Product Structure 8
Table 2-7
2.1.6 VTH2221A
Figure 2-8
Press this key to call the Call Center in case of
emergency.
Press this key to return to main menu.
In case of incoming call, press this key to answer
the call.
During talk, press this key to hang up.
During monitoring, press this key to speak to
apartment VTO, villa VTO and fence station.
During speaking, press this key to exit speaking.
In standby mode, press this key to monitor the
main VTO.
During monitoring, press this key to exit monitoring.
Press this key during calling, talking, monitoring and
speaking of VTO, so corresponding VTO will be
unlocked.
If this indicator turns on in green, it represents normal
power supply.
If this indicator turns on, it represents that there are
unread messages.
Table 2-8
Rear Panel Port 2.2
2.2.1 VTH5221 Series /VTH5241 Series
Port positions are slightly different on the rear panel of VTH5221 series and VTH5241 series,
but the same port owns the same function. Taking VTH5221 as an example, specific functions
of ports are introduced, as shown in Figure 2-9.
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