]
TERSUS-GNSS 2
Figure 2 BX316R board block diagram
RF module: Receives GNSS signals from the primary and the secondary antennas, sends to
baseband module as IF signal after filtering and low noise amplifying.
Baseband: Demodulates GNSS IF signals into navigation message.
MPU: A microprocessor for PVT calculation, differential position processing, and data transfer to
and from peripherals.
IMU: an on-board 6 axis IMU can provide motion tracking information under obstacles
environment where GNSS signal is lost.
I/O interface: Includes two serial ports, an Ethernet port, event mark and power supply etc.
1.4
Connectors and Indicator Locations
The following connectors are installed on the board:
Two SMA connectors, which are used for RF signals input and power output to the LNA in
the active antennas. P-Ant is connected to the primary and S-Ant to the secondary antennas.
If only one antenna is used, connect it to P-Ant and S-Ant is float.
Four LEDs to show the status of the board, see Table 1 LED definition for the definition.
Universal comm-port
1
, a 40-pin connector is used to communication between the receiver
and a computer or a controller. Two serial ports, two CAN ports, event input, PPS output and
an Ethernet are included in this connector, see Figure 9 for more detail.
Power connector for power input, see Figure 8 for detail about the power cable.
Data log button
1
, press to log the data to the SD card.
SD card slot
1
, max 32G Micro SD card is supported.
Reset button
1
. Reset the receiver anytime this button is pressed. The function is the same as
input „RESET‟ command to the receiver, see Log and Command reference manual for more
about this command.
Note 1 Contact Tersus support for more about these connectors.
RF module
GNSS
De-modulator
MPU
I/O
P-Ant
IMU
S-Ant
