Fieldbus & Industrial Networking


Industrial Ethernet routing switch

September 2009 Fieldbus & Industrial Networking

Westermo Data Communications has released a range of high-performance industrial Ethernet switches with enhanced routing functionality. The RedFox series is designed to build cost effective, secure and reliable networks that would previously have required several discrete units.

Initially developed for special mission-critical applications in the defence, rail, aerospace and sub-sea markets, this new off-the-shelf version of RedFox is based on a design that exceeds normal industrial requirements. This robust DIN rail mountable unit has a heavy duty aluminium enclosure for maximum strength, heat dissipation and resilience to extreme levels of electromagnetic interference (300 A/m).

Manufactured from industrial grade components and able to operate in temperatures from -40 to +70°C with no internal fans, RedFox has an MTBF (mean time between failure) of 600 000 hours. The new switch provides the highest levels of standard compliance for EMC, railway applications, vibration, humidity, shock and altitude, allowing it to be used in just about any operating environment.

The range offers a number of Ethernet interface combinations, ranging from 10 to 18 10/100/BaseTX ports, plus the option of four SPF Gigabit and four 1000BaseTX ports. To ensure the network resilience RedFox supports STP (spanning tree protocol) and RSTP (rapid STP), and also features Westermo’s unique fast recovery of network topology (FRNT) redundant ring functionality. FRNT is able to reconfigure a redundant ring network consisting of up to 200 switches within 20 ms, regardless of network load. This functionality enables RedFox switches to be used in safety critical applications.

RedFox also supports IGMP (Internet group management protocol) snooping, which provides filtering techniques to manage the flow of data around the ring in such a way as to optimise the bandwidth. IGMP snooping has also been integrated into FRNT to ensure optimum performance even during a network failure.

Routing is becoming an essential function for the merging infrastructure and factory automation networks. The RedFox’s static routing and firewall functions can provide simple segregation to ensure dataflow is controlled between networks. Comprehensive VLAN (virtual LAN) support allows the physical switched network to be subdivided increasing security and network bandwidth and improving manageability. VLANs can also be allocated to particular switch ports and centrally configured.

Several layers of security are available, vital to prevent both malicious and accidental network failures including an inbuilt firewall and 256 bit AES encryption on IPSEC VPN tunnels. When using NAT (network address translation) the IP address of protected devices can be hidden in a local secure network. RedFox can also act as a VPN server allowing IPsec tunnels to be set up between remote users and a local secure network. Web configuration pages and SNMP (simple network management protocol) can be disabled and the command line interface (CLI) is secured using SSH (secure shell protocol).

Redfox is extremely easy to use, needing no configuration out of the box. An auto-discovery IP-Configuration tool allows the IP address, subnet mask and gateway address to be set up. A web interface allows configurations such as FRNT ring, VLANs or a basic firewall to be set up. Advanced configuration and monitoring can be achieved using SNMP. Fine tuning for rigorous applications using the intuitive CLI enables running changes to be made without the need for a reboot.

The units’ isolated power supply has an operating voltage range from 16 to 60 VDC and can be fed from two separate supplies of differing voltages.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

IO-Link starter kit
August 2020, Turck Banner , Fieldbus & Industrial Networking
Turck now offers a compact starter kit for users wishing to discover the benefits of the IO-Link digital communication protocol. The IO-Link devices contained in the box enable interested users to set ...

Read more...
Profinet gateway integrates device data
August 2020, Pepperl+Fuchs , Fieldbus & Industrial Networking
Pepperl+Fuchs has launched the new LB Profinet gateway, delivering not only conventional Profinet functionality but also full access to all connected HART devices. In practical terms, this will give users ...

Read more...
Ethernet safety I/O modules in IP67
August 2020, Turck Banner , Fieldbus & Industrial Networking
Turck has expanded its portfolio of safety I/O components with the TBPN and TBIP block I/O modules for Profisafe and CIP Safety respectively. The robust IP67 modules provide safety input and output signals ...

Read more...
IO-Link in manufacturing
August 2020, Endress+Hauser South Africa , Fieldbus & Industrial Networking
IO-Link is the youngest member in the portfolio of Endress+Hauser devices and brings digitalisation to basic instruments. The technology helps save on cabling and integration time, as well as expanding the amount of available I/O.

Read more...
Integration gateway for industrial automation
June 2020, SICK Automation Southern Africa , Fieldbus & Industrial Networking
Sensor specialist company SICK recently announced its new SIG200 Profinet Sensor Integration Gateway. The product is the first of a new line of gateways created to work as both IO-Link masters and small ...

Read more...
Completing the remote maintenance circle
July 2020, Throughput Technologies , IT in Manufacturing
What do the world’s machine builders want from a next generation remote maintenance solution? Secomea has been listening to thousands of them and has spotted a pattern. In this collective vision the ...

Read more...
Bronkhorst adds Ethernet/IP
July 2020, Mecosa , Fieldbus & Industrial Networking
Bronkhorst High-Tech has announced the availability of Ethernet/IP and Modbus-TCP interface options for its mass flowmeters and controllers, as well as its digital pressure controllers. Like the previously ...

Read more...
Tailored to the demands of the future
June 2020, Pepperl+Fuchs , Fieldbus & Industrial Networking
Gateway for the seamless integration of device and process data.

Read more...
IO-Link through to the cloud
May 2020, Pepperl+Fuchs , Fieldbus & Industrial Networking
The smart combination of the IO-Link sensor interface and the OPC UA communication protocol in a single device gives Pepperl+Fuchs new opportunities to offer complete, seamless, and transparent communication ...

Read more...
Seamless integrated connectivity for electric automation from Festo
April 2020, Festo South Africa , Fieldbus & Industrial Networking
The cloud is everywhere. We save data on the cloud and access it on our phones and computers from anywhere at our convenience. The same applies to seamless connectivity in industrial automation from your ...

Read more...