Front Panel Security Lockout (Executive Modes); Presets; Mute - Extron electronics RAC 104 User Manual

Front Panel Security Lockout (Executive Modes)

To prevent accidental changes to the controller settings, the front panel controls can be
locked using one of two executive modes. The user turns the executive modes on and
off using either the SIS command (see
page 15) or the Windows-based control program via the RS-232 connector. While an
executive mode is on, the locked controls can be adjusted through the RS-232 device only.
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Presets

The user can program up to three presets for each channel using the SIS commands (see
Preset save and recall
RS-232 connector. The presets allow the user to save the current input gain and output
volume, bass, and treble settings for recall at a later time.
When two channels are tied together, selecting a preset for either channel will set the
volume, bass, treble, and gain for both channels. Input gain for tied channels can be
adjusted independently.

Mute

The user can mute each channel using the SIS commands (see
Windows-based control program via the RS-232 connector.
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RAC 104 • Setup and Control Software
20
Executive mode 1 locks the tone controls and channel selector buttons only. The user
can continue to change the volume via the front panel.
Executive mode 2 locks all the front panel controls.
on page 14) or the Windows-based control program via the
Volume and tone settings can still be adjusted while a channel is muted.
When two channels are tied together, selecting mute or unmute for one channel will
mute or unmute both.
When the user ties a muted channel to a channel that is not muted, the RAC 104
unmutes the muted channel automatically.
Front panel lockout (Executive modes)
Mute
on
on page 13) or the