Ublox LENA-R8 Series User manual

UBX-22018774 - R02
C1-Public www.u-blox.com
EVK-R8
LENA-R8 series modules evaluation kit
User guide
Abstract
This guide explains how to set up the EVK-R8 evaluation kits to evaluate u-blox LENA-R8 series
modules supporting LTE Cat 1bis / 2G cellular radio access technologies, plus concurrent reception
of up to 4 GNSS systems with the integrated u-blox UBX-M10 GNSS receiver.

EVK-R8 - User guide
UBX-22018774 - R02 Document information Page 2 of 25
C1-Public
Document information
Title
EVK-R8
Subtitle
LENA-R8 series modules evaluation kit
Document type
User guide
Document number
UBX-22018774
Revision and date
R02
14-Apr-2023
Disclosure restriction
C1-Public
This document applies to the following products:
Product name
Type number
EVK-R8001
EVK-R8001-00C-00
EVK-R8001M10
EVK-R8001M10-00C-00
u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this
document. Copying, reproduction, modification or disclosure to third parties of this document or any part thereof is only
permitted with the express written permission of u-blox.
The information contained herein is provided “as is” and u-blox assumes no liability for its use. No warranty, either express or
implied, is given, including but not limited to, with respect to the accuracy, correctness, reliability and fitness for a particular
purpose of the information. This document may be revised by u-blox at any time without notice. For the most recent
documents, visit www.u-blox.com.
Copyright © u-blox AG.

EVK-R8 - User guide
UBX-22018774 - R02 Contents Page 3 of 25
C1-Public
Contents
Document information................................................................................................................................2
Contents ..........................................................................................................................................................3
1Introduction.............................................................................................................................................4
2Board quick start ...................................................................................................................................5
2.1 Software installation..................................................................................................................................5
2.2 Board setup .................................................................................................................................................. 5
2.2.1 SIM and antenna................................................................................................................................. 5
2.2.2 Power supply........................................................................................................................................6
2.2.3 Local connectivity...............................................................................................................................7
2.3 Switch off the cellular system..................................................................................................................8
3Register to network ..............................................................................................................................9
3.1 Enabling error result codes ....................................................................................................................... 9
3.2 PIN code insertion (when required).......................................................................................................... 9
3.3 Registration on a cellular network...........................................................................................................9
4Setting up cellular packet data connection on Windows...................................................... 10
4.1 How to install and configure a low data rate modem connection ...................................................10
4.2 How to install and configure a high data rate modem connection .................................................12
5EVK-R8 HW........................................................................................................................................... 14
5.1 EVK-R8 block diagram and basic description .....................................................................................14
5.2 Switches, jumpers and buttons .............................................................................................................16
5.3 LEDs.............................................................................................................................................................17
5.4 Connectors .................................................................................................................................................18
5.5 EVK-R8 pin out ..........................................................................................................................................19
5.6 Current consumption measurement ....................................................................................................21
Appendix ....................................................................................................................................................... 22
ASetting up AT terminal application .............................................................................................. 22
BGlossary ................................................................................................................................................. 24
CDeclaration of conformities............................................................................................................. 24
Related documentation ........................................................................................................................... 25
Revision history.......................................................................................................................................... 25
Contact.......................................................................................................................................................... 25

EVK-R8 - User guide
UBX-22018774 - R02 Introduction Page 4 of 25
C1-Public
1Introduction
The EVK-R8 kit is a powerful and easy-to-use tool that simplifies the evaluation of u-blox LENA-R8
series multimode modules. The following evaluation kits are available with u-blox LENA-R8 modules:
•The EVK-R8001 evaluation kit, for evaluation of LENA-R8001 modules
•The EVK-R8001M10 evaluation kit, for evaluation of LENA-R8001M10 modules.
All evaluation kits are herein identified as EVK-R8. As shown in Figure 1, the EVK-R8 is formed of three
boards:
•The EVB-WL3 or EVB, contains the power supply and other peripherals for the cellular module.
•LENA-R8 adapter board, ADP-R8, contains the LENA-R8 module, and other connectors and
switches.
•GNSS adapter board, ADP-GNSS, contains the u-blox GNSS module, the GNSS antenna connector
and the USB connector for the GNSS module.
EVB-WL3
ADP-R8
ADP-GNSS
Figure 1: EVK-R8 evaluation kit formed by three boards
☞For more hardware details about the EVK-R8 evaluation kit, see section 5

