Lub Usability Ntawm Ntau Yam Network Patch Cables
Ib lub xov tooj network uas muaj kab ntau tshaj plaws muaj yim xaum uas muaj plaub leeg sib tw. Hauv txhua sab, lub cable nta RJ45 connectors, piv txwv li Enhanced Category5 (CAT5e) thaj cable. Nws yog siv rau kev sib txuas nrog lossis ntawm cov khoom siv network thiab daim ntaub ntawv. Qhov kev sib txuas lus Ethernet no yog siv rau kev sib txuas nrog cov computers xws li routers, hubs lossis keyboards.
Txawm li cas los, kom deb li deb ntawm lub cable CAT5e thaj yog txhawj xeeb, nws yog siv rau hauv Ethernet kev txuas qhov twg yog qhov yuav tsum koom ib lub hauv paus ntawm kev siv cov kev lag luam kom muaj kev sib raug zoo. Nyob rau hauv qhov tseeb, no cable txhawb kev txuas rau qee qhov kev sib txuas lus ntawm kev sib txuas lus piv txwv ntawm ATM. Cov ntaub ntawv muaj kev sib kis ceev ceev yog nws tus USP nws muaj raws li cov kev cai tswj hwm ntawm feem ntau los ntawm Ethernet tej kev kawm.
Ib lub hauv paus tseem ceeb rau kev siv tau ntawm qhov kho kom zoo ntawm CAT5 cable yog nws muaj kev ncaj ncees ntev 100 meter uas txaus rau cabling hauv cheeb tsam me me thiab nruab nrab ntawm Ethernet. Txawm nyob rau xyoo tas los no, CAT6 thiab CAT6e thaj xov tooj tau tsim los muab cov sijhawm khiav ntawm 550 metres thiab 1000 tauj meters, cov khoom no tsis sib xws nrog feem ntau ntawm cov khoom siv network uas siv cov kev siv network ntau. Cov no yog cov neeg muag khoom tshwj xeeb thiab koj kuj yuav tsum nruab yog cov khoom kho mob thiab cov khoom software uas zoo rau lawv. Qhov kev tsis txaus siab ntawm cov qeb kawg no tau muaj kev cuam tshuam xws li kev siv thoob plaws ntawm CAT5e thaj xov tooj uas yog universally txais.
Ntxiv mus, CAT5e thaj cables yog muaj nyob rau hauv ob qho tib si unshielded twisted (UTP) thiab shielded twisted khub (STP) configurations. Txawm tias nws yeej muaj tseeb UTP thaj cov cables yog comparatively ntau heev, qee cov kev siv network ua kom lub STP vim hais tias tom qab pab tiv thaiv kom tsis txhob muaj teeb meem coj los ntawm Electro-Magnetic Interference (EMI).
Network cab kuj yog pom nyob rau hauv cov khoom tso zis thiab khoom ntau dhau. Ua ntej dhau los, cov kab uas muaj cov hlua tuaj yeem ua ib pawg ntawm nyias lub tsho hlau, thaum lub kaum xov hauv lub hau khwb yog cov qauv tooj liab tom qab. Txawm li cas los xij, ob qho tib si hauv cov pawg no, cov xov hlau tau sib txuas los ua plaub khub. Dua li ntawm qhov tseeb tias txhua tus ntawm lawv muaj kev sib txuas nrog hauv Internet, cov kab txuas uas khij nyiab muaj qhov kev siv ntau dua vim nws txoj kev cuam tshuam thiab kev ua suab nrov. Cov kab txaij ntau hom yog qhov zoo dua rau cov khoom tsim los ntawm nws vim nws muaj tsawg dua qhov muaj kev pheej hmoo nyob rau hauv tus txheej txheem ntawm unplugging.
Crossover cable kuj ua haujlwm li Ethernet thaj ua haujlwm thiab txuas tau ob lub PC ua ke. Thaum muaj ib qho kev sib txuas ntawm lub tshuab fais fab ntawm lub network muaj nyob rau hauv kiab khw, koj yuav tau nrog ib tug engine engineer paub uas yuav nplua koj cov Ethernet network tshaj plaws.
Txawm li cas los xij, apart from tus qauv plaub-kab ib thaj, cov engineers kuj opt rau lub tshuab fiber optic . Txawm hais tias lub chaw ua hauj lwm CAT5e network twb tsis tau raug nug lawm, cov khoom siv fiber ntau yog siv ntau heev. Qhov ntau yam ntawm lub nplaim cable yog tsim los ntawm fiber ntau cov khoom siv thiab cov connectors ntawm ob lub hnub sib txawv kuj muaj nyob rau hauv fiber ntau optic.