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The Westinghouse Standard Train Describer The Westinghouse Small

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					The Westinghouse Small Train Describer
As part of the Standard Train Describer
family, a small TD is available for use
where a limited number of inputs are
required. Fitted in an EMC compliant                                                      The Westinghouse Standard Train Describer
housing with hinged front panel, this
uses the same technology as the
Standard TD and is modular in design to
enable ease of hardware exchange.
                                                                                                                                  The Train Describer has
                                                                                                                                  long been regarded as
The quality of construction, reliability of
components and diagnostic facilities
                                                                                                                                  an essential adjunct to
available provide a simple package that                                                                                           the signalling
can be easily maintained and repaired
within minutes under fault conditions. All
                                                                                                                                  equipment of today’s
components/cards used within the                                                                                                  signal boxes and
system are those employed in the
established WRSL fully duplicated VME
                                                                                                                                  control centres.
TD, as installed at numerous locations.

The Central Processor unit runs the
                                                                                                                                  The display of a code showing the
WRSL TD executive programme and has
                                                                                                                                  identity, priority and route to be taken for
front panel visual indications to display
                                                                                                                                  each train is a facility which is key to the
system status (watchdog), availability, on             Small Train Describer Unit                                                 smooth operation of the modern railway.
line status and system fault.
                                                                                                                                  The code may be displayed on the
                                                Running on either 240V or 110V supply                                             schematic diagram used by the
The system software is common between
                                                the following features are provided:                                              operator to set up routes and follow
locations with a single data EPROM
                                                •    Simple Eurocard technology                                                   progress of the trains or on a VDU
providing the site specific configuration.
                                                •    Modular design                                                               screen. The description code
Data preparation conforms to
                                                •    Single board processor card          Westinghouse Train Describers are       automatically follows the movements of
specification ST1346 C.1.
                                                containing separate boot, program and     configured to allow maximum             the train and is transmitted to the
                                                data PROMs                                hardware and software flexibility and   neighbouring signal box when the train
The total package is housed within an
                                                •    Eight channel serial card            so meet the unique requirements of      enters the adjoining area. Providing the
attractive industrial housing with a
                                                supporting data configurable RS232/       each installation. Furthermore, this    means of the manipulation and display
hinged closing front panel. All cards are
                                                422 communication                         flexibility brought about by the        of these codes is the Train Describer.
free from the clutter of front panel cabling,
all terminations being made at the rear of      •    Digital input card with internal     modular construction, makes it
the unit on screw-lock D type connectors.       wetting and front panel visual status     possible to install the minimum size
This feature allows all modules to be           indications for up to 64 voltage free     system at the initial stage.
removed without the need to unlpug a            inputs
single cable, which is invaluable during        •    Up to four V23 4-wire modems,
fault rectification.                            each with front panel diagnostic          From simple fringe units , through
                                                indications                               small TDs with local inputs, to large
A single EURO PSU provides system               •    12V/5V combined Eurocard PSU         geographic systems, Westinghouse
power with dual voltage front panle             •    Full maintenance monitoring          supplies the complete range of Train
indication and adjustable voltage facility.     including RS232 serial monitoring and     Describers.
                                                visual TX/RX indications
                                                •    All external connections from rear
                                                via D25 and D9 connectors
                                                                     Westinghouse Rail Systems has been                      Operating features include :
                                                                     manufacturing Train Describers for over 40
                                                                     years. The latest processor based systems are           •    Interpose Train Description
                                                                     the result of extensive development and                 •    Cancel Train Description
                                                                     practical experience, and include many
                                                                     advanced features.
                                                                                                                             •    Recall Berth Contents
                                                                                                                             •    Recall Train Location
                                                                     •    Compliant to specification BR 800                  •    Recall Map by Train Identity
                                                                     •    Data Preparation compliant to ST 1346 C.1          •    Manual Stepping of a Train
                                                                     •    Compact card mounted VME based                     •    Follow Train
                                                                          processors
                                                                     •    Real-time operation
                                                                     •    Dual input and processing systems with
                                                                          automatic changeover for maximum
                                                                          availability
                                                                     •    Single processor system available when
                                                                          economy outweighs the need for a dual
                                                                          system
                                                                     •    Excellent Reliability
                                                                     •    VDU Signaller’s Interface with map display
                                                                     •    Alternative display available - Light Emitting
                                                                          Diode (LED) type for in-line display on control
                                                                          panels, or VDU map display
                                                                     •    Modular design of hardware and software -
                                                                          simplifies changes to accomodate revised
                                                                          signalling or operating patterns and
                                                                          facilitates extension
                                                                     •    Interrogation facilities to assist the Signaller   Technician’s Terminal at Carlisle which provides   Carlisle Train Describer with WESTRONIC
                                                                     •    Stepping output over standard BR 1810 links        a Windows based environment for the compre-        S2 input cubicle on the left and dual TD
                                                                          to information, automatic train reporting and      hensive interface to the TD                        cubicle on the right
                                                                          cab secure radio systems
                                                                     •    Compatible Fringe Box unit                                                                            Operational alarms such as Equipment
                                                                     •    Automatic code insertion capability                                                                   Fault (EFA), Not Described (NDA), Trans-
      Manchester Piccadilly Train                                    •    Built in event logging and diagnostics                                                                mission Fault (TFA) and Description
      Describer Cubicle                                                                                                                                                         Received Warnings (DRW) are provided
                                                                     •    Speed reporting capability
                                                                                                                                                                                to the Signaller.
                                                                     •    Hot Axle Box Detector interface capability
Recent new Train Describers supplied by Westinghouse include:        •    Optional train movement logger                                                                        The Follow Train feature allows a se-
Cowlairs                         Railtrack Scotland        1998      •    Proven in service and backed by                                                                       lected train to be tracked throughout the
Greenhill                        Railtrack Scotland        1999           Westinghouse experience and resources                                                                 control area automatically from map to
Stratford ‘C’                    Railtrack East Anglia     1999                                                                                                                 map.
Stourbridge Junction             Railtrack Midlands        1999
Manchester Piccadilly            Railtrack North West      1999
Scunthorpe                       Railtrack LNE             1999
Wembley Main Line                Railtrack Midlands        2000
Carlisle                         Railtrack North West      2000
Belfast Central                  Translink                 2001
Preston                          Railtrack North West      2001
West Hampstead                   Railtrack Midlands        2001
Trent                            Railtrack Midlands        2002
Derby                            Railtrack Midlands        2002                                                                                                                 Signalling inputs can be obtained via
Kings Cross                      Railtrack Eastern         Current                                                                                                              serial and parallel sources.
Peterborough                     Railtrack Eastern         Current
Sheffield                        Railtrack Eastern         Current
Colchester                       Railtrack Eastern         Current                                                                                                              Progress of trains can be reported to
                                                                                                                                                                                external information systems utilising BR
Recent new Small Train Describers include:                                                                                                                                      1810 protocol and Information VDUs may
                                                                                                                                                                                be configured into the system allowing
Carriage Shed North (Will’den)   Railtrack Midlands        2001
Cricklewood                      Railtrack Midlands        2001                                                                                                                 non-signalling stff to view train locations.
Banbury                          Railtrack Midlands        2002
Wellington                       Railtrack Midlands        Current                                                           Fringe Box unit mounted on the block shelf of
Wolverhampton                    Railtrack Midlands        Current
                                                                                                                             a mechanical signal box

				
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Description: The Westinghouse Standard Train Describer The Westinghouse Small