EverFocus DVR-100H - Manual (Page 25)

(3) MULTIPLEXER:
ON/OFF : The user can select Multiplexer connection or One Camera connection
ON : The video input from MUX MAIN MONITOR connector at the rear
panel will be looped through to the main monitor out when the
recorder is not in MENU mode.
OFF : The main monitor output is similar to the video out connector.
(4) Disk Full:
STOP : When the disk is full, the machine will STOP recording.
REWRITE : When the disk is full, the current video will OVERWRITE the existing video
from the beginning of HDD.
MENU
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Left/Right Button: Press or to move the cursor to the left or right
Up/Down Button: Press or to change the value.