Description
Functional description
The Wolverine DDW-142 and DDW-242 allow effective Ethernet networks to be
created over long distances up to 15 km (9.3 mi) at data rates up to 15.3 Mbit/s on
a single twisted pair cable. By using two pairs “bonded” this rate can be doubled up
to 30.6 Mbit/s. The integral switch allows two Ethernet devices to be attached and
an RS-232 port allows for a legacy piece of equipment to be incorporated into the IP
network.
The operating system (WeOS) in DDW-142 and DDW-242 can deliver unique security
functionality for this class of product as well as allowing the product to form part of
a resilient multimedia ring network using the Westermo FRNT protocol or industry
standard STP/RSTP.
WeOS has been developed to provide industrial networking solutions and contains
amazing serial connectivity capability – from being able to simulate an old AT modem,
convert Modbus RTU to TCP or encapsulate serial data into an IP packet.
DDW-142 supports the layer 2 features in WeOS while DDW-242 also supports all layer
3 features, for more details please see the WeOS datasheet.
DDW-142 and DDW-242 are incredibly flexible and easy to use. A basic point-to-point
or multidrop network can be created without the need for any kind of configuration.
However, if a more complex solution requires some kind of network configuration, the
web based setup is simple to use. A CLI interface is also provided making the unit easy
for networking professionals to quickly master. Once the system is configured, an easy
solution is also available for the maintenance engineer – USB backup and restore means
that stored configurations can be automatically downloaded from a USB stick.
DDW-142 and DDW-242 are often used in applications on railways, roads or with utilities
where failure could result in significant costs. All Westermo products are designed with
high MTBF in mind to improve operational reliability and also give long service life. Even
features like the SHDSL diagnostics and management allow indication of line degradation,
allowing planned maintenance. As the unit is designed for these applications, Westermo
also ensure that testing is carried out to ensure the unit can operate at extremes of
temperature, EMC and vibration and still provide robust communications.
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