About the J509 on the Xavier development kit

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
1

Dear Sir,
Would you please point out which side is the first pin of J509?

424×640 479 KB

2

Hi,

You can find this document for the J509 information:
https://static5.arrow.com/pdfs/2018/12/12/12/23/1/848262/nvda_/manual/jetson_xavier_developer_kit_carrier_board_specification.pdf#page=7

Thanks.