8-port Giga-bit Managed Forming one of the fastest-recovery Redundant Ethernet Rings with recovery time < 10ms over 250-unit connection Supporting "iA-Ring", Ring Coupling and Dual Homing Topologies Supporting SNMPv1/v2/v3, RMON & Port based/802.1Q VLAN network managements Event notification by Email, SNMP trap and Relay Closing Web-based, Telnet, and CLI configurations Proprietary Windows utility EtherManager for switch configuration and network management Redundant DC power inputs on the terminal block plus a DC-Jack Current overload protection Reverse polarity protection -10~60°C extended operating temperature

TCP/IP Advanced LCD Data Terminal Direct Ethernet access (100 MHz) with TCP/IP communication protocol 32 bit CPU USB interface Linux Operation System 240 x 64 pixel LCD display with LED backlight design Volume adjustable buzzer RS-232 and RS232/RS485 selectable serial port Mini-DIN PS2 compatible keyboard interface 8 matrix function keys with rubber style 2 digital inputs and 2 digital outputs Support VGA module function(optional)