Product Guide 2009 - Westermo - #9

Extend your network far beyond

the normal limits of Ethernet

The Wolverine series is the ideal solution for extending your Ethernet

network over copper cables where in the past the only option would

have been fibre. At shorter ranges the data rate can be as high as 5.7

Mbit/s in both directions.The technology used suggests transmission

distances of up to 10 km (6.2 miles) at lower data rates. In practical

applications however much greater distances have been achieved.

The SHDSL transmission technology makes the Wolverine series

perfect for the reuse of existing copper cable installations from older

communications networks. It is transparent for multicast addressing,

VLAN packets, allows VPN pass-through for IPSec and can be used

with protocols like MODBUS/TCP and Profinet l/O.The units will

auto negotiate the transmission speed but can also be forced to

choose a slower (more reliable) or faster (less reliable) data rate.

Wolverine

G.SHDSL up to 5.7 Mbit/s.

Distances up to 15 km with extensive

line protection.

Built in WHOOBaseT 4 port switch

Serial to IP conversion (RS-232)

<20 ms FRNT ring redundancy on large networks

Transparent for multicast addressing

VLAN and VPN

Made easy configuration and comprehensive

diagnostic

Approved for explosive environments

(ATEX, Class 1, Div 2)

Extended temperature range (-40 to +70°C)

16 to 60 VDC redundant power input

with reversed polarity protection

IP 40 robust metal housing

Product/Art. no

DDW-100

3621-0002

DDW-120

3621-0100

Description

Plug and play industrial Ethernet extender

Plug and play industrial Ethernet extender

Data rates up to 5.7 Mbit/s. Compatible with

DDW-2XX.

Connectivity

10/100BaseT

DSL connector

SHDSL connector

10/100BaseT

DSL connector

SHDSL connector

DDW-220

3642-0200

Plug and play industrial Ethernet extender

Data rates up to 5.7 Mbit/s. Built in switch.

4x10/100BaseT

2 X DSL connectors

\ / Class I, Div 2

DDW-221

3642-0210

«£> ^ ft »

Plug and play industrial Ethernet extender

Data rates up to 5.7 Mbit/s. Built in switch and

support for redundant rings.

4x10/100BaseT

2 X DSL connectors

DDW-222

3642-0220

Plug and play industrial Ethernet extender

Data rates up to 5.7 Mbit/s. Bulit in switch and

support for redundant rings. Serial interface

with serial to IP conversion.

4x10/100BaseT

2 X DSL connectors

Serial (RS-232)

Ethernet Extenders

Customer Success Story

Safety critical railway control system

Poland's rail system is one of the largest in Europe, but in terms of quality and safety,

there is a need for modernization. One of the companies employed for this is Zak-

lady KOMBUD Automation, a Polish company that offers overall solutions for railway

automation, covering system design, production, implementation and maintenance.

A new safety system covering 100 km of railway line in central Poland has been built

in two steps. A chain of 15 DDW-220 SHDSL Ethernet extenders connecting to a

number of cabinets with traffic control equipment were installed in the first step. In

the next step 15 DDW-221 s were been added alongside the tracks of the Centralna

Magistrala Kolejowa (Central Rail Bus line).

The safety system update on this route has resulted in increased safety on many

levels, and by making use of pre-existing cabling, they have been able to keep the

cost down. In contrast to previously used devices, the Wolverine series has several

advantages -The wide variation of operating temperature (-40 to +70°C) as well

as the Transient Blocking Unit on each line interface that provides both over-current

and over-voltage protection thus allowing the line to handle indirect lightning strike

transients are just some of them.

The railway control system is divided in sections covering about 2 km (1.24 mi) each. At the end of every section

there is a control station that monitors the traffic and prevents conflicting movements. This makes ongoing move-

ment of traffic impossible unless the route is proved to be safe. Signalling systems provide information of nearby

trains and suggest a safe speed. Axle counters provide accurate information as to whether another train is in the

same section. A start and reset detection point is installed in every section, and if the count is evaluated as zero the

section is presumed to be clear for a second train. The decision to use pre-existing cabling to provide the data com-

munication in this safety critical application worried the customer at first. Parts of the cables were in bad shape and

some of them were up to 30 years old.

Westermo distributor, Tekniska Polska, preformed on-site tests using DDW-220s which were connected to the

actual cables and achieved perfect communication.Today this application uses more than 30 Wolverine Ethernet

extenders installed over sections 2 to 4 km in distance.

Railway station 2

First installation - completed May 2008: A chain of 15 DDW-220 link the control stations with SHDSL technology. Existing

cabling was used. Distance between control stations 2 to 4 km. Second installation - completed December 2008: A series of

DDW-221 in a redundant ring configuration were added to the system to further enhance the robustness of the network

Ethernet Extenders