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J2 debug connector on nRF51-Dongle

Hello--

The nRF51-Dongle has these 20 pads which I think correspond to a debug port:

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On the schematic, it looks like these feed into JTAG signals:

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My question is: can I solder a connector onto these pins and use the dongle as a "debug out" product (similar to the nRF51-DK) for the purposes of debugging/flashing a custom nRF51 board, or are these pins used for some other purpose?

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