Operation
ACC2500 Audio Control Center
09/08 12
Idle Mode
When power is applied, the ACC2500 is in the receive or idle mode, allowing any AMI audio to be heard
through the speaker or handset. It is always in this mode unless the unit is transmitting.
The ACC2500 contains an internal or local speaker and a handset that operate as follows:
•
When the handset is in the cradle, or on-hook, audio is heard on the internal speaker. In some
operational modes, this can be changed, i.e., muting the speaker by pressing CTL + VOL Down.
•
When the handset is off-hook, audio is routed to the handset receiver. By using the front panel buttons,
you may optionally select to hear audio through the local speaker in addition to the handset.
Zone Selection
The system can have many zones available to the operator each including one to many speakers or
broadcast assemblies. In order to select the proper zone for a broadcast of any type, the operator must first
select the desired zone. This zone is displayed on the first line of the LCD display.
Note that during installation and programming, the zone label can be changed to a desired display using the
CARD Suite application. By default, if nothing is programmed, the word “Zone” will be displayed on the
first line of the display. This could be changed to “Group,” “Area,” “Z” or any alphanumeric description
of up to eight characters.
After initial power-up, the display will be as shown below where the address of all units and zones is
programmed to be 3 digits in length.
→
Z o n e : _ _ _
The “
→
” in the first location of the first line indicates that the zone selection is active.
To manually select a
zone using the numeric key, enter the desired address or zone. To select zone 123, press “1,” “2,” followed
by “3.” As the digits are entered, the first digit will be display in the third blank and moved to the left as
subsequent digits are entered. If more than the allowed number of digits is entered, the zone entry will be
cleared and the last digit will become the first digit of the new address. After entry of the zone, the display
will appear as shown below:
→
Z o n e : 1 2 3
Summary of Contents for ACC2500
Page 43: ...39 09 08 Circuit Boards...
Page 44: ...Circuit Boards ACC2500 Audio Control Center 40...
Page 45: ...ACC2500 Audio Control Center Circuit Boards 41...
Page 46: ...Circuit Boards ACC2500 Audio Control Center 42...
Page 47: ...43 09 08 Schematics...
Page 48: ...ACC2500 Audio Control Center Schematics 44 Desk Set Line Interface Sheet 1...
Page 49: ...ACC2500 Audio Control Center Schematics 45 Desk Set User Audio I O Sheet 2...
Page 50: ...Schematics ACC2500 Audio Control Center 46 Desk Set Control Microprocessor I O Sheet 3...
Page 51: ...ACC2500 Audio Control Center Schematics 47 Desk Set DSP Block Sheet 4...
Page 52: ...Schematics ACC2500 Audio Control Center 48 Desk Set Tone Key Panel Sheet 5...
Page 53: ...ACC2500 Audio Control Center Schematics 49 Desk Set Power Supply Sheet 6...
Page 54: ...Schematics ACC2500 Audio Control Center 50 Schematic Sheet 7...