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3-3   Enterprise Version (E) Series Controller with Doorbell Button Using the # Key as the Doorbell Button

1.Basic Introduction  

There are two methods for connecting an external doorbell to the card reader, depending on whether the card reader includes a dedicated doorbell button:

• Home Series (H Series)

For the H Series card readers, the AR-757-H is equipped with a doorbell button. This allows direct use of the built-in doorbell button or configuration of the "#" key as a doorbell output function.
For other H Series models without a doorbell button, the "#" key can be enabled to serve as the doorbell output function.

• Enterprise Series (E Series)

For the E Series card readers, models like AR-837-E, AR-837-EE, AR-837-EF9DO, AR-837-EA, AR-837-EL, and AR-837-ER are equipped with doorbell buttons, allowing direct use of the controller’s doorbell button or enabling the "#" key for doorbell output functionality.
Models such as AR-327-E, and AR-727-E  do not have a doorbell button and require enabling the "#" key as the doorbell output function.

Below are the wiring and configuration methods for using the doorbell button and enabling the "#" key as the doorbell output function:

Methods	Use the built-in doorbell button on the controller	Activate the # key as a doorbell output function
Images
Activation Method	Press the doorbell button	Activate the # key as the doorbell function, using the gray alarm wire  from the main wiring as the doorbell output
Notes	--	In the configuration where the # key is used as the doorbell button, the alarm output function will serve as the doorbell output, and there will be no alarm functionality.

2. Wiring and Configuration for Doorbell Functionality in Home Version (H) Series Controllers  

Home Version (H) Series Controller - Wiring and Configuration for Doorbell Functionality
Types	Controller without Doorbell Button	Controller with Doorbell Button
Product Images
Applicable Models	AR-321-H、AR-331-H、AR-721-H、AR-725-H、AR-888-H	AR-757-H
Functions	Activate the # key as a doorbell output function	Use the built-in doorbell button on the card machine	Activate the # key as a doorbell output function
Configuration Method	For detailed instructions, please refer to 2-1. Home Version (H) Series Controller without Doorbell Button	For detailed instructions, please refer to 2-2. Home Version (H) Series Controller with Doorbell Button Using the Card Machine's Built-in Doorbell Button	For detailed instructions, please refer to 2-3. Home Version (H) Series Controller with Doorbell Button Using the # Key as the Doorbell Button