EVK-R8 - User guide
UBX-22018774 - R02 Board quick start Page 5 of 25
C1-Public
2Board quick start
2.1 Software installation
Before setting up the board, download and install the LENA-R8 USB drivers for Windows from
http://www.u-blox.com.
2.2 Board setup
2.2.1 SIM and antenna
Figure 2: SIM and antenna set up
1. Insert a SIM card into J300, the SIM card holder.
2. Connect the cellular antenna provided with the EVK-R8 evaluation kit box to J500, the cellular
antenna SMA connector.
3. For LENA-R8001M10, connect the GNSS antenna provided with the EVK-R8 evaluation kit box to
J501, the GNSS antenna SMA connector.
4. For LENA-R8001, if MAX-M10S GNSS module function required, connect the GNSS antenna
provided with the evaluation kit to J103, the GNSS antenna SMA connector. Keep the cellular
GNSS detach switch SW304 in “GNSS” position.
5. Place the GNSS antenna in a location with a good view of the sky.
J101
J100
J300
NORMAL→ USB
BOOT
J500
J502
J501
J600 J700
J402 (J401 on b ottom s ide)
J403 (J400 on bottom s ide)
J500
J501
OFF B2B DB9
UART0
DETACH
BATT DISABLE
DL401
DL400
DL403
DL501
DL404
LED700
LED600
DL405
DS501
DS500
DS107 DS105
DS109 DS103
GPIO ONBOARD MINIUSB
GNSS BKP
LED701
SW304
J103
DS118
DS121 DS107
DS104
J102

EVK-R8 - User guide
UBX-22018774 - R02 Board quick start Page 6 of 25
C1-Public
2.2.2 Power supply
Figure 3: Power supply set up
1. Connect the AC / DC +12 V power supply adapter to J400, the 9 –18 V Power Input connector.
LED DL401 lights turn blue.
2. Provide a jumper socket on J404, the Cellular VCC supply jumper, and to J102, the Cellular VCC
supply jumper.
3. For LENA-R8001M10, provide a jumper socket on J701, the VCC_GNSS enable jumper, and to
J702, the VBCKP_GNSS enable jumper.
4. Set J200, the Cellular USB boot slide switch on the “NORMAL” position. For FW update over USB,
set the slide switch on the “USB” position.
5. Turn SW400, the Main power switch to the ON position. LED DL400 lights turn green. The cellular
system of the LENA-R8 module is powered but still switched off. The GNSS system of the
LENA-R8001M10 module switches on.
J101
J100
J400
NORMAL→ USB
BOOT
J502
J600 J700
J402 (J401 on bottom s ide)
J403 (J400 on b ottom s ide)
J500
J501
OFF B2B DB9
UART0
DETACH
BATT DISABLE
DL401
DL400
DL403
DL501
DL404
LED700
LED600
DL405
DS501
DS500
DS107 DS105
DS109 DS103
GPIO ONBOARD MINIUSB
GNSS BKP
LED701
DL401
J404
DL400
SW400
J102
J702
J701
J200
J103
DS118
DS121 DS107
DS104
J102

EVK-R8 - User guide
UBX-22018774 - R02 Board quick start Page 7 of 25
C1-Public
2.2.3 Local connectivity
Figure 4: Set up local connectivity via USB or UART
2.2.3.1 Communication via USB
1. For communication via the cellular USB interface, connect a USB cable to J700, the Cellular native
USB connector. LED700 turns blue.
2. Press SW302, the cellular power-on button, to switch on the cellular system of LENA-R8 module.
3. Once the cellular system switched on, the COM ports in the Table 1 are enabled by the Windows
USB driver after the module boot (see Windows device manager for numbering of ports)
1
:
Parameter
Type
Remarks
Unisoc Usb Serial Port 0
Ports (COM & LPT)
AT command interface and data communication
Unisoc Usb Serial Port 1
Ports (COM & LPT)
Reserved
Unisoc Usb Serial Port 2
Ports (COM & LPT)
Reserved
Unisoc Usb Serial Port 3
Ports (COM & LPT)
Diagnostic log (CP)
Unisoc Usb Serial Port 4
Ports (COM & LPT)
Diagnostic log (AP)
Unisoc Usb Serial Port 5
Ports (COM & LPT)
GNSS data tunneling
Unisoc Usb Serial Port 6
Ports (COM & LPT)
AT command interface and data communication
Unisoc Usb Serial Port 7
Ports (COM & LPT)
AT command interface and data communication
Table 1: Cellular USB interface configuration
Run an AT terminal (e.g., the u-blox m-center tool), select the AT port with below settings:
Data rate
Data bits
Parity
Stop bits
Flow control
115200 bit/s
8
N
1
HW
See appendix Afor how to configure the u-blox m-center AT terminal for Windows.
1
A message “driver installation fail” may appear on Windows if the USB cable has been connected before the end of the module
boot, but this can be ignored as the normal operating functionality will be available anyway after the end of the module boot.
J101
J100
NORMAL→ USB
BOOT
J502
J600 J700
J402 (J401 on b ottom s ide)
J403 (J400 on b ottom si de)
J500
J501
OFF B2B DB9
UART0
DETACH
BATT DISABLE
DL401
DL400
DL403
DL501
DL404
LED700
LED600
DL405
DS501
DS500
DS107 DS105
DS109 DS103
GPIO ONBOARD MINIUSB
GNSS BKP
LED701
LED700
SW302
DL501
LED600
J103
DS118
DS121 DS107
DS104
J102

