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APS-8M / APS-16M Asynchronous Port Switches; User’s Guide
4. Use your communication program’s (e.g. HyperTerminal’s) upload
function to transfer the upgrade firmware to the 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-8/16M will prompt the user to
continue the upgrade or abort.
a) Upgrade: To continue with the upgrade, type 1 and press [Enter].
APS-8/16M 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-8/16M until the RDY indicator blinks to indicate the process is
complete.
Note: Do not turn off power to the APS-8/16M unit while the
upgrade is in process.
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-8/16M 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-8/16M 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.