24
Figure 3-1
3.5.2 Connecting Video Output
Video output includes a
T
BNC(PAL/NTSC
BNC
（
1.0VP- P
，
75Ω
）
output and a VGA output.
System supports BNC, VGA and HDMI output at the same time. See
X284H284H284H
Figure 3-2
X.
When you are using pc-type monitor to replace the monitor, please pay attention to the following
points:
To defer aging, do not allow the pc monitor to run for a long time.
Regular demagnetization will keep device maintain proper status.
Keep it away from strong electromagnetic interference devices.
Using TV as video output device is not a reliable substitution method. You also need to reduce
the working hour and control the interference from power supply and other devices. The low
quality TV may result in device damage.
Figure 3-2
3.6
Connecting Audio Input & Output, Bidirectional Audio
3.6.1 Audio Input
These series products adopt BNC port.
Due to high impedance of audio input, please use active sound pick-up. See
X285H285H285H
Figure 3-4
X
.
Audio transmission is similar to video transmission. Try to avoid interference, dry joint, loose
contact and it shall be away from high tension current.
