GNSS Module Series
LG69T(AA,AD)_EVB_User_Guide 12 / 31
3.2.
Board User Interfaces
The EVB interfaces are detailed in the table below.
Table 3: Detailed EVB Interfaces
Function
Interfaces
Description
Power Supply
J101
POWER_5V
Power supply input:
⚫
DC power supply: 4.5
–5.5 V, typ. 5.0 V.
⚫
Current capability should be > 1 A.
Communication
Interface
J201
USB_UART
Enhanced COM Port
: Used for configuring the
modules, firmware upgrade, and NMEA/RTCM
message output.
Standard COM Port
: No message input/output,
reserved for future use.
RF Input
J401
LG69T_ANT
Antenna Connector
The antenna in the kit supports:
⚫
GPS/QZSS L1 C/A and L5
⚫
Galileo E1 and E5a
⚫
BDS B1I and B2a
⚫
SBAS
*
L1
Signal Indication
D309
TXD/1PPS
indication LED
1PPS
(Red LED)
Flash: Outputs pulse signal of 1 Hz.
Extinct: 1PPS is unavailable.
TXD
(Green LED)
Flash: Message output from UART1 TXD.
Extinct/Bright: No message output from UART1
TXD.
D109
5 V/3.3 V
Indication LED
3.3 V
(Red LED)
EVB 3.3 V power indicator.
5 V
(Green LED)
EVB 5 V power indicator.
D310
GEO_F
Indication LED
GEO_F
(Red LED)
Geofence indicator.
Switch
and
Buttons
S101
Power Switch
Power the EVB on/off.
S201
RESET_GNSS
Short press the button to reset the modules.
S202
BOOT_GNSS
Press and hold the button first and then flip the
power switch to
ON
position to make the modules
enter Boot download mode.
Test Points
J501
Pins are detailed in
Table 4
below.