EVK-R8 - User guide
UBX-22018774 - R02 Board quick start Page 8 of 25
C1-Public
2.2.3.2 Communication via UART
1. For communication via the UART interfaces, use one of the following connections:
a. Connect a USB cable to J501 (mini-USB), the Cellular USB Main UART. The LED DL501 turns
blue. When a USB cable is connected to this mini-USB connector, two COM ports are enabled
in Windows.
•The main 8-wire UART interface of the cellular system is available over the first COM
port opened by the driver after the end of the cellular system boot, once the cellular
system is switched on.
•The 2-wire UART interface of the LENA-R8001M10 GNSS system is available over the
second COM port opened by the driver after the end of the GNSS system boot.
b. Connect an RS232 cable to the J500, the Cellular RS232 Main UART, a DB9 connector: the
main 8-wire UART interface of the cellular system is available over RS232 after the cellular
system boot, once the cellular system is switched on.
c. Connect a USB cable to J600 (mini-USB), the Cellular USB two UARTs. The LED600 turns
green. The two 4-wire UART interfaces of the cellular system are each available over the two
numbered COM ports opened by the driver, after the end of the cellular system boot once the
cellular system is switched on. (To enable two UART interfaces, see the AT commands
manual [1], the +USIO AT command.)
Type of connections
SW401
SW403
J601
LED
Access to the main UART interface over the Cellular USB
(Main UART) mini-USB connector on EVB-WL3 (J501)
ON BOARD
MINIUSB
Jumper socket
on pins 1-2
DL403
DL501
Access to the LENA-R8001M10 GNSS UART interface over
the Cellular USB mini-USB connector on EVB-WL3 (J501)
ON BOARD
MINIUSB
Jumper socket
on pins 1-2
DL403
DL501
Access to the main UART interface over the Cellular RS232
(Main UART) DB9 connector on EVB-WL3 (J500)
ON BOARD
DB9
Jumper socket
on pins 1-2
DL405
Access to the two UART interfaces over the Cellular USB
(Two UARTs) mini-USB connector on ADP-R8 (J201)
B2B
Do not care
Jumper socket
on pins 2-3
DL404
DS201
Access to UART(s) interface(s) over the DIL B2B header on
the top of the adapter board (J402)
B2B
Do not care
No jumper socket
DL404
Table 2: UART serial interfaces configuration
Run an AT terminal (such as the u-blox m-center tool) selecting the AT port, with these settings:
Data rate
Data bits
Parity
Stop bits
Flow control
115200 bit/s
8
N
1
HW
See appendix Afor how to configure the u-blox m-center AT terminal for Windows.
2. Press SW302, the cellular power-on button, to switch on the cellular system of LENA-R8 module.
2.3 Switch off the cellular system
To switch off the cellular system in the EVK-R8, send the +CPWROFF AT command.
☞Issue AT+CPWROFF command before switching off the main power supply, otherwise settings
and configuration parameters may not be saved in the non-volatile memory of the cellular module.

EVK-R8 - User guide
UBX-22018774 - R02 Register to network Page 9 of 25
C1-Public
3Register to network
3.1 Enabling error result codes
Command sent by DTE (user)
DCE response (module)
Description
AT+CMEE=2
OK
Enable the cellular module to report verbose error
result codes.
3.2 PIN code insertion (when required)
Command sent by DTE (user)
DCE response (module)
Description
AT+CPIN="8180"
OK
Enter the PIN code, if needed (enter the PIN of the SIM
card –8180 is an example).
AT+CLCK="SC",0,"8180"
OK
Unlock the PIN at power-on (the last parameter is the
PIN of the SIM card –8180 is an example).
AT+CLCK="SC",1,"8180"
OK
Lock the PIN at power-on (the last parameter is the PIN
of the SIM card –8180 is an example).
3.3 Registration on a cellular network
Command sent by DTE (user)
DCE response (module)
Description
AT+CREG?
+CREG: 0,1
OK
Verify the CS network registration.
AT+CEREG?
+CEREG:
0,1,"5684","03761b14",7
OK
Verify the EPS network registration.
AT+COPS=0
OK
Register the module on the network.
The cellular module automatically registers itself on
the cellular network. This command is necessary only if
the auto-registration failed (AT+CREG? returns 0,0).
AT+COPS?
+COPS: 0,0,"I TIM",7
OK
Read the operator name and radio access technology
(RAT).
For the complete description and syntax of the AT commands supported by LENA-R8 series modules,
see the AT commands manual [1].

