Bus Failure Message

Bus Failure Messages
Short to Battery - Either or both of the bus wires are shorted to the battery potential.


Short to 5 Volts - Either or both of the bus wires are shorted to a 5-volt potential.


Short to Ground - Either or both of the bus wires are shorted to ground.


Bus (+) & Bus (-) Shorted Together - The two bus wires are shorted together.
No Termination - The bus system has not lost connection with its terminator.


Bus Bias Level Too Low - Either or both of the bus wire potentials are significantly below their normal 2.5 volts.


Bus Bias Level Too High - Either or both of the bus wire potentials are significantly above their normal 2.5 volts.


No Bus Bias - The bus system has lost connection with the VTSS module which provides bias. Bus (+) Open - The bus (+) wire has lost connection with termination and/or bias


Bus (-) Open - The bus (-) wire has lost connection with termination and/or bias.


Not Receiving Bus Messages Correctly - The DRB cannot communicate over the bus and does not know why.