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INTRODUCTION-
Front Panel
CH 1 INPUT, CH 2 INPUT: balanced female
XLR's. If not using the DataPort for inputs, these
are where you connect the line-level audio inputs
to the DSP-4.
They are electronically balanced with an input
impedance of 8.3k Ohms. If used in an unbal-
anced configuration, the input impedance is 3.7k
Ohms. Input sensitivity is software selectable.
SIGNAL indicator-:This green
LED illuminates when the
DSP-4 detects an input signal
on either channel. Dual bright-
ness levels indicate signal
level. At -40dB fs, it will light
dimly; at -20dB fs it will light
brightly.
RS-232: DB-9 female jack. Use
for serial cable connection be-
tween the DSP-4 and the com-
puter. Connection is required only
for setup and real-time control of
the module. Connection need not
be maintained for use.
POWER indicator: This blue
LED illuminates when the mod-
ule has power properly applied.
Connector & Indicator Descriptions
Chassis Lance - Use this lance
to secure accessory power cord
(if used) with a wire tie.
CH 1 OUTPUT, CH 2 OUTPUT: pseudo-bal-
anced male XLR's. These outputs provide post-
DSP (processed) signal from the DSP-4 for down-
stream devices (amplifiers, monitoring busses,
daisy-chaining the processed signal to a second
amplifier). When using with non-DataPort ampli-
fiers, these outputs should be connected to your
amplifier's input connectors.
EXTERNAL POWER:
2.5mm barrel connector-
Center (+), Outer(-), 15
VDC, 300 mA. Use if your
amplifier does not sup-
ply the required operat-
ing voltage from its
DataPort.
DATAPORT: This is the "in-
put" DataPort. If using with QSC
DataPort products that supply
audio inputs or provide ampli-
fier control & monitoring, this
is where they are connected. If
using this DataPort for audio
inputs, do not apply input sig-
nal to the XLR inputs.
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