GNSS Module Series
LC76G_Series_EVB_User_Guide 13 / 33
3.2. EVB Interfaces
The EVB interfaces are detailed in the table below.
Table 3: Detailed EVB Interfaces
Function
Interfaces
Description
Power Supply
J509
USB to UART
Power supply input:
DC power supply: 4.5–5.5 V, Typ. 5.0 V
Current capability should be > 100 mA
Communication
Interface
J509
USB to UART
Supports RTCM and standard NMEA
message, PAIR/PQTM message and binary
data, and firmware upgrade.
SMA Connectors
J103
Antenna connector
Used for connecting GNSS antenna.
U512
1PPS connector
Used for testing 1PPS signal.
Signal Indication
D514
Indication LEDs
POWER
(Red)
Bright: EVB is powered well.
Extinct: EVB is not powered.
VCC
(Green)
Bright: Module is powered well.
Extinct: Module is not powered.
D520
Indication LEDs
1PPS
(Red)
Flashing: Successful position fix.
Frequency: 1 Hz.
Extinct: No position fix.
TXD
(Green)
Unsupported.
Switches and Buttons
S201
Module power switch
Powers the module VCC on/off.
S503
RESET
Short press the button to reset the module.
The J402 test point of LC76G EVB is shown below:
