Specifications

December 2013
REQUEST FOR PROPOSALS FOR
PURCHASE AND DELIVERY OF HEAVY-DUTY BUSES
RFP SRTA-2014-01
TECHNICAL SPECIFICATIONS
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capability to integrate with a real time communications network. In the event of an emergency
causing a vehicle to lose communication links to the network VLU shall allow all on-board data to
be retained locally on the bus.
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The VLU shall be designed with forward looking, state-of-the-art technology and modularity. The
VLU shall be designed to support easy installation and replacement. This design shall allow the
VLU to withstand the harsh elements of the public transportation environment. A strong body
casing shall protect against falling dirt, rain, sleet, snow, wind blow dust, vibration, pressurized
hose-directed water, corrosion, extreme temperature variations, and external formation of ice.
The VLU shall have a secure lock on the access door requiring a unique key to help protect the
VLU from theft. The VLU systems minimum functions, power management, environmental, and
capability requirements are summarized below:
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Function and Design
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 Single point logon
 15 Year design life
 Real time voice & data communications
 Smart bus technology
 Replaceable and upgradeable solid state storage
 Support for full color LCD touch mobile data terminal
 Navigation with GPS, odometer, gyroscope, and map matching
 X86 and Windows XP compatibility
 Non-volatile data storage and collection
 Secure Wireless (WPA2) uploading/downloading employing WLAN security, updates, and
uploads
 Network routing and dynamic IP addressing
 SAE J1939 (CAN) and J1708 interfaces
 Radio interface with handset, EA and covert microphone
 I/O & multiplex system Interface
 PA system with a minimum of 3x 30 watt amps and driver speaker amp
 Automatic volume control for at least 4 zones
 LED display for maintenance and diagnostics
 Power supply conditioning and management
 Compliance with SAE J1455 for environmental conditions
 Commercial, off-the-shelf component expansion
Power Management
 35 Watts Nominal Power Draw
 1.5 Amp @ 24Vdc Current Draw 18 Vdc to 48 Vdc Input Voltage
 Overvoltage Protection
 Reverse Protection
 Short Circuit Protection
 Dedicated Power Management Micro
 Protected from Ignition Interruption
 Programmable Delayed Shutdown
 Low Voltage Detect & Auto Shutdown
 Hardware/Software Watchdog
 Application Watchdog
Passenger Information