Figure 1- 7 VTH150xA-A8
Figure 1- 8 VTH150xCS -A8
Some 7 ” analog VDP only have power and info indicators, and their shapes vary among
different models. Please see Chart 1- 2.
No.
Name
Description
6
Power
Power works as usual, light on;
7
Info
When there is no announcement or alarm info, light turns on if arm; light
turns off if disarm ;
When there is announcement but no alarm info, light flashes slowly.
When there is alarm info, light flashes intensely.
8
Network
When communication with door station is normal, light turns on; if there is
abnormality, light turns off. Only VTH1500A and VTH1500A-A8 ha ve
network indicator.
9
DND(Do not
disturb)
When DND is on, light remains on; when DND is off, light remains off. Only
VTH1500A and VTH1500A-A8 have DND indicator.
Chart 1- 2
Chapter 2 Basic Function Introduction
2.1 Bidirectional Talk with Management Center
Under any interface, by pressing SOS button, you may immediately switch to call
management center, and if the call goes through, you will hear corresponding audio response
of long and slow beeps from VDP; if the call does not go through; you will also hear
corresponding audio response as short and fast beeps from VDP. You may press SOS button
again to end the call, and VDP will return to standby interface.
When supervisor station calls VDP, VDP will ring, and you may answer by pressing call
button. You may end call by pressing call button again, and VDP will return to standby
interface.
2.2 Visual Bidirectional Talk with Door Station
When door station calls VDP, VDP will ring, meanwhile door station video will be displayed
on screen. You may press call button to answer and then you may perform a bidirectional talk
with the door station, while the screen continues displaying video from door station. You may