Local Basic Operations 192Figure 4-1704.8.3 Alarm InputStep 1 Select Main menu > ALARM > ALARM INPUT,The ALARM INPUT 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, systemcan trigger the corresponding alarm operations when there is alarm signal from thealarm input port to the NVR. Network alarm: NVR trigger corresponding alarm operations when it receives thealarm signal via the network transmission. IPC external alarm: When the network camera connected peripheral device hastriggered an alarm, it can upload the alarm signal to the NVR via the networktransmission. The system can trigger the corresponding alarm operations. IPC offline alarm: When the network connection between the NVR and the networkcamera is off, the system can trigger the corresponding alarm operations.
