The nRF9161 DK supports programming and debugging external boards with nRF51 Series, nRF52 Series, nRF53 Series, and nRF70 Series System on Chip (SoC)s and nRF91 Series System in Package (SiP)s.
The interface MCU on the nRF9161 DK runs SEGGER J-Link OB Debugger interface firmware and is used to program and debug the firmware of the nRF9161 SoC by default.
To program or debug an external board, connect to the Debug out connector (P19) using a 10-pin cable or use P20 for custom connection.
Figure 1. Debug output connectors
