Cov neeg txawj ntse hauv tsev pib nyob rau hauv nruab nrab 90s ntawm lub xeem tiam, yog ze li kaum xyoo ua ntej txoj kev lag luam tshiab. Tuam Tshoj tus niaj hnub siv thaj chaw tsim kho, qhov tseem ceeb ntawm kev thov kom muaj kev ruaj ntseg muaj tswv yim, peev uas tau lees paub txog 80 feem pua ntawm cheeb tsam tsev kawm ntawv qhov kev txawj ntse, uas muaj kev ruaj ntseg rau pej xeem thiab kev tiv thaiv hauv tsev, feem coob ntawm ob. Lub ntsiab lus tseem ceeb yog: 161818 kev qhia, lub laj kab ntawm cov chaw zov me nyuam, Kev tswj chaw nres tsheb, video kev saib xyuas, kev ruaj ntseg hluav taws xob, neeg tuaj saib xyuas kev sib txuas lus, kev tswj hwm, kev ruaj ntseg thiab lwm chav tsev nyob. Yog li ntawd, nyob rau hauv Suav teb, thiaj li hu ua ntse lub tsev, tam sim no yog lub ntsiab theem ntawm txoj kev ruaj ntseg cov tuam txhab.
Rau thaj chaw tshiab, qhov kev lag luam tam sim no yog qhov tseem ceeb los muab ob qho kev daws teeb meem: ua ntej, raws li cov lus qhia txog cov yeeb yaj duab semi video. Ib tug yog raws li network video khoom network daws. Hard disk video recorder raws li qhov nyuaj ntawm qhov yuav tsum tau nqa tawm ib tug loj xov tooj ntawm Engineering cabling nyob rau hauv lub cell. Tsis tas li ntawd, yuav tsum ua kom tiav qhov kev sib tham hauv qhov kev sib tham, qhov kev thov rau lub tswb nrov kuj yog ib qho tseem ceeb heev, yog li ntawm thaj tsam ntawm kev tso ntawm coob tus yees duab cable, tswj kab hlau, teeb liab.
Elesuncable muaj peev xwm muab kab kev txuas rau cov neeg siv khoom, thiab yog tias koj xav tau, thov tawm koj cov lus.
