* Public Address System Intelligent Public Address System
9
II. Minimum system
2
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1
Structure of minimum system
See figure 2-1 for the structure of the minimum system
2
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2
Major characteristics of minimum system
Only an input module is selected, and that is the
prior input module
. No sound source devices need to be added,
and only 4 sound sources built in the MAG host are used: EMC MIC; CHIME/ALARM; INNER CD; and DSPPA
SOURCE.
There are no
alarm input/output modules
(there may be no fire control center since the system is not large).
When encountering a disastrous accident, the
full alarm
button on the host panel can be used to give an alarm.
Save resources as many as possible. Telephone interface and remote partition paging are not provided.
2
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3
Connection of minimum system
The jumper connection between the input port in the prior input card and the built-in sound source is not unique,
the users can change it according to their own needs.
EMC MIC signal outlet
is exactly the transform interface
of emergency microphone of the front panel.
The priority of 4 built-in sound sources is EMC MIC—CHIME/ALARM—INNER CD—DSPPA SOURCE. As
an example, 8 speaker areas are arranged for this minimum system, which share 1 amplifier.
2
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4
Running of minimum system
2—4.1 After confirming that the line is connected well, start the power of the device with a special switch key,
the power indicator light will begin to flash yellow; and the starting time will be about 40s. After it is
started, the power indicator light will stop flashing, and turn green; a language selection interface will
appear on the screen, then you can click the language selection button on the touch screen (optional),
and you will enter the corresponding language’s
main interface
. And also, you can operate it via the
touch pad on the right side of the screen. Move on the touch pad with your finger, and the cursor on the
Figure 2—1 Block diagram of the minimum system
Broadcasting amplifier
Area 1
Broadcasting amplifier
Power time sequencer
Supply power to broadcasting amplifier and other device
Monitor
voice box
Area n
Smart broadcasting system
Prior MIC
