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Device Server to Connect Legacy Serial Devices
Device Server to Connect Legacy Serial Devices
Westermo has announced the release of its Lynx DSS compact Device Server switch for connecting legacy serial control and telemetry systems to the latest IP networks. With low data rate serial communications being replaced by higher bandwidth IP networks, the Lynx DSS helps to preserve any investment in existing systems, add functionality by supporting new equipment that requires additional bandwidth, and ensures trouble free industrial communications for many years. Lynx DSS is an industrial Ethernet switch for managing applications with a combination of IP and serial connections. Providing a single unit solution the Lynx DSS replaces the need for multiple units. Powered by an updated version of the Westermo WeOS operating system, the device delivers enhanced serial to Ethernet connectivity, and support for dual serial networks, modem replacement functionality, and Modbus gateways. Legacy devices can be connected via two serial ports. One of these is configured for RS-232 and the other for either RS-232 or RS-422/485. Two versions are available, the L208-F2G-S2 and L108-F2G-S2. The L108 supports a range of layer 2 switching functions that provide resilient, rapid recovering redundant ring Ethernet networks. The unit has four 10/100 Mbit/s ports and two further ports can be fitted with either Gbit or 100 Mbit SFP transceivers. In addition to these functions the L208 provides additional layer 3 networking functionality including routing, firewalls and VPN remote access. With the increasing number of cyber attacks, advanced security is now critical for industrial networks. Remote, secure access to a network is provided using encrypted VPNs and a multi-port DMZ (demilitarized zone or subnet that is exposed to the Internet) can be constructed using the internal port-based-firewall-function. These functions support users wanting to communicate over potentially insecure networks and also help to prevent users inadvertently connecting to the wrong network.
