Yuav xaiv cov Ethernet cable li cas
Ethernet cables tuaj txhua qhov sib txawv thiab ntau thiab tsawg. Nov yog yam koj yuav tsum paub
Txhua Ethernet cables ua rau tib qho laj thawj - los txuas cov cuab yeej txuas rau tes hauj lwm, zoo li is taws nem. Tsis yog txhua txhua Ethernet cables yuav zoo ib yam nkaus, txawm li cas los xij. Yog tias koj tau pom koj tus kheej xav tau Ethernet cable tsis muaj lub tswv yim twg koj yuav tsum xaiv, koj tsis yog ib leeg. Ethernet tsim, zoo li ntau yam hauv cov qauv sib txuas niaj hnub, tuaj yeem nyuaj rau kev txhais thiab nkag siab. Hmoov zoo, koj tuaj qhov chaw zoo. Kav tsij nyeem ntxiv kom xyuas seb txoj xov twg yog txoj zoo rau koj thiab koj qhov xwm txheej.
Thaum koj tau txiav txim siab seb txoj hlua cable twg koj xav tau, ntawm no yog peb xaiv qhov zoo tshaj plaws Ethernet cables koj tuaj yeem yuav.
Koj yuav xaiv li cas?
Qhov yooj yim tshaj plaws los xaiv lub cable yog xaiv qhov ib nrog ntau thiab qhov ua rau koj xav tau. Tab sis dab tsi koj xav tau?
Pib nrog kev nrawm ntawm koj qhov txuas internet hauv tsev. Yog tias koj muaj gigabit internet, ib qho qub Ethernet cable yuav tuav koj rov qab. Tab sis yog tias koj muaj qhov txuas qeeb dua, hais 10 lossis 20 megabits ib ob, koj zoo nrog txhua yam Cat 5 lossis siab dua.
Tom ntej no, xav txog qhov nrawm uas koj xav tau rau koj lub network. Qhov no yog hais ncaj rau cov neeg siv tsev feem ntau. Tab sis yog tias koj tshem cov ntaub ntawv loj ntawm cov koos pij tawj tsis tu ncua, lossis koj tso tawm cov vev xaib loj kawg, cov Ethernet cable zoo tuaj yeem ua qhov sib txawv.
Thaum kawg, xav txog koj tus router. Qee qhov pheej yig routers tsuas txhawb Ethernet txog 100 megabits ib ob, yog li nws yuav bottleneck txhua yam tshiab dua li Cat 5. Txawm tias qhov zoo tshaj plaws hauv tsev routers tsis tshua txhawb ntau dua gigabit Ethernet, yog li Cat 6a thiab Cat 7 yog qhov siv.
Nrog txhua qhov saum toj no yuav tsum xav txog, Cat 6 cable yog qhov uas koj yuav xav tau tshaj plaws. Yuav luag txhua lub tsev tuaj yeem mus tau nrog Cat 5e, txawm li cas los xij.
Ethernet cov lus qhia
Qhov sib txawv ntawm ntau hom ntawm Ethernet cables yog qhov yooj yim zoo nkauj, tab sis nws yooj yim kom tsis meej pem los ntawm qee qhov ntawm lub npe. Txhawm rau pab tawm, peb tau tso ua ke maj nrawm rau ntawm cov ntsiab lus sib txawv txhais tau li cas, thiab dab tsi koj yuav tsum tau txais yog tias koj yuav ib lub cable nrog cov qauv no.
Miv : Sawv rau “qeb.”
TP : Twisted Pairs. Cov ntsiab lus no yog hais txog txoj kev uas xaim xov hlau sab hauv muaj qhov sib txuam ua ke. Twisted Pairs tau yog tus qauv kev lag luam rau xyoo, thiab tsuas yog qis dua mus rau fiber ntau-optic cabling nyob rau hauv cov ntsiab lus ntawm qhov ntev tshaj plaws thiab kev ua kom zoo tshaj tawm.
