![background image](http://html2.mh-extra.com/html/acti/a4-series/a4-series_hardware-manual_3046933009.webp)
Hardware Manual
A45, A46, A421, A425
Item
Description
1
Audio Output
This jack connects to an audio output device, such as a
How to Connect Audio Input / Output Devices
on page 17.
2
DC 12V Power Input
Connects the camera to an external power adapter (not
Connecting a Power Adapter (Optional)
page 17 for more information.
3
Reset Button
Restores the factory default settings of the camera, including the
administrator’s password. To reset the camera, press and hold
the
Reset
button
for at least 10 seconds.
4
Audio Input
This jack connects to a microphone. See
Audio Input / Output Devices (Optional)
on page 17.
5
Ethernet Port
Connects to a network using a standard Ethernet cable.
6
Digital Input / Output Connects to digital input or output devices, such as an alarm
trigger, panic button, etc. Digital Input (DI) and Digital Output
(DO) devices are used in applications like motion detection,
event triggering, alarm notifications, etc. See
Digital Input / Output Devices (Optional)
on page 18.