The MIE - 5420 is a self-healing ring fiber optic switch with 16-port 10 / 100Base - TX and 4-port 1000M SFP. MIE - 5420 Support MR - Ring self-healing ring , suitable for being used as the core -side switch, Four 1000M SFP slots can be configured as SFP fiber optic module , composing 1000M optical fiber self-healing network , to ensure the safety of Gigabit link between the center switches . The MIE - 5420 supports a variety of network management : SNMP, Web browser , Telnet and RS232 console management . Network include : port configuration , the second floor function of all switches , RSTP , MR - Ring Access Control , RMON , port statistics, and Network Diagnostics .The  range of Operating temperature is -40 ° C to 75 ° C , it can be very easily adapted to the relatively harsh environment of industrial sites 

Key features:

Supporting MR-Ring protocol(recovery time <20ms)IEEE802.1w Rapid Spanning Tree Protocol, IEEE802.1S MSTP and IEEE802.1D STP-compatibleIGMP Snooping multicastSupports port-based VLAN and IEEE802.1Q VLAN tagging and GVRPIEEE802.1p QoS priority controlMAC address-based automatic connection failover relayRS-232 console, Telne, SNMP, Web browser and TFTP ManagementSupport IEEE 802.1x securityport rate controlStatic secure MAC addresses per portPort Mirroringsupport port aggregation ,support IEEE802.3ad, 3 link aggregation group10/100Mbps-Full/Half-duplex, Auto-Negotiation, Auto-MDI/MDIXfull wire speed forwarding rate