Thaj Qaum - yog dab tsi? Yuav ua li cas hom ntawm thaj cords?

Thaj cords (thaj cords) yog hu ua hluav taws xob los yog fiber optic cables, uas tso cai rau mus cuag los yog txuas hluav taws xob pab kiag li lawm. Cov feem ntau lug siv cov ntaub ntawv khoom tau txais nyob rau hauv lub tsim thiab creation ntawm cheeb tsam hauj lwm. Rau tebchaw ntawm keyboards txuas workstation mus rau lub network khoom no feem ntau yog siv thaj qaum 5e, manufactured los ntawm muaj los yog handicraft txoj kev. Hoob no fiber optic thaj cords.

Thaj Qaum - yog dab tsi? Yuav ua li cas yog nws ua hauj lwm?

Yuav kom txuas lub disparate network Cheebtsam, koj yuav tau siv tshwj xeeb cables. Yog li ntawd, mus cuag ib tug PC mus rau ib tug DSL router los yog hloov koj xav tau los npaj ib tug network thaj cable. Yuav ua li cas yog nws? Nws yog ib tug ya ntawm ib tug shielded los yog unshielded UTP cable ntev ntawm 1.5 m, nyob rau ob sab ntawm uas yog ruaj los txhais tau tias ntawm ib tug crimping cuab tam RJ-45 connectors. Koj muaj peev xwm siv tau cov no cables mus cuag txhua yam ntawm lub network ib puag ncig. Tsuav txhob yog cov pab kiag li lawm uas txhawb tsuas yog tus fiber interfaces. Ib txhia LAN keyboards tseem pom li khiav hauj lwm tshaj coaxial cable. Los ntawm tam sim no lawv muaj yuav luag zoo.

Standard tia-568A thiab tia-568B

Muaj cov qauv mus cuag xws cables mus rau lwm cov pab kiag li lawm: tia-568A thiab tia-568B. Yuav ua li cas, ces, yog siv 5e thaj qaum rau txuas network pab kiag li lawm? Cov qauv txhais qhov kev txiav txim ntawm tus neeg nyob ntawm tej tsis pub dhau lub connector los ntawm cov xim. Qhov tseeb hais tias nyob rau hauv lub txheem UTP cable los ntawm ib tug rwb thaiv tsev txheej strands yog cov conductors. Qhov ntawd yog nyob rau lawv thiab lub teeb liab yog kis tau. rwb thaiv tsev txheej vov ib neeg xyuas pib, tej zaum yuav muaj ib tug ntawm yim standard xim:

• txiv kab ntxwv;
• dawb-txiv kab ntxwv;
• ntsuab;
• dawb-ntsuab;
• xiav;
• dawb thiab xiav;
• xim av;
• dawb thiab xim av.

Tus txheem tia-568A kev txiav txim ntawm reference pib nrog dawb thiab ntsuab, thiab ntsuab nyob ntawm tej. Nyob rau hauv ib tug embodiment, tia-568B thawj mus txiv kab ntxwv nyob ntawm tej. Lwm yam sib txawv nyob rau hauv qhov kev txiav txim ntawm cov neeg ciaj thiaj yuav pom nyob hauv daim duab. Ib txhia network engineers thaum txuas connectors arbitrarily hloov qhov kev txiav txim ntawm lub neej. Qhov no yog tsis pom zoo. Zoo ua raws li ib tug ntawm tus txheej txheem schemes, kom tsis txhob tsis meej pem nyob rau hauv lub neej yav tom ntej.

Qhov ntawd yuav txuas ib thaj cable?

Crimped rau ob tog ntawm lub cable yog indispensable rau lub system administrator. Muaj ntau ntau pab kiag li lawm uas yuav tau kev cob cog rua rau lub network siv ib thaj cable. Yuav ua li cas yog no ntaus ntawv? Daim ntawv yog heev kim heev. Ntawm no tsuas yog qhov nrov tshaj plaws kev xaiv:

• kab thaj vaj huam sib luag rau ib tug PC los yog laptop;
• computer mus rau lub DSL modem;
• Hloov mus rau ib tug router los yog ib tug mus rau lwm tus;
• computer mus rau lub hub;
• DSL modem mus rau lub routing ntaus ntawv los yog hloov;
• wireless nkag taw tes rau ib tug mus nrog Poe technology, los yog tsis muaj nws.

Yog hais tias siv LC LC thaj qaum, lawv feem ntau yog txuam switching ntaus ntawv thiab cov routing nruab nrab ntawm lawv. Qhov no hom ntawm cable kuj yog siv rau txuas keyboards thiab lwm yam network khoom mus rau thaj vaj huam sib luag.

Yuav ua li cas yog cov kev hloov kho ntawm thaj cords

Dua li ntawm qhov simplicity ntawm tus dais, lub thaj cables muaj tej yam sib txawv. Piv txwv li, tej zaum lawv yuav muaj feem rau hauv qeb 5, 5e, los yog 6. Tus naj npawb qhia txog ntaub ntawv yog siv rau lub cable, lub hom RJ-45 connectors siv ib qho kev thaj qaum UTP. Qhov no txhais tau hais tias nyob rau hauv kev xyaum? Ntau UTP cables txhawb txawv cov ntaub ntawv hloov lwm lub tsev ceev. Ib txhia ntawm lawv muaj peev xwm muab ib tug ntau dua ntau yam ntawm lub teeb liab kis tau tus mob. MIV 6 cable muaj ntxiv tiv thaiv, tsis pub collisions nyob rau hauv lub network vim hluav taws xob nrov nrov, thiab lwm yam. Nws yog ntawv pov thawj rau kev siv nyob rau hauv Gigabit Ethernet tes hauj lwm. Lub ntsiab yog vim li cas yog vim li cas ib tug 6-th qeb tsis tau txais ntau tis, yog tus nqi siab. Thiab feem ntau ntawm cov network cov teeb meem tej zaum yuav zoo yuav daws tau los ntawm txoj kev ib tug cable MIV 5 los yog MIV 5e.

