8
5 FRONT PANEL DESCRIPTION
5.1 ALTAIR LOGO
The light on this logo is dependent of the system clock settings.
Normally when the unit is operating in stand alone mode it will lights on
blue.
When the unit operates linked to other unit and operating as Master clock, it will also lights on
blue
.
When the unit operates linked to other unit the clock must be operate slaved to this unit and the logo would light
on
green
. See also the 3cMAP program
edit>link
window.
5.2 INPUT INDICATOR LEDS
Each input block includes a multipoint activity led showing diverse information:
Green
. Input signal presence. Level is above -40 dBu
Orange
. Input is reaching nominal point. Level is above 0 dBu.
Red.
Input peak indicator. Level is above +14,5 dBu having a headroom (reserve) of 5 dB before real clipping.
Blue
flashing
. The input has the phantom power activated.
Note: Phantom powering could damage equipment when improper used.
5.3 OUTPUT INDICATOR LEDS
Each output block includes a multipoint activity led showing diverse information:
Green
. Output signal presence. Level is above -40 dBu
Orange
. Output is reaching nominal point. Level is above 0 dBu.
Red.
Input peak indicator. Level is above +14,5 dBu having a headroom (reserve) of 5 dB before real clipping.
5.4 USB PORT
Connect it to a PC equipped with USB. Altair 3cMAP software works with USB or Ethernet but not at the same
time. This connection allows for firmware updates.
5.5 STATUS INDICATOR LEDS
The STATUS led will show the global state of the internal DSP activity.
Green
is the normal state showing everything is running properly.
Red
color indicates a lose of clock sourcing, dsp over occupation, etc. Resume it by cycling the unit or by a better
selection of the processors blocks in use. Verify the clock sourcing state on 3cMAP
Edit>Link
window.
5.6 +48V INDICATOR LED
The +48V led will show one or more phantom power is activated. By default it lights on
blue
.
Note: Phantom powering could damage equipment when improper used.
5.7 COMM INDICATOR LED
This indicator lights whenever there is communication activity to the unit from a host PC. By default it lights on
white color. When the processor is uploading VOICE messages or when firmware updating the led will
momentary light off.
Tiene mas colores o funciones
5.8 LINK INDICATOR LED
This led informs about the state of the LINK connectors activity. By default it lights on white color.
5.9 UNIT SWITCH ON-OFF I-0
Although the design incorporates output muting elements on every individual output, it is advisable to
switch on the unit prior to switch on the speaker amplifiers in order to reduce transients. Switch off process is
cycled inverted, first unit to switch off is the amplifier and then the other elements including the MAP.
Maintain when possible the power amp rule: Amplifiers are the LAST TO SWITCH-ON and the FIRST TO SWITCH-
OFF.
In some installations in particular when some unattended networked elements, this switch must be
always set in the ON state and is only used for maintenance operations. The unit is designed to be connected to
the mains continuously.
MATRIX AUDIO PROCESSOR MAP128 /MAP1216