Bellman Visit External Trigger Cable BE9253 The Bellman External Trigger Cable BE9253 connects an external trigger source, such as an existing doorbell, to a compatible Bellman Visit product. It can help Deaf and hard-of-hearing users receive accessible Visit alerts when the connected device is activated. Key Features Doorbell Connection: Connects an existing doorbell or other suitable external trigger source to a compatible Bellman Visit product. Accessible Alerts: Helps Deaf and hard-of-hearing users receive Visit system alerts when the connected external source is activated. Visit System Compatibility: Designed for use with compatible Bellman Visit products, including applications where an existing doorbell is connected to a telephone transmitter. 3.5 mm Connector: Uses a 3.5 mm stereo connector for connection to compatible Visit equipment. Cable Length: Measures 0.5 metres, providing a short and practical connection between devices. Supported Voltage: Supports external trigger sources rated at 2–30 V DC or 3–24 V AC. Datasheet: Linked Here