4
DHI-VTH2421FW-P Indoor Monitor
1.2.1 Front Panel
Icon
Name
Description
SOS
Tap to alert the call center in case of an emergency.
Menu
Tap to return to the main menu.
Call
Tap to answer the call.
During communication, tap to hang up.
During monitoring, tap to speak to VTO outdoor station.
Monitor
In standby mode, Tap to view video from VTO outdoor station.
Tap again to exit video monitoring.
Unlock
Tap to unlock a door controlled by the connected VTO outdoor
station.
Message
Indicator
Indicated an unread message.
Power
Indicator
The indicator is green when the power supply is normal.
Network
Network
Indicator
Indicates communication with the VTO outdoor station is normal. If
the indicator is off the unit is experiencing a communication error
with the VTO outdoor station.
1.2.2 Rear Panel
