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10
Connections
AC Power Cord
Insert the molded receptacle of the AC power cord into the AC
power inlet on the back of the DSP 322ua. Plug the AC line connec-
tor into the AC outlet. The power supply will accept from 100 to
240 Volts AC, 47 to 440 Hertz, without any changes. If a different
type of IEC power cord is required than the one supplied with your
522aa, contact QSC’s Technical Services Department.
QSControl
Connect one end of a category-5 cable terminated with an RJ45
plug into the QSControl receptacle. Insert the RJ45 plug into the
receptacle with the lock-tab oriented toward the bottom of the DSP
322ua and push firmly until the connector locks into place (usually
an audible “click” can be heard). Connect the other end to the
appropriate QSControl.net network port.
Analog Universal Audio Inputs
Eight balanced audio inputs are provided, CH 1 INPUT - CH 8
INPUT. They accept everything from mic level to line level signals
and are equipped with software-selectable +48V phantom power.
Plug the input signal terminal block connectors into the input
receptacles. Connection pin-out is printed on the rear label for ref-
erence. Refer to the illustrations for balanced and unbalanced con-
nections. Use balanced audio inputs whenever possible.
Each input has software-selectable +48V phan-
tom power. Use caution when connecting equip-
ment (particularly unbalanced equipment).
Analog Audio Outputs
Eight balanced audio inputs are provided, CH 1 OUTPUT - CH 8
OUTPUT. Plug the output signal terminal block connectors into the
output receptacles. Connection pin-out is printed on the rear label
for reference. Refer to the illustrations for balanced and unbal-
anced connections. Use balanced audio inputs whenever possible.
Omni In
The six Omni In connectors are two-pin terminal block connectors.
They accept contact closure, TTL logic signals, 0-5 VDC control
voltages, or 10k ohm variable resistors. The contact closure and
logic devices accommodate on/off or state-change events; the vari-
able resistor input provides full 8-bit resolution allowing for incre-
mental-change events. Refer to the illustrations for connection
recommendations. NOTE! +48 volts is the absolute maximum that
can be applied to the + pin without damage. Voltage is with
respect to chassis or the - pin.
Logic Out
The four Logic Out connectors are two-pin terminal block connec-
tors. They provide CMOS logic level compatible signals for external
devices.
Analog audio input and out-
put- balanced connection.
Logic Out connections.
Negative (-) terminal is at
chassis potential. Positive
(+) terminal logic level is
switched using software.
QSControl connection:
accepts ruggedized or
normal shell-less RJ45
plugs.
Omni In connections. Vari-
able input must be 10k ohm
variable resistor. Contact
closure input can be a
switch or relay contacts.
These inputs can operate
software “devices”. Nega-
tive (-) terminal is at chas-
sis potential.
Analog audio input and
output- unbalanced con-
nection. Note jumper wire
between - and ground.