Dahua VTO1220A User Manual

1
3 Debug VTO
The VTO has digital system and analog system. Please read the following contents before
installing system.
Here takes VTO1220A as an example.
3.1 Digital System
3.1.1 System
See Figure 3- 1 Digital system.
Figure 3- 1 Digital system
Note:
VTO port (dual port VTO refers to Figure 1-4 no. 2 port) connects to IN port on switch.
Among switch port 1-6, select any one port to connect to VTH which allows switch to
power supply VTH.

Dahua VTO1220A Specifications

General

Brand	Dahua
Model	VTO1220A
Category	Intercom System
Language	English