Install and Configure the Electronics
Place the batteries, power conditioning box, and data recorder in the electronics enclosure. Wire the batteries in parallel, and make all cable connections. The precise steps vary depending on the equipment used -- see the checklists on the menu for details.
The same holds true of configuring the electronics -- the details depend on the models being installed. Again, see the checklists for specifics.
When the equipment is configured and the station is confirmed to be in good working order, it is time to bury the sensor vault and backfill the trenches...