Recovering factory defaults

Recovery returns the controller to the state it was in when it shipped from the factory.

NOTE: Recovering factory defaults removes all platform and station data in the controller.

A couple of scenarios for which you might choose to restore factory defaults are:

While commissioning a brand new JACE, you make an error entering the default platform daemon credentials or passphrase. The result is that you cannot commission the controller. In this scenario, your only recovery option is to restore the factory defaults.
When decommissioning a JACE, a best practice to follow is recovering the factory defaults in order to wipe all of the platform and station data in the controller.

The figure with numbered call-outs, shown here, indicates the position of USB ports and switches behind the access door.

1	PROG	USB 2.0 for use with USB Flash (thumb) drive
2	DEBUG	Micro-A USB for serial debug communications
3	BACKUP	Pushbutton switch to start a USB backup, or if held in during power up/boot up, initiates a factory recovery image
4	SHT/DWN	Recessed pushbutton switch for initiating a controlled shutdown
5	BACKUP	LED to indicate USB media present, or a backup, restore, or factory recovery image in progress.

The DEBUG port is a standard Micro-A type USB port for serial debug communications to the controller.

NOTE: Starting in Niagara 4.2, the JACE-8000 can be converted (downgraded) to run AX-3.8U1–with some feature limitations. For example, for any JACE-8000 running AX the USB functionality is not supported. In this configuration the USB port on the device is not monitored for insertion/removal of devices.

For more details, see “About JACE System Shell mode”.

NOTE: Login requires administrator level platform credentials.
The SHT/DWN pushbutton initiates a “controlled shutdown” of the controller, ensuring that all station data is preserved.

Perform the following steps:

Ensure that the controller’s power is off.
Hold the Backup button for at least five seconds as you power up the controller.
The Backup LED flashes at medium speed (100 mS on, 100 mS off).
Release the Backup button.
If you held the button for at least five seconds with no USB flash drive in the USB port, after 10 seconds the boot process defaults to recovery mode. Upon entering recovery mode, the boot process overwrites the controller with a default factory image. During this process the Backup LED flashes at slow speed (one second on, then one second off).

CAUTION: Once in recovery mode (BACKUP LED is flashing in “working mode” pattern, 1s On/1s Off, or slow blink), do not interrupt the process. Allow the recovery to complete or the controller could be left in an inoperable state.
When the Backup LED stops flashing, turn the controller’s power off and back on again.