Crown DCi 4 1250DA, Operation Manual

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page 3
DriveCore Install DA Series Operation Manual
Front Panel Features
Front Panel Features
Indicators:
Fault Indicator (red):
Flashes when the amplifier output channel has stopped operating.
Thermal Indicator (red):
Illuminates when the channel reaches 80 degrees Celsius, indicating the onset of protection
compression. If the temprature continues to rise, the amplifier output will shut off at 98 degrees Celsius and remain off
until a safe operating temperature is present.
Clip Indicator (red):
Illuminates when any of the following conditions are present: Onset of audible clipping, clipped
signal detected at input, clipped signal detected at output, engagement of protection circuits.
Level and Signal Indicators (green):
Three LEDs indicate signal presence and level as follows: -10 = 10 dB below
rated output, -20 = 20 dB below rated output, Signal = -40dBU input level.
Ready Indicator (green):
When this indicator is activated, the amplifier is ready to pass audio.
Cooling Vent Grille
Provides cooling air flow.
Do not block or cover
these vents.
Power Button
Power Ring Indicator (Green) - Illuminates
when the amplifier is plugged into a wall
outlet with acceptable power. NOTE:
Power Button is disabled when AUX port
Sleep circuit is used.
Power Indicator (blue)
Illuminates when the amplifier is ON and
acceptable AC line voltage is present.
Blinks when AC line voltage is outside
±10% range.
Flashes for 4 seconds if Power button
pressed when amplifier is in sleep mode.
Bridge Mode Indicator (yellow)
Illuminates when when Bridge Mode is
activated for the channel pair, only odd
number channel will be active.
Note: DCi 8|600DA (8-channel) model shown. Indications per channel pair are identical for 4-channel models.
Data Indicator (yellow)
Illuminates when data present
on the data network only. Dante
connectivity is not a part of this
indicator.
Back Panel Features
AUX
CLASS 2
WIRING
INPUT
GPIO
ETHERNET
100Mb ACT
DANTE
OUT
+3.3V
IN
PRIMARY SECONDARY
CAUTION - TO REDUCE THE RISK OF ELECTRIC
SHOCK, GROUNDING OF THE CENTER PIN
OF THIS PLUG MUST BE MAINTAINED
4 3 2 1 8 7 6 5
MAC
ADDRESS
SERIAL NUMBER SERIAL NUMBER
BAR CODE
RESET
DATA
PRESET
Auxiliary Connector
3-pin plug-in type connector,
Enables SLEEP mode and
monitoring of AMP STATUS
unless the amplifier is in any of
these conditions: OFF, SLEEP, or
FAULT.
Output Connectors
One four-pole, touch-proof
terminal strip per channel pair.
Accepts up to 10 AWG wire or
terminal forks.
General Purpose
Input/Output (GPIO)
Connect to the amplifier
via RJ-11. There are 2
analog input controls and
2 digital output controls.
Dante*
Connect to a Dante audio
network using Cat5e or
higher wiring. (Cat5 wiring
can be used for purely
100Mbps networks.)
Cooling Fan Outlet
Outlets for cooling air
flow. Do not block or
cover these outlets.
Input Connectors
One 6-pin plug-in
connector per input pair.
High impedance balanced.
*Warning: Only connect to networks that remain inside the building.
Note: DCi DA 8|600 (8-channel) back panel shown. 4-channel model has same features but half as many input/output channels.
AC Power Inlet
20A IEC inlet for detachable
connector; 100–240 V~.
Data LED
Data LED indicates
HiQnet data activity.
Preset LED
Preset LED blinks successively
to indicate preset number
(e.g., if the LED blinks 5 times,
pauses, then repeats, the amp
is on preset 5).
Ethernet*
For monitoring and control
of the amplifier over Cat5e
wiring through the Audio
Architect software.
Reset Switch/Circuit Breaker
If the current draw of the amplifier
exceeds safe limits, this breaker
automatically disconnects the power
supply from the AC mains. The switch
resets the circuite breaker.