EVK-R4 - User guide
UBX-16029216 - R07
Starting up
Page 10 of 31
C1-Public
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
J109
ADP-R42
Cellular power on
Push button to switch on / off SARA-R410M /-R412M modules
Push button to switch on / off / reset SARA-R422M8S modules
SW302 EVB
Cellular reset
Push button to abrupt switch off the SARA-R410M /-R412M modules
SW303 EVB
Cellular UART detach
Slide switch to attach / detach the cellular module main primary UART from the
USB / RS232 connectors on EVB-WL3
SW401 EVB
Cellular UART routing
Slide switch to select cellular module main primary UART routing on the USB or
RS232 connector on EVB-WL3
SW403 EVB
Cellular UART routing
3-pin header to route and make accessible the UART(s) of SARA-R42 modules
over the USB connector on the ADP board, or over the USB or RS232 connectors
on the EVB-WL3, or over the DIL B2B connector on the top of the ADP board
J248
ADP-R42
Cellular GPIO detach
Slide switch to attach / detach the cellular module GPIOs from peripherals:
when detached, the signals are available only on the DIL B2B connector on the
ADP board
SW300 EVB
Cellular GNSS detach
2
Slide switch to attach / detach the cellular module to / from the GNSS module
(GPIO2-3-4): when detached, the signals are available only on the DIL B2B
connector on the ADP board
SW304 EVB
GNSS V_BCKP
Slide switch to connect / disconnect backup battery to / from the V_BCKP pin of
the GNSS module
SW204 EVB
Table 1: EVK-R4 switch and button descriptions
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 USB
(main UART)
USB cable plugged in the
Cellular USB
connector (J501) for access to
the main UART interface of cellular module
DL501 EVB
Cellular USB
(main UART)
Green light is on when the SW401 is in “on
-
board” position, and when
the cellular module main UART is routed to the
Cellular USB
connector
Red light blinks at UART TX or RX data on the
Cellular USB
connector
DL403 EVB
Cellular main UART
attach/detach
UART signals of the cellular module are available only on the ADP
board.
DL404 EVB
Cellular RS232
(main UART)
Green light is on when the main UART of the cellular module is routed
to the
Cellular RS232
connector (J500)
Red light blinks at UART TX / RX data on the
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
SARA GNSS Timepulse SARA-R422M8S GNSS TimePulse output
DS139 ADP-R42
Cellular native USB
USB cable plugged in the
Cellular native USB
connector (J104 / J105)
on the ADP-R4, for access to the USB interface of cellular module
DS100 ADP-R4x
2
For EVK-
R422M8S it is recommended to keep this switch on “detach” position.