DDA-4010
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Revision 01
Dual 1 In, 4 Out Mode:
Input A to 4 x Output A, and Input B to 4 x Output B:
With the DDA-4010 set-up in the dual 1 In, 4 Out mode, the DDA-4010 is essentially two independent distribution
amplifiers each with a single input and 4 outputs:
Input signal ‘IN A’ goes to outputs ‘OUT 1A’, ‘OUT 2A’, ‘OUT 3A’ and ‘OUT 4A’; and
Input signal ‘IN B’ goes to outputs ‘OUT 1B’, ‘OUT 2B’, ‘OUT 3B’ and ‘OUT 4B’.
Each of the input’s data rates can be set independently from each other, either ‘Auto Detect’ for automatic
detection of 3G/HD/SD-SDI or ASI rates, ‘3G-SDI only’, ‘HD-SDI only’ or ‘SD-SDI/ASI only’ rates. Either side can also
be individually configured as a reclocking or non-reclocking distribution amplifier.
When an input signal is applied, the corresponding INPUT and data rate LEDs will illuminate.
In this example, INPUT A has been set up for either ‘Auto Detect’ or ‘SD-SDI/ASI only’ data rate
and is being fed with a 270Mb/s data rate signal such as SD-SDI or ASI, and INPUT B has
either been set up for either ‘Auto Detect’ or ‘HD-SDI only’ data rate and is being fed with
an HD equivalent data rate signal such as HD-SDI.
If an input signal that is applied does not match the set data rate, the corresponding input
and detected data rate LEDs will flash and the corresponding outputs will be muted (unless
the Automatic Changeover function has been implemented - see Automatic Changeover
description).
In this example, if Input A has been set for 3G or HD only application and an SD rate has
been applied, both the INPUT A and SD A LEDs will flash.
Automatic Changeover Mode:
With the Automatic Changeover mode enabled, provided the other DA input is present at
the correct set data rate of the current DA, on loss of either input the outputs will
automatically switch to the other DA’s outputs.
In this example, both independent DA’s are operating in either Auto Detect, HD only or
reclocker bypassed modes. INPUT A feeds A outputs and INPUT B feeds B outputs.
On loss of INPUT A, INPUT B takes control of A outputs as well as its own B outputs.
On loss of INPUT A, if A was set for SD-SDI/ASI only rate and INPUT B was being fed with an
HD-SDI signal, INPUT B would not take control of A outputs. A outputs would be muted. The
HD data LED of A would flash to indicate that B’s input, which is currently an HD signal, is
not at A’s set data rate.
Note that when the data rate is set for ‘Auto Detect’, or the DA is set-up for non-reclocking
mode, Automatic Changeover will take place regardless of the second input’s data rate.
A B
INPUT
SD
HD
3G
A B
INPUT
SD
HD
3G
A B
INPUT
SD
HD
3G
A B
INPUT
SD
HD
3G
A B
INPUT
SD
HD
3G
