The nRF9151 SMA DK has a range of solder bridges for enabling or disabling functionality on the 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 nRF9151 SMA DK.
| Solder bridge | Default | Function |
|---|---|---|
| SB3 | Closed | Cut to disconnect RXD of UART1 from nRF9151 SiP |
| SB4 | Closed | Cut to disconnect TXD of UART1 from nRF9151 SiP |
| SB5 | Closed | Cut to disconnect RTS of UART1 from nRF9151 SiP |
| SB6 | Closed | Cut to disconnect CTS of UART1 from nRF9151 SiP |
| SB7 | Closed | Cut to disconnect RXD of UART2 from nRF9151 SiP |
| SB8 | Closed | Cut to disconnect TXD of UART2 from nRF9151 SiP |
| SB9 | Closed | Cut to disconnect RTS of UART2 from nRF9151 SiP |
| SB10 | Closed | Cut to disconnect CTS of UART2 from nRF9151 SiP |
| SB12 | Open | Short to permanently connect SIM VDD, bypass SIM current measurement connector |
| SB13 | Open | Close to reroute SIMDATA to pin 2 of MFF2 |
| SB14 | Closed | Cut to disconnect SIMDATA from pin 3 of MFF2 |
| SB15 | Open | Short to connect external board power to VIO_REF |
| SB16 | Open | Short to use VDD rail as power source for the external board |
| SB17 | Closed | Cut to disable P20 pin 3 (VTG) as select pin |
| SB18 | Closed | Cut to disconnect P5 pin 6 from shield detect |
| SB19 | Open | Short to connect P5 pin 6 to GND |
| SB20 | Open | Close to connect VDD to the UART1 connector |
| SB21 | Closed | Cut to disconnect RESET from P7 |
| SB22 | Open | Short to connect P0.21 to RESET on P1 |
| SB23 | Closed | Cut to disconnect P0.21 from RESET on P7 |
| SB24 | Closed | Cut to disconnect RESET from AREF on P4 and P10 |
| SB25 | Closed | Cut to disconnect RESET pins of P11 and P7 |
| SB26 | Open | Short to connect RESET pins of P11 and P5 |
| SB27 | Open | Short to connect RESET pins of P1 and P7 |
| SB28 | Closed | Cut to disconnect RESET pins of P1 and P5 |
| SB29 | Open | Short to permanently enable USB_DETECT signal |
| SB30 | Closed | Cut to disconnect VIO supply to P1 and P7 |
| SB31 | Closed | Cut to enable nRF9151 VDD_GPIO current measurement on P20 |
| SB32 | Closed | Cut to disconnect interface MCU power supply |
| SB33 | Closed | Cut to disconnect nPM1300 output from VDD |
| SB34 | Open | Short to permanently connect VDD_nRF and VDD_nRF', bypass current measurement connector |
| SB35 | Closed | Cut to disconnect 5V on P1 and P7 from VDD_5V |