AST-CAN485 Hookup Guide
The CAN485 does not come with headers soldered on. We’ve left it up to you to solder on the headers or wires to the board for your project. Options include stackable headers, bent headers, or soldering wires directly to the pin pads.
A standard configuration for prototyping is to have the pins on the side facing down to allow for easy breadboarding while having the FTDI facing out and communications pins facing up for access via jumper cables.