
General Product Overview
Input
The
SMP 351
can accept up to three HDMI inputs, one component or composite video
input. The
SMP 351 3G-SDI
is identical to the SMP 351 except that it includes the 3G/HD/
SDI input (input 5). Both models accept digital audio embedded on HDMI signals or analog
audio input via captive screw connectors.
•
Inputs 1 (HDMI) and 2 (HDMI) are grouped as channel A.
•
Inputs 3 (component or composite video), 4 (HDMI) and optional input 5 (3G/HD/SDI)
are grouped as channel B.
•
One video and one audio input can be selected and active per input channel.
Encoding and Output
Signals from the two input channels, a background image, and metadata (descriptive
information about data content) are combined in a user-configurable layout and encoded
into streams. The SMP 351 can encode a high quality stream (for recording and optional
live streaming) and also encode a lower resolution stream (for preview within its embedded
Web pages and optional live streaming). See the
Encoder Settings and Layout Presets
Overview
on page 90
for a comparison of the two encoding types (archive and
confidence). The video output can be scaled and its aspect ratio modified. The SMP 351
also outputs high quality encoded HDMI video with embedded audio on a single output for
display on any HDMI display, supporting resolutions up to 1920x1080 at 60 Hz.
TCP/IP
Network
Inputs
Outputs
1:
HDMI/DVI
HDMI/DVI
rear panel
local output
LAN
port
2:
HDMI/DVI
HDMI Loop-
through
(unprocessed)
Channel
A
3:
Analog component
video (YUVp, YUVi)
or composite video
4:
HDMI/DVI
5:
3G/SDI/HD-SDI
(optional)
Channel
B
SMP 351
Deinterlacing,
scaling,
rasterizing,
blending
Frame rate
conversion
Archive
encoding
Confidence
encoding
Back-
ground
PNG file
(internal
storage)
Recording
files
Internal
storage
External
USB
drive
(front or
rear port)
or
AV
Controls
panel
preview
Streamed
archive
output
= Recorded file upload (if set up)
= Optional streamed output
Automatic
*
upload of
recording
to a
network
drive
*
For automatic uploading, set a
default recording destination
(
Configuration
>
System
Settings
>
Default Recording
Destination
) or set up scheduling
with an Opencast Server system
(
Configuration
>
Schedule
Settings
).
Streamed
confidence
output
Figure 2.
SMP 351 Block Diagram
SMP 351 • Introduction
5