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EVK-L4 - User Guide
UBX-17013792 - R01
Starting up
Page 7 of 23
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
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 UART0 detach
Slide switch to attach / detach cellular module UART from the USB / RS232 connectors:
when detached, UART signals available only on the DIL B2B connector on the ADP board
SW401
EVB
Cellular UART0 routing
Slide switch to select cellular module UART routing on the USB or on the RS232 connector SW403
EVB
Cellular UARTx detach
Slide switch to attach / detach cellular module UARTx from the USB connector: when
detached, UARTx signals available only on the DIL B2B connector on the ADP board
SW510
EVB
Cellular UART1 jumpers
Jumper sockets to attach / detach cellular module UART1 interface to UARTx signals
available on the DIL B2B connector on the ADP board
J107
ADP-L4
Cellular UART2 jumpers
Jumper sockets to attach / detach cellular module UART2 interface to UARTx signals
available on the DIL B2B connector on the ADP board
J108
ADP-L4
Cellular UART3 jumpers
Jumper sockets to attach / detach cellular module UART3 interface to UARTx signals
available on the DIL B2B connector on the ADP board
J109
ADP-L4
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 the 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 the ADP board
SW304
EVB
GNSS V_BCKP
Slide switch to connect / disconnect backup battery to V_BCKP pin of the GNSS module
SW204
EVB
Table 1: Description of EVK-L4 switches and buttons