UTP : Cov Khoom Siv Uas Tsis Raug Khaws Tseg Sib Tw. Cables tsim UTP yuav tsis muaj cov ntawv ci lossis cov braided tiv thaiv, uas ua rau lub xov tooj pheej yig dua los tsim thiab ntau yoog raws, tab sis koj yuav txi cov teeb liab zoo thiab ua kom muaj kev cuam tshuam rau cov khoom hla.
STP : Shielded Twisted Pairs. Cov kab txuas nrog STP lossis SSTP kev tiv thaiv muaj kev tiv thaiv nrog kev tiv thaiv braided, uas feem ntau yog ua los ntawm tooj liab lossis lwm cov ntaub ntawv conductive polymer. Shielding txo cov suab nrov thiab txhim kho kev sib txuas zoo.
FTP : Foiled Twisted Pairs. Cov kab ke nrog FTP lossis SFTP tsim muaj kev tiv thaiv nrog cov ntawv ci, uas pab txo cov suab nrov thiab txhim kho kev sib txuas zoo.
Dab tsi yog 'Miv' txhais tau?
Yog tias koj tau tshawb nrhiav cov ntawv txuas hluav taws xob nyob online, koj yuav pom tias lawv yuav luag tau txheeb tias yog “Cat-5,” “Cat6e,” lossis tej yam zoo sib xws. "Miv" tsuas yog sawv cev rau "Qeb," thiab tus lej uas hauv qab no qhia tias qhov tshwj xeeb uas tus xov tooj raug tsim tawm. Ib qho kev cai dav dav ntawm tus ntiv tes xoo yog tias cov lej ntau dua sawv cev rau nrawm nrawm dua thiab ntau dua zaus, ntsuas hauv Mhz. Raws li qhov teeb meem nrog feem ntau cov thev naus laus zis, cov xov tooj hluav taws xob tshiab yuav txhawb nqa cov kab hluav taws xob ntau dua, thiab yog li ntawd nce rub tawm kom ceev dua thiab kev sib txuas ceev dua.
Nco ntsoov tias ntev dua Ethernet cables yuav ua rau muaj kev sib kis qeeb qeeb, txawm tias cov xaim siv hluav taws xob yuav rau kev siv tus kheej tsis tshua dhau 100 meters; thiab yog li ntawd tsis zoo li yuav muaj kev cuam tshuam ntau nrawm dua.
Hauv qab no, koj tuaj yeem pom dab tsi ntawm txhua hom cable muaj peev xwm.
Qeb | Tiv thaiv | Kev xa xov ceev ceev (ntawm 100 metres) | Max Bandwidth |
Miv 3 | Tsis Siv Dab | 10 Mbps | 16 MHz |
Miv 5 | Tsis Siv Dab | 10/100 Mbps | 100 MHz |
Miv 5e | Tsis Siv Dab | 1,000 Mbps / 1 Gbps | 100 MHz |
Miv 6 | Shield los yog Tsis Siv Dab | 1,000 Mbps / 1 Gbps | 250 MHz |
Miv 6a | Tiv thaiv | 10,000 Mbps / 10 Gbps | 500 MHz |
Miv 7 | Tiv thaiv | 10,000 Mbps / 10 Gbps | 600 MHz |
Miv 7a | Tiv thaiv | 10,000 Mbps / 10 Gbps | 1,000Mhz |
Miv3 thiab miv 5
Ob lub Miv 3 thiab Miv 5 Ethernet cables yog, thaum lub sijhawm no, obsolete. Nws tsis yog qhov tsis tau pom kom pom Cat 5 cov xov tooj tseem nyob hauv kev siv, tab sis koj yuav tsum tsis txhob xav txog sim sim yuav ntawm cov Ethernet cables no. Lawv qeeb, thiab tsis muaj leej twg ua rau lawv txuas ntxiv.
