JetNet 7310G

Key Features:

• 8 Gigabit Ethernet RJ-45 ports ,2 Gigabit Ethernet SFP ports
• 8 IEEE802.3at PSE with 240W PoEPower forwarding capability
• Non-Blocking, High Speed Network Switching Fabric
• Network Redundancy –MSR (Multiple Super Ring),ITU-T G.8032 ERPS, RSTP, MSTP, Super Chain
• Fully Device Management –SNMP v1/v2c/v3, RMON, Web UI, Telnet and Local Console
• Friendly Device and Network Topology recovery utility –KorenixView, KorenixNMS
• Advanced Cyber Network Security –MAC security, IEEE 802.1x Port Based access control , IEEE 802.1x Radius Server authentication, 802.1x MAB, Distributed Denial of Service, IP Source Guard, Denial of ARP Inspection
• Layer 2 Network Performance –IEEE802.1Q VLAN, Private VLAN, Trunk, Packet Filtering, DHCP Server/Client, Traffic Prioritize, Rate Control
• Layer 3 Network Routing Protocols –Static/Dynamic Route, VLAN Routing, Multicast Routing
• Advanced Layer 2 plus packet filtering (ACL) for field site network security
• Hardware Watchdog for System Auto-Recovery
• High Level Electromagnetic interference immunity
• IP Surveillance solution with NEMA-TS2 characteristic
• Railway Track Side EN50121-4 compliance
• High Operating Temperature –40~75°C
• Redundant wide range power input-DC 46~57V

Product Details


Standard IEEE 802.3u 100 Base-TX Fast Ethernet
IEEE 802.3ab 1000 Base-T
IEEE 802.3z Gigabit Ethernet Fiber
IEEE 802.3x Flow Control and Back-pressure
IEEE 802.1AB Link Layer Discovery Protocol (LLDP)
IEEE 802.1p Class of Service (CoS)
IEEE 802.1D-2004 Rapid Spanning Tree Protocol (RSTP)
IEEE 802.1s Multiple Spanning Tree Protocol (MSTP)
IEEE 802.3ad Link Aggregation Protocol (LACP)
IEEE 802.1x Port Based Network Access Protocol
IEEE802.3af/at Power over Ethernet


Switch Technology Store and Forward Technology with Non-Blocking 20Gbps Switch Fabric
CPU Performance 32 bits CPUwith Hardware based Watch-dog timer with 10Sreset timer
System Memory 32MBytes flash ROM, 256M bytes systemRAM
Transfer packet Size 64 bytes to 9K bytes Jumbo Frame
MAC address Table 16K
Packet Buffer
1.5MBytes shared memory for packet buffer with intelligent memory management unit for burst data traffic
Transfer performance
14,880pps for Ethernet and 148,800 for Fast Ethernet, 1488,100 for Gigabit Ethernet


Management Interface Telnet with SSH,Web Browser with SSL, SNMP V1/V2c/V3 with SNMP Trap (up to 4 trap stations), RMON (Group1,2,3,9) for in-band management. Local RS-232 connector for out-band management.
Management Security The maximum management session up to four, and support management HostIP secure feature to prevent unauthorized remote login
SNMP MIB MIB-II, Bridge MIB, Ethernet-like-MIB, VLAN MIB, IGMP MIB, Private MIB
NMS Windows based NMS(Network Management System) –KorenixNMS and KorenixView for device discovery and topology map auto construct
Network Time Protocol NTP with daylight saving and localize time sync function
Management IP Security Predefined Host IP address for management host login security
E-mail Warning 4 Receipt E-mail accounts with E-mail server authentication
System Event Log 2 Event log record modes-Local and remote Log Server with authentication

Network Performance

Port Configuration Port link Speed, Link mode, current status and enable/disable
Port Trunk IEEE 802.3ad Link Aggregation Control Protocol (LACP) and Static port trunk; trunk member up to 8 ports in one group, maximum 5 trunk groups
VLAN IEEE 802.1Q Tag VLAN with 256 VLAN Entries and provides 2K GVRP entries; 3 VLAN link modes-Trunk mode, Hybrid mode and Link access mode
Private VLAN The Private VLAN is specialfor group uplink access with independent port security. With the private VLAN function, each VLAN community is isolated and only exchange by high level device with primary VLAN community
IEEE 802.1Q QinQ Supports Double VLAN tag for VLANisolation and security
IEEE 802. 1p The Ethernet Switch MAC controller supports IEEE 802. 1p Class of Service function; Per interface with 4 queues
IGMP Snooping IGMP Snooping v1/v2/v3 for multicast filtering and IGMP Query mode; also support unknown multicasting process forwarding policies-drop, flooding and forward to router port
Rate Control Ingress/Egress filtering for broadcast, multicast, unknown DA or all packets
Port Mirroring On-line traffic monitoring on multiple selected ports
DHCP System supportsDHCP Client function for dynamic IP address obtain from DHCP Server, and the Switch also support DHCP Server function with DHCP Relay Agent to forward DHCP request through specified forwarding path. The DHCPServer also offer port based DHCP Server function with predefined IP address or perform MAC&IP address binding function
IEEE 802.1x/ Port Security Port based network access control, and authenticated by localize pre-defined MAC address or remote RADIUS Server
Power over Ethernet IEEE 802.3af, IEEE 802.3at, End-Span wiring architecture
PoE operating mode Auto Mode: IEEE802.3af/at behaviors with IEEE802.3af 1-Event and IEEE 802.3at 2-Event classification for standard PD
Forced Mode: User configured Power consumption budget control with IEEE 802.3 PoE/PD detection, or forced without PD detection
PoE forwarding conductor RJ-45: V+(3,6), V-(1,2)
Power forwarding capability PoE Port: 15W/IEEE 802.3af, 30W/IEEE 802.3at, 35W /IEEE 802.3at with high power voltage input
PoE System Power Budget: 240W at 75°C Ambient temperature
PoE System Power Budget PowerBudget Reserve by PD declaration. The power budget control system will reserve power for connected PD device, once latest PD device (PoE8) claimed power over the system surplus power, then the latest PoEwill be disabled
System Power Budget: 240Watts / 54V for High Power PoE Input Voltage

