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DVR-3901 Installation and Operation Manual
Chapter 5: Functions and Controls
Functions and Controls
The following section describes the most-used functions of the
DVR-3901 Digital Video Recorder, and the procedures for using
parameters to customize them.
Video
The DVR-3901 supports one digital video input via an SDI input port.
The SDI input is 270 MHz, and complies with SMPTE259-C. The
module outputs one channel of SDI video at 270 MHz and one
composite video output for monitoring purposes. The video processing
is 10-bit. The video compression and decompression method is 8-bit
M-JPEG.
Selecting a Video Standard
Select between 525 or 625 lines for the DVR-3901 video system via the
parameter
VidStdSet
. The SDI input and output must comply with the
video system selection.
For SDI input, the card-edge LED “SDI IN” and the parameter
SdiPrsnt
indicate if SDI input is present. The parameter
SdiStdFb
indicates the detected video standard at SDI input. When the SDI input
video standard is different than the
VidStdSet
, the
StdSetErr
will be
turned on. The alarm is turned on when the “SDI IN” LED is flashing
green.
Setting Color Bars
To show a 75% color bar at output, use the
ColorBar
parameter. This
color bar only affects the output, and won’t be recorded onto disk.
For NTSC monitoring, pedestal setup is controlled via the parameter
Pedestal
.
If a loss of video occurs at the SDI input, the picture on the SDI output
depends on whether the
VLOV_EE
parameter is set to black, 75%
color bar or frozen.
Содержание NEO DVR-3901
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