Matrix Visionpro System Manual

Matrix VISIONPRO System Manual 209
CHAPTER 10 Maintenance and
Troubleshooting
Power Down Mode
VISIONPRO provides a special facility where-in, during power failure a trunk line is connected directly to a station.
This is known as Power Down Mode. When mains power supply resumes, the PBX also starts functioning normally.
This change over from normal operation to power down operation and again back to normal functioning is
automatic and it is taken care of by the system itself.
During power failure condition, external calls can be made from such a station. Also the incoming calls on that trunk
can land on that station. In this way, your link to the outside world is retained even during the dark-outs.
How it works
During power down mode, by default, trunk1 gets connected to station 21. During this condition, as you go OFF-
Hook from station 21, you will get the Trunk Dial Tone. So, even during power down condition, you can dial external
numbers using the system.
At the time of power failure as well as when power resumes, all ongoing calls will be disconnected.
Trunk Power Down Station
L1 21

Matrix Visionpro Specifications

General

Brand	Matrix
Model	Visionpro
Category	PBX
Language	English