JetNet 4508f V2 Overview

The JetNet 4508f V2 is a new 8-por t indust r ial managed Fast Ethernet Switch with advanced network performance and high system reliability, including MSR and MSTP network redundancy technologies, for ensuring real-time and high quality connectivity in various networking applications. The Ethernet switch includes 6 10/100Mbps Fast Ethernet ports with RJ-45 connectors, two 100Mbps fiber ports and 32Gbps switch fabric to provide a real time non-blocking transmission performance for satisfying the needs of long distance and high bandwidth requiring application while ensuring traffic switching without data loss.
Besides, the new system design includes a hardware based watchdog timer for keeping the operating system live. It also provides power redundancy with wide range DC10V~60V inputs for ensuring the power continuity in the system. Combining the outstanding L2 management features along with the LLDP and the JetView Pro Intelligent NMS into the ruggedized design with IP31 enclosure and -10~70°C (JetNet 4508f V2) and -40~75°C (JetNet 4508f-w V2) wide operating temperature, JetNet 4508f V2 switches provide highly reliable and secure data transmission under severe industrial environments.

Fiber Optic for Long Distance Data Transmission
To offer enhanced reliability, stability and extended connectivity, JetNet 4508f V2 is designed with 2 fiber ports with superior characteristics, including antielectromagnetic interference, anti-moisture and antivibration capabilities. To meet your needs for various distance transmission, the fiber ports support several connection types - Multi-mode fiber with 2KM link distance or Single-mode fiber with 30KM link distance. Moreover, the fiber connector supports duplex SC /ST or simplex SC for special requests of the Wavelength Division Multiplexing (WDM) applications

High Performance Micro processor with embedded Hardware Watchdog Time The JetNet 4508f V2 designed with 32 bits ARM-9E running at 180 MHz and with up to 200MIPS per formance, combines an embedded hardware based watchdog timer to avoid system crashed by environmental factors, such as intense electromagnetic interference, extreme temperature variations and/ or any wrong instruction looping. This outstanding design can ensure the system stability and reliability when it installed in hardened environment.

Advanced L2 Network Control Performance and Security features
The JetNet 4508f V2 provides var ious network control and security features to ensure the reliable and secure network connect ion. To optimize the industrial network environment, the switch supports Tag -based VLAN, IGMP Snooping, IEEE 802.1s Multiple Spanning Tree, IEEE 802.1w Rapid Spanning Tree, Quality of Service (QoS), Link Aggregation Control Protocol (LACP), Rate Control, Port mirror, etc. allowing users to fully handle network traffic and ensure the real - t ime data st ream del ivery.
To avoid hacker’s attacks and ensure the secure data transmission, JetNet 4508f V2 series features DHCP client, DHCP server with IP and MAC binding, 802.1X Access Control, SSH for Telnet security, IP Access table, port security, Private –VLAN for independent network traffic handling as well as many other security features.

Modbus TCP/IP for Factory Automation Network Enhancement
The Modbus TCP/IP protocol is supported in JetNet 4508f V2 series for factory automation applications. It enables administrator to connect to data acquisition (SCADA) system and read the switch's operating information using its own Modbus TCP/IP master program for monitoring and maintaining switch’s status. With the supported Modbus TCP/IP, the JetNet 4508f V2 series become an element of factory automation such as the Programmable Logic Controller (PLC), Distributed Control System (DCS), and allow users to monitor/maintain factory equipment on the HMI (Human Machine Interface) system, including production information and communication status. Therefore, user does not need to integrate multiple management platforms to monitor factory equipment: with just a single JetNet 4508f V2 platform users can easily achieve enhanced monitoring and maintenance of the entire factory.

Easy-to-Configure Network Management Interface
For easy of configuration and monitoring, the JetNet 4508f V2 offers various of management interface , such as SNMP, Web Browser, In-Band Telnet and Out-Band Local serial console with command like interface. The switch status as well as all the networking features can be enabled through these management interfaces. The failure notifications are later sent through e-mail, SNMP trap, Local/Remote system log, Fault event alarm relay.
In addition to all these management interfaces, JetNet 4508f V2 also supports Korenix JetView easy network management utility for achieving cost efficiency in system construction as well as the enhanced JetView Pro i²NMS, which integrates comprehensive network monitoring features for auto topology discovery, device auto discovery, group IP address change and firmware upgrade.

Comprehensive Redundant Solutions – Multiple Super Ring (MSR^TM)
The JetNet 4508f V2 supports new generation ring technology - MSR^TM (Multiple Super Ring), which includes various new technologies for different network redundancy applications and structures. It allows aggregating up to 4 Fast Ethernet Rings. With the MSR^TM technology, a node can be configured to multiple rings with the failover time in as little as 5ms and zero-second of restoration time. In addition, users can extend the ring topology by adding hundreds of JetNet series to meet the large-scale network needs without compromising the network speed.
The MSR^TM also allows the JetNet series to easily connect with core management switches via standard Rapid Spanning Tree Protocol or through multiple paths or nodes to increase the reliability by RDH^TM (Rapid Dual Homing) technology. By integrating MSR^TM and Link Aggregation Control Protocol (LACP) the JetNet series can enhance the link availability and increase the overall link capacity. Two or more Fast Ethernet connections are combined in order to increase the bandwidth and to create a resilient and redundant link.

