Comtech EF Data SNM-1000 - Manual (Page 101)

SNM-1000 Node Control Modem Revision 3
Operation MN/SNM1000.IOM
3–59
CAUTION
Selecting any menu selection other than “F4” may cause unpredictable
operation of the SNM-1000.
3.7.13.1 Help Screen
To display the menu selection for the Comtech EF Data diagnostics, select menu option
“F1” by entering an ANSI F1.
3.7.13.2 Flash Updates
Select menu option “F2” by entering an ANSI F2. This will begin the flash update
procedure, causing the User Port to display:
> > Xfer Control to Flash Loader
READY FOR FLASH CODE. START ASCII UPLOAD WITH S/W FLOW CONTROL
USE ctrl z KEY TO COMPLETE THE DOWNLOAD OR ctrl c TO ABORT
The SNM-1000 then waits for an Intel hex format software download properly terminated
with an end of record marker.
Using the ASCII file upload utility on the PC terminal emulation program, upload the
appropriate Intel hex file. The User Port will display the following progress messages as
the update proceeds:
Sending Flash Setup Commands ...
Erasing sector
Sending Flash Setup Commands ...
.............................................................................................
When the file transfer to the SNM-1000 has completed, enter ‘CTRL Z’ from the PC
terminal program.
Note: Making any entry other than ‘CTRL Z’ will cause a failure of the file transfer.
If the SNM-1000 FLASH update is successful, the User Port will display:
Flash programming complete
The SNM-1000 will reset and begin to execute SNM-1000 operational code.