• Westermo Teleindustri AB

Switches for On-Board Railway Applications

Westermo Teleindustri AB has introduced two compact and rugged Power-over-Ethernet (PoE) Switches that support video, LCDs and wireless LAN access points. The new devices further enhance Westermo’s innovative IP Train concept, which delivers a complete Ethernet switch and routing solution to provide a robust network infrastructure for the creation of intelligent trains. The Viper-112-P8 and Viper-212-P8 twelve-port (8 PoE and 4 standard Ethernet) managed switches support the IEEE 802.3at `plug-and-play' PoE communications standard. PoE enables both power and data to be transmitted on a single multi-core cable, reducing overall wiring and enabling faster installation. The Viper switches deliver up to 66W of power across their 8 PoE ports. The Viper isolates the input DC voltage from the connected devices to protect them from power surges. Power distribution is managed with ports `tuned’ to maximise distribution efficiency. Specifically designed to meet the full requirements of the on-board rail vehicle market, the Viper switches deliver improved levels of reliability and simplified network design, installation and maintenance. On-board rolling stock applications present one of the toughest environments for any electronic device. The Viper series is designed and manufactured to exceed the EN 50155 on-board railway standard for electronic equipment, which encompasses not only EMC requirements, but also shock, vibration, extended temperature range and humidity. The switches have also been designed to achieve the highest mean time between failures of up to 448 000 hours (MIL-C217F2), ensuring the extremely long-term and reliable field operation that is expected within the railway industry. The company also offers next generation ethernet switches, device server to connect legacy serial devices, ethernet products for machine building, media converters, isolators, etc.