Q-See QC40198 User Manual page 17

CONTROLS
Go back to real-time monitor status in playback mode.
10 Confirm current operation.
Go to the default button
Go to the menu.
11 Bidirectional talk output
12 Bidirectional talk input
13 USB port
The rear panel is shown below. See Figure 2-2.
Please refer to the following chart for detailed information.
Figure 2-2
Number Function
1 Power button
2 Power input port
3 Alarm input/alarm output/RS485 port
4 Network port
5 USB port
6 RS232 port
7 HDMI port
8 PC input
9 Video CVBS input, audio CVBS input, video
CVBS output, audio CVBS output.
QC40198/QC40196 User Manual