For example, if you want to swipe card to open the first door, no matter your access controller is DS-
K2601, DS-K2602 or DS-K2604, the binary value of the entrance card reader should be 1000 0000 and
the binary value of the exit card reader should be 0100 0000.
Step 2: RS-485 Wiring
Please connect card reader to access controller as following picture:
Note
1. Actually you can find RS485 A/B/C/D interfaces in access controller; we extend RS485 A interface
to the wiring distribution for easier cable connection and we use RS485B interface for backup, the
cable connection as following picture:
2. About wiring materials, we suggest customer choose RVVP cable.