KRAMER ELECTRONICS LTD. 6
the SMPTE RP-168 standard. A rear-panel output level control is provided to optimize signal level.
The input select function of the
SD-7308
can be controlled by front panel buttons and by RS-232
commands transmitted by a touch-screen control system, personal computer, or other control system.
When no signal exists on a selected input, the LED in the appropriate button flashes. The
SD-7308
automatically recognizes the word length for both 10-bit and 8-bit video.
SD-7388
- an adjustment-free, 8x8 matrix switcher for SDI (serial digital) video signals. It is a true
matrix allowing any input to be routed to any or all outputs simultaneously. It provides automatic
equalization for losses on a 75-ohm co-axial cable, and reclocks each output to provide 8 low-jitter
serial digital outputs. Video standard recognition is automatic, and the
SD-7388
switches during the
vertical interval. The
SD-7388
accepts either analog or serial video as the external source for its
vertical trigger, and any output can be assigned as the sync source. Front panel buttons, RS-232 and
RS-485, can control the
SD-7388
. It is fully compatible with both 10-bit and 8-bit video,
automatically recognizing word length.
SP-11
- (video/audio Processor) can be serially connected between the output of the
SD-7401
and the
input of the analog source for video control/correction. The machine provides camera control and
luminance/white balance correction. The
SP-11
is also capable of performing composite to Y/C
conversion and bi-directional transcoding. The machine allows full control over the video signal:
video gain down to full fade, log or linear definition control, log or linear contrast control, color
saturation control, black level control, red, green and blue controls and a screen splitter control for
“before-after” comparison. The Input switch control is "audio-follow-video".
VM-1411
(Video/Balanced Stereo Audio Distribution Amplifier) can be serially connected between
the
SD-7401
output and the acceptors for video distribution. It is a full broadcast, state-of-the-art
machine, designed for studio and other applications. The
VM-1411
has two inputs, video and audio,
each splitting to 5 outputs. The user may select 2 x 1:5 or 1:10 operation via front panel control
switches. Several
VM-1411
units may be chained through the looping inputs. Output signals are (user
selectable) DC or AC coupled for highest flexibility. Audio outputs are buffered and isolated from
each other, allowing hi-fi balanced audio distribution.
6
SDI TO ANALOG CONVERTER
This section describes all the controls and connections of your converter. Understanding the
controls and connections helps you realize the full power of your machine.
6.1 Getting to Know Your SD-7401 Converter
The Kramer
SD-7401
is a multi-standard, adjustment-free digital to analog converter designed to
accept one SDI (4:4:2 serial digital video) input, and provide one analog output in four common signal
formats. The SDI input is equalized and reclocked, and the output can be set for composite video, S-video
(Y/C), RGsB, or Y, R-Y, B-Y. The
SD-7401
also has an internal 75% color bar generator, whose timing is
based on the SDI input.
The
SD-7401
encodes 525 line signals to NTSC-M and 625 lines to PAL-B. Versions designed for
other standards such as SECAM, PAL-M, and NTSC 4.43 may be available by special request. When
encoding NTSC, the unit may be programmed with or without a 7.5 IRE setup (pedestal).
Panel features of the
SD-7401
are described in Figure 3 and Table 1.
