JetNet 5020G

Key Features:

JetNet 5020G

The JetNet 5020G is a high port density Ethernet Switch supports 16 ports Fast Ethernet, and 4 ports Gigabit Ethernet in RJ-45 or SFP for fiber connection. It is designed for field site data convergence to backbone network and up to control data center. The highly heavy industrial Electric-Magnetic Compatibility level, wide operating temperature and voltage provide excellent environmental tolerance to bear the applications which are installed in outdoor or the environment with high noise interference, such as factory, railway track site or Intelligent Traffic Control System (I.T.C.S. ). It also adopts comprehensive network control protocols to enhance network transport performance. With those brilliant system design and network features, the JetNet 5020G will be the best network transmission device for your industrial Ethernet Switch solution.

– 16 10/100Base-TX, 4 Gigabit RJ-45/SFP combo ports
– 100Mbps, 1000Mbps Optical Fiber Connection
– 11.2Gbps Non-Blocking, High-Speed Network Switching Fabric
– 1.5Mbytes shared memory for packet buffering
– 9Kbytes Jumbo Frame for large data transmission
– 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 – Korenix View, Korenix NMS
– Advanced Network Security –MAC security, IEEE 802.1x Port-Based access control, IEEE 802.1x Radius
Server authentication, 802.1x MAB, Denial of Service, IP Source Guard, Denial of ARP Inspection
– Layer 2 Network Performance – IEEE802.1Q VLAN, Private VLAN, Trunk, Traffic Filtering, DHCP
Server/Client, Traffic Prioritize, Forwarding Rate Control
– Layer 2 plus Packet Filtering – MAC based, SA/DA of IP, SA/DA of TCP/UDP, ICMP
– Real Hardware Watchdog compliant with Railway / Heavy Industrial application
– Multiple Event Dry Relay Output, Semi Digital Input
– High Level Electromagnetic interference immunity
– Compliance with Heavy Industrial EMC, Track Side EMC
– Railway Track Side, Road Traffic Control or Harsh Applications

Product Details



IEEE 802.3 10Base-T Ethernet
IEEE 802.3u 100Base-TX Fast Ethernet
IEEE 802.3u 100Base-FX Fast Ethernet Fiber
IEEE 802.3ab 1000Base-T Gigabit Ethernet copper
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 802.1Q Double Tag VLAN ( QinQ)
IEEE 802.1D Rapid Spanning Tree (RSTP)
IEEE 802.1S Multiple Spanning Tree Protocol (MSTP)
IEEE 802.3ad Link Aggregation Protocol (LACP)
IEEE 802.1x Port based Network Access Protocol
ITU-T G.8032 ERPS v1/v2


Switch Technology  Store and Forward Technology with 11.2Gbps Non-Blocking Switching Fabric
System Throughput 16.6 Mega packet per second, 64Bytes packet length
CPU Performance 600Mhz MIPS CPU with 10 Seconds Hardware Based Watchdog Timer
System Memory 128Mbytes RAM, 32Mbytes Flash ROM
Transfer packet Size 64Bytes ~9712Bytes (excludes Tag)
MAC address Table 16K
Packet Buffer 1.5Mbytes shared memory
Transfer performance 14,880 pps for Ethernet, 148,800 for Fast Ethernet, 1488,100 for Gigabit Ethernet


Configuration, monitoring interface • In-Band Management: Telnet with SSH, Web-Browser with SSL, IPv4/IPv6 SNMP V1/V2c/V3
with SNMP Trap (4 Trap Stations), RMON Group 1,2,3,9
• Out-Band Management: Local RS-232/RJ-45 connector with Cisco like command
System Manage Secure • Telnet/Local Console support command like interface with Cisco like commands, and offers
4 management sessions; the system supports SSL for HTTP security, SSH for Telnet security
• Supports Manage Station with IP Secure function, up to 4 Manage Stations
• Management Device Login Switch System by Remote RADIUS account/password, key for
RADIUS Server authentication
SNMP MIB MIB II, Bridge MIB, Ethernet Like MIB, VLAN MIB, IGMP MIB< Private MIB
Management Utility Supports Korenix windows utility with IEEE 802.1AB link Layer Protocol for Device finding and Link Topology Discovery
Network Time Protocol NTP protocol with daylight saving and localize time sync function
IEEE 1588 Precision Time Protocol v1/v2 with Time Transparent
E-mail Warning
4 receipt E-mail accounts with mail server authentication
System log
Local or remote log server with authentication
System Auto Maintenance
System auto load configuration from USB Flash disk without manual control

