Framework And Dimensions; Locally Storing Data; Bi-Directional Talk - Dahua NK8BA4 Quick Start Manual

SD
ANT

3.2 Framework and Dimensions

The following figures show the dimensions of the device in mm [in.]. These images are intended
as a reference only.

3.3 Locally Storing Data

Certain cameras include a SDHC card slot for onboard storage that support a 128 GB Micro SD card.
Dahua recommends using a SanDisk Extreme Micro SD card (or an equivalent substitute) as these
cards have been fully tested without issue and the SanDisk Extreme line is better suited for constant
recording. Lower-grade SD cards meant for multimedia applications will, at times, have questionable
quality and reliability.
Recording to the SD card is first in first out (FIFO). The camera deletes the oldest (first) entry as new
storage requirements arise. The camera does not signal nor make an indication when data is deleted.
Storage time is dependent on a variety of factors such as SD card size, image resolution and video
frames per second.
SD Recording supports video only. Audio is not supported.

3.4 Bi-directional Talk

1. Connect the speaker or the microphone to the Audio Input on the camera and to the input port on
the computer.
2. Connect the earphone to the Audio Output on the camera and to the output port on the computer.
3. Launch Internet Explorer and type the camera IP address in the address bar. Internet Explorer
opens the Login page.
4. Type the Username and Password for the camera. (The default Username and Password is
"admin "). Then, click Login.
5. Click the Talk button to enable bi-directional talk. The button turns orange to indicate the bi-
directional talk is enabled. Click the Talk button a second time to disable the bi-directional talk.
SD card port
GND
Figure 3-2
Insert a Micro SD card for local storage.
Ensure the device is securely earthed to protect
against power surges and lightning strikes.
Not applicable, reserved for future use.
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