Digital Network Public Address & Voice Alarm System
Amplifier Changeover – Amplifier & Zone Status
Switching status
7. Online Interface…: Press this icon and enter submenu to view online interface status of current
amplifier changeover. This submenu (Amplifier Changeover 01-Online Interface) is shown below:
Amplifier Changeover 01-Online Interface
Trigger Mode: Electric Level or Short Circuit mode (mode can be configured in PC software)
Channel: 01 02 03 04 05 06 07 08 (host 8-channel interface INPUTS MODE: LEVEL and
SHORT);
Inputs: In Electric Level mode: it will show as Normal when connection of input circuit is normal; it will
show as Open when input circuit is open or there is no connection to input port; it will show as Short when
connection of input circuit is short-circuit; it will show as Trigger when emergency is triggered. In Short
Circuit mode: it will show as Normal when it’s normal; it will show as Trigger when there is short circuit
input signal.
Outputs: output interface can be controlled manually: short circuit or open circuit (automatic trigger
output mode can be configured in PC software). Check other amplifier changeover status by pressing up
and down icon when there are more than one amplifier changeovers.
Amplifier changeover – online interface
Physical zone working
status
When the main amplifier
has fault, the backup
amplifier will switch over
automatically.