Westermo has added the DDW-221 and DDW-222 to the Wolverine series of Industrial 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 critically demanding applications targeted are traffic management, airports management, on board railway signalling, critical process control, etc.
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 FRNT (Fast Recovery of Network Topology) technology which is a fast protocol 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, available from Paqworks , 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.
- 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