nRF9160 DK v0.8.5

Solder bridge configuration

The nRF9160 DK (Development Kit) has a range of solder bridges for enabling or disabling functionality on the board. Changes to these are not needed for normal use of the development kit.

The following table is a complete overview of the solder bridges on the nRF9160 DK.

Table 1. Solder bridge configuration
Solder bridge Default Function
SB2 Closed Cut to disconnect VDD_GPIO supply to the SiP
SB3 Open Short to bypass switch U26
SB4 Open Short to bypass switch U31
SB5 Closed Cut to disconnect the RESET signal from nRF52840
SB6 Closed Cut to disconnect RTS signal from nRF52840
SB7 Closed Cut to disconnect CTS signal from nRF52840
SB8 Closed Cut to disconnect RXD signal from nRF52840
SB9 Closed Cut to disconnect TXD signal from nRF52840
SB10 Closed Cut to disconnect SWDIO from nRF52840
SB11 Closed Cut to disconnect SWDCLK from nRF52840
SB12 Closed Cut to disconnect the 3.3 V USB supply from the interface MCU (U2)
SB13 Closed Cut to disconnect supply to LDO (U32)
SB14 Closed Cut to disconnect RTS from the SiP
SB15 Closed Cut to disconnect RTS from the SiP
SB16 Closed Cut to disconnect RXD from the SiP
SB17 Closed Cut to disconnect TXD from the SiP
SB21 Open Short to bypass switch U27
SB22 Closed Cut to disconnect protection diode D3
SB23 Open Short to bypass protection diode D3
SB24 Open Short to bypass the USB detect switch (Q3)
SB25 Closed Cut to disconnect the RESET button from the nRF9160 reset pin when the interface MCU is disconnected
SB26 Closed Cut to disable the pull-up resistor of the RESET button (SW2)
SB27 Open Short to connect the RESET button to the RESET pin on the Arduino interface
SB28 Open Short to connect the RESET pin on the Arduino interface to the nRF9160 reset pin
SB29 Open Short to connect the RESET pin on the Arduino interface to the nRF9160 reset pin when the interface MCU is disconnected
SB30 Open Short to connect the RESET pin on the Arduino interface to the interface MCU Boot when the interface MCU is disconnected
SB31 Open Short to bypass switch U18
SB36 Open Short to connect P0.12 to the SD card reader P2 (not populated by default)
SB37 Open Short to enable power supply of the external device when using the Debug out connector (P22)
SB38 Open Short to permanently enable the I2C pull-up resistors
SB39 Closed Cut to permanently disable the I2C pull-up resistors
SB40 Open Short to bypass switch U24
SB41 Open Short to bypass switch U30
SB43 Closed Cut to disconnect VDD_nRF and VDD_nRF'
SB46 Closed Cut to disconnect the VSUPPLY and VDD_nRF'
SB49 Closed Cut to disconnect VDD and VIO