Communication lost

[Al Skierkiewicz]

Originally Posted by Flak-Bait

When we drive, our battery voltage drops from about 12.7 to about 9 or 10. Would that be normal, or is that enough to re-boot the cRIO/D-Link? Another thing, with ours, if you leave it for a bit, comm will come back. We've tried different batteries and it happens with all of them.

Brandon,
As Alan said, this is normal. However, short term dips in the battery voltage don't always show up on the dashboard because they are so short. They sometime occur between samples. That being said, the 5 volt regulator that feeds the Dlink will drop out around 7 volts. That is why it must be connected to the boosted +12 volt radio output of the PD. This power supply continues to put out +12 volts until the battery falls to 4.5 volts or less. However, when the Dlink reboots due to low voltage, the reboot time is 50 seconds. If you know exactly how long your outage lasted, we can determine more accurately the exact cause.