D-Link DCS-2121 User Manual page 38

Night Mode
Night mode allows the camera to use a longer shutter speed when the camera is in a low-light
environment. If the camera is in an area where there is sufficient lighting, Night Mode will not
affect the video stream.
Enable Night Mode: Check this box to enable Night Mode.
Shutter: This sets the longest shutter speed Night Mode will use when Night Mode is enabled
and the camera is viewing a low-light scene.
Audio Setup
Enable Speaker: Checking this box will enable you to send audio to an external speaker (not
included) attached to the external speaker jack of your camera. This will allow you to speak
with another person through your camera.
Volume: This sets the volume level of the external speaker.
Enable Microphone: Checking this box will enable you to listen to audio picked up by the
camera's microphone. This will allow you to hear what is happening near your camera.
Volume: This sets the volume level of the incoming audio.
Note: Higher frame size, frame rate and bit rates will give you better video quality, but they will
also require more network bandwidth. For best viewing results on a mobile phone, we
suggest setting the Frame Rate to 5 fps and bit rate to 20 Kbps.
After making any changes, click the Save Settings button to save your changes, or click the
Don't Save Settings button to discard your changes.
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