EVK-R8 - User guide
UBX-22018774 - R02 Setting up cellular packet data connection on Windows Page 10 of 25
C1-Public
4Setting up cellular packet data connection
on Windows
This section describes how to set up a packet data connection on Windows 10 using the operating
system’s TCP/IP stack and EVK-R8. This is also referred to as a dial-up connection.
The following examples describe how to install and configure two different kinds of modems on
Windows:
1. Low data rate modem: via the UART interface of the cellular module connected to the Windows
PC by the Cellular USB connector (J501 on EVB) or the Cellular RS232 connector (J500 on EVB)
2. High data rate modem: via the native USB interface of the cellular module connected to the
Windows PC by the Cellular Native USB connector (J700 on the ADP-R8)
4.1 How to install and configure a low data rate modem
connection
This example describes how to install and configure a low data rate packet data connection on a PC
with Windows 10 operating system. This uses the TCP/IP stack of the PC over the UART interface of
the cellular module connected to the Windows PC by the Cellular USB connector (J501 on EVB) or the
Cellular RS232 connector (J500 on EVB).
1. From Control Panel, select Phone and
Modem > Modems > Add.
This opens the Add Hardware Wizard.

EVK-R8 - User guide
UBX-22018774 - R02 Setting up cellular packet data connection on Windows Page 11 of 25
C1-Public
2. Tick “Don’t detect my modem” checkbox.
Click Next.
3. Select Standard 33600 bps Modem.
Click Next.
4. Select COM port for data communication
and click Next. The modem will be installed
on this COM port.
5. Click Finish to complete the installation.

EVK-R8 - User guide
UBX-22018774 - R02 Setting up cellular packet data connection on Windows Page 12 of 25
C1-Public
6. Now the new modem is visible in Control
Panel, under Phone and Modem > Modems.
Any extra initialization AT command (e.g., to set
a specific APN name) can be entered by
selecting Properties and filling in Advanced >
Extra initialization commands text box.
Now the module is ready, and the connection can be configured.
The modem configuration can also be edited in Device Manager, by clicking on the modem name.
4.2 How to install and configure a high data rate modem
connection
This example describes how to install and configure a high data rate packet data connection on a PC
with the Windows 10 operating system, using the TCP/IP stack of the PC, over the native USB
interface of the cellular module connected to the Windows PC by the Cellular Native USB connector
(J700 on the ADP-R8).
1. From Control Panel, select Network and
Sharing Center > Set up a new connection
or network.
2. Click Connect to the Internet and then
Next.

EVK-R8 - User guide
UBX-22018774 - R02 Setting up cellular packet data connection on Windows Page 13 of 25
C1-Public
3. Select Dial-up and if requested, the
modem previously installed.
4. Select one of the two AT commands ports.
5. Enter the parameters for the dial-up
connection:
oThe module telephone number:
*99***1#
(change if using a PDP context
different from 1)
oThe specific account information for
the network operator
oA name for the connection (e.g., “R8
Dial-up”)
The packet data connection is now ready to be used with EVK-R8. Click Connect to start the
connection, then start a browser to check internet connectivity.
Consult the cellular network operator for username and password. In most cases, they can be left
empty.

