nRF9161 DK v0.9.1

Solder bridge configuration

The nRF9161 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 nRF9161 DK.

Table 1. Solder bridge configuration
Solder bridge Default Function
SB1 Closed Short to power GNSS LNA from VDD domain, cut SB2
SB2 Open Cut to disconnect VDD_GPIO supply from GNSS LNA
SB3 Closed Cut to disconnect RXD of UART1 from nRF9161 SiP
SB4 Closed Cut to disconnect TXD of UART1 from nRF9161 SiP
SB5 Closed Cut to disconnect RTS of UART1 from nRF9161 SiP
SB6 Closed Cut to disconnect CTS of UART1 from nRF9161 SiP
SB7 Closed Cut to disconnect RXD of UART2 from nRF9161 SiP
SB8 Closed Cut to disconnect TXD of UART2 from nRF9161 SiP
SB9 Closed Cut to disconnect RTS of UART2 from nRF9161 SiP
SB10 Closed Cut to disconnect CTS of UART2 from nRF9161 SiP
SB12 Closed Short to permanently connect SIM VDD, bypass SIM current measurement connector
SB13 Closed Close to reroute SIMDATA to pin2 of MFF2
SB14 Closed Cut to disconnect SIMDATA from pin3 of MFF2
SB15 Closed Short to use VIO_REF rail as power source of debug connector
SB16 Open Short to connect the RESET button to the RESET pin on the Arduino interface
SB17 Open SWD1 SELECT pulldown
SB20 Open Close to set UART 1 power source to VDD of the DK
SB21 Open Cut to disconnect RESET from P7
SB22 Open Short to connect RESET to P1
SB23 Closed Cut to disconnect RESET from P7
SB24 Open Cut to disconnect RESET from AREF on P4 and P10
SB25 Open Cut to disconnect RESET_P5_BOTTOM from RESET_BOTTOM
SB26 Closed Short to connect RESET_P5_BOTTOM to RESET_P5_TOP
SB27 Open Short to connect RESET_BOTTOM to RESET_TOP
SB28 Open Short to disconnect RESET_P5_BOTTOM from RESET_TOP
SB29 Open Short to permanently enable USB_DETECT signal
SB30 Open Cut to disconnect VIO supply
SB31 Open Cut to disconnect VDD_GPIO supply
SB32 Closed Cut to disconnect VDD_IMCU supply
SB33 Closed Cut to disconnect the VSUPPLY and VDD_nRF'
SB34 Open Short to connect VDD_nRF and VDD_nRF'
SB35 Closed Cut to separate VDD_5V and 5V domains