60
Figure 4-56
4.9.6
Alarm
You can follow the steps listed below to set.
a) You can connect the external alarm port from the rear panel of the device. Usually the
vehicle left-turn, right-turn, brake and door signal information and etc can be input to the
device via the alarm input device.
b) In the main menu, from Setting to Alarm, you can see alarm setup interface. See Figure
c) This series product support 6-channel level alarm information. You can set its actual
alarm name such as left-turn, right-turn on the Alarm Name item. Check the Overlay
button, you can overlay corresponding alarm information on the record file.
d) If the alarm signal is 12V/24V voltage, the trigger type shall be h igh valid. If the alarm
signal is ground signal, the trigger type shall be low valid.
e) The normal open means the alarm signal is usually disconnect, system can generate an
alarm when the alarm signal closed. The normal close means the alarm signal is usuall y
connect, system can generate an alarm when the alarm signal disconnected.
f)
You need to set for each alarm channel on the Alarm in item if the device has connected
several alarm channels.
Alarm in: Here is for you to select channel number.
Event type: There are two types. Local input/network input alarm.
Local input alarm: The alarm signal system detects from the alarm input port.
Network input alarm: It is the alarm signal from the network.
Enable: Please you need to highlight this button to enable curr ent function.
Type: Normal open or normal close.
Trigger: Here is for you to set activation mode. There are two options: High/low.
Alarm name: You can input customized name here.
Overlay: Please highlight the box here to enable this function. It can overlay alarm
information on the video screen when an alarm occurred.
PTZ activation: When an alarm occurred, system can activate the PTZ operation such as
preset x.
Anti-dither: Here you can set anti-dither time. The value ranges from 5 to 600s. The
anti-dither time refers to the alarm signal lasts time. It can be seem as the alarm signal
activation stays such as the buzzer, tour, PTZ activation, snapshot, channel record. The stay
time here does not include the latch time. During the alarm process, the alar m signal can