EVK-L2 - User Guide
UBX-14000422 - R10
Starting up
Page 8 of 30
1.3
Switches, jumpers and buttons
Function
Description
Name
Board
Main Power Switch
Power on / off of the whole evaluation kit
SW400
EVB
Cellular VCC
Jumper socket to provide the 3.8 V supply to the cellular module VCC input
J404
EVB
Cellular Power-on
Push button to switch-on the cellular module
SW302
EVB
Cellular Reset
Push button to reset the cellular module
SW303
EVB
Cellular UART detach
Slide switch to attach / detach cellular module UART from USB / RS232 connectors:
when detached, UART signals available only on DIL B2B connector on ADP board
SW401
EVB
Cellular UART routing
Slide switch to select cellular module UART routing on USB or on RS232 connector
SW403
EVB
Cellular GPIO detach
Slide switch to attach / detach the cellular module GPIOs, SIM_DET from peripherals:
when detached, the signals are available only on the DIL B2B connector on ADP board
SW300
EVB
Cellular GNSS detach
Slide switch to attach / detach the cellular module to the GNSS module (GPIO2-3-4):
when detached, the signals are available only on DIL B2B connector on ADP board
SW304
EVB
GNSS V_BCKP
Slide switch to connect / disconnect backup battery to V_BCKP pin of GNSS module
SW204
EVB
Table 1: EVK-L2 switches and buttons description
1.4
LEDs
Function
Description
LED #
Board
Color
Main Power
Power supply plugged in the
9 - 18 V Power Input
DL401
EVB
Cellular VCC
Cellular module supplied.
Main Power Switch
must be switched on
DL400
EVB
Cellular native USB
USB cable plugged in
Cellular native USB
connector
DS100
ADP-L2
Cellular USB
USB cable plugged in
Cellular USB
connector for UART access
DL501
EVB
Cellular USB / UART
Green light is activated when UART is routed to
Cellular USB
connector
Red light blinks at UART TX or RX data on
Cellular USB
connector
DL403
EVB
Cellular UART detach
UART signals are available only on the DIL B2B connector on ADP board
DL404
EVB
Cellular RS232 / UART
Green light is activated when UART is routed to
Cellular RS232
connector
Red light blinks at UART TX or RX data on
Cellular RS232
connector
DL405
EVB
Cellular RI indicator
RI line turns ON (active low)
DS501
EVB
Cellular CTS indicator
CTS line turns ON (active low)
DS500
EVB
Cellular GPIO1 indicator
Green light is activated when cellular GPIO1 is high
DS107
EVB
Cellular GPIO2 indicator
Green light is activated when cellular GPIO2 is high
DS105
EVB
Cellular GPIO3 indicator
Green light is activated when cellular GPIO3 is high
DS109
EVB
Cellular GPIO4 indicator
Green light is activated when cellular GPIO4 is high
DS103
EVB
Wi-Fi indicator
Green light is activated when there is Wi-Fi activity
DL401
ADP-L2
GNSS VCC supply
GNSS module supply is turned ON
DS118
ADP-GNSS
GNSS USB
USB cable plugged in
GNSS USB
connector
DS124
ADP-GNSS
GNSS Timepulse
Pulses at 1 Hz when valid GNSS fix
DS121
ADP-GNSS
Cellular / GNSS DDC
Cellular / GNSS module communication over DDC (I
2
C) interface
DS132
ADP-GNSS
Table 2: EVK-L2 LEDs description
