коммутатор/ PLANET IGS-4215-4T2S IP30 Industrial L2/L4 4-Port 10/100/1000T + 2-Port 100/1000X SFP Managed Switch (-40~75 degrees C, dual redundant power input on 9~48VDC/24VAC terminal block, supports ERPS Ring, CloudViewer app, MQTT and Cybersecurity fea