Meinberg PZF511 - Manual (Page 24)

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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 PZF511 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 unintentio-
nally 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 batte-
ries recommended by the manufacturer must be used for
replacement. The waste battery must be disposed as
proposed by the manufacturer of the battery.
CE Label
This device conforms to the directive 2004/108/EG on the
approximation of the laws of the Member States of the European
Community relating to electromagnetc compatibility.