Operating instructions

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Issue 2
M
ITRE
I
NTEGRATED
A
MPLIFIER
F
EATURES
Universal Inputs.
Each of the universal inputs has a 6 way DIL switch to select the required facilities as shown below :
Note: Each universal input has to be accessed (by linking pins 3 and 4) in order to make the input live.
The green LED on the front panel illuminates when an input has been accessed.
Priority Selection
If priority is set to ‘ON’ then the input will override descending inputs.
The hierarchy in descending order is as follows: Input 1 – Overall Priority
Alarm Tone
Input 2
Input 3
Input 4
Music / Aux – No Priority
CONNECTOR
SPEAK SWITCH
PRESS TO
BUSY
INDICATOR
INPUT
0V (GROUND)
BUSY OPEN COLLECTOR OUTPUT 40V @ 0.5A MAX
BUSY INDICATORS ETC.
+24V TO FEED MICROPHONE PRE-AMP,
CLOSES TO 0V WHEN ACTIVE. SEE SWITCH 2 ABOVE.
ACCESS CLOSE TO 0V TO ACCESS INPUT.
BALANCED SIGNAL INPUT
SEE SWITCH 4 ABOVE
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ON
PHANTOM POWER
BOTH ON = 15V MIC PHANTOM POWER
BOTH OFF = NO PHANTOM POWER
SENSITIVITY
ON = MIC 0.6mV.
OFF = LINE 80mV.
CHIME
ON = CHIME WILL SOUND
WHEN INPUT IS ACCESSED
OFF = NO CHIME
VOLUME RESTORATION/BUSY
ON = VOL REST RELAY & BUSY
OUTPUTS OPERATE WHEN INPUT
ACCESSED
OFF = VOL REST RELAY & BUSY
OUTPUTS WILL NOT OPERATE
WHEN INPUT ACCESSED
PRIORITY
ON = THIS INPUT WILL
OVERRIDE DESCENDING INPUTS
OVERRIDE DESCENDING INPUTS
OFF = THIS INPUT WILL NOT
AND WILL MIX
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