Extron Electronics MPX 423 A - Manual (Page 22)

Operation, cont’d
MPX 423 A • Operation 3-4
PRELIMINAR
Y
Establishing a tie
When you connect an input with an output in video or audio, you are establishing
a tie. A tie can be a video-only tie (only a video signal is being transmitted through
an output), an audio-only tie (only an audio signal is being transmitted through an
output) or an audio and video (A/V) tie (a video signal and audio signal are being
transmitted together or apart through one or more outputs).
To establish a tie using the MPX 423 A, do the following:
1. Press the I/O button to select a video-only, audio-only, or A/V tie.
2. Select the output using any of the output buttons.
3. Select the input from any of the 12 inputs.
Reading the LEDs
Reading the LEDs of the MPX 423 A matrix switcher is the primary means of
controlling your inputs and outputs. The unit uses a series of LED colors and
actions to indicate the status of each group and/or tie.
When in audio-only or video-only mode
• A lit input LED represents a tie.
• The lit I/O LEDs show the signal type (audio or video).
When in A/V mode
• A lit input LED represents a video-only tie.
• A flashing input LED represents an audio tie.
• A flashing audio I/O LED represents audio that follows the video signal.
• An active video LED is always lit.
N
A flashing output LED represents a muted state.
Viewing or changing the switching mode
To view or change the active switching mode (single or separate) for a selected
output:
1. Press the Outputs/Audio button to select an output (1 or 2). The LED for the
selected output lights.
1
1
OUTPUTS/
AUDIO
MODE SINGLE SEPARATE
INPUTS
COMPUTER
2
2 3 4
Outputs / Audio button
2. Press and hold the Mode button for approximately 3 seconds. The Single and
Separate LEDs light. One will be on solid, one will be flashing. The flashing
LED indicates the currently active switching mode (single or separate).
1
1
OUTPUTS/
AUDIO
MODE SINGLE SEPARATE
INPUTS
COMPUTER
2
2 3 4
Mode button