? Support the revitalization of the patent ring protocol OP-Ring (recovery time <15ms) and RSTP / STP / MSTP Ethernet redundancy? Support SNMPv3, IEEE 802.1X, HTTPS and SSH, enhanced network security? Support WEB, CLI, Telnet ? / serial console, Windows utility, and SNMP management using a variety of industrial design: -40 to 75 ° C operating temperature and redundant dual power input (18-36V DC) Protection Level:? IP40 Overview: OP-GY204 Series Industrial Ethernet Switch with 2 Gigabit SFP optical ports, four 10/100M Ethernet ports. Support the revitalization of the patent "OP Ring" Redundant Ring (recovery time <15ms), RSTP, STP, and MSTP protocol, to enhance the reliability of the network system. Its reliable hardware design is especially suitable for industrial communication applications require continuous operation. Features and Benefits:? OP-GY204:? 4x10/100BaseTX port + 2x1000BaseFX (SFP optical interface) supports the command-line interface (CLI), the main management functions quickly and easily configured to support IEEE 1588 PTP V2 (Precision Time Protocol) to achieve accurate? network time synchronization? DHCP Option 82 for IP address assignment with different policies? support the revitalization of the patent ring protocol "OP Ring" (recovery time <15ms), STP, RSTP, and MSTP Ethernet redundancy? I高标准 Snooping and GMRP multicast filtering Traffic? support port-based VLAN, IEEE 802.1Q VLAN and GVRP protocol, Simple Network planning? support port mirroring? support Ethernet / IP and Modbus / TCP protocols for device management and control? support multicast, broadcast storm control? support QoS and ToS / DiffServ, for traffic control and management? support link aggregation, optimizing bandwidth utilization? support SNMPv3, IEEE 802.1X, HTTPS and SSH, enhance network security? support TACACS +? using RMON effectively improve network monitoring and forecasting capabilities ? supports bandwidth management to ensure network stability support port-based MAC address locked to prevent illegal invasion by E-mail and relay output, automatic alarm criteria:?????? IEEE 802.3 IEEE 802.3u IEEE 802.3x Flow Control IEEE ? 802.1D-2004 STP IEEE 802.1w Rapid STP IEEE 802.1s Multiple STP IEEE 802.1Q VLAN Tagging IEEE 802.1p CoS IEEE 802.1X authentication IEEE 802.3ad link aggregation protocol:?????? I高标准v1/v2, GMRP, GVRP , SNMPv1/v2c/v3, DHCP Client, TFTP, SMTP, RMON, HTTP, HTTPS, Telnet, Syslog, DHCP Option 66/67/82, SSH, SNMP Inform, LLDP, IEEE MIB library:??? MIB-II, Ethernet-Like MIB, P-BRIDGE MIB, Q-BRIDGE MIB, Bridge MIB, RSTP MIB, RMON MIB Group 1, 2, 3, 9 Flow Control:?? IEEE 802.3x flow control, back pressure flow control switching properties: ? priority queue: 4 Maximum number of available VLAN's:? 256 VLAN ID Range:? VID1 ~ 4094 I高标准 groups:? 256 MAC address table size:? 8K packet buffer size:? 2 Mbit interfaces:? fiber ports: 2 X 1000BaseFX (SFP connector) RJ45 ports:? 4 X10/100BaseTX auto-negotiation Console port:? RS-232 (RJ45 connector) Alarm output:? two relay outputs, output capacity 1A @ 24VDC Power requirements:? Input voltage: 24VDC (18 ~ 36VDC), redundant dual power input current:?? OP-GY204: <0.24A @ 24VDC overcurrent protection:? provides reverse polarity protection:? provides connectors:? 6-pin terminal block mechanical properties:? Housing: Metal , IP40 protection Dimensions:? 60.5 x 118 x 140mm Weight:? 760g Installation:? rail mounting, wall mounting work environment:? Standard:? -40 ~ +75 ° C Storage temperature: -40 ~ +85 ° ? C (-40 ~ 185 ° F) Relative humidity: 5 ~ 95% (non-condensing) Standards and Certification: EMI: FCC Part 15 Subpart B Class A, EN 55022 Class A EMS: EN 61000-4 -??? 2 (ESD) Level 3, EN 61000-4-3 (RS) level 3, EN 61000-4-4 (EFT) Level 3, EN 61000-4-5 (Surge) Level 3, EN 61000-4?? - 6 (CS) level 3, EN 61000-4-8 Level 3 Impact:? IEC 60068-2-27 free fall:? IEC 60068-2-32 Vibration:? IEC 60068-2-6 Warranty:? 5 years