetsedwa makamaka mu transceiver ya 100M yokhala ndi ntchito yoyang'anira ma photoelectric, monga ferrule ya APC.Pigtail yolumikizidwa ndi transceiver ya PC ferrule sichidzalankhulana bwino, koma sichidzakhudza transceiver yosagwirizana ndi mawonekedwe.

5. Yatsani ndi kuzimitsa chodabwitsa

(1).Zitha kukhala kuti njira yochepetsera kuwala ndi yayikulu kwambiri.Panthawiyi, mita yamagetsi yamagetsi ingagwiritsidwe ntchito kuyesa mphamvu ya kuwala kwa mapeto olandira.Ngati ili pafupi ndi mtundu wolandila, imatha kuonedwa ngati kulephera kwa njira mkati mwa 1-2dB;

(2).Zitha kukhala kuti cholumikizira cholumikizidwa ndi cholumikizira ndicholakwika.Panthawiyi, sinthani kusinthana ndi PC, ndiko kuti, ma transceivers awiri amalumikizidwa mwachindunji ndi PC, ndipo mapeto onse ndi PING.Ngati sichikuwoneka, ikhoza kuweruzidwa ngati kusintha.Kulakwitsa;

(3).Transceiver ikhoza kukhala yolakwika.Panthawiyi, mutha kulumikiza malekezero onse a transceiver ku PC (osadutsa posinthira).Pambuyo pa mapeto onse awiri alibe vuto ndi PING, tumizani fayilo yokulirapo (100M) kapena kupitirira kuchokera kumapeto mpaka kumapeto, ndikuwona kuthamanga kwake, ngati liwiro liri lochepa kwambiri (mafayilo omwe ali pansi pa 200M akhoza kusamutsidwa kwa mphindi zoposa 15), zikhoza kuweruzidwa makamaka ngati kulephera kwa transceiver

6. Makinawo akawonongeka ndikuyambiranso, amabwerera mwakale

Chodabwitsa ichi nthawi zambiri chimayamba chifukwa cha kusintha.Kusinthaku kudzazindikira zolakwika za CRC ndikutsimikizira kutalika kwa data yonse yolandilidwa.Ngati cholakwikacho chapezeka, paketiyo idzatayidwa, ndipo paketi yoyenera idzatumizidwa.

Komabe, mapaketi ena okhala ndi zolakwika munjira iyi sangawonekere pakuzindikira zolakwika za CRC ndikuwunika kutalika.Mapaketi oterowo sadzatumizidwa kapena kutayidwa panthawi yotumiza.Iwo adzaunjikana mu dynamic buffer.(Buffer), sichingatumizidwe konse.Buffer ikadzadza, ipangitsa kuti chosinthiracho chiwonongeke.Chifukwa panthawiyi kuyambitsanso transceiver kapena kuyambiranso kusinthana kumatha kubwezeretsa kulumikizana kwabwinobwino.