•  24x 10/100TX copper ports
•  Optional: up to 4x 1000LX Gigabit Ethernet ports (copper and/or fiber) and up to 8x 100FX Fiber Fast Ethernet    ports
•  2 port modules for tremendous flexibility
•  Non-blocking, store and forward switching
•  Supports many types of fiber (multimode, single-mode, bidirectional single strand)
•  Long-haul optics allow distances up to 90 km
•  Multiple connector types (ST, MTRJ, LC, SC)

• Immunity to EMI and heavy electrical surges
– Zero-Packet-Loss™ technology
– Meets IEEE 1613 Class 1 (electric utility substations)
– Exceeds IEC 61850-3 (electric utility substations)
– Exceeds IEC 61800-3 (variable-speed drive systems)
– Exceeds IEC 61000-6-2 (generic industrial)
– Exceeds NEMA TS-2 (traffic control equipment)
•  –40°C to +85°C operating temperature (no fans)
•  Conformal coated printed circuit boards (optional)
•  18 AWG galvanized steel enclosure
•  Hazardous location certification: Class 1 Division 2

•  Mutilevel user passwords
•  SSH/SSL (128-bit encryption)
•  Enable/disable ports, MAC-based port security
•  Port-based network access control (802.1x)
•  VLAN (802.1Q) to segregate and secure network traffic
•  RADIUS centralized password management
•  SNMPv3 authentication and 56-bit encryption

•  Simple plug and play operation – automatic learning, negotiation, and crossover detection
•  MSTP 802.1Q-2005 (formerly 802.1s)
•  RSTP (802.1w) and Enhanced Rapid Spanning Tree (eRSTP™) network fault recovery (<5 ms)
•  Quality of service (802.1p) for real-time traffic
•  VLAN (802.1Q) with double tagging and GVRP support
•  Link aggregation
•  IGMP snooping for multicast filtering
•  Port rate limiting and broadcast storm limiting
•  Port configuration, status, statistics, mirroring, security
•  SNTP time synchronization (client and server)
•  Industrial automation features (e.g. Modbus)

•  Fully integrated, dual-redundant (optional) power supplies
•  Universal high-voltage range: 88–300 VDC or 85–264 VAC
•  Popular low-voltage ranges: 24 VDC(10–36 VDC), 48 VDC (36–72 VDC)
•  Screw or pluggable terminal blocks available
•  Terminal blocks for reliable, maintenance-free connections
•  CSA/UL 60950 safety approved to +85°C

•  Web-based, Telnet, CLI management interfaces
•  SNMP v1/v2/v3 (56-bit encryption)
•  Remote monitoring (RMON)
•  Rich set of diagnostics with logging and alarms