Network Redundancy

Multiple Super Ring (MSRTM )

New generation Korenix Ring Redundancy Technology, Includes Rapid Super Ring, Rapid Dual Homing, TrunkRingTM, MultiRingTM, Super ChainTM and backward compatible with Legacy Super RingTM

Rapid Dual Homing (RDHTM ) Multiple uplink paths to one or multiple upper Switch, up to 256 Groups
RDHTM Peer protection
TrunkRingTM Integrate port aggregate function in ring path to get higher throughput ring architecture
MultiRingTM Supports redundant ring up to 5 Gigabit rings in one device
Super Chain It is new ring technology with flexible and scalability, compatibility, and easy configurable. The ring includes 2 types of node Switch –Border Switch and Member Switch
Rapid Spanning Tree IEEE 802.1D-2004 Rapid Spanning Tree Protocol;it compatible with Legacy Spanning Tree and IEEE 802.1w
Multiple Spanning Tree IEEE 802.1s Multiple Spanning Tree, each MSTP instance can include one or more VLANs, and also supports multiple RSTP deployed in a VLAN or multiple VLANs
ITU-T G.8032 ERPS * Note-1 SupportITU-T G.8032 ERPS V1 single ring topology, and ERPS v2 multiple rings with ladder topology
Cyber Security *Note-2 The Cyber Security function includes-DHCP Snooping protection, Dynamic ARP inspect protection, IP Source Guard (IPSG), DistributeDenial-of-Service (DDoS), IEEE 802.1x MAB for non-IEEE 802.1x compliant device.
Industrial Protocol Modbus/TCP, Ethernet/IP

Routing Protocols

IP Routing Supports Default Static and Dynamic Route
Virtual LAN Routing Incorporate both of IEEE802.1Q Bridge and Routing Function
Routing Information Protocol Hop-BasedIP Routing with RIPv1 and RIPv2
IGMP Multicast Group Management Protocol support IGMP v1,v2
Multicast Routing 128 IP Multicast Routing entries
VRRP Short of Virtual Route Redundancy Protocol, Automatically Backup Routing route to specified router
OSPF LinkState based IP routing protocol support OSPFv1 and OSPFv2


Enclosure port 1000Mbps Gigabit Ethernet port(#1~#8):8x RJ-45 Connectors with IEEE 802.3at PSE function
SFP port (#9,#10): supports 1000Mbps Fiber Transceiver with Digital Diagnostic Monitoring (DDM) for optical fiber quality inspection. The SFP connection with high priority than RJ-45 copper.
Power input: 4-Pin Removable Terminal Block Connector
Digital Input: Semi Digital Input (Low: 0~10V, High:11~30V)
Digital Output: Dry Relay Output with Normal Open operating mode with DC 24V/0.5A contact capability
Reset Button System hardware reset
Cables 100Base-TX: 2pairs STPCat.5e/Cat.6 cable, EIA/TIA-568B 100-ohm (length:100Meters)
1000Base-T: 4 pairs STP Cat. 5e/Cat.6 cable, EIA/TIA-568B 100-ohm (length:100Meters)
Power Cable: Recommended uses 18AWG electrical power cable with UL certification for the high power PoEapplication
Diagnostic LEDs 1000MbpsRJ-45 port: Link (Green on)/Acrivity (Green Blinking),Speed 1000 (Amber on)
PoE:PoEforwarding (Amber on), PoEabnormal or detection (Blinking)
1000Mps SFP: Link/Activity (Green on, Green Blinking), Speed 1000 (Amber on)
Power: Power on (Green on)
Alm: Alarm(Red on)
Sys: Ready (Green on)
R.S:Green on (Ring Normal)/Blinking (wrong ring port connective), Amber on (Ring abnormal)/Blinking (ring port failed)
D.I.: Digital Input (Green on)
D.O.: Dry Relay Output (Red on)

Power Requirements

System Power Input IEEE 802.3at 30W PoE application: DC 50~57V
IEEE 802.3af 15.4W PoEapplication: DC 46~57V
Power Consumption DC 48V: 14.5W (without PoE loading)
DC 53V: 15 W (without PoE loading)
DC 57V: 15.4W (without PoE loading)


Installation EN50022 DIN Rail Mount
Dimensions 230.6mm (W) x 120mm (H) x 121.7mm (D)–with mounting ears
198mm (W)x 120mm (H) x 121.7mm (D)-without mounting ears
Material Housing Steel Metal with Aluminum Housing
Ingress Protection IP-31


Operating temperature -40~75°C: 240Wattswith PoEfull loading
Operating humidity 0%~95%, non-condensing
Storage Temperature 40~85°C
Hi-Pot Power-Chassis GND/Housing: AC 1.2KV/ DC 2.25KV
RJ-45 –Chassis GND/Housing: AC 1.2KV/ DC 2.25KV

Regulatory Approvals

Railway Application Rolling Stock Track Side EN50121-4
EMC EMI: IEC/EN61000-6-2, Compliance with EN50121-1/-4, CE class A, FCC sub part-15 class-A
EMS: IEC/EN61000-6-4, Compliance with EN50121-1/-4, EN61000-4-2/-4-3/-4-4/-4-5/-4-6/-4-8/-4-9
Vibration & Shock Compliance with IEC 61373