The wiegand wiring is used to connect a card/fob reader to Swiftlane's door controller unit. A common error during installs is that the D0 and D1 wires are flipped on one end during the wire run. This causes the fob number being read to be shown as "invalid keycard" in the activity feed in the admin dashboard. The solution is to check the D0 and D1 wire is not flipped at the reader or controller.
This causes the binary digits of the card number to be inverted. e.g. if a 26 bit card number is
11111 11111 11111 11111 000000
It will be scanned on the door controller as
00000 00000 00000 00000 111111
By simply flipping the D0 and D1 wire, this fixed the issue.
You can refer to the Door Controller installation manual on our installation page