研華EKI-2706G-1GFPI 4GE PoE+1G+1G SFP,非網(wǎng)管型PoE工業(yè)以太網(wǎng)交換機,IEEE802.3af/at,24~48VDC(BE型),48~53VDC(AE型),-40~75℃