Zolakwika zisanu ndi chimodzi zomwe zimachitika pa ma transceivers a fiber optic

Chosinthira ma fiber optic ndi chipangizo chosinthira ma transmission media cha Ethernet chomwe chimasinthira ma signal amagetsi afupiafupi komanso ma signal akutali. Chimatchedwanso chosinthira ma photoelectric (Fiber Converter) m'malo ambiri.

1. Nyali ya Link siiyaka

(1) Yang'anani ngati chingwe cha ulusi wa kuwala chili chotseguka;

(2) Onetsetsani ngati kutayika kwa chingwe cha ulusi wa kuwala kuli kwakukulu kwambiri, komwe kumaposa kuchuluka kwa zipangizo zomwe zingapezeke;

(3) Onetsetsani ngati mawonekedwe a ulusi wowala alumikizidwa bwino, TX yakomweko yalumikizidwa ku RX yakutali, ndipo TX yakutali yalumikizidwa ku RX yakomweko. (d) Onani ngati cholumikizira cha ulusi wowala chalowetsedwa bwino mu mawonekedwe a chipangizocho, ngati mtundu wa jumper ukugwirizana ndi mawonekedwe a chipangizocho, ngati mtundu wa chipangizocho ukugwirizana ndi ulusi wowala, komanso ngati kutalika kwa kutumiza kwa chipangizocho kukugwirizana ndi mtunda.

2. Nyali ya Chingwe cha Sewero siiwala

(1) Onani ngati chingwe cha netiweki chili chotseguka;

(2) Onetsetsani ngati mtundu wa kulumikizana ukufanana: makadi a netiweki ndi ma rauta ndi zida zina zimagwiritsa ntchito zingwe zolumikizirana, ndipo ma switch, ma hubs ndi zida zina zimagwiritsa ntchito zingwe zolunjika;

(3) Onani ngati liwiro la kutumiza kwa chipangizocho likugwirizana.

3. Kutayika kwakukulu kwa paketi ya netiweki

(1) Chipata chamagetsi cha transceiver ndi mawonekedwe a chipangizo cha netiweki, kapena mawonekedwe a duplex a mawonekedwe a chipangizocho mbali zonse ziwiri sizikugwirizana;

(2) Pali vuto ndi chingwe chopindika ndi mutu wa RJ-45, choncho yang'anani;

(3) Vuto la kulumikizana kwa ulusi, kaya jumper ikugwirizana ndi mawonekedwe a chipangizocho, ngati pigtail ikugwirizana ndi jumper ndi mtundu wa coupler, ndi zina zotero;

(4) Kaya kutayika kwa chingwe cha ulusi wa kuwala kumaposa mphamvu yolandirira ya chipangizocho.

4. Pambuyo poti chosinthira cha fiber optic chalumikizidwa, malekezero awiriwo sangathe kulumikizana

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

(2) Chida cha RJ45 ndi chipangizo chakunja sizilumikizidwa bwino (samalani ndi kulumikiza molunjika ndi molunjika). Chida cha kuwala (ceramic ferrule) sichikugwirizana. Vutoli limawonekera makamaka mu transceiver ya 100M yokhala ndi ntchito yowongolera kuwala, monga APC ferrule. Mchira wa pigtail wolumikizidwa ku transceiver ya PC ferrule sudzalumikizana bwino, koma sudzakhudza transceiver yowongolera kuwala.

5. Yatsani ndi kuzimitsa chodabwitsa

(1). Mwina kuchepa kwa njira yowunikira ndi kwakukulu kwambiri. Pakadali pano, choyezera mphamvu yowunikira chingagwiritsidwe ntchito kuyeza mphamvu yowunikira ya mbali yolandirira. Ngati ili pafupi ndi mulingo wolandirira, imatha kuweruzidwa ngati kulephera kwa njira yowunikira mkati mwa mulingo wa 1-2dB;

(2). Mwina switch yolumikizidwa ku transceiver ndi yolakwika. Pakadali pano, sinthani switch ndi PC, kutanthauza kuti, ma transceiver awiri alumikizidwa mwachindunji ku PC, ndipo malekezero onse awiri ndi PING. Ngati sichikuwoneka, chingathe kuweruzidwa ngati switch. Cholakwika;

(3). Chosinthira mawu (transceiver) chikhoza kukhala ndi vuto. Pakadali pano, mutha kulumikiza malekezero onse awiri a chosinthira mawu (transceiver) ku PC (musadutse switch). Malekezero onse awiri akakhala opanda vuto ndi PING, tumizani fayilo yayikulu (100M) kapena kuposerapo kuchokera kumalekezero ena kupita kwina, ndikuwona liwiro lake, ngati liwiro lake ndi lochedwa kwambiri (mafayilo omwe ali pansi pa 200M akhoza kusamutsidwa kwa mphindi zoposa 15), kwenikweni ikhoza kuweruzidwa ngati kulephera kwa chosinthira mawu (transceiver).

6. Makina akagwa ndikuyambiranso, amabwerera mwakale

Chochitikachi nthawi zambiri chimachitika chifukwa cha switch. switch idzachita kuzindikira zolakwika za CRC ndi kutsimikizira kutalika kwa deta yonse yolandiridwa. Ngati cholakwikacho chapezeka, paketiyo idzatayidwa, ndipo paketi yolondola idzatumizidwa.

Komabe, mapaketi ena omwe ali ndi zolakwika mu njirayi sangathe kuzindikirika mu CRC error detection and length check. Mapaketi oterewa sadzatumizidwa kapena kutayidwa panthawi yotumizira. Adzasonkhana mu dynamic buffer. (Buffer), sangatumizidwe. Buffer ikadzala, idzapangitsa kuti switch igwe. Chifukwa panthawiyi kuyambitsanso transceiver kapena kuyambitsanso switch kungabwezeretse kulumikizana kukhala kwabwinobwino.