Luma Surveillance LUM-500-DVR-16CH, Technical Reference Manual

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Luma Recorders
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FAQ
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16-channel DVR, you could ask the visitor whom they need to see,
and hear their answer through the microphone.
Note that the AUDIO OUT and VGA AUDIO ports are not tied
to any channel. If you wish to have a 2-way conversation, the
speaker needs to be at the proper location. You can listen from any
microphone, but can only speak through the connected loudspeaker.
What is the LINE IN port used for?
This port is only useful on the Luma mobile app. If you connect a
speaker to the LINE IN port, your voice can be broadcast from your
mobile device to the speaker. This allows two-way communication
between your mobile app and the person sitting at the recorder.
I can’t hear DVR audio through the web interface.
First, check that Audio On is enabled (it shows bright blue). The
icon is above the the left side of the timeline.
Make sure the camera is audio capable. Most analog cameras do not
have attached microphones.
On the 8- and 16-channel DVRs, attach microphones to the Audio In
ports on the rear panel. These four audio ports correspond directly
with channels 1–4. Ensure that the camera and its microphone are
assigned to the same channel.
On the 4-channel DVR, there is only one audio input; it corresponds
to channel 1. Ensure that the proper camera is also attached to
channel 1.
Why can’t I hear audio or move my mouse?
If you selected CVBS video as your display output on your DVR
the local interface is displayed using VIDEO OUT. Your mouse will
only be seen on the VIDEO OUT display. Audio can be heard from
AUDIO OUT.
Even if you connect to a display using an HDMI or VGA cable, these
only show the cameras, and give you no way to change grid view or
control the video with your mouse.
You can use this feature when you want a single person to control
the recorder using the CVBS video while others can only see the
images projected via VGA or HDMI.