Javad JNSGyro-4T Operator's Manual page 61

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• Pressing the FN key for less than one second switches the boards
between different
information), or between static and dynamic post-processing modes,
depending on the boards' configuration.
During the first second of pressing the FN key, the REC LED is orange.
• Pressing the FN key for more than one and less than five seconds will
start/stop data recording.
During data recording the REC LED is green or orange.
If the REC LED is red, the board has run out of memory, has a hardware
problem, or contains an improper OAF (see "Option Authorization File
(OAF)" on page 1-12 for more information on OAFs).
• The REC LED blinks green or orange each time data is written to the
internal board's memory.
You set the data recording time interval using PCView. See "Recording
Interval parameter" on page 2-21 for information on setting this
function.
Each time you turn off or on data recording, either a new file opens or
data appends to a particular file. See "Always Append to the File
parameter" on page 2-22 and "Files Creation Mode parameter" on
page 2-22 for information on setting this function.
• Pressing the FN key for more than five and less than eight seconds will
turn the baud rate of serial port A to 9600. After about five seconds of
pressing the FN key, the REC LED becomes red. Release the FN key
while the REC LED is red (during the next three seconds).
Pressing the FN key for more than eight seconds has no impact.
• After loading new firmware or clearing the board's NVRAM, the board
checks its internal file system.
During this operation, the REC LED flashes orange, and the file system
is not accessible for CDU (control display unit) applications or for data
recording. This operation may require from fractions of a second to
several minutes, depending on the circumstances and the amount of
internal memory.
information modes
JNSGyro-4T Operator's Manual 4-3
O P E R A T I O N
Using MinPad
(normal and extended