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3-25TPX 88 Matrix Switchers • Operation
Muting and unmuting the local audio (TPX 88 A only)
You can mute all local audio (captive screw connector) outputs from the front
panel. Mute or unmute the audio outputs by pressing and releasing the Mute All
button (figure 3-43).
MUTE ALL
Press the button to toggle audio
mute on or off for all outputs.
The Mute LED lights when audio is muted.
The Mute LED is unlit when audio is unmuted.
Figure 3-43 — Muting and unmuting outputs
The mute all function is saved to non-volatile memory. When you cycle power,
muted outputs remain muted.
Individual audio outputs can be muted under RS-232/RS-422 control only.
See chapter 4, Programmer’s Guide, and chapter 5, Matrix Software, for
details.
Front panel security lockout (executive mode)
The front panel security lockout limits the operation of the TPX matrix switcher
from the front panel. When the switcher is locked, all of the front panel functions
are disabled except for the view-only mode functions. See Viewing a configuration
on page 3-13. Other than in view-only mode, if the user pushes a front panel
button when the switcher is locked, the button blinks twice and the switcher does
not otherwise respond to the user’s front panel operations.
To toggle the front panel lock on or off, press and hold the Enter and Esc buttons
for approximately three seconds (figure 3-44). The Enter LED blinks to indicate the
lock’s state change. Release the Enter and Esc buttons. To toggle the front panel
lock state again, press and hold the Enter and Esc buttons again.
ENTER ESC
ENTER ESC
Press and hold the Enter and
Esc buttons simultaneously to
toggle the front panel lock on or
off.
3 seconds
The Enter LED blinks to
indicate the state change.
Release the buttons.
= Blinking LED
Figure 3-44 — Toggle the front panel lock on or off