Dahua DHI-VTO2311R-WP - Page 14

Quick Start Guide
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Table 1-8 Cable connection
Connect the KEY port of the button model to any one of the alarm input ports of the indoor monitor
(VTH) with a cable thread. After that, tap Setting > Alarm > Wired Zone on the VTH and set the Type
of the alarm input port you chose to connect to the KEY port as Doorbell.