8 10/100TX ports
32G bps Non-Blocking, 8K MAC address table
Multiple Super Ring (recovery time <5ms), Rapid Dual Homing, Multiple Ring, and MSTP / RSTP, ITU-T G.8032 ERPS
IEEE 1588 Precision Time Protocol for precise time synchronization
VLAN, Private VLAN, QinQ, GVRP, QoS, IGMP Snooping V1/V2/V3, Rate Control, Port Trunking, LACP, Multi-Port Mirroring
IEEE 802.1AB LLDP and Korenix NMS for auto-topology and group management
Modbus TCP/IP for Factory Automation
Supports SNMP, Web, Telnet In-Band, Serial Out-Band Management
Embedded Hardware Watchdog for System Auto Rescue
Advanced configurable Multiple-Event Alarm Output
Isolated dual power input with redundancy
IEC 61850-3, IEEE 1613 Substation application
IP31 rugged aluminum case
Operating temperature: -25~70oC(JetNet 4508i) and -40~75oC (JetNet 4508i -w)