Establishing A Tie; Reading The Leds; Viewing Or Changing The Switching Mode - Extron electronics MPX 423 A User Manual

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 (AV) 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 AV tie.
2. Press an Output button to select the output.
3. Press an Input button to select 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 AV mode
• A lit Input LED represents a video-only tie.
• A blinking Input LED represents an audio tie.
A blinking Audio I/O LED represents audio that follows the video signal.
•
• An active Video LED is always lit.
NOTE: A blinking 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.
Output/Audio button
2.
Press and hold the Mode button for approximately 3 seconds. The Single and Separate
LEDs light. One is lit solidly, one is blinking. The blinking LED indicates the currently
active switching mode (Single or Separate).
COMPUTER
OUTPUTS/ INPUTS
1 2 3 4
AUDIO
1
2
MODE SINGLE SEPARATE
COMPUTER
OUTPUTS/ INPUTS
AUDIO 1 2 3 4
1
2
MODE SINGLE SEPARATE
Mode button
MPX 423 A • Operation 10