EVK-R8 - User guide
UBX-22018774 - R02 EVK-R8 HW Page 14 of 25
C1-Public
5EVK-R8 HW
5.1 EVK-R8 block diagram and basic description
Figure 5 shows the main interfaces and internal connections of the EVK-R8 evaluation kit:
SIM
card holder
(J300)
LENA-R8 adapter board
LENA-R8
Module
42-pin DIL B2B connector 42-pin DIL B2B connector
EVB-WL3
GNSS
module
GNSS adapter board
RF_IN
USB
2-UART
converter
USB
(Cellular Main UART + GNSS UART)
(J501)
RS232
(Cellular Main UART)
(J500)
RS232
UART
converter Cellular Main UART
GNSS UART
MiniUSB/DB9
switch
(SW403)
On-board/B2B
switch
(SW401)
USB I2C
DC/DC
Step - down
Main power switch
(SW400)
12 V
(J400)
3.8 V
VCC jumper
(J404)
LDO
GPIO2/3/4
GNSS switch
(SW304)
Cellular
Native USB
(J700)
Cellular
Antenna
(J500)
USB
(Cellular UART + AUX UART)
(J600)
GNSS
Antenna
(J501)
USB / 2-UART converter
ANT_GNSS
VCC jumper
(J102)
3-pin
(J601)
GNSS UART
Cellular
Reset
(SW303)
Cellular
Power-on
(SW302)
Headset jack
(J303)
Main UART
AUX UART
Main UART
Audio
Codec
WiFi
Antenna
(J502)
RSVD ANT
3.8 V
LDO
VCC
VCC_GNSS
LDO VBCKP_GNSS
1.8 V
1.8 V
USB_BOOT
(J200)
J702
J701
Figure 5: Block diagram of EVK-R8
The EVK-R8 is formed by three boards:
•EVB-WL3 or EVB, contains the power supply and other peripherals for the cellular module (such
as SIM card holder, reset button and power-on button).
•The LENA-R8 adapter board, called ADP-R8, contains the LENA-R8 module.
•The GNSS adapter board, called ADP-GNSS, contains the u-blox GNSS module.
The LENA-R8 and the GNSS adapter boards (ADP-R8 and ADP-GNSS respectively) are connected by
male header board-to-board connectors on the bottom of the adapter boards and their corresponding
female connectors on top of the lower board (EVB-WL3).
The USB interface of the LENA-R8 cellular system is available on the native USB connector (J700) on
the cellular adapter board (ADP-R8).
The main UART and the auxiliary UART interfaces of the LENA-R8 cellular system can be routed as
follows, by the 3-way UARTs’routing switch (J601) available on the LENA-R8 adapter board (ADP-R8)
as illustrated in Figure 6:
•EVB position (pin 1-2 of J601 shorted by jumper socket): main UART routed as 8-wire interface to
the lower EVB-WL3 board by the dual-in-line male board-to-board connectors mounted on the
bottom of the adapter board ADP-R8. According to the mini-USB / DB9 switch (SW403) setting on
the EVB-WL3, the main 8-wire UART interface can be accessed on the USB connector (J501) or
on the RS232 DB9 connector (J500) on the EVB-WL3, with the on-board / B2B switch (SW401) on
the EVB-WL3 set to “on-board”. The auxiliary UART interface is not available.
•ADP position (pin 2-3 of J601 shorted by jumper socket): main UART and auxiliary UART routed
as 4-wire interfaces to the USB two UARTs connector (J600) mounted on the adapter board, with
the on-board / B2B switch (SW401) on the EVB-WL3 board is set to “B2B”.
•No position (no jumper socket on J601): main 8-wire UART interface or main 4-wire UART with
auxiliary 4-wire UART interfaces, routed to the dual-in-line male header connectors mounted on
the top of the adapter board ADP-R8, allowing a connection to an external compatible device with
the on-board / B2B switch (SW401) on the EVB-WL3 board set to “B2B”.

EVK-R8 - User guide
UBX-22018774 - R02 EVK-R8 HW Page 15 of 25
C1-Public
Figure 6: 3-pin header J601 available to set the routing of the UART interfaces
The other peripherals of the cellular module are available on the dual-in-line male header connectors
(J402 / J403) on the top layer of the cellular adapter board ADP-R8.
The lower board is compatible with other u-blox cellular adapter boards. It contains additional
switches, jumpers, connectors, LEDs and parts that are partially described 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 to leave any additional switch in its default configuration.
EVB_UA RT_N
GND
ADP_U ART_N

