Introduction JHA-MIGS1212H is a high performance, cost-effective high-end Layer 3 industrial Ethernet switch. The switch provides 12 10/100/1000Base-T(X) Ethernet port and 12 1000Base-X SFP slot. It Support WEB management, VLAN, QoS, SNMP, IGMP snooping and other network functions; Support Ethernet fast ring network protection former STP/RSTP/MSTP spanning tree ring network; Industrial-grade three-level ESD protection is suitable for many occasions,such as Intelligent transportation, outdoor surveillance, industrial networks, safe cities, and other harsh environments require deployment in this product while adopting a fanless, low power consumption, industrial-grade design, and an operating temperature range of -40 to 85°C, which can meet various industrial site requirements.