User manual
SNC-331DLNN
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3. Connectors and access
On the camera rear, you will find the following connectors:
LED status indicators:
Red = Power
Green (blinking) = Recording
Yellow = no function (WLAN)
ABF (Auto Back Focus):
If you press and hold this button when installing the camera, the picture automatically goes
into focus.
You can also set the focus via the web. See chapter1, item 6.
Connection interface I/O:
G = GND (Ground for alarm inputs)
TX = RS-485 input
RX = RS-485 input
B = RS-485 (D-) output to connect a PTZ camera
A = RS-485 (D+) output to connect a PTZ camera
NA = Not Available
I1 = Alarm input 1
I2 = Alarm input 2
NO = Normally Open, relay output
C = Common, common relay connection
Power supply (via adapter)
Connection
interface I/O
Status LEDs
Reset button
ANT
(no function)
Network
connector
Micro SD card slot
(max. 32 GB)
Audio connector
(input, output)
Video output
ABF
Earthing connection
