LY International Electronics M2189, User Manual

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Public Address System Intelligent Public Address System
5
1—3.1 Prior Input Module (M2821 )
LINE1~LINE8: the ex-factory default of input port sensitivity from line 1 to line 8 of this module is 4V. If the
sensitivity needs to be improved, it can be set as 1V and 2V through jumper according to the operation method as
follows:
Perform operations shown in the figure below at the jumper setting position of the input module:
Input signals of 8 lines of the prior input module are different in priority. Line 1 is the top priority, followed by
line 2, 3, 4, 5, 6, 7 and 8. When signals come from line 1, all signals from line 2, 3, 4, 5, 6, 7 and 8 will be mute;
and others do analogically. After the input signals of 8 lines are sorted according to their priority, they enter the
system as a sound source, which is the “ prior sound source ” on the main interface of the screen. When pressing
the “ prior sound source ” button, you can operate the prior input module correspondingly, such as partition
allocation and volume adjustment.
After the system receives the fire control/disaster alarms, it will forcibly allocate the prior sound source to
partitions where alarms need to be given and the selected adjacent regions. Please refer to descriptions of item
4—9.
1—3.2
Normal Input Module ( M2822 )
LINE1~LINE8: the ex-factory default of input port sensitivity from line 1 to line 8 of this module is 4V. If the
Prior Input Module - III
LINE1 LINE2 LINE3 LINE4 LINE5 LINE6 LINE7 LINE8
High Low
Normal Input Module - III
LINE1 LINE2 LINE3 LINE4 LINE5 LINE6 LINE7 LINE8
Take line 6 as an example:
The sensitivity is 4V when the jumper cap is
covered on the first jumper (left);
The sensitivity is 2V when the jumper cap is
covered on the second jumper (middle);
And the sensitivity is 1V when the jumper
cap is covered on the third jumper (left).
The setting for other lines is the same as that
of line 6.