EKINOX 2 Subsea
– Hardware Manual
EKINOX2SUBSEAHM.1.2
4.3.3. GNSS connection in RS-232 mode
For this typical connection, a shielded AWG 26 cable should be used. Depending on PPS signal strength, we
do not recommend this cable to measure more than a few meters. For long distance, PPS signal and GPS
NMEA signals should be separated in two cables for better noise immunity.
4.3.4. Triggering external devices with the sync Out
Consider a camera that must take a picture when an event is provided on Event Out pin. Event Out and Sync
Out are “open drain” outputs, which means a pull up resistor must be used on receiver side, as shown on the
diagram.
20/34
Figure 4.4: Typical wiring diagram for Ekinox M / U with external GNSS receiver
Ekinox
GND
PORT B Sync
PORT B Rx
GPS
GPS Tx
PPS
GND
Figure 4.5: Sync Out connection with pull up resistor
Ekinox
GND
Event Out
Camera
Event In
GND
R
VCC < 20V
Pull up resistor must be connected
to Event Out to define High level
