RTU appears either dead or "locked up"

 

When the unit is behaving properly, there is a system watchdog that will automatically reboot the unit when it is dead for 90 seconds. If this feature is not performing, it may become necessary to cleardown the unit to its factory defaults. Under certain unusual circumstances, data in certain register locations within the Catalyst's flash memory module may become corrupted.  If this occurs, the RTU may lock up or behave erratically. 

 

 

After reformatting is complete: