Unlock Function; Arm And Disarm Function; Arm - Dahua Technology VTH2421F Series User Manual

Password"for details.
● If Reset PWD is turned off, you cannot reset the password.

3.8 Unlock Function

When the VTH is being called, during monitoring, talking and speaking, tap unlock button, and the
VTO will be unlocked remotely.

3.9 Arm and Disarm Function

3.9.1 Arm

Background Information
In case of triggering alarm after arm, produce linkage alarm and upload alarm info.
● Please ensure that the area has been added into arm mode. Otherwise, there will be no alarm
triggering after arm.
● Please ensure that it is in disarmed status. Otherwise, arm will fail.
Procedure
Step 1 Tap
There are two kinds of arm mode depending on the model you are using.
● Home: An arming mode that allows you to arm the system when inside the area of the
alarm system.
● Away: Arm the system when you leave the area of the alarm system.
● Sleep: An alarming mode that allows you to arm the system in the sleep time.
● Custom: Arm the system based on your customized needs.
on the home screen to select an arm mode.
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