Hi Daniel, happy to help! First, make sure you’ve read the installation manual thoroughly. Start by connecting the power and checking the wiring. The D1255RB usually requires a standard four-wire connection. Ensure a stable power source and verify the polarity.
Mount the keypad securely, and if it’s a remote keypad, check the communication wiring. Once connected, power up the system and configure the keypad according to your system requirements. If you encounter any issues during the process, consult the manual or give us more details for specific assistance. Good luck!