User's Manual

21
4.1 Home
Spin Rate of the motor (revs per minute) = frame rate (Hz) * 60
GPS (PPS) Status
Lock
LiDAR’s internal clock is in sync with the GPS
Unlock
Not in sync
NMEA (GPRMC/GPGGA) Status
Lock
After receiving a valid NMEA message
Unlock
Not receiving a valid NMEA message
PTP Status
Free Run
No PTP master is selected; only the LiDAR’s clock is
used
Tracking
Slaveis tryingtosync with theselectedPTP Master,
but the offset is more than 1 μs
Locked
Offset between the Slave and the Master is below 1 μs
Frozen
(Holdover)
LiDAR has lost connection tothe PTP master and is
attempting to recover it.
Meanwhile,LiDAR starts drifting from the previous
clock; when drifting out of specifications, it goes back
to the Free Run mode.