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Trimble R7/R8 GPS Receiver User Guide 125
General Operation 14
Trimble R8 Operation
14.2 Button Functions
The Trimble R8 receiver has only one button, the Power button,
represented in this manual by p. Use p to switch the receiver on or
off, and to perform other functions, as described in Table 14.1.
Note – The term “press” indicates that you should press the button
and release it immediately. The term “hold” indicates that you should
press the button and hold it down until the time indicated has elapsed.
14.3 LED Behavior
The three LEDs on the front panel of the receiver indicate various
operating conditions. Generally, a lit or slowly flashing LED indicates
normal operation, a LED that is flashing quickly indicates a condition
that may require attention, and an unlit LED indicates that no
operation is occurring. The following table defines each possible LED
state.
Table 14.1 Power button functions
Action Power button
Turn the receiver on Press
Turn the receiver off Hold for 2 seconds
Delete the ephemeris file Hold for 15 seconds
Reset the receiver to factory defaults Hold for 15 seconds
Delete application files Hold for 30 seconds
The term … means that the LED …
Slow flash alternates on/off for 500 milliseconds.
Fast flash alternates rapidly on/off for 100 milliseconds
On is lit steady
Off is unlit