Gigabit Ethernet them nyiaj yug, qhov teeb meem ntawm zoo ntawm UTP cables

Muaj yog ib qho misconception ntawm buyers, uas yog hais tias lawv yuav tsum muaj cable MIV 6, Gigabit tau ib lub teeb liab nyob rau hauv koj network. Qhov no daim ntawv qhia no siv tau yog hais tias yuav pheej yig hlau dubious keeb kwm. zoo zoo Qeb 5e cable, manufactured mus rau cov qauv, yuav muaj ib tug Gigabit teeb liab. Nws tsuas drawback yog tias nws twb tsis tsim los yog ntawv pov thawj rau qhov no. Yog li ntawd, yog tsis muaj guarantee tias cov CAT5 cable yuav txhawb Gigabit Ethernet. Nyob rau hauv kev, ib tug ntawm lub ntsiab ntsiab ntawm tej niaj hnub lub computer network yog ib thaj qaum. Qhov no txhais tau hais tias nyob rau hauv kev xyaum? Qhov tseeb hais tias qhov zoo tshaj ntawm cov khoom no yuav nyob ntawm seb lom zem ntau rau ruaj khov lag luam ntawm lub network. Piv txwv li, lub zog tiv thaiv tawm tsam hluav taws xob cuam tshuam yuav ua rau ib tug loj tus naj npawb ntawm raug thiab yuav txo tau ntawm cov ntaub ntawv tus nqi. Qhov no yuav tsis tau tso cai. Koj yuav tsum ua tib zoo saib xyuas qhov zoo ntawm UTP cables uas yog siv nyob rau hauv lub zos network.

Muaj siv txawv ntawm thaj cords 5 thiab 6 pawg

Massively siv mas cables UTP Qeb 5. Lawv yog cov pheej yig, yooj yim thiab txhim khu kev qha. Yog hais tias cov khoom no yog zoo ua, lawv yog, txawm tsis muaj cov teeb meem yuav pab tau kom Gigabit teeb liab. Tab sis tej zaum koj yuav nrhiav tau thiab thaj cords Qeb 6 (kwv yees li 3-5% ntawm cov neeg). Yuav ua li cas yog lub ntsiab sib txawv yog 5e thaj cable? Yuav ua li cas yog no tej yam yees siv hlau siv qhov txhia chaw? Cov khoom no - ib tug pa cable ya "twisted khub", nyob rau hauv txhua thaum xaus ntawm uas muaj ib tug RJ-45 connector. Nrog nws, cov hlau yog tso rau hauv cov coj connector mus los network computer motherboard. Cov ntaub ntawv yog kis tau nyob rau hauv lub zaus ntau txog li 100 MHz. Tej thaj cords pom zoo rau kev siv nyob rau hauv kev cabling system (SCS). Yog li ntawd ncav hu ua zos computer tes hauj lwm. Twisted khub qeb 5 thiab 5e muaj tsis muaj ntxiv khaubncaws sab nraud povtseg kev pab tiv thaiv, yog li nws yuav tsuas yuav ua nyob rau hauv kaw chav.

Yuav ua li cas secrets tseem harbours ib txwm thaj qaum? Yuav ua li cas yog cov yam ntxwv uas ua rau cov khoom thiaj li ntau yam lub cuab tam rau lub tsev computer tes hauj lwm? Sab nrauv rwb thaiv tsev txheej tiv thaiv ib leeg-hlau tooj liab conductors, cov officers thiab muaj ib lub cheeb ntawm 0,52 hli. Txhua neeg xyuas pib yog them nrog khoom polyethylene. Nws tiv thaiv cov nyob ntawm tej los ntawm ntau yam cuam tshuam thiab ingress ntawm dej oxidation. UTP cable yog ib co saj zawg zog, uas koj yuav siv ntau tshaj plaws npaj txhij txog kev rau lawv network.

Lub txawv tus ntoo khaub lig-Thaj Qaum

Fais fab cables ntawm lub "crossover" yog ib tug tshwj xeeb ntawm pigtails, uas yog siv rau cov Ras ntaus ntawv. Lawv peculiarity - Cross Circuit Court sib txuas rau ib tug neeg nyob ntawm tej ncaj qha mus rau thaum xaus connector. Yog li ntawd, yog tias nyob rau hauv ib tes cov qauv siv tia-568A, ces lwm muaj ntaub ntawv tia-568B Circuit Court. Yog vim li cas kuv yuav tsum tau siv tus ntoo khaub lig-thaj qaum? Yuav ua li cas muab? Saum toj no xws cables siv los txuas computers rau txhua lwm yam. Niaj hnub no, qhov kev txiav txim yog kev lom zem ntau tawm ntawm hnub. Muaj yog tsis muaj yuav tsum tau mus cuag ib tug neeg PCs siv nws motocross xaiv tsis muaj switching khoom. Niaj hnub nimno network interface phaib tau kawm los mus txiav txim uas nyob ntawm tej yog siv mus rau kis Pib ntsais koj teeb, thiab rau ib txhia yog ib tug txais tos. Yog li ntawd qhov teeb meem, uas yuav tsum daws kom tau no network khoom yuav tsum nqa tawm Attendance zoo nrog txhua yam ntawm cable.