IC Realtime 1U POE NVR Series, Руководство пользователя

Страница: 24 / 291

Length of open time 3ms max
Length of close time 3ms max
Longevity
Mechanical 50×106 MIN (3Hz)
Electrical 200×103 MIN (0.5Hz)
Temperature -40°F to +158°F
2.4 Two-Way Talk
With a microphone and speaker wired to a recorder and camera it is possible to engage in
two way communication. You can engage two-walk talk from the NVR head end to a
camera or from a remote PC or application to the NVR or IP camera (IP camera must have
an audio input output device connected).
2.4.1 Device-end to Camera
Microphone & Speaker Requirements:
Connect a powered microphone or a pickup to the audio input port, and a speaker to the
audio out port on the NVR’s rear panel. See Figure 2-80. The camera must have a built-in
speaker & microphone or external speaker & microphone connected.
Figure 2-80
Operating Two-Way talk from the recorder to camera
On the local display you can only engage in Two-Way talk with one camera at a time. To
enable Two-Way talk to move the mouse to the top center of the desired camera. A small
control options menu will appear with a microphone icon. Press it to engage in two-way
communication. See figure 2-81.
Figure 2-81
If you wish to simply just listen to the audio of a specific channel without being heard on the
other end simply bring the camera full screen (single split). If you have a speaker plugged in and
microphone is enabled on the camera you will be able to listen in.
13