Epcom PROAUDIO SF-4120UC Manual de operação - Página 9

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5. OPERATION ILLUSTRATION
Local/remote volume control
Local volume control: Turn the switch corresponding to CH1-REMOTE to OFF, and the other
channels are the same.
Remote volume control: Turn the switch corresponding to CH1-REMOTE to ON, and the other
channels are the same.
INPUTx priority control
INPUTx normal priority: Turn the switch corresponding to INPUTx Priority to OFF.
INPUTx high priority: Turn the switch corresponding to INPUTx Priority to ON.
Description:
When INPUTx is set to high priority, the priority of INPUTx is higher than that of LINE1 and
LINE2. It means once the matrix switch between INPUTx and output channel CHx is turned
on, the matrix switch between LINE1, LINE2 and output channel CHx will be automatically
turned off, regardless of whether the switch between LINE1, LINE2 and CHx is turned on.
When INPUTx is set to normal priority, INPUTx and LINEx have the same priority.
Phantom function
Turn on the Phantom function: Turn the dial switch corresponding to INPUTx Phantom to ON.
Turn off the Phantom function: Turn the dial switch corresponding to INPUTx Phantom to OFF.
5. Description of ALARM and EMC IN
The ALARM and EMC IN trigger and input interfaces are shown in the figure above. For EMC
trigger, you only need to input audio to the EMC IN interface to trigger. When triggered, the
home page of the screen interface will display: "EMC audio input".
Before using the ALARM function, you need to insert a TF card in the front panel, and put the alarm
audio file in the specified folder of the TF card. The specific folder is named
ALARM1 corresponding folder: _ALARM1_FOLDER
ALARM2 corresponding folder: _ALARM2_FOLDER
Note:
The folder must be placed in the root directory of the TF card. Each alarm audio folder can
only contain one audio file. If multiple audio files are placed, only one can be recognized.
When an alarm is triggered, the audio file under the corresponding file will be played
cyclically, and the screen interface will automatically jump to the home page, and the alarm
information will be displayed below.
6. MUTE description
The MUTE trigger port is shown in the figure above. To mute a channel, just short-circuit the
port in the figure, but note that the corresponding channel will not be muted when EMC is
triggered.
9
ALARM
EMC IN
G
G
+
1
2
MUTE
CH4
CH3 CH2
CH1