EVK-R8 - User guide
UBX-22018774 - R02 EVK-R8 HW Page 16 of 25
C1-Public
5.2 Switches, jumpers and buttons
Function
Description
Name
Board
Main power switch
Power on / off the whole evaluation kit
SW400
EVB
Cellular VCC
Jumper socket to provide the 3.8 V supply to the cellular VCC input
J404
EVB
Cellular power-on
Push button to switch-on the cellular system of LENA-R8
SW302
EVB
Cellular reset
Push button to reset the cellular system of LENA-R8
SW303
EVB
Cellular UART detach
Slide switch to attach / detach cellular 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 main UART routing on USB or on RS232 connector
SW403
EVB
Cellular GPIO detach
Slide switch to attach / detach the cellular GPIOs from peripherals: when detached,
the signals are available only on the DIL B2B connector on ADP-R8 board
SW300
EVB
Cellular GNSS detach
Slide switch to attach / detach the cellular system of LENA-R8 to the GNSS module
mounted on the ADP-GNSS: when detached, signals are available only on DIL B2B
connector on ADP-R8 board
SW304
EVB
GNSS V_BCKP
Slide switch to connect / disconnect backup battery to V_BCKP pin of the GNSS
module mounted on the ADP-GNSS
SW204
EVB
Cellular VCC
Jumper socket to provide the 3.8 V supply to the cellular VCC input
J102
ADP-R8
Cellular UARTs routing
Jumper to route cellular UART interfaces to the USB two UARTs connector on the
ADP-R8 (both Main and Auxiliary UART) or to lower EVB-WL3 motherboard by
means of Dual-In-Line male Board-to-Board connectors (only Main UART)
J601
ADP-R8
Cellular USB boot
Slide switch to select cellular system boot mode: normal operating boot mode or
USB boot mode for FW update
J200
ADP-R8
VCC_GNSS enable
Jumper socket to enable 1.8 V supply to VCC_GNSS input of LENA-R8001M10
J701
ADP-R8
VBCKP_GNSS enable
Jumper socket to enable 1.8 V supply to VBCKP_GNSS input of LENA-R8001M10
J702
ADP-R8
Table 3: EVK-R8 switch and button descriptions
Cell power on - SW302
Cell reset- SW303
Cell GPIO detach - SW300
Cell UART detach - SW401
Cell UART routing - SW403
Cell GNSS detach -SW304
GNSS VBCKP - SW204
Main power - SW400
J101
J100
J300
SW400
J400
NORMAL→ USB
BOOT
USB / NORMAL BOOT - J200
J500
J502
J501
J600 J700
J102
VBKP_GNSS_1V8
J702
J701
EVB_UART_N
GND
ADP_UART_N
J601
J402 (J401 on bottom s ide)
J403 (J400 on bottom s ide)
VCC_GNSS
J500
J501
OFF B2B DB9
UART0
DETACH
BATT DISABLE
DL401
DL400
J404
VCC_MOD
VCC_GNSS_1V8
VCC_INT_MOD
DL403
DL501
DL404
LED700
LED600
DL405
DS501
DS500
DS107 DS105
DS109 DS103
GPIO ONBOARD MINIUSB
GNSS BKP
LED701
CellularVCC - J404
J402J403
J405J406
J401 J407
VCC_GNSS enable –J701
VBCKP_GNSS enable –J702
VCC_GNSS
Cell VCC –J102
Cell UARTs routing - J601
J103
DS118
DS121 DS107
DS104
J102

EVK-R8 - User guide
UBX-22018774 - R02 EVK-R8 HW Page 17 of 25
C1-Public
5.3 LEDs
Function
Color
Description
LED #
Board
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 the Cellular native USB connector
LED700
ADP-R8
Cellular two UARTs USB
USB cable plugged in the Cellular two UARTs USB connector
LED600
ADP-R8
Cellular USB
USB cable plugged in the Cellular USB connector for UART access
DL501
EVB
Cellular USB / UART
Green light on when 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 UART detach
UART signals are available only on the DIL connector on ADP-R8 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 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 on when cellular GPIO1 is high
DS107
EVB
Cellular GPIO2 indicator
Green light on when cellular GPIO2 is high
DS105
EVB
Cellular GPIO3 indicator
Green light on when cellular GPIO3 is high
DS109
EVB
Cellular GPIO4 indicator
Green light on when cellular GPIO4 is high
DS103
EVB
GNSS time pulse
Time pulse of the LENA-R8001M10 GNSS system
LED701
ADP-R8
GNSS supply
Supply of the GNSS module mounted on the ADP-GNSS is turned ON
DS118
ADP-GNSS
GNSS USB
USB cable plugged in GNSS USB connector
DS124
ADP-GNSS
GNSS time pulse
Time pulse of the GNSS module mounted on the ADP-GNSS
DS121
ADP-GNSS
Cellular / GNSS DDC
Cellular / GNSS module communication over the DDC (I2C) interface
DS132
ADP-GNSS
Table 4: EVK-R8 LED descriptions
J101
J100
J300
SW400
J400
NORMAL→ USB
BOOT
J500
J502
J501
J600 J700
J102
VBKP_GNSS_1V8
J702
J701
EVB_UART_N
GND
ADP_UART_N
J601
J402 (J401 on bottom si de)
J403 (J400 on bottom si de)
VCC_GNSS
J500
J501
OFF B2B DB9
UART0
DETACH
BATT DISABLE
DL401
DL400
J404
VCC_MOD
VCC_GNSS_1V8
VCC_INT_MOD
DL403
DL501
DL404
Cell native USB - LED700
LED700
Cell two UARTs USB - LED600
LED600
Cell USB/UART - DL403
Cell USB - DL501
Cell UART detach - DL404
DL405
Cell RS232/UART - DL405
DS501
DS500
Cell RI indicator - DS501
Cell CTS indicator - DS500
DS107 DS105
DS109 DS103
Cell GPIO4 indicator - DS103
Cell GPIO3 indicator - DS109
Cell GPIO2 indicator - DS105
Cell GPIO1 indicator - DS107
GPIO ONBOARD MINIUSB
GNSS BKP
LED701
GNSS time pulse - LED701
Main power - DL401
Cellular VCC - DL400
J402J403
J405J406
J401 J407
VCC_GNSS
J103
DS118
GNSS supply - DS118
GNSS USB - DS104
GNSS time pulse - DS121
Cellular / GNSS DDC - DS107
DS121 DS107
DS104
J102

