User`s guide

4. Use your communication program's (e.g. HyperTerminal's)
upload function to transfer the upgrade firmware to the
APS-8M unit. Select ASCII file format, and then specify
the filename and directory location where the firmware
upgrade file resides.
Note: The Upload function will time-out after one
minute of inactivity. If the function times out, type 1
and press [Enter] to continue, or press [Esc] to abort.
5. If the upload is successful, the APS-8M will prompt the
user to continue the upgrade or abort.
a) Upgrade: To continue with the upgrade, type 1 and
press [Enter]. APS-8M will erase the previous
firmware, move new firmware from data flash to
program flash memory, calculate and store the new
checksum, and reboot. Do not attempt to reconnect to
the APS-8M until the RDY indicator blinks to indicate
the process is complete.
b) Abort: To abort the procedure, type 2 and press
[Enter].
6. Incomplete Upload: If the upload is interrupted, times-
out, or if the file is corrupted during transfer, the APS-8M
will display a screen which asks for user confirmation
before proceeding. To proceed, type 1 and press [Enter],
then return to Step 4 above.
7. Emergency Recovery: In the rare event that the APS-8M
operating system becomes corrupted during installation,
front panel indicators will blink five times and the unit will
automatically switch to Emergency Recovery Mode.
Please contact WTI Customer Service for further
instructions.
When firmware upgrades are available, WTI will provide the
necessary files via modem or mailed diskette. At that time, an
updated Users Guide or addendum will also be available.
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APS-8M User’s Guide