AVer SF2111H series quick guide - Manual (Page 14)

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3. Installation steps
I/O Control Instruction
I/O terminal connector – used in application, for e.g., motion detection, event triggering, alarm
notifications. It provides the interface to:
Digital Input (GND+Alarm) : An alarm input for connecting devices that can toggle between an
open and closed circuit, for
1. GND (Ground) : Initial state is LOW
2. Alarm : Max. 50mA, DC 5V
Example: PIRs, door/window contacts, glass break detectors, etc. When a signal is
received the state changes and the input becomes active.
(1) Use screws to lock the
bottom of camera to the
ceiling or the wall.
(2) Use 3-Axis to adjust the lens
angle.
(3) Close the dome cover. (4) Tighten the screw on the
cover to fix it.