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5.5.2 Extended self-test
The extended self-test includes a GNSS test in addition to the normal self-
test. To perform the extended self-test, do the following 3 steps within a
period of 3 seconds:
1 2 3
1. Move the switch to test position
2. Release to middle position
3. Move the switch to test position and release when the white test
indicator lights up.
The white test indicator light will light up and the green GNSS indicator light
will start blinking in sequences of 3 fast blinks. This indicates that the EPIRB
is searching for a validated position.
When a valid position is found the green GNSS indicator light will remain lit
for approximately 1 second and a normal self-test will continue.
The top light will flash once at the end of the text if the extended self-test is
successful.
If the self-test detects a fault in the EPIRB module, the test indicator light
will start blinking at the end of the test. For fault codes see the table in
section 5.5.3.
Note that the extended self-test can only be performed 60 times. After that
the self-test will indicate “Maximum number of extended self-tests
exceeded”.