Navsight Solution
– Hardware Manual
NAVSIGHTHM.1.4
5.9. SYNC OUT B
SYNC Out B is the main synchronization output interface. Directly accessible on the back panel through a
standard BNC connector. It can operate in two different ways:
●
Main loop divider: This event is activated at the sensor sample time, but its frequency is divided by
the output divider. If the divider is set to 4, pulse output frequency will be 200Hz / 4 = 50Hz.
●
PPS: This simple output is synchronized with each top of UTC seconds. Validity should be checked by
parsing the UTC messages status.
●
Virtual odometer. This output generates a pulse each X meters of travel, depending on user
configuration.
5.9.1.1. Electrical specifications
Parameter
Conditions
Min.
Typ.
Max.
Units
PPS output
Low level output voltage
0
0.1
0.55
V
High level output voltage
3.8
4.9
5
V
Output Current
-30
-
30
mA
5.10. SYNC In A, B, C, D and E
Each serial interface is associated with a synchronization input signal. The Sync IN pins can be used for
various functions:
●
Output log trigger: All pulses received generate events that can generate specific Logs output. Any
output log can be triggered by an event pulse. Navsight can handle up to 200Hz triggers.
●
Event Marker: Events up to 1kHz are supported on each pin.
●
PPS input
●
External aiding data time-stamping
See section PORT A Interface for details about each pin-out and electrical specifications.
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