Configuration
Audio level
The controls INPUT 1 and INPUT 2 allow adjusting a MIC/LINE input’s sensitivity. These
controls let you optimally adjust the incoming signals to the internal operation level. The
INPUT 3 control is for matching the incoming line level signal of the RCA input AUX IN to the
operating level of the AXM 12A.
Display
Home screen
The home screen appears a few seconds after switching the AXM 12A on.
Control
Turn the MENU/ENTER rotary encoder to edit the level setting or press the MENU/ENTER
rotary encoder to enter the menu (see Menu, page 12).
Dimmed mode
In the menu you can set the dimmer off time of the display. After the time has elapsed without
any operation of the MENU/ENTER rotary encoder, the display will enter the dimmed mode. In
dimmed mode, the display brightness will be reduced to the value “Dim Bright” as set in the
menu. Editing level settings by turning the MENU/ENTER rotary encoder is locked in dimmed
mode, to avoid accidental volume change. Press the MENU/ENTER rotary encoder once to exit
the dimmed mode.
Indications
The home screen indicates
• the current level setting (e.g. +2dB),
• the selected factory/user setting number (e.g. U1) and
• input level meters for all three audio inputs.
If the setting was edited, an “E” (Edited) is indicated next to the setting number.
Next to the current input level the level meters IN1, IN2 and IN3 indicate:
• “PK” (Peak), if the signal level of an audio input reaches 6 dB below the maximum input
level, or
• “LIMIT”, if the limiter of the integrated power amplifier is active.
6
6.1
6.2
6.2.1
AXM 12A Configuration | en 11
Bosch Sicherheitssysteme GmbH User manual 18-Mar-14 | 02 | F01U290507