Sanyo VDC-HD3100/HD3100P - Manual (Page 7)

For the detailed procedures for connecting terminals and cables, refer to the “Connections” section.
Use these coupling holes to mount the camera to the separately-sold base bracket.
Use this socket to connect the camera to your PC to enable network operation.
Use this cable to connect a 24 VAC or 12 VDC power supply.
There is no power indicator on the camera.
Alarm input cable: Connect an external switch, infrared sensor, or other device to detect alarm conditions
such as the entry of an intruder.
Alarm output cable: Connect a buzzer, lamp, or other alarm device.
Introduction 7/15