Network Performance

Port Configuration Port Link Speed, Link Mode, Link Status and Port Enable/Disable
Port Trunk/ Link Aggregation IEEE 802.3ad port aggregation and static port trunk, Trunk member up to 8 ports, maximum 10 trunk groups include Gigabit Ethernet port
VLAN IEEE 802.1Q tag VLAN with 4K VLAN entries, 2K GVRP entries 3 VLAN modes – Trunk, Hybrid and Link access
Private VLAN   Direct Client ports in isolated /community VLAN to promiscuous port in primary VLAN
IEEE 802.1 QinQ
Double Tag for Private VLAN Access
Class of Service
IEEE 802.1p class of service, 8 priority queues/port
Traffic Prioritize
Supports 8 physical queues with weighted fair queuing (WRR) or Strict Priority Schemer, which follows IEEE 802.1p CoS tag ID and IPv4 Type of Service/Differ information to prioritize the traffic of your industrial network
IGMP Snooping
IGMP Snooping v1/v2c/v3 for multicast filtering and IGMP Query mode, also support unknown multicast forwarding policies- Drop, Flooding and Forward to route port
Rate Control
Ingress/Egress filtering for Broadcast, Multicast, Unknown DA or All packets
Port Mirroring
On-line traffic monitoring on multiple selected target ports
Port Security
Only permit the Link partner which with predefined MAC address to access the Ethernet interface
DHCP Client/Server with IP & MAC address binding, DHCP Relay Agent function and DHCP Server with Static port based IP assigned function
IEEE 802.1x
Port Based Network Access Control with EAPoL to permit or Deny interface access with Remote RADIUS Server authentication
Cyber Security *Note-2 The Cyber Security function includes- DHCP Snooping protection, Dynamic ARP inspect protection, IP Source Guard (IPSG), Distribute Denial-of-Service (DDoS), IEEE 802.1x MAB for non-IEEE 802.1x compliant device.
Industrial Protocol Modbus/TCP, Ethernet/IP

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 RDH Peer protection
Integrate port aggregate function in ring path to get higher throughput ring architecture
MultiRingTM  Couple or multiple up to 10 Rapid Super Rings in one device, JetNet 5020G supports up to 8 100M rings and 2 Gigabit rings
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. 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
Support ITU-T G.8032 ERPS V1 single ring topology, and ERPS v2 multiple rings with ladder topology
Loop Protection
The Loop Protection prevents any network looping caused by RSTP and MSR ring topology change


 Enclosure Port   10/100Base-TX Fast Ethernet: 16 x RJ-45 10/100Mbps, Auto MDI/MDI-X, Auto Negotiation
1000Base-T Gigabit Ethernet: 4 x RJ-45 100Mbps/1000Mbps, Auto MDI/MDI-X, Auto Negotiation
SFP Fiber: 4 x SFP combo with RJ-45 with hot-swappable, and support digital diagnostic monitoring (DDM) function for fiber communicates quality management.
The SFP Interface supports 100Mbps, 1000Mbps Fiber Transceiver with Auto-Recognize function and plug and play.
RS-232 Console: RJ-45 (8P8C), Baud Rate: 115200, N,8,1
Power Connector: 4-Pin Removable Terminal Block
DI/DO Connector: 4-Pin Removable Terminal Block
Cable  100Base-TX: 4-Pair UTP/STP Cat.5 Cable (Maximum 100Meters)
1000Base-T: 4-Pair UTP/STP Cat.5 Cable (Maximum 100Meters)
Fiber: Refers to SFP Fiber Transceiver Specification
Diagnostics LED 10/100Mbps Port: Link/Active (Green on / Blinking), Full Duplex (Amber on)
1000Mbps Port: Link/Active (Green on/ Blinking), Speed (1000Mbps link Amber on, 10/100Mbps
link Amber off)
Pwr: Power Ready ( Green On)
Sys: System Ready (Green On), System on booting/update (Green Blinking)
DI/DO: Digital Input (RED On), Dry Relay Active (RED On)
R.S.: Green on (Ring normal)/Blinking (wrong ring port connective), Amber on (Ring abnormal)/ Blinking (device’s ring port failed)

Power Requirement

System Power Redundant Power Input with polarity reverse protection Typical Input Voltage: DC 24V, 9.6~60V variation
Power Consumption 10Watts/DC12V, 11Watts / DC24V, 14Watts/DC48V, 16Watts/DC60V


Installation EN50022 DIN Rail Mounting
Enclosure Material  Steel Metal with Aluminum
Ingress Protection   IP-30
Dimension (mm)   160 (H) x 108 (W) x 127 (D) without DIN Rail Clip
160 (H) x 108 (W) x 136 (D) with DIN Rail Clip


Operating Temperature -40°C~75°C
Operating Humidity 0%~95%, Non-Condensing
Storage Temperature -40°C~80°C
Hi-Pot Insulation AC 1.2KV for Ethernet Interface to Power, Power to Chassis Ground, Ethernet Interface to Chassis Ground


EMC  EMI: IEC/EN61000-6-2, EN55022
FCC Class A, CE
Radiation, Conduction

EMS: IEC/EN61000-6-4
IEC61000-4-2, IEC61000-4-3, IEC61000-4-4, IEC61000-4-5, IEC61000-4-6, IEC61000-4-8

Vibration  IEC 60068-2-6 : 10~150Hz,20m/S2, 20 Sweeps/Axis
Shock IEC 60068-2-27: 50gn,18ms,Half-Sine wave
Free Fall IEC 60068-2-32: 1 corner, 3 line, 6faces
Warranty 5 Years