Go to Contents Precise Time and Frequency, Inc., 50L Audubon Road, Wakefield, MA 01880, USA ptf 3207A rev G
Tel: +1-781-245-9090 e-mail: info@ptfinc.com www.ptfinc.com pg. 45
If the instrument could not find the file, or the upgrade failed for some other reason, the front panel
will display;
UPGRADE FAILED!
At this point, power should be removed from the unit for a least 10 seconds, and the unit should then
be re-powered.
Once the unit re-powers and initializes, a message will be temporarily (for 3 seconds) shown on the
front panel display, either:
UPGRADE SUCCESS! or UPGRADE FAILED! dependent upon whether the upgrade was successful or
not.
NOTE: If the upgrade process repeatedly fails, it could well be that the TFTP transfer is being
blocked by your computer's firewall.
To correct this follow the instructions shown in Appendix B (written for a Windows 7
machine)
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