Datavideo HDR-1 Instruction Manual page 10

Warning: The power bank is mainly used for emergency
power supply and sustains the device operation in the
event of unexpected DC power loss. The power bank,
however, is not used for powering the HDR-1 recording.
Hence, when the DC power is disconnected, the power
button LED will then start flashing red and as the flashing
gets faster, it means the Power Bank IN port starts to
drain your power bank at a faster rate. You should either
try to reconnect the DC power or stop recording to avoid
file corruption before the power is cut unexpectedly.
Note: File will be corrupted if recording is interrupted
due to unexpected power outage.
GPI Input
GPI input accepts external control signal to trigger
Start/Stop recording.
Note: Please use Pulse Trigger only.
RS-232 Communication Port
RS-232 communication port accepts external control
signal.
HDMI Input and Output Port
HDMI digital video input and output port.
Note: While the recording is in progress, if the HDMI
input is disconnected, the recording will stop. After the
input is reconnected and restored, the HDR-1 will start to
record again, but the audio and video of the content
recorded will become out of sync.
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