Rapid Super Ring (RSR^TM) Technology

Rapid Super Ring is the 2nd generation of Korenix Ring Redundancy technology. The recovery time is greatly improved from 20ms to few ms for both copper and fiber rings. The Ring master can be auto-selected by RSR engine. The 1st ring port of the R.M. is the primary path while the 2nd ring port of the R.M. is the block path. Once the primary path fails, the 2nd path will be recovered within few ms. Besides; the restoration time is also shortened to zero in the R.M. auto-selection mode.

Seamless Ring Port Restoration^TM
Seamless restoration is a new Korenix patented technology which can restore a failed ring without causing any loop problem, topology change and packet loss. With zero second restoration time, this mechanism eliminates any unstable status and guarantees the applications running non-stop.

Rapid Dual Homing (RDH^TM) Technology
Rapid Dual Homing is also an important feature of Korenix new generation Ring technology. It supports ring coupling with other vendors devices. Moreover, providing easy configuration and multiple redundancies, the failover time is much faster and the restoration time is zero ms. Uplinks can be auto detected and gathered into groups. In each group uplinks are sorted into primary, secondary and standbys based on their link speed. The uplink with the highest speed is more likely to be active path for data transmission. Link aggregation is also integrated into RDH^TM. An uplink connection can be a single link or several links aggregated as a trunk, which provides better redundancy and link capacity.

TrunkRing^TM
TrunkRing is a new feature in MSR which merges the two technologies of RSR and link aggregation. It takes advantages of aggregation to enhance the link redundancy, while increasing the link speed. The ring will open only if all the aggregated links are broken. Link aggregation can be achieved by either static trunk or LACP. Not all the link sections in a TrunkRing need to be the same. Ring links can be either symmetric or asymmetric. Some are a single path, and the others are aggregated by links where the number of links in a trunk group can be different. Users can enhance the link redundancy at different locations in accordance to the need. The link with less speed is more likely to be used as the backup path for restoring the network to full play capacity.

MultiRing^TM

The MultiRingTM provides easier connectivity between two ring networks. The simplest example is to connect two r ings by a single device. Depending on the number of ports and the speed, the JetNet 4508f V2 can connect as a 100Mbps ring and uplink with JetNet 5010G or higher level Korenix Industrial Switch. As shown in the below figure, MultiRingTM technology simply extends the network topology by linking multiple rings into a line or into multiple directions.

In addition to extensibility, MultiRingTM has great diversity of various ring technologies. When MultiRingTM enabled, JetNet 4508f V2 can connect RSR rings, TrunkRingTM and a Super Ring together and simultaneously provide more Fast Ethernet Ring connectivities. This provides extensibility to new technologies while keeping the great backward compatibility.

Link Aggregation Control Protocol

Link Aggregation Control Protocol allows users grouping multiple Ethernet ports in parallel to increase the link bandwidth. The aggregated ports can be viewed as one physical port, so that the bandwidth is higher than just one single Ethernet port. The member ports of the same trunk group can balance the loading and backup with each other. The LACP feature is usually used when higher bandwidth is needed for the backbone network. This is a cost-effective way for transferring much more data. If the trunk port is also assigned as a ring port, it will become a TrunkRing, which means the bandwidth of ring path has increased with port trunk technology. Now, there is no recovery time when failure occurred. The JetNet 4508f V2 provides a simple and easy way to aggregate port bandwidth into Rapid Super Ring.

IEEE 1588 Precision Time Protocol (PTP)
The Precision Time Protocol is designed to synchronize t ime across Ethernet networks. I t allows synchronization of distributed clocks to submicrosecond accuracy for devices that may have differing precision, resolution and stability. JetNet 4508f V2 supports Auto (or bindery clock), Master and Slave modes for time synchronization to achieve a high level of synchronization within an industrial motion-control environment with a minimum use of network and computing resources. The protocol helps for sequencing event measurements, scheduling outputs, synchronizing actuation, time-stamping, coordinating event records, etc.

Auto Topology Discovery & Efficient Management through LLDP and JetView Pro i²NMS

JetNet 4508f V2 supports topology discovery or LLDP (IEEE 802.1AB Link Layer Discovery Protocol) function that can help users to discover multi-vendor’s network devices on the same segment by an NMS system, which support LLDP function. With LLDP function, NMS can easily maintain the topology map, display port ID, port description, system description, VLAN ID, etc. Once a link failure happens, the topology changed events are updated to the NMS to help users easily maintain the network system.

Besides the SNMP and LLDP protocols, JetNet 4508f V2 series efficiently works with the Korenix patented JetView Pro i²NMS, which in addition to the auto-topology discovery, also delivers MSR^TM group management, group IP assignment, firmware upgrade, configuration file backup/ restore ,SNMP MIB Browser /compile, etc. Furthermore, users can export the topology map to diverse formats, such as JPG, BMP, PNG and PDF, for easily managing and trouble-shooting the network. The user-friendly software allows administrators to discover devices automatically and efficiently manage the performance of the industrial network.

Rugged Design for Harsh Environments
The JetNet 4508f V2, compliant with the electromagnetic conformance requirements of industry applications, provides a high level of electromagnetic susceptibility exceeding the requirements of railway EMC standard - EN 50121-4, IEC 61373 vibration as well as Traffic control and Heavy-industrial standards' with distinguished electrical slow transient (Surge), Radio-Frequency Electromagnetic Field (RS), Electromagnetic Fast Transient (EFT) protection. Equipped with a rugged aluminum case with high thermal-conductivity design, it is capable of resisting -10~70^oC (JetNet 4508f V2) and -40~75^oC (JetNet 4508f-w V2) wide temperature ranges while providing reliable connectivity under harsh industrial environments.

JetNet 4508f V2 Appearance

Dimensions (Unit -mm)