Specifications

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strategically throughout the vehicle to minimize wire length. For ease of maintenance, all electrical
distribution centers shall be easily accessible. All distribution centers containing fuses, circuit breakers
and/or relays shall be easily accessible.
Distribution centers located throughout the vehicle shall contain battery powered studs for supplying
customer installed equipment thus providing a lower cost of ownership.
Circuit protection devices, which conform to SAE standards, shall be utilized to protect electrical
circuits. All circuit protection devices shall be rated per NFPA requirements to prevent wire and
component damage when subjected to extreme current overload. General protection circuit breakers
shall be Type-I automatic reset (continuously resetting). When required, automotive type fuses shall
be utilized to protect electronic equipment. Control relays and solenoid shall have a direct current
rating of 125 percent of the maximum current for which the circuit is protected per NFPA.
SOLID-STATE CONTROL SYSTEM Bidder Complies: Yes ( ) No ( )
A solid-state electronics based control system shall be utilized to achieve advanced operation and
control of the vehicle components. A fully computerized vehicle network shall consist of electronic
modules located near their point of use to reduce harness lengths and improve reliability. The control
system shall comply with SAE J1939-11 recommended practices.
The control system shall operate as a master-slave system whereas the main control module instructs
all other system components. The system shall contain patented Mission Critical software that
maintains critical vehicle operations in the unlikely event of a main controller error. The system shall
utilize a Real Time Operating System (RTOS) fully compliant with OSEK/VDX™ specifications providing
a lower cost of ownership.
For increased reliability and simplified use the control system modules shall include the following
attributes:
Green LED indicator light for module power
Red LED indicator light for network communication stability status
Control system self test at activation and continually throughout vehicle operation
No moving parts due to transistor logic
Software logic control for NFPA mandated safety interlocks and indicators
Integrated electrical system load management without additional components
Integrated electrical load sequencing system without additional components
Customized control software to the vehicle's configuration
Factory and field reprogrammable to accommodate changes to the vehicle's operating parameters
Complete operating and troubleshooting manuals
USB connection to the main control module for advanced troubleshooting
To assure long life and operation in a broad range of environmental conditions, the solid-state control
system modules shall meet the following specifications:
Module circuit board shall meet SAE J771 specifications
Operating temperature from -40C to +70C
Storage temperature from -40C to +70C
Vibration to 50g