Bus Failure Messages

Short to Battery  - Either or both of the bus wires are shorted to the battery potential or a specific ground may be open.

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 lost connection with all of its terminators.

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 termination and/or 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 DRBIII® cannot communicate over the bus and does not know why.