Digital Network Public Address & Voice Alarm System
2.2 Selecting the corresponding partition select keys to open the corresponding partition, or CALL ALL
keys to open all the partitions (This step is not necessary; if there are already selected partitions, the
default is the choice of the partition; if there is no choice, the device will automatically consider
the all-zone choice).You are able to adjust the corresponding partition volume. At the same time, adjust
the input volume potentiometer to independently control to adjust the audio input signal volume.
2.3 MIC1 emergency priority operation; when there is signal input in MIC1, the priority to output of the
audio signal MIC1.
Explanation:
1. The zone power amplifier can input 6 different types of audio signal with different priority level, but only
output type 1 ; this occurs only when the audio input simultaneously, when there is not the high priority of
the audio signal input, will be the lower priority audio the output. But in this continuous process from
output in the high priority to low priority , taking into account the audio signal is not turned off, for example,
the speaking time interval, the normal switch between music, etc. , so it is not immediately converted,
there is an about 3 to 5 seconds of delay.
2. The input sensitivity for each partition can be adjusted from the volume potentiometer on the right side
of the panel, and the size of the output volume can be controlled via the front panel volume knob. When
the audio signal output is "network EVAC", local emergency MIC become invalid , and it automatically
maximum volume output.
3. Zone open and close can be manually controlled or controlled by the host.
Note: When network has the highest priority and broadcast network background signal, the local audio
input is invalid. If the configuration of the local network signal to be the highest priority, when the network
LINE2, LINE1,MIC2,MIC1 input
singnal
Adjust zone or local input volume
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