Westermo DDW-142 Ethernet Extender 仕様ガイド

www.westermo.com  – A Beijer Electronics Group Company

Industrial Ethernet Extender 

DDW-142

Westermo Ethernet extender technology based on SHDSL makes it possible to reuse many types of pre-existing copper 

cables which can lead to considerable financial savings when installing new systems. The Wolverine DDW-142 allows effec-

tive 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  

2 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  WeOS (Westermo Operating Systems) has been developed to allow cross platform and future proof solutions. 

WeOS can deliver unique security functionality for this class of product as well as allowing the DDW-142 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.
The DDW-142 is 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. If however 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.
The DDW-142 is 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 main-
tenance. 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.

EN 61000-6-2

Industrial Immunity

EN 61000-6-4

 Industrial Emission

EN 61000-6-3

Residential Emission

EN 50121-4

Railway Trackside

3642-0300

DDW-142

1211-2027

Diagnostic cable (Console) (Accessories)

3125-0001

PS-30, Power supply, DIN mounted (Accessories)

Save time and money reusing old cable and equipment

 

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Up to 15.3 Mbit/s Ethernet over twisted pair or 30.6 Mbit/s with bonding

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2 port 100 Mbit L2 switch supporting VLAN and QoS

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Legacy connection via RS-232 port

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Security, legacy resilient networking from WeOS

 

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Port access control (802.1x) or MAC authentication

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RSTP and multimedia ring solutions

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Modem replacement, serial to IP, Modbus Gateway functions

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Easy to Use

 

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Basic installation with no configuration needed

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Web screen for simple configuration and CLI for professional use

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USB fluid configuration for easy maintenance

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Robustly designed for mission critical applications

 

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437,000 hours MTBF to MIL- HDBK -217F for extreme reliability

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Extensive line diagnostics and fault I/O contact and SNMPv3

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Robust design for vibration, temperature and dual power input

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