User`s guide

Chapter 5 - I/O Commands
SYSTEM POWER-ON FAILURE
Applicability: M12+ Positioning and Timing Receivers
Immediately after power-up, the M12+'s ROM is tested. If this test does not pass, the firmware
will not execute its positioning algorithms. Rather, it will continuously output this message once
every 10 seconds. Receipt of this message indicates that the receiver will need to be repaired
and/or reprogrammed. This feature keeps the receiver from being utilized when the ROM has
been compromised, and therefore unreliable, helping to protect the integrity of the application.
Legacy Code Compatibility: The @@Sz command was implemented in a similar fashion on
Motorola GT+, and UT+ Oncore receivers.
Motorola GPS Products - M12+ User's Guide Revision 6.X 09FEB05
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