EVK-R8 - User guide
UBX-22018774 - R02 EVK-R8 HW Page 18 of 25
C1-Public
5.4 Connectors
Function
Description
Name
Board
9 - 18 V Power Input
Connector for the AC / DC power adapter of the EVK
AC: 100-240 V, 0.8 A, 50-60 Hz / DC: +12 V, 2.5 A
IEC 60417-5172
Class II equipment
J400
EVB
SIM card holder
SIM card holder
J300
EVB
Cellular antenna
SMA connector for the cellular antenna (ANT, Tx/Rx)
J500
ADP-R8
GNSS antenna
SMA connector for LENA-R8001M10 GNSS system (ANT_GNSS, Rx)
J501
ADP-R8
Cellular native USB
Mini USB connector for the cellular native USB interface
J700
ADP-R8
Cellular two UARTs USB
Mini USB connector for the cellular main and auxiliary USB interfaces
J600
ADP-R8
Cellular USB (UART)
Mini USB connector for the cellular UART interface converted as USB interface
J501
EVB
Cellular RS232 (UART)
DB9 connector for the cellular UART interface converted as RS232 interface
J500
EVB
DIL B2B headers
Dual-In-Line Board-to-Board connectors for LENA-R8 interfaces
J402-J403
ADP-R8
Cellular headset
Audio headset jack connector for the cellular audio interface
J303
EVB
GNSS antenna
SMA connector for the antenna of the GNSS module mounted on ADP-GNSS
J208
ADP-GNSS
GNSS USB
Mini USB connector for the GNSS module USB interface
J102
ADP-GNSS
GNSS backup battery
Backup battery socket for the GNSS module (under GNSS adapter board)
BT200
EVB
GND
Ground terminals for the probe reference
J402÷J406
EVB
Table 5: EVK-R8 connector descriptions
⚠Caution! In the unlikely event of a failure in the internal protection circuitry, there is a risk of an explosion
when charging a fully or partially discharged battery. Replace the battery when it no longer has a
sufficient charge for unit operation. Check the battery before use if the device has not been used for an
extended period of time.
⚠Caution! Risk of explosion if battery is replaced with incorrect type. Dispose battery according to rules!
UART / AUX_UART - J501
Cell RS232 (UART) - J500
SIM holder - J300
12 V Power Supply - J400
J101
J100
J300
SW400
J400
NORMAL→ USB
BOOT
Cell antenna - J500
GNSS antenna - J501
J500
J502
J501
J600 J700
J102
VBKP_GNSS_1V8
J702
J701
EVB_UART_N
GND
ADP_UART_N
J601
J402 (J401 on bottom si de)
J403 (J400 on bottom si de)
VCC_GNSS
J500
J501
OFF B2B DB9
UART0
DETACH
BATT DISABLE
DL401
DL400
J404
VCC_MOD
VCC_GNSS_1V8
VCC_INT_MOD
DL403
DL501
DL404
Cell native USB - LED700
LED700
LED600
DL405
DS501
DS500
DS107 DS105
DS109 DS103
GPIO ONBOARD MINIUSB
GNSS BKP
LED701
Cell two UARTs USB - J600
DIL B2B header –J403
DIL B2B header –J402
Cell headset –J303
J402J403
J405J406
GND - J403 GND - J403
GND - J405GND - J403
J401 J407
VCC_GNSS
GNSS backup batt - BT200
J103
DS118
DS121 DS107
GNSS antenna –J103
GNSS USB –J102
DS104
J102

