Cov keyboards muaj kuj yog hu ua industrial Ethernet keyboards, uas yog Ethernet hloov khoom siv nyob rau hauv kev lag luam tswj, vim hais tias ntawm tus qauv siv network, nws txoj kev qhib, daim ntawv thov dav, tus nqi qis, thiab pob tshab thiab sib koom ua ke TCP / IP raws tu qauv, Ethernet tau dhau los ua tus qauv kev sib txuas lus tseem ceeb hauv kev tswj hwm kev lag luam. Cov keyboards muaj peev xwm ua tau zoo hauv chav ua haujlwm thiab tuaj yeem tiv taus qhov chaw ua haujlwm hnyav. Cov khoom lag luam nplua nuj thiab hloov pauv chaw nres nkoj tuaj yeem ua tau raws li qhov xav tau ntawm ntau yam kev lag luam. Cov khoom siv dav dav tsim qauv, kev tiv thaiv qib tsis qis dua IP30, thiab txhawb nqa cov txheej txheem thiab cov nplhaib ntiag tug network redundancy raws tu qauv. 4G routers tau siv dav hauv kev lag luam xws li nyiaj txiag, kev thauj mus los, kev saib xyuas, kev txuag dej, kev tiv thaiv ib puag ncig, hluav taws xob hluav taws xob, kev pabcuam xa ntawv, huab cua, mobile Internet ntawm Yam, thiab kev sib tham hauv Internet ntawm Yam. Yog li, dab tsi yog qhov txawv ntawm kev hloov pauv thiab kev lag luam 4G routers? Cia wb mus saib ua ke!

Cov keyboards muaj qhov txawv ntawm kev lag luam 4G routers hauv cov ntsiab lus hauv qab no:

(1) Cov qib ua haujlwm sib txawv

Thawj qhov kev hloov pauv tau ua haujlwm ntawm cov ntaub ntawv txuas txheej (txheej 2) ntawm OSI / RM qhib architecture, thiab kev lag luam 4G router tau tsim los ua haujlwm ntawm txheej txheej network ntawm OSI qauv. Txij li thaum hloov pauv kev lag luam ua haujlwm ntawm txheej thib ob (cov ntaub ntawv txuas txheej) ntawm OSI, nws txoj haujlwm ua haujlwm yog qhov yooj yim. Tab sis kev lag luam 4G routers ua haujlwm ntawm txheej thib peb (txheej txheej network) ntawm OSI, uas tuaj yeem tau txais cov ntaub ntawv ntau ntxiv, thiab cov 4G routers muaj peev xwm txiav txim siab xa mus rau qhov ntse dua.

(2) Cov ntaub ntawv xa mus yog raws li cov khoom sib txawv

Cov keyboards muaj siv lub cev chaw nyob lossis MAC chaw nyob los txiav txim qhov chaw nyob rau kev xa tawm cov ntaub ntawv. Muaj 4G routers siv tus lej ID (xws li IP chaw nyob) ntawm cov tes hauj lwm sib txawv los txiav txim qhov chaw nyob rau cov ntaub ntawv xa mus. IP chaw nyob yog siv rau hauv software thiab piav qhia txog lub network uas lub cuab yeej nyob. Qee zaum cov chaw nyob thib peb no tseem hu ua chaw nyob raws tu qauv lossis chaw nyob hauv network. Qhov chaw nyob MAC feem ntau yog tsim los ntawm cov khoom siv kho vajtse, muab los ntawm cov chaw tsim khoom network card, thiab tau ua kom ruaj khov rau hauv daim npav network, thiab feem ntau tsis tuaj yeem hloov pauv. Qhov chaw nyob IP feem ntau yog muab los ntawm tus thawj tswj hwm network lossis qhov system.

(3) Kev hloov pauv ib txwm muaj tuaj yeem faib cov kev tsis sib haum xeeb, tsis yog qhov tshaj tawm xov xwm; thaum lub tuam txhab muaj 4G router tuaj yeem faib cov ntawv tshaj tawm. Cov ntu txuas txuas nrog los ntawm kev hloov pauv kev lag luam tseem nyob rau tib qhov kev tshaj tawm xov xwm, thiab cov ntaub ntawv tshaj tawm xov xwm yuav raug xa mus rau txhua ntu kev sib txuas ntawm kev lag luam, uas yuav ua rau muaj kev sib txuas lus txhawb nqa thiab kev ruaj ntseg hauv qee kis. Cov ntu txuas txuas nrog rau kev lag luam 4G router yuav raug xa mus rau cov chaw tshaj tawm sib txawv, thiab cov ntaub ntawv tshaj tawm yuav tsis dhau los ntawm kev lag luam 4G router.

Txawm hais tias cov kev lag luam hloov pauv saum toj kawg nkaus txheej thib peb muaj VLAN ua haujlwm, qhov tshaj tawm xov xwm tseem tuaj yeem muab faib, tab sis kev sib txuas lus ntawm sub-broadcast domains tsis tuaj yeem sib txuas lus, thiab kev sib txuas lus ntawm lawv tseem xav tau kev lag luam 4G router.

(4) Kev lag luam 4G router muab kev pabcuam ntawm firewall. Nws tsuas yog xa cov ntaub ntawv xa mus nrog cov chaw nyob tshwj xeeb, thiab tsis xa cov ntaub ntawv pob khoom uas tsis txhawb nqa cov txheej txheem thiab kev xa cov ntaub ntawv pob khoom ntawm lub hom phiaj network, uas tuaj yeem tiv thaiv kev tshaj tawm cua daj cua dub.