EVK-U20, EVK-U23 - User Guide
UBX-13001794 - R07
Early Production Information
Starting up
Page 6 of 21
1.4
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
Cellular main antenna
SMA connector for the cellular module main antenna
J501
ADP-U2xx
Cellular Rx div antenna
SMA connector for the cellular module Rx diversity antenna
J500
ADP-U2xx
SIM card holder
SIM card holder
J300
EVB
Cellular native USB
Mini USB connector for cellular module native USB interface
J313
ADP-U2xx
Cellular USB (UART)
Mini USB connector for cellular module UART interface converted as USB interface
J501
EVB
Cellular RS232 (UART)
DB9 connector for cellular module UART interface converted as RS232 interface
J500
EVB
Cellular headset
Audio headset jack connector for cellular module audio interface
J303
EVB
DIL B2B headers
Dual-In-Line Board-to-Board connectors for cellular module interfaces
J101, J112
ADP-U2xx
GNSS antenna
SMA connector for the GNSS module antenna (GNSS antenna)
J103
ADP-GNSS
GNSS USB
Mini USB connector for 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 probe reference
J402/3/5/6
EVB
Table 2: EVK-U2x connectors’ description
Caution! In the unlikely event of a failure in the internal protection circuitry there is a risk of an
explosion when charging fully or partially discharged battery. Replace battery when it no
longer has sufficient charge for unit operation. Control 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 an incorrect type. Dispose of used
batteries according to the instructions!
1.5
LEDs
Function
Description
LED #
Board
Color
Main Power
Power supply plugged in the
9 - 18 V Power Input
DL401
EVB
Cellular VCC supply
Cellular module supplied.
Main Power Switch
must be switched on
DL400
EVB
Cellular native USB
USB cable plugged in
Cellular native USB
connector
DS200
ADP-U2xx
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 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 UART detach
UART signals are available only on the DIL B2B connector on ADP board
DL404
EVB
Cellular RI indicator
RI line turns ON (active low)
DS501
EVB
Cellular CTS indicator
CTS line turns ON (active low)
DS500
EVB
Cellular GPIOs indicators
Green light is activated when cellular GPIO1 is high
Green light is activated when cellular GPIO2 is high
Green light is activated when cellular GPIO3 is high
Green light is activated when cellular GPIO4 is high
DS107
DS105
DS109
DS103
EVB
EVB
EVB
EVB
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 3: EVK-U2x LEDs’ description
