MatrixPRO • 16x16 and 8x8 HD/SD-SDI Router • User’s Guide 29
3. Operation
Establishing Groups of Inputs and Outputs
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The MatrixPRO routers can be set up to "lock-out" input sources that are incompatible with
certain output display devices.
SExample: Input channels 1, 2 and 3 are SD-SDI sources and output
channels 1, 2 and 3 are SD-SDI display devices. Input channels 4, 5 and 6
are HD-SDI sources and outputs 4, 5 and 6 are HD-SDI display devices.
Establishing groups like these prevents an input from Group 2 from being accidentally
switched to a Group 1 output.
There are two methods available for grouping inputs and outputs:
•The manual method, using the MatrixPRO front panel. Refer to the “Manual
Grouping” section for instructions.
•The Graphical User Interface (GUI) method. In Chapter 4, refer to the “Grouping
Tab” section for details.

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Use the following steps to create an input/output group manually:
SPrerequisites: Assume that input channel 1 is routed to output channel 1.
No other inputs are assigned to any output.
1. To add output channel 2 to output channel 1 (thus establishing an output group),
press and hold output channel 1 key, then press the output channel 2 key. Both
output keys light.
2. To add output channel 3 to the output channel group, press and hold output
channel 1 key and press the output channel 3 key. All three output keys light.
3. To add input channel 1 to the group, press and hold output channel 1 key and
press the input channel 1 key. All three output keys and the new input key light.
4. To add input channel 2 to the group, press and hold output channel 1 key and
press the input channel 2 key. All three output keys and the two new input keys
light.
5. To add input channel 3 to the group, press and hold output channel 1 key and
press the input channel 3 key. All three output keys and the three new input keys
light.
When an input/output group has been established, it has the following characteristics:
•First, any single input in the group can be routed to the same three outputs.
•Second, when any key in the output group is pressed and held, all members of the
input/output group will light up.
•Third, when that key is released, any input that is routed to the outputs will remain
illuminated.
Note Grouping inputs and outputs does not establish a route. The
input source for a particular output still must be established
using the Video Switching procedure. In addition, there can
be only one input routed to any output or group of outputs.