EVK-R8 - User guide
UBX-22018774 - R02 EVK-R8 HW Page 19 of 25
C1-Public
5.5 EVK-R8 pin out
Table 6 shows the Interfaces of LENA-R8 series modules, as routed on the 42-pin dual-in-line board-
to-board connectors (J402, J403) on the adapter board ADP-R8 of the evaluation kit
LENA-R8 series
DIL B2B
LENA-R8 series
DIL B2B
LENA-R8 series
DIL B2B
Pin N°
Name
Name / Pin N°
Pin N°
Name
Name / Pin N°
Pin N°
Name
Name / Pin N°
1
GND
J402 pins 7-10
24
GPIO3
J402 pin 32
47
TXD_GNSS
J402 pin 20
2
V_BCKP
J402 pin 3
25
GPIO4
J402 pin 25
48
RXD_GNSS
J402 pin 19
3
GND
J402 pins 7-10
26
SDA
J403 pin 21
49
RSVD
Not present
4
V_INT
J402 pin 36
27
SCL
J403 pin 20
50
GND
J402 pins 7-10
5
GND
J402 pins 7-10
28
USB_D-
Not present
51
VCC
J403 pins 8-10
6
DSR
J402 pin 18
29
USB_D+
Not present
52
VCC
J403 pins 8-10
7
RI
J402 pin 17
30
GND
J402 pins 7-10
53
VCC
J403 pins 8-10
8
DCD
J402 pin 11
31
ANT_GNSS
Not present
54
GND
J402 pins 7-10
9
DTR
J402 pin 12
32
GND
J402 pins 7-10
55
GND
J402 pins 7-10
10
RTS
J402 pin 13
33
USB_BOOT
Not present
56
ANT
Not present
11
CTS
J402 pin 14
34
I2S_WA
J403 pin 25
57
GND
J402 pins 7-10
12
TXD
J402 pin 15
35
I2S_TXD
J403 pin 24
58
GND
J402 pins 7-10
13
RXD
J402 pin 16
36
I2S_CLK
J403 pin 22
59
ANT_DET
Not present
14
GND
J402 pins 7-10
37
I2S_RXD
J403 pin 23
60
GND
J402 pins 7-10
15
PWR_ON
J402 pin 29
38
SIM_CLK
J403 pin 15
61
GND
J402 pins 7-10
16
GPIO1
J402 pin 33
39
SIM_IO
J403 pin 14
62
RSVD
Not present
17
VUSB_DET
Not present
40
SIM_RST
J403 pin 16
63
GND
J402 pins 7-10
18
RESET_N
J403 pin 26
41
VSIM
J403 pin 13
64
GND
J402 pins 7-10
19
GPIO6
J402 pin 24
42
GPIO5
J402 pin 23
65-96
GND
J402 pins 7-10
20
GND
J402 pins 7-10
43
GND
J402 pins 7-10
97
RFCTRL1
J403 pin 5
21
RSVD
Not present
44
ANT_ON
J403 pin 3
98
RFCTRL2
J403 pin 6
22
GND
J402 pins 7-10
45
TIMEPULSE
J403 pin 2
99
VCC_GNSS
Not present
23
GPIO2
J402 pin 31
46
EXTINT
J403 pin 4
100
VBCKP_GNSS
Not present
Table 6: Interfaces of LENA-R8 series modules
Table 7 shows the p in-out of the 42-pin dual-in-line board-to-board connectors (J402, J403) on the
adapter board ADP-R8.

EVK-R8 - User guide
UBX-22018774 - R02 EVK-R8 HW Page 20 of 25
C1-Public
Dual-in-line board-to-board connector J402
Dual-in-line board-to-board connector J403
Signal name
Pin N°
Pin N°
Signal name
Signal name
Pin N°
Pin N°
Signal name
GND
1
2
Not connected
GND
1
2
TIMEPULSE
V_BCKP
3
4
Not connected
ANT_ON
3
4
EXTINT
Not connected
5
6
Not connected
RFCTRL1
5
6
RFCTRL2
GND
7
8
GND
VCC
7
8
VCC
GND
9
10
GND
VCC
9
10
VCC
DCD
11
12
DTR
Not connected
11
12
Not connected
RTS
13
14
CTS
VSIM
13
14
SIM_IO
TXD
15
16
RXD
SIM_CLK
15
16
SIM_RST
RI
17
18
DSR
Not connected
17
18
Not connected
RXD_GNSS
19
20
TXD_GNSS
Not connected
19
20
SCL
Not connected
21
22
Not connected
SDA
21
22
I2S_CLK
GPIO5
23
24
GPIO6
I2S_RXD
23
24
I2S_TXD
GPIO4
25
26
Not connected
I2S_WA
25
26
RESET_N
Not connected
27
28
Not connected
MIC_GND
27
28
MIC_BIAS
PWR_ON
29
30
Not connected
Not connected
29
30
Not connected
GPIO2
31
32
GPIO3
Not connected
31
32
Not connected
GPIO1
33
34
Not connected
SPK_P
33
34
SPK_N
Not connected
35
36
V_INT
Not connected
35
36
Not connected
Not connected
37
38
Not connected
Not connected
37
38
Not connected
Not connected
39
40
Not connected
Not connected
39
40
Not connected
GND
41
42
GND
GND
41
42
Not connected
Table 7: Pin-out of the 42-pin dual-in-line board-to-board connectors (J402, J403)
☞The pins / interfaces that are not supported by a specific LENA-R8 product version should not be
driven by an external device. For the features supported by each LENA-R8 product version, see the
LENA-R8 series data sheet [2] and the LENA-R8 series system integration manual [3].