Kawirikawiri, mphamvu yowala ya optical fiber transceiver kapena optical module ili motere: multimode ili pakati pa 10db ndi -18db;single mode ndi 20km pakati -8db ndi -15db;ndi mode limodzi ndi 60km ali pakati -5db ndi -12db pakati.Koma ngati mphamvu yowala ya fiber optic transceiver ikuwoneka pakati pa -30db ndi -45db, ndiye kuti ndizotheka kuti transceiver ya fiber optic iyi ili ndi vuto.
Kodi mungaweruze bwanji ngati pali vuto ndi fiber optic transceiver?
(1) Choyamba, onani ngati kuwala kwa chizindikiro cha transceiver optical fiber kapena optical module ndi chizindikiro cha doko lopotoka.
a.Ngati chizindikiro cha FX cha transceiver chazimitsidwa, chonde tsimikizirani ngati ulalo wa fiber ndi wolumikizana?Mapeto amodzi a fiber jumper amalumikizidwa mofanana;mapeto enawo alumikizidwa munjira yodutsa.
b.Ngati chizindikiro cha mawonekedwe (FX) cha transceiver A chiyatsidwa ndipo chizindikiro cha kuwala (FX) cha B transceiver chazimitsidwa, vuto liri kumbali ya A transceiver: kuthekera kumodzi ndi: Transceiver (TX) transceiver optical transmission. doko ndiloipa chifukwa doko la kuwala (RX) la B transceiver sililandira chizindikiro cha kuwala;Kuthekera kwina ndi: pali vuto ndi ulalo wa ulusi uwu wa doko la transceiver la A transceiver (TX) (chingwe chowonekera kapena chodumphira chowonekera chikhoza kusweka).
c.Chizindikiro chopindika (TP) chazimitsa.Chonde onetsetsani kuti kulumikizana kokhotakhota ndikolakwika kapena kulumikizidwa kolakwika?Chonde gwiritsani ntchito tester tester kuyesa (komabe, nyali zopindika za ma transceivers ena ziyenera kudikirira mpaka ulalo wa fiber utalumikizidwa).
d.Ma transceivers ena ali ndi ma doko awiri a RJ45: (ToHUB) akuwonetsa kuti mzere wolumikizira ku switch ndi mzere wowongoka;(ToNode) ikuwonetsa kuti mzere wolumikizira ku switch ndi mzere wodutsa.
e.Zina zowonjezera tsitsi zimakhala ndi kusintha kwa MPR kumbali: zikutanthauza kuti mzere wogwirizanitsa ndi kusinthana ndi mzere wowongoka;Kusintha kwa DTE: chingwe cholumikizira ku switch ndi njira yodutsa.
(2) Kaya chingwe cholumikizira ndi chodumphira chathyoka
a.Kulumikizana kwa chingwe cha Optical ndi kuzindikira kuchotsedwa: gwiritsani ntchito tochi ya laser, kuwala kwa dzuwa, thupi lowala kuti muwunikire mbali imodzi ya cholumikizira chingwe cholumikizira kapena cholumikizira;muwone ngati pali kuwala kowoneka kumapeto kwina?Ngati pali kuwala kowonekera, zimasonyeza kuti chingwe cha kuwala sichinaswe.
b.Kuzindikira kwapang'onopang'ono kwa kugwirizana kwa fiber fiber: gwiritsani ntchito tochi ya laser, kuwala kwa dzuwa, ndi zina zotero kuti muwunikire mbali imodzi ya fiber jumper;muwone ngati pali kuwala kowoneka kumbali inayo?Ngati pali kuwala kowoneka, fiber jumper sidasweka.
(3) Kaya theka/full duplex mode ndi yolakwika
Ma transceivers ena ali ndi masiwichi a FDX kumbali: duplex yodzaza;Kusintha kwa HDX: theka la duplex.
(4) Yesani ndi mita yamagetsi yamagetsi
Mphamvu yowala ya optical fiber transceiver kapena optical module pansi pazikhalidwe zachilendo: multi-mode: pakati -10db ndi -18db;single-mode 20 makilomita: pakati -8db ndi -15db;single-mode 60 makilomita: pakati -5db ndi -12db;Ngati mphamvu yowala ya fiber optic transceiver ili pakati pa -30db-45db, ndiye kuti ikhoza kuweruzidwa kuti pali vuto ndi transceiver ya fiber optic iyi.