Meinberg GEN170TGP, Руководство по эксплуатации

Страница: 14 / 30

14
INIT USER PARMS
This menu lets the user reset all configurable parameters to default values. Before
initialization is done, the user must press CLR/ACK once more to acknowledge.
Resetting Factory Defaults
If both the NEXT key and the INC key on the front panel are pressed while the system
is powered up the battery buffered memory is cleared and user definable parameters are
reset to factory defaults. The key should be held until the root menu is displayed on LCD.
Attention: If the GEN170 module is assembled as one part of a larger equipment then
the default parameters may not be appropriate for the rest of the equipment. Please check
the new settings and make sure they match the settings required for the complete system.
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 open the metal case and insert a new EPROM.
If the MENU key on the front panel is pressed while the system is powered up, a
bootstrap-loader is activated and waits for instructions from the serial port COM0. The
new firmware can be uploaded 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
accidentally. After the next power-up the system will be ready to operate again.