EVK-R5 - User guide
UBX-19042592 - R09
Starting up
Page 6 of 24
C1-Public
The USB interface of the cellular module (available for diagnostic purpose only) is available on the
native USB connector (J105) mounted on the cellular adapter board.
Other SARA-R5 series peripherals are available on the dual-in-line male board-to-board connectors
(J103, and J104) and the 2-pins header connector (J107) provided on the top layer of the cellular
adapter board.
The lower board (EVB-WL3) is also designed to be used with other u-blox cellular adapter boards. It
contains additional switches, jumpers, connectors, LEDs and parts that may be only partially
described in
or in this document, because they are intended for use only with other u-blox
cellular modules. It is recommended to leave any additional connector unconnected and any additional
switch in its default configuration.
J248
Pin 1
J248
Pin 3
J107
Pin 1
Figure 3: 3-pin header J248 available to set the routing of the UART interfaces on the EVK for SARA-R5 series modules
1.3
Switches, jumpers, and buttons
Function
Description
Name
Board
Main power switch
Power on / off the whole evaluation kit
SW400
EVB-WL3
Cellular VCC jumper
Jumper socket to provide the 3.8 V supply to the cellular module VCC input
J404
EVB-WL3
J109
ADP-R5
Cellular power on
Push button to switch on / off the cellular module
SW302
EVB-WL3
Cellular reset
Push button to reset the cellular module
SW303
EVB-WL3
Cellular UART detach
Slide switch to attach / detach the cellular module main UART from the
USB / RS232 connectors on EVB-WL3
SW401
EVB-WL3
Cellular UART routing
Slide switch to select cellular module main UART routing on the USB or
RS232 connector on EVB-WL3
SW403
EVB-WL3
Cellular UART routing
3-pin header to route and make accessible the UART(s) of SARA-R5 series
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 ADP board
J248
ADP-R5
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-WL3
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-WL3
GNSS V_BCKP
Slide switch to connect / disconnect backup battery to / from the V_BCKP pin
of the GNSS module
SW204
EVB-WL3
Table 1: EVK-R5 switch and button descriptions
2
For EVK-
R510M8S it is recommended to keep this switch in “detach” position.