July 7, 2008 -
Featuring built-in 4-port Ethernet switch, Wolverine Models DDW-221 and DDW-222 offer transfer rates up to 5.7 Mbit/s and operating distance of 10 km. Redundant protocol can be used on SHDSL interface or on built-in Ethernet switch. It uses FRNT technology to re-configure network in event of any link or hardware failure. Model DDW-222 includes RS-232 serial adapter and 10-port Virtual Com port re-direct software, which re-directs Com port to IP address.
DDW-221 and DDW-222 have been added to Westermo's Wolverine series of Ethernet extenders. They have all the same features as their predecessor, the DDW-220, but also provide integrated serial port and redundant rings support. The most critically demanding applications are targeted: traffic management, airports management, on board railway signalling, critical process control, etc.
DDW-221 and DDW-222 support redundancy rings
Both for DDW-221 and DDW-222, the redundant protocol can be used either on the SHDSL interface or on the built-in Ethernet switch. It uses Westermo's unique FRNT (Fast Recovery of Network Topology) technology which is the fastest protocol on the market to re-configure a network in the event of any link or hardware failure.
Further, the DDW-222 includes a RS-232 serial adapter and 10-port Virtual Com port re-director software which re-directs a Com port to an IP address. Pre-existing programs that use Com ports can then be reused in IP networks. The cables of existing serial networks can be reused to create an Ethernet network while still allowing the legacy serial device to function on the new network. The unit supports TCP client, TCP server and UDP protocol modes allowing it to be used in a wide variety of applications.
Both DDW-221 and DDW-222 benefit from the advanced properties and functions of the DDW-220. The Westermo DDW-220 is an Ethernet extender enhanced with a built-in four port Ethernet switch which allows this one unit to be used to create entire Ethernet solutions. Existing twisted pair cables can be used to establish a high speed remote connection between two Ethernet networks. With transfer rates up to 5.7 Mbits/s and with an operating distance of up to 10 kilometres at lower data rates, this is an easy-to-install alternative to fibre optic or radio systems when linking remote Ethernet networks. The DDW-220 uses a transient blocking unit on each DSL line to provide both over-current and over-voltage protection on the line allowing it to handle indirect lightning strike transients, power induction and short circuit problems.
Easy configuration and diagnostics
Configuration of the units is kept to a minimum for easy use. They are preconfigured for multi-drop applications meaning a simple installation can be done with no software configuration at all. For further configuration, a built-in Web interface is provided so that only a computer with a standard Web browser is required. Help text and more advanced configuration are available within the Web interface. There are also comprehensive Web screen diagnostics for both the SHDSL transmission interfaces and the Ethernet switch allowing statistics to be viewed. The units also support SNMP allowing them to be managed as part of the overall network infrastructure.
Technical information
-Humidity: 5 to 95% without condensing
-Vibration: 15g (IEC 60068-2-6)
-Shock: 30g (IEC 60068-2-27)
-Dimensions: 134 x 105 x 122 mm
-MTBF 700 000h
WESTERMO TELEINDUSTRI AB
Westermo provides a full range of data communication and Ethernet equipment and solutions for such demanding applications as railways, aeronautics, military, water treatment, substation automation, roads and tunnels. The staff at Westermo provide the highest levels of service and technical support to help our customers to chose, configure and install the best solution for each specific application requirement. Our knowledge goes far beyond our own product range; we have a unique competence regarding your environment whether it is on a train, in airplanes, on the seabed or in a substation.
To ensure a close relationship with the customer, Westermo has a local presence in more than 30 Countries.
Westermo has three main product lines, Remote Access, Local Access and Industrial Ethernet, including more than one thousand different types and versions of modems, switches, routers, time servers or converters and the world's fastest recovery time redundant Ethernet
For more information : http://www.westermo.com Company Information: Name: Westermo Address: S 64040 Stora Sundby City: Stora Sundby Country: Sweden Phone: 46 (0) 16 42 80 00 http://www.westermo.com
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