| General Specifications | 
| Technology | 
| Standards | IEEE802.3af / 802.3at for Power-over-Ethernet IEEE802.3 for 10BASE T
 IEEE802.3u for 100BASE-T(X) and 100BASE-FX
 IEEE802.3ab for 1000BASE-T(X)
 IEEE802.3z for 1000BASE-X
 IEEE802.3x for Flow Control
 IEEE802.1D-2004 for Spanning Tree Protocol
 IEEE802.1w for Rapid STP
 IEEE802.1Q for VLAN Tagging
 IEEE802.1p for Class of Service
 IEEE8021X for Authentication
 IEEE802.3ad for Port Trunk with LACP?
 | 
| Protocols | IGMPv1/v2, GVRP, SNMPv1/v2c/v3, ICMP, ARP, Telnet, DHCP Client, TFTP, SNTP, SMTP, RMON, HTTP, Syslog, PROFINET, Modbus/TCP, LLDP, IEEE 1588 PTP V2, IPv4, NTP Client, EAP, RADIUS, 802.1x | 
| MIB | MIB II, IF-MIB, SNMPv2 MIB, BRIDGE-MIB, RMON MIB Group 1,2,3,9 | 
| Flow Control | IEEE802.3x for Flow Control, back pressure flow control | 
| Switch Properties | 
| Priority Queues | 8 | 
| Max. Number of Available VLANs | 256 | 
| VLAN ID Range | VID 1 to 4094 | 
| Static IGMP Groups | 256 | 
| Dynamic IGMP Groups | 256 | 
| MAC Table Size | 16K | 
| Packet Buffer Size | 12M bit | 
| Interface | 
| RJ45 Ports | 10/100/1000BASE-T(X) auto negotiation speed | 
| Fiber Ports | 100BASE-FX / 1000BASE-X SFP slot | 
| LED Indicators | PWR1, PWR2, Alarm, Run, Ring, Ring Master, RJ-45 Link/Speed, SFP Link, PoE | 
| Console | RS232 (RJ45 connector) | 
| Relay Output | 2 relay outputs with current carrying capacity of 2A @30VDC | 
| DIP Switches | Ring Control | 
| Button | Reset Button | 
| Power Management | 
| Input Voltage | 9-48 VDC or 18~30VAC for Non-PoE models 45-57 VDC for in PoE-802.3af mode
 51-57 VDC for in PoE-802.3at mode
 | 
| Input Current | Max. 1.5A @ 18VAC Max. 2.0A @ 9VDC (without PD)
 Max. 3.2A @ 45VDC (Support up to 8 ports at 15.4W per PoE port)
 Max. 5.5A @ 51VDC (Support up to 8 ports at 30W per PoE port)
 | 
| Connector | Removable 5-pin Terminal Block for power input | 
| Reverse Polarity Protection | Present (DC only) | 
| Physical Characteristics | 
| Housing | IP30 protection, metal housing | 
| Dimension | 60mm x 138mm x 164mm (W x D x H) | 
| Weight | approx 1.2 kg (Max.) | 
| Installation | DIN-Rail, Wall Mount (Optional Kit) | 
| Environmental Limits | 
| Operating Temperature | -20°C~70°C (-4°F~158°F) | 
| Storage Temperature | -40°C~85°C (-40°F~185°F) | 
| Ambient Relative Humidity | 5%~95% non-condensing | 
| Regulatory Approvals | 
| Safety | UL60950-1 2nd Ed. /CSA C22.2 No.60950-1-07 2nd Ed. / EN60950-1 / CB | 
| EMC | FCC Part 15, Subpart B, Class A EN 61000-6-4:2007+A1:2011
 EN 61000-6-2:2005
 | 
| Shock | IEC 60068-2-27 | 
| Drop | IEC 60068-2-32 | 
| Vibration | IEC 60068-2-64 | 
| RoHS | Yes | 
| MTBF | TBD | 
| Warranty | 5 years |