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USB socket
This USB interface, together with the supplied software, enables the transfer of files from the 73fifty
to any Windows PC or laptop.
73fifty Blackbox
The 73fiftyBlackbox is designed for recording for HSE purposes. The unit records to an internal
hard disk. Files can be uploaded on to a Windows PC in the same manner as for the standard
(blue) 73fifty. Once the disk is full (after 44 to 83 hours dependent upon the bitrate selected) the
unit loops automatically – i.e. the earliest files recorded are deleted to make way for the new ones.
Back of the unit – 73fifty and 73fiftyBlackbox
Power-cable
Input sockets
socket
Input sockets
Connect the video and audio sources which are to be recorded here.
Output sockets
These sockets enable video and audio connections to a monitor for video playback.
Note: The 73fifty operates in a similar manner to a domestic video recorder.
During video playback the picture visible on the monitor is that which has been recorded by
the 73fifty.
When the unit is idle or recording, the image shown on your monitor via these sockets is a
pass-through signal (i.e. is identical to the input signal.) In order to monitor how the 73fifty
has recorded this signal, please use the QC socket.
QC socket
This socket outputs a "quality control" display which is a decode of the video stream. This is
indicative of the mpeg encoding and will lay behind the live video by approximately 2 seconds.
Monitoring the QC output will enable the user to check that the 73fifty is recording successfully, and
to monitor the quality of that recording. Note: that the screen will show a "QC" logo in the top
corner to indicate that the picture shown is for quality control purposes and NOT the live video.
NETmc Marine 73fifty Manual Rev 5.8 July 2011
Output sockets
QC socket
Auxilliary
Trigger
socket
connector
4 of 38
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