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9
Part Names and Functions
ATUC-50CU
Front panel
①
②
③
④
⑤
⑥
⑦
⑧
⑩
⑪
⑫
⑨
①
Power switch
Turns the power of the 50CU on and off.
②
USB terminal
The following operations are possible by connecting a USB
device (mass storage device) such as a USB flash drive or USB
hard drive.
• Recording sound
• Playing buzzer and chime
• Importing/exporting preset data
• Firmware update
NOTICE
• Supports FAT16 and FAT32 file systems
• Maximum storage capacity: 2TB
• Maximum file size: 2GB
• Does not support USB hubs.
• Do not use extension cables.
• Do not attempt to use USB devices (mass storage
devices) that have been cracked, deformed or repaired
using adhesive tape or the like.
• Do not save or create any files or folders unnecessary for
this system on the USB device (mass storage device);
doing so may affect system operations.
• The 50CU is not compatible with USB devices (mass
storage device) with special functions such as a security
function.
③
USB access indicator
Indicates the connection status of the USB device (mass storage
device).
• In an access state: lit green
NOTICE
• Do not remove the USB device (mass storage device)
while the indicator is lit green; doing so may destroy
data.
④
REC (recording) indicator
Indicates the recording status.
• In a recording state: lit green
• In a recording-pause state: blinks green
• While not recording: remains off
NOTICE
• If you remove the USB device (mass storage device)
while in a recording state or recording-pause state, the
recorded file may not be written correctly. Do not
remove the USB device (mass storage device) during
recording.
⑤
DU POWER (DU power supply) indicator
• In a normal state: lit green
• In an abnormal state (such as when a voltage drop occurs in the
48-V output system): blinks green
• In a 50DU/INT disconnected state: remains off
⑥
DU CHAIN indicator
• In a normal state: lit green
• In an abnormal state (such as when 50DU communications
fail): blinks green
• In a 50DU/INT disconnected state: remains off
⑦
CU LINK indicator
• In a CU Link state: lit green
• In an abnormal state (such as when 50CU communications
fail): blinks green
• In a 50CU link cut-off state: remains off
⑧
Remote (remote control) indicator
• In a communication state: lit green
• In an abnormal state (such as when failing in external
transmission retry): blinks green
• In a non-communication state: remains off
⑨
SIGNAL/PEAK indicator
Indicates the audio signal level as follows:
– 60dBFS or higher: lit green
– 20dBFS or higher: lit amber
– 2dBFS or higher: lit red
Adjust the audio signal level such that the indicator will not light
red.
⑩
Display
⑪
BACK button
Returns to the previous or upper screen/item.
Press and hold this button to return to the HOME screen from
any screen.