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Access Controllers
2
4101-3 (ACC-Granta)
2.4.4 Recovering a Non-responsive Board
28 | 38
Try the X992 jumper option first. If this does not work, it is possible to restore a
board completely to factory settings.
Note: This requires that the cover be removed from the Controller and a SD card.
The SD card must be a plain SD card, 2GBytes or less. SDHC cards will not work.
CCP2 SD Card must not be used on Granta controller as it may make it
inoperable.
1. Unzip the ZIP file for example, (
directory.
2. Copy ALL the files to a good quality SD card of at least 32 Megabytes in size.
SanDisk and Lexar have both been tested and found to be good. A no
name brand was mostly OK, but would sometimes fail. Make sure a file
called "boot.bin" is present in the top directory of the SD Card.
3. Plug the SD card into the Controller, while it is powered off.
4. Place a jumper on Jumper X-120, and power up the Controller.
–
If the Controller was manufactured before 2012, Press the reset button
once for at least a second and then release.
–
If the Controller was manufactured in 2012 or later, the reset button need
not be pressed.
5. Watch the LEDs at the base of the SD card socket. The orange Error and
green COM and USB LEDs should be flashing in a cycle while the board is
being reprogrammed. When the LEDs stop flashing, programming is complete.
6. Power off the board, remove jumper X-120 and remove the SD card.
Note:
●
SD Card reprogramming will not modify the MAC address or other
manufacturing data.
●
The IP address will be set to the default value of 192.168.1.250, and that the
SSH server will be running on port number 10022.
acc-granta_2.70.xx_sdcard.zip
) into its own
A6V11164550
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