Miv 5e
Qhov "e" hauv Cat 5e sawv rau "kho kom zoo dua." Tsis muaj lub cev sib txawv ntawm Cat 5 thiab Cat 5e cables, tab sis 5e Ethernet tau tsim nyob rau hauv cov qauv kev ntsuas nruj dua kom tshem tawm cov kis chaw - piv txwv li, qhov tsis xav hloov ntawm cov teeb liab sib txuas lus sib txuas lus Cov. Cat 5e tam sim no feem ntau siv ntau hom Ethernet cable, feem ntau vim nws tsis tshua muaj nqi thiab muaj peev xwm txhawb nqa cov nrawm nrawm dua li tus thawj Cat 5 cables.
Miv 6
Cat 6 cables txhawb ntau ntau cov bandwidth ntau dua li Cat 5 thiab Cat 5e cables, tab sis lawv kuj tseem kim dua. Miv 6 kab txuas ntau mob ntau dua li lawv cov neeg ua yav dhau los, thiab feem ntau tau hnav tsho tiv thaiv nrog cov ntawv ci lossis tawv tawv tiv thaiv. Qhov thaiv no tiv thaiv cov xov ntawm cov xov hlau hauv lub Ethernet cable, pab tiv thaiv kev cuam tshuam thiab suab nrov cuam tshuam. Miv 6 cable muaj peev xwm ua rau txhawb kev nrawm txog 10 Gbps, tab sis tsuas yog tuaj yeem ua li ntawd mus txog 55 meters.
Miv 6a
Qhov "a" hauv Cat 6a sawv rau "augmented." Sib piv nrog cov Cat 6 txuas nrog, 6a cables txhawb nqa ob zaug qhov ntau tshaj, thiab muaj peev xwm tswj tau qhov hluav taws xob ntau dua cov xov tooj ntev dua. Cat 6a cables ib txwm muaj kev tiv thaiv, thiab lawv cov sheathing - uas yog tuab txaus kom tshem tawm cov hla kev ua tiav - ua rau kom muaj ntau dua denser, tsis hloov pauv cable dua Cat 6.
Miv 7
Cat 7 cables siv txoj kev siv cov tshuab Ethernet tshiab tshaj plaws, thiab txhawb cov bandwidth ntau dua thiab cuam tshuam cov xov nrawm nrawm dua Cat 6 cables. Lawv tau tsim kev ncaj ncees ntau dua li lwm cov hlua ntawm Ethernet, txawm hais tias lawv cov kev ua tau zoo li lawv cov nqi them tus nqi. Miv 7 cab hluav taws xob muaj peev xwm ncav cuag txog 100 Gbps ntawm qhov ntau ntawm 15 meters, ua rau lawv xaiv zoo rau kev sib txuas cov qauv txiav lossis cov routers ncaj qha rau koj cov khoom siv. Miv 7 cov xaim hluav taws xob ib txwm muaj kev tiv thaiv, thiab siv hloov kho GigaGate45 qhov txuas, uas yog rov qab tau sib txuas nrog Ethernet ports tsis tu ncua.
Miv 7a
Txawm hais tias tsis muaj dav thiab nrog ob peb pab txhawb kev sib koom kho vajtse kev xaiv, Cat 7a tam sim no muaj qhov siab tshaj qhov tseem ceeb Ethernet cables koj tuaj yeem yuav. Txawm hais tias qhov kis tau tus mob tsis txawv dua li ntawm Cat 7, Cat 7a cables muaj qhov ntau dua 50 feem pua txhim kho hauv bandwidth tag nrho, uas nyob hauv qee qhov chaw yuav pab tau zoo. Lawv tseem kim tshaj li lwm cov kev xaiv tab sis yog li, thiab yog li lawv yuav tsum tsuas yog tau txiav txim siab hauv qee qhov xwm txheej tshwj xeeb.
Miv 8 Nawb
Cat 8 cov hlua hluav taws xob tseem tsis tau muaj dav dav tab sis yuav dhau los ua xyoo 2019. Peb tuaj yeem cia siab tias lawv yuav ntaus lub lag luam nrog cov nrawm nrawm nrawm dua thiab ntau dua cov bandwidth ntau dua li Cat 7a cables.
