FMB640 J1708: Difference between revisions
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| [[File:Alert.png|left|link=|50px]] || <b>NOTE: Most of the Volvo trucks need an J1708 connection to be able to receive fuel level data</b> | | [[File:Alert.png|left|link=|50px]] || <b>NOTE: Most of the Volvo trucks need an J1708 connection to be able to receive fuel level data</b> | ||
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[[Category:FMB640 Manual]] | |||
Revision as of 08:06, 21 October 2019
Main Page > EOL Products > FMB640 > FMB640 Manual > FMB640 J1708SAE J1708 is a standard used for serial communications between ECUs on a heavy duty. The hardware utilized are RS-485 transceivers wired for open collector operation through the use of a pullup and pulldown of the separate data lines.
With FMB640, J1708 functionality is used to read vehicle's Fuel Level and Fuel consumption.
Because J1708 is not a CAN BUS protocol, FMB640 CAN1 and CAN2 lines cannot be used to read J1708 information. FMB640 has a special J1708 Port, which utilizes RJ9 4P4C connector.
Software Configuration of FMB640 with J1708
Firmware version: 00.00.11 or above Configurator version: 0.13.35.29297 or above
J1708 configuration is done in FMS IO Tab.
When J1708 is enabled as Fuel Level source, Fuel related data will be taken from J1708 line, FMS Fuel data will be ignored.
Connection with Vehicle port
J1708 connector is not supported by all vehicles. Only VOLVO, RENAULT and American truck manufacturers implement J1708 connector.
Trucks utilizes Deutsch 9-PIN connector, which is used to connect FMB640 to J1708.
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NOTE: Most of the Volvo trucks need an J1708 connection to be able to receive fuel level data |