- los ntawm Admin / 29 Sep 22 /0Cov lus pom
Ethernet hloov pauv yog dab tsi thiab nws ua haujlwm li cas?
Nrog rau txoj kev loj hlob sai ntawm cov khoos phis tawj thiab lawv cov kev sib txuas thev naus laus zis (tseem hu ua "network technology"), Ethernet tau dhau los ua qhov luv luv ntawm ob-txheej khoos phis tawj network nrog qhov nkag siab tshaj plaws kom deb li deb. Qhov tseem ceeb ntawm Ethernet yog Ethernet hloov. Phau ntawv thiab ...Nyeem ntxiv
- los ntawm Admin / 28 Sep 22 /0Cov lus pom
VCSEL laser yog dab tsi?
VCSEL, uas yog hu ua Vertical Cavity Surface Emitting Laser tag nrho, yog ib hom semiconductor laser. Tam sim no, VCSEL feem ntau yog raws li GaAs semiconductors, thiab cov emission wavelength feem ntau yog nyob rau hauv infrared yoj band. Xyoo 1977, xibfwb Ika Kenichi ntawm Tokyo University of Technology fir ...Nyeem ntxiv
- los ntawm Admin / 27 Sep 22 /0Cov lus pom
Network Classification ntawm PAN, LAN, MAN thiab WAN
Lub network tuaj yeem faib ua LAN, LAN, MAN, thiab WAN. Cov ntsiab lus tshwj xeeb ntawm cov npe no tau piav qhia thiab muab piv rau hauv qab no. (1) Personal Area Network (PAN) Cov tes hauj lwm zoo li no tuaj yeem ua kom muaj kev sib txuas lus luv luv ntawm cov khoom siv nqa tau thiab cov khoom siv sib txuas lus, Cov ...Nyeem ntxiv
- los ntawm Admin / 26 Sep 22 /0Cov lus pom
Dab tsi yog Qhov Tau Txais Kev Pom Zoo Tshaj Tawm (RSSI) kom meej
RSSI yog cov ntawv luv ntawm Txais Cov Lus Qhia Lub Zog. Qhov tau txais cov cim lub zog yog xam los ntawm kev sib piv ob qhov tseem ceeb; uas yog, nws tuaj yeem siv los txiav txim siab npaum li cas muaj zog lossis qaug zog lub teeb liab lub zog piv nrog lwm lub teeb liab. Tus lej lej ntawm RSSI ...Nyeem ntxiv
- los ntawm Admin / 25 Sep 22 /0Cov lus pom
Basic Technical Principles ntawm MIMO
Txij li thaum 802.11n, MIMO thev naus laus zis tau siv hauv cov txheej txheem no thiab tau txhim kho qhov sib kis tau zoo dua. Tshwj xeeb, yuav ua li cas kom tau txais kev txhim kho technology siab. Tam sim no cia peb saib ze dua ntawm MIMO thev naus laus zis. Nrog kev nce qib ntawm kev sib txuas lus wireless technology, mor ...Nyeem ntxiv
- los ntawm Admin / 23 Sep 22 /0Cov lus pom
Classification ntawm Switches
Muaj ntau hom kev hloov pauv ntawm kev ua lag luam, tab sis kuj tseem muaj qhov sib txawv ntawm kev ua haujlwm, thiab cov yam ntxwv tseem ceeb sib txawv. Nws tuaj yeem muab faib raws li qhov dav dav thiab qhov ntsuas ntawm daim ntawv thov: 1) Ua ntej ntawm tag nrho cov, nyob rau hauv ib tug dav kev txiav txim siab, network keyboards yuav muab faib ua ob pawg ...Nyeem ntxiv
