1. Industrial keyboards tseem hu ua industrial Ethernet keyboards. Raws li qhov xwm txheej tam sim no, nrog kev txhim kho txuas ntxiv thiab nrawm thiab kev nce qib ntawm kev siv tshuab network, qhov kev thov rau cov tes hauj lwm hauv kev lag luam, tshwj xeeb tshaj yog nyob rau hauv indus ...

Optical transceiver yog ib qho khoom siv uas hloov ntau yam E1 teeb liab rau hauv cov teeb liab optical. Optical transceiver tseem hu ua optical kis khoom siv. Optical transceivers muaj tus nqi sib txawv raws li tus naj npawb ntawm E1 (uas yog, 2M) cov chaw nres nkoj xa....

Optical transceivers tuaj yeem muab faib ua 3 pawg raws li thev naus laus zis: PDH, SPDH, SDH, HD-CVI. PDH optical transceiver: PDH (Plesiochronous Digital Hierarchy, quasi-synchronous digital series) optical transceiver yog lub peev xwm me me optical transceiver ...

Ib lub router yog txheej 3 network ntaus ntawv. Lub hub ua haujlwm ntawm thawj txheej (lub cev txheej) thiab tsis muaj peev xwm ua tau zoo. Thaum tam sim no ntawm ib qho chaw nres nkoj hla mus rau lub hub, nws tsuas yog xa cov tam sim no mus rau lwm qhov chaw nres nkoj, thiab tsis quav ntsej wh ...

Access Layer Switch Feem ntau, ib feem ntawm lub network uas txuas ncaj qha rau cov neeg siv lossis nkag mus rau lub network yog hu ua txheej txheej nkag, thiab ib feem ntawm txheej txheej nkag thiab txheej txheej tseem ceeb yog hu ua txheej txheej txheej lossis txheej txheej txheej. Acc...

Switching Capacity Lub peev xwm ntawm kev hloov pauv, tseem hu ua backplane bandwidth lossis hloov bandwidth, yog qhov siab tshaj plaws ntawm cov ntaub ntawv uas tuaj yeem ua haujlwm ntawm qhov hloov pauv interface processor lossis daim npav interface thiab cov ntaub ntawv npav. Lub exchange cap...

Dab tsi yog qhov txawv ntawm Ca5e, Cat6, thiab Cat7? Qeb Tsib (CAT5): Cov zaus kis tau tus mob yog 100MHz, siv rau lub suab kis tau tus mob thiab cov ntaub ntawv kis tau tus mob nrog lub siab tshaj plaws kis tau tus mob ntawm 100Mbps, feem ntau yog siv nyob rau hauv 100BASE-T thiab 10BASE-T tes hauj lwm. Qhov no...

Lub 1 * 9 ntim khoom kho qhov muag module yog thawj zaug tsim nyob rau hauv 1999. Nws yog ib qho khoom siv kho qhov muag kho qhov muag. Nws feem ntau yog kho ncaj qha (soldered) ntawm lub rooj tsav xwm hauv Circuit Court ntawm cov khoom siv sib txuas lus thiab siv los ua qhov kho qhov muag kho qhov muag. Qee lub sij hawm nws tseem hu ua ...

1. Cov qib ua haujlwm sib txawv: Txheej 2 hloov pauv ua haujlwm ntawm cov ntaub ntawv txuas txheej, thiab Txheej 3 hloov pauv ua haujlwm ntawm txheej txheej network. Txheej 3 hloov tsis tau tsuas yog ua tiav high-speed forwarding ntawm cov ntaub ntawv packets, tab sis kuj ua tau zoo network kev ua tau zoo raws li qhov sib txawv ...

Peb lub teb chaws xov tooj optical transceivers tau tsim sai heev nrog kev txhim kho ntawm kev soj ntsuam kev lag luam. Los ntawm analog mus rau digital, thiab tom qab ntawd los ntawm digital mus rau cov ntsiab lus siab, lawv tau nce mus tas li. Tom qab xyoo ntawm kev sib sau ua ke, lawv muaj ...