877.9 Alarm InputWhen you click Alarm Input on the Advance mode menu, the Alarm input setting menu appears.You can set in this menu to control the external alarm input of I / O port on the rear of the devicelinked to FTP, SMTP, and HTTP sending function.PT control7.9.1 SettingSensor input 1: Click it on for using external sensor which is connected to sensor input1 of thecamera I / O port. Trigger condition: Select High signal output and Low signal output as your alarm. Camera move: Pull down the window to select the camera preset position.