Westermo DDW-142-12VDC Ethernet Extender 仕様ガイド

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Industrial Ethernet Extender 
DDW-142
Westermo’s 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. DDW-142 allows 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 2 Ethernet 
devices to be attached and an RS-232 port 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. 
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 
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.
Ordering Information
Art.no
Description
3642-0300
DDW-142 Industrial Ethernet Extender
3642-0400
DDW-142-12VDC Industrial Ethernet Extender
1211-2027
Diagnostic cable (Console) (Accessories)
3125-0001
PS-30, Power supply, DIN mounted (Accessories)
WeOS
 
Save time and money reusing old cable and equipment
•  Up to 15.3 Mbit/s Ethernet over twisted pair or 30.6 Mbit/s with bonding
•  2 port 100 Mbit L2 switch supporting VLAN and QoS
•  Legacy connection via RS-232 port
 
Security, legacy resilient networking from WeOS
•  Port access control (802.1x) or MAC authentication
•  RSTP and multimedia ring solutions
•  Modem replacement, serial to IP, Modbus Gateway functions
 
Easy to Use
•  Basic installation with no configuration needed
•  Web screen for simple configuration and CLI for professional use
•  USB fluid configuration for easy maintenance
 
Robustly designed for mission critical applications
•  437,000 hours MTBF to MIL- HDBK -217F for extreme reliability
•  Extensive line diagnostics and fault I/O contact and SNMPv3
•  Robust design for vibration, temperature and dual power input
DDW-142_1704_EN_REV. C
EN 61000-6-2
Industrial Immunity
EN 61000-6-4
 Industrial Emission
EN 61000-6-3
Residential Emission
EN 50121-4
Railway Trackside
EN 50121-4
Railway Trackside
EN 61000-6-2
Industrial Immunity
EN 61000-6-3
Residential Emission
EN 61000-6-4
Industrial Emission
EN 61000-6-1
Residential Immunity