Extron Electronics MTPX Plus Series Manual

A SERVICE OF

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Operation, cont’d

MTPX Plus Twisted Pair Matrix Switchers • Operation

3-32

Muting and unmuting audio/RS-232 outputs

Individual audio or RS-232 outputs can be muted or unmuted as follows:

N

Mutes are protected when front panel Lockmode2isselected.Youcanviewthe

status of the 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3-46.

1. Press the Esc button to clear any input button indications, output button

indications, or control button indications that may be on.

2. Press and release the View button.

3. If necessary to select audio and deselect video, press the Video button and/or

the Audio button.

4. One at a time, press and hold the button(s) for the desired output(s) for

approximately 2 seconds. The output button(s) for the selected output(s)

blink to indicate the mute or return to their previous state to indicate the

unmute.

5. Press and release the View button to return to normal switcher operation.

N • YoucanmuteonlyaudioorRS-232(notvideo)outputs.Pressingand

releasing the Video button and the Audio button toggles each selection on

and off.

• WhenyouenterView-only mode, the output LEDs turn on for all outputs

without ties.

• Iftheaudio/RS-232wirepairoftheselectedinputisdenedasRS-232(see

“Deningtheaudio/RS-232wirepair”onpage3-49),theserialoutputis

muted.

• Mutesaresavedtonon-volatilememory.Whenpowerisremovedand

restored, the mute settings are retained.

Example 8: Muting and unmuting an audio/RS-232 output

In the following example, several switcher outputs are muted and unmuted. The

steps show the front panel indications that result from your action.

1. Press and release the Esc button (ﬁgure 3-45).

C O N T R O L

PRESET

ENTER

ESCVIEW

Press the Esc button to clear all selections.

The button flashes once.

Figure 3-45 — Clear all selections

2. Press and release the View button to enter View-only mode. The View button

lights red.

3. To select audio (or RS-232) for viewing and muting, if necessary, press and

releasetheAudiobutton(gure3-46).

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 Thisexampleshowsthefrontpanelindicationsifexample1,example2,and

example3havebeencompleted.