SEGGER J-Link debugger/programmer for nRF52840


I have developed some projects on nRF52840 DK pca10056.

I want to program/debug the nRF52840 chip (this chip)  with SEGGER J-Link debugger/programmer (this debugger).

So I have the following questions.

1- Is this the right debugger I have selected? Or any other suggestion?
2- Is there any connection diagram(nRF52840 chip--with--SEGGER J-Link debugger/programmer)? I have not found it.
3- I need this setup to program many devices. So any suggestions?