User's Manual
264
Figure 4-170
4.8.3 Alarm Input
Step 1 Select
Main menu
>
ALARM
>
Alarm-in Port
.
The
Alarm-in Port
interface is displayed. See Figure 4-171.
Step 2 There are four alarm types.
● Local alarm: After connect the alarm device to the NVR alarm input port, system
can trigger the corresponding alarm operations when there is alarm signal from
the alarm input port to the NVR.
● Network alarm: NVR trigger corresponding alarm operations when it receives the
alarm signal via the network transmission.
● IPC external alarm: When the network camera connected peripheral device has
triggered an alarm, it can upload the alarm signal to the NVR via the network
transmission. The system can trigger the corresponding alarm operations.
● IPC offline alarm: When the network connection between the NVR and the
network camera is off, the system can trigger the corresponding alarm operations.
Summary of Contents for NVR41 series
Page 1: ...Dahua Network Video Recorder User s Manual ZHEJIANG DAHUA VISION TECHNOLOGY CO LTD V4 5 1...
Page 103: ...User s Manual 89 The following figure is for reference only Figure 3 51...
Page 122: ...User s Manual 108 Figure 4 21 Step 3 Set parameters See Table 4 5...
Page 139: ...User s Manual 125 Figure 4 33 Step 3 Set record type See Figure 4 34...
Page 295: ...User s Manual 281 Figure 4 182 Figure 4 183...
Page 416: ...User s Manual...