nRF9160 DK v1.0.0

Solder bridge configuration

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

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

Table 1. Solder bridge configuration
Solder bridge Default Function
SB1 Closed Cut to disconnect VDD_GPIO supply to the nRF9160 SiP
SB2 Open Short to connect DBG_CMD to the SD card reader J8 (not populated by default)
SB3 Closed Cut to disconnect RTS signal from the nRF52840 SoC
SB4 Closed Cut to disconnect CTS signal from the nRF52840 SoC
SB5 Closed Cut to disconnect RXD signal from the nRF52840 SoC
SB6 Closed Cut to disconnect TXD signal from the nRF52840 SoC
SB7 Closed Cut to disconnect the 3.0 V USB supply from the interface MCU (U4)
SB8 Closed Cut to disconnect SWDIO from the nRF52840 SoC
SB9 Closed Cut to disconnect SWDCLK from the nRF52840 SoC
SB10 Closed Cut to disconnect the RESET signal from the nRF52840 SoC
SB11 Closed Cut to disconnect CTS from the nRF9160 SiP
SB12 Closed Cut to disconnect RTS from the nRF9160 SiP
SB13 Closed Cut to disconnect RXD from the nRF9160 SiP
SB14 Closed Cut to disconnect TXD from the nRF9160 SiP
SB15 Closed Cut to disconnect the RESET button from the nRF9160 reset pin when the interface MCU is disconnected
SB16 Open Short to connect the RESET button to the RESET pin on the Arduino interface
SB17 Open Short to connect the RESET pin on the Arduino interface to the nRF9160 reset pin
SB18 Open Short to connect the RESET pin on the Arduino interface to the nRF9160 reset pin when the interface MCU is disconnected
SB19 Open Short to connect the RESET pin on the Arduino interface to the interface MCU Boot when the interface MCU is disconnected
SB20 Closed Cut to disconnect IOEXP_IRQ from nRF9160 GPIO when the I/O expander is enabled
SB21 Open

Short to connect the RESET button to the nRF52840 reset pin when the interface MCU is disconnected

SB22 Open Short to connect the RESET button to the RESET pin of the nRF52840
SB23 Closed Cut to disconnect external memory chip select from P0.25
SB24 Open Short to enable power supply of the external device when using the Debug out connector (P19)
SB25 Open Short to bypass the USB detect switch (Q7)
SB26 Closed Cut to permanently disable SHIELD DETECT feature
SB27 Open Short to permanently enable the SHIELD DETECT feature
SB28 Open Short to supply VDD to bottom UART debug connector
SB29 Open Short to bypass the USB supply switch (U24)
SB30 Open Short to bypass the external supply switch U25
SB31 Open Short to bypass the VIN3–5 V switch U26
SB32 Closed Cut to disconnect supply to LDO (U28)
SB33 Closed Cut to disconnect the VSUPPLY and VDD_nRF'
SB34 Open Short to connect VDD_nRF and VDD_nRF'
SB35 Closed Cut to disconnect VDD and VIO
SB36 Open Short to bypass the VDD_IMCU switch (U30)
SB37 Open Short to bypass the VDD_IMCU_3V3 switch (U31)
SB38 Open Short to bypass switch U33
SB39 Closed Cut to disconnect supply from Arduino interface
SB40 Open Short to bypass Arduino 5 V reverse protection diode D11
SB41 Open Short to permanently connect SIM VDD, bypass Sim current measurement connector