JetNet 4008f Overview

Overview Specifications Ordering Information Datasheet

Industrial 8-Port Web-Managed Ethernet Switch Redundant Ethernet Super Ring Supports VLAN/QoS/IGMP Snooping Web-based Configuration Redundant DC Power Inputs Alarm Relay Output Robust Aluminum case, IP31 DIN-Rail/Wall-mounting/Desktop Installation

JetNet 4008f is an 8-port Web-managed Industrial Etherner Switch. This35 mm DIN-Rail switch not only includes all functions of a unmanaged switch, but also possesses powerful features, such as port VLAN, Quality of Service, IGMP (Internet Group Management Protocol) snooping and failure alarm by relay output. With a web-based configuration interface, JetNet 4008f ensures an easy installation and management of your switches. JetNet 4008f also uses a robust aluminum case, offering IP30 standard protection. JetNet 4008f provides powerful device redundancy, including a redundant Ethernet network (Super Ring), and redundant power inputs. JetNet 4008f is the best solution to enhance your industrial networking automation. An optional model JetNet 4008f is available with a 100Base-FX port in SC type connector, fulfilling your needs for longer data transmission distance.

VLAN- Improves Network security and performance
VLAN (Virtual LAN) provides many benefits when you plan your network for Industrial applications. Via software, VLAN groups devices into a logical subgroup within a local area network regardless of the physical LAN segment they are attached. VLAN protects your important industrial devices or systems from unauthorized access. With VLAN function, devices from a different LAN cannot communicate or access your LAN, providing extra security to the entire network. VLAN function also can restrain the traffic within a VLAN. It ensures that the traffic only circulates within a sub-domain without broadcasting over the entire network. By doing so, network performance can be improved in a large scale. Another advantage of VLAN is that when an industrial device is physically moved to another location, it can stay on the same VLAN without any hardware reconfiguration.

IGMP Snooping- Deliver the right data to right place
IGMP (Internet Group Management Protocol) plays a significant role in industrial automation, especially for VOIP (Video Over IP) applications. IGMP may be used with some field bus protocols over Ethernet, such as Siemens Profinet, Rockwell EtherNet/IP, and Foundation Fieldbus HSE (High Speed Ethernet). These industrial Ethernet protocols make extensive use of publisher/subscriber communications models by multicasting packets over the network. For this reason, multicasting traffic floods in a network since a switch cannot determine which multicasting strings belong to which group of users. It simply broadcasts over the entire network. It can consume a lot of bandwidth if many servers are multicasting and sending streams to a certain segment. The purpose of IGMP snooping is to restrain multicasting traffic in a switched network. By filtering the multicasting traffic and sorting it to corresponding group of devices, aswitch forwards messages only to the interface that is interested in the traffic. It ensures that the right data will only be sent to the right destination. It will reduce the total amount of traffic on the entire network substantially.