PLC (Power line Carrier)
Inde, 2-waya dongosolo mofanana IP dongosolo.
Nthawi zambiri iyenera kukhala yopitilira RVV2*0.75.
Inde, ikhoza kugwira ntchito ndi ena ndi SIP.
Inde, 290A iliyonse imatha kulumikiza ma 8 2-waya oyang'anira m'nyumba, ndipo 290A ikhoza kuwonjezeredwa ndi 290AB awiri.290AB iliyonse imatha kulumikizananso ndi ma 8 2-waya oyang'anira m'nyumba.
Gulu la 290A*1+290AB*2 limatha kugwira ntchito ndi 24 2-waya zowunikira m'nyumba.Ngati oyang'anira ali oposa 24pcs, mukhoza kuwonjezera gulu limodzi 290A ndi 290AB.290A ili ndi madoko awiri a RJ45 kuti alumikizane ndi cholumikizira cha netiweki kuti azilumikizana ndi magulu ena.Umu ndi momwe 2-waya intercom system masikelo.
290A ndi 290AB zimayendetsedwa ndi adaputala ya DC48V, 290 master imatha kuyendetsedwa ndi adapter ya DC48V ndi switch ya PoE, kapolo wa 290 safuna mphamvu zowonjezera.
