Extron Electronics MTPX Series User Guide - Manual (Page 46)

Operation, cont’d
MTPX Twisted Pair Matrix Switchers • Operation 3-20
PRELIMINAR
Y
Muting and unmuting audio/RS-232 outputs
Individual audio or RS-232 outputs can be muted or unmuted as follows:
N Audio/RS-232 mutes are protected when front panel Lock mode 2 is selected.
You can view the status of the audio output (muted or unmuted) in Lock mode 2
but you cannot change it from the front panel. See “Setting the front panel locks
(
Executive modes)” on page 3-40.
1 . Press the Esc button to clear any input LEDs, output LEDs, or control LEDs
that are lit.
2 . Press and release the View button.
3 . One at a time, press and hold the output button(s) for the desired output(s)
for approximately 2 seconds. The output LED(s) for the selected output(s)
blink to indicate the mute or return to their previous state to indicate the
unmute.
4 . Press and release the View button to return to normal switcher operation.
N • You can mute only the audio or RS-232 outputs, not video.
• When you enter View-only mode, the output LEDs turn on for all outputs
without ties.
• Mutes are saved to non-volatile memory. When power is removed and
restored, the mute settings are retained.
Example 5: Muting and unmuting an audio or RS-232 output
In the following example, a matrix switcher audio or RS-232 output is muted and
unmuted. The steps show the front panel indications that result from your actions.
1 . Press and release the Esc button (figure 3-28).
ENTER PRESET VIEW ESC
CONTROL
Press the Esc button to clear all selections.
The LED
blinks once.
Figure 3-28 — Clear all selections
2 . Press and release the View button to enter View-only mode. The View LED
lights.
3 . To select audio (or RS-232) for viewing and muting, if necessary, press and
release the Audio button (figure 3-29).
N This example shows the front panel indications if example 1, example 2, and
example 3 have been completed.