Ethernet switch order received for motorway
A
Westermo Data Communications product story
Edited by the Engineeringtalk editorial team
Aug 24, 2007
65 Lynx400 industrial Ethernet switches will support an industrial Ethernet network that will manage safety information on the new A75 motorway in France.
Westermo Data Communications has received an order for 65 of its Lynx400 ultra-rapid reconfiguration industrial Ethernet switches to support an industrial Ethernet network that will manage safety information on the new A75 motorway in France.
The A75, also known as "La Meridienne", is the panoramic motorway between Clermont-Ferrand and Beziers, which provides a new North to South route in the region of the Massif Central made famous by the new Millau multi-span cable-stayed viaduct which it runs over.
In a forthcoming project, the networked safety information system including variable message signs (VMS), weather stations, vehicle counting, emergency calls and surveillance videos will all use an Ethernet network to send an receive all information.
The network architecture is based on a backbone consisting of 2Gbit/s high-speed Ethernet trunks.
Each node is configured for optimum transport of the information flows for the various functions.
Westermo Lynx400 Ethernet switches with optical couplers cable of spanning over 40km enable local communication with the VMS, radio data transmission station and weather station.
The flows generated are channelled by VLAN sub-networks to avoid network overloads and ensure real-time interchange of all the necessary information.
The selection of Westermo industrial products with high MTBF and wide temperature, vibration and shock resistance ensures the high availability of this solution.
In addition to the industrial Ethernet switches, Westermo are also supplying LD-64 convertors specifically for the Millau multi-span cable-stayed viaduct.
The variable message signs (VMS) located just before and on the viaduct itself communicate over a serial communication protocol using a redundant optical fibre Ethernet link based on Westermo LD-64 convertors.
The Westermo LD-64 convertors are used to build a redundant ring network over fibre where connected equipment has either an RS-232 or RS-422/485 interfaces.
As the fibre is completely insensitive to external interference it is the perfect solution for applications in exposed locations such as the roadside and when there is a requirement for fault tolerant communication.
The LD-64 provides a high level of data security as fibre or fibre pair failure does not affect the communication.
There are also digital alarm outputs that can be connected to a relay to control an external alarm indicator.
LD-64 supports data rates of up to 375Kbit/s, which meet the requirements of the Millau project.
The device can also handle transmission ranges up to 25km using single-mode cable.
Not what you're looking for? Search the site.
Google Ads
Contact Westermo Data Communications
Related Stories
- Electric-vehicle chargers use Moeller RCDs
- Tube-style cable carriers protect Guedel's cables
- Siemens helps secure safety of Heathrow T5
- Reo AC power supply used in Downhole Compressor
- Emerson to automate EDF's CCGT units with Plantweb
Articles by product category
- Consultancy and Services (903)
- Machine Building (4,517)
-
Engineering Design Software (6,179)
- Engineering Design Software (12)
- 2D CAD software (200)
- 3D CAD software (1,157)
- FEA and structural analysis software (369)
- Fluid, thermal, noise, vibration software (334)
- Simulation, modelling, validation software (914)
- Rendering, visualisation, styling software (196)
- Materials design and moulding design software (151)
- Process, instrumentation, automation software (258)
- Electrical design software (164)
- Publishing and documentation software (229)
- Maths, charting, statistics, QA software (317)
- Data, document management software (310)
- CAM, CNC, production management software (568)
- File conversion software, data capture (351)
- PLM and collaboration software (649)
-
Drives, Motors and Controls (3,361)
- Drives, Motors and Controls (1)
- Precision Motors and Gears (411)
- Industrial Drives/Controls (1,276)
- Linear Drives and Motors (114)
- Industrial Motors (497)
- Stepper and Servo Drives, Motors, Controls (1,060)
- Small Mechanical Components, Joining, Tools (1,975)
-
Control and Instrumentation (5,028)
- Plantwide control (1,324)
- Plant- and Machine-Wide Communications (1,174)
- Smaller-Sized PLCs (387)
- CNC and Motion Controllers (184)
- Mid-range and Large PLCs (201)
- Power Supplies, Uninterruptible Power (562)
- HMIs/Operator Interfaces (294)
- Logic Controllers, Timers and Relays (96)
- Cabling, Conduit, Signal Conditioning (806)
-
Monitoring, Measurement and Quality (5,459)
- Monitoring, Measurement and Quality (1)
- Data acquisition Software and Communications (494)
- Data Acquisition Hardware and PC I/O Boards (472)
- Electrical and Electronic Testing, PAT Equipment (630)
- Form/co-ordinate, optical, vision instruments (703)
- Gauges, Indicators and Instruments (440)
- Data loggers (422)
- Materials testing equipment (421)
- Telecomms/network test equipment, software etc (154)
- Testing and Calibration Services and Information (500)
- Testing, analysing and monitoring equipment (1,222)
-
Electrical and Electronic Equipment Design (4,160)
- Batteries, chargers and circuit protection (555)
- Connectors, Terminals, Busbars, Slip Rings (679)
- Enclosures and Equipment Cooling Fans (709)
- Knobs, Handles and Enclosure Hardware (420)
- PCs and Embedded Systems (798)
- Electrical and Electronic Subassemblies (369)
- Electrical and Electronic Components (630)
-
Materials and Processing (2,963)
- Materials and Processing (5)
- Materials and components (2,215)
- Rapid Prototyping (458)
- Materials processing and testing (285)
-
Engineering Industry News, Resources (6,093)
- Engineering Industry News, Resources (4)
- Engineering Business News, Views (388)
- Engineering Exhibitions, Events (562)
- Engineering Conferences (425)
- Engineering Seminars (400)
- Engineering Industry Developments, Awards (633)
- Engineering Guides, Newsletters (349)
- Engineering Recruitment, Employment (219)
- Engineering Training Courses (433)
- Engineering Education, Resources, Standards (838)
- Engineering Industry Reports, Surveys (597)
- Electronic Resources for Engineers (278)
- Health and Safety Legislation (402)
- Health and Safety Strategy, Risk Assessment (113)
- Health and Safety Consultancy, Software (175)
- Health and Safety Events, Training, News (277)
-
Powertrain Design (3,598)
- Powertrain Design (2)
- Bearings (939)
- Chains and belts (326)
- Gears, brakes, couplings and engines (1,441)
- Hydraulic Components (471)
- Lubricants (418)
-
Capital Equipment (3,387)
- Capital Equipment (1)
- Manufacturing Machinery and Plant Equipment (468)
- Production line blowers and fans (62)
- Compressors and Air Treatment (510)
- Electronics Manufacturing, Tools, Instruments (192)
- Electrical hardware (131)
- Machinery and Production Equipment (1,093)
- Robotics, Handling and Storage (930)
-
Sensors (7,080)
- Sensors (8)
- Accelerometers and Vibration Sensors (427)
- Loadcells, Force Sensors, Torque Sensors (699)
- Pressure sensors (621)
- Flowmeters and Flow Sensors (618)
- Level Sensors and Leak Detectors (527)
- Linear Position Sensors (399)
- Rotary Position, Tilt and Angular Sensors (546)
- Proximity Sensors (700)
- Gas, Chemical, Radiation, Magnetic Sensors (284)
- Humidity and Environmental Sensors (152)
- Temperature sensors (612)
- Vision and Colour Sensors (1,384)
- Barcode Sensors (103)
- Valves, Pumps, Process Hardware (3,623)
