DoorBird D21x Display Module and Keypad with 16 Keys Installation Guide
Mounting D21x Display
Remove the connecting cables from the display before replacing it.
Mounting D21x Keypad
Remove the connecting cable from the keypad before replacing it.
Connecting D21x Display and Keypad
Connect the red cable of the main unit to the “MODULE PORT”
connector and the green cable of the main unit to the “COM”
connector on the display module. Then connect the keypad
module to the “KEYPAD” port on the display module.
The yellow cable of the main unit remains unutilized.
Documents / Resources
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DoorBird D21x Display Module and Keypad with 16 Keys [pdf] Installation Guide D21x, Display Module and Keypad with 16 Keys, D21x Display Module and Keypad with 16 Keys, Keypad with 16 Keys, 16 Keys |