Meinberg PZF510 - Manual (Page 16)

16
Firmware updates
Whenever the on-board software must be upgraded or modified, the new firmware can
be downloaded to the internal flash memory via the serial port COM0. There is no
need to remove the board to insert a new EPROM.
If the 'Menu' key on the front panel is pressed or the pin '/BOOT' at the blade-
connector strip is held at TTL-low level while the system is powered up, a bootstrap-
loader is actived and waits for instructions from the serial port COM0. The new
firmware can be sent to PZF510 from any standard PC with serial interface. A loader
program will be shipped together with the file containing the image of the new
firmware.
The contents of the program memory will not be modified until the loader program
has sent the command to erase the flash memory. So if the 'Menu' key is pressed
unintentionally while the system is powered up, the firmware will not be changed
accidentially. After the next power-up, the system will be ready to operate again.
Replacing the lithium battery
The life time of the lithium battery on the board is at least 10 years. If the need arises
to replace the battery, the following should be noted:
ATTENTION!
Danger of explosion in case of inadequate replacement of
the lithium battery. Only identical batteries or batteries
recommended by the manufacturer must be used for
replacement. The waste battery must be disposed as pro-
posed by the manufacturer of the battery.
CE label
This device conforms to the directive 89/336/EWG on the approxi-
mation of the laws of the Member States of the European Communi-
ty relating to electromagnetc compatibility.