Stereo System User Manual
14
Connections
AC Power Cord
Insert the molded receptacle of the AC power cord into the 
AC power inlet on the back of the RAVE 522aa. Plug the AC 
line connector 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.
CobraNet
Connect one end of a category-5 cable terminated with a 
RJ45 plug into the CobraNet receptacle. Insert the RJ45 
plug into the receptacle with the lock-tab oriented toward 
the bottom of the RAVE 522aa and push firmly until the 
connector locks into place (usually an audible “click” can 
be heard). Connect the other end to the appropriate Cobra-
Net network port.
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 RAVE 522aa and push firmly until the 
connector locks into place (usually an audible “click” can 
be heard). Connect the other end to the appropriate QSCon-
trol.net network port.
Analog Audio Inputs and Outputs
Eight balanced audio inputs and outputs are provided, CH 1 
INPUT - CH 8 INPUT and CH 1 - CH 8 OUTPUT. Plug the 
input signal terminal block connectors into the input recep-
tacles. Connection pin-out is printed on the rear label for 
reference. Refer to the illustrations for balanced and unbal-
anced connections. Use balanced audio connections when-
ever possible.
Omni In
The six Omni In connectors are two-pin terminal block con-
nectors. They can accept contact closure devices (switch, 
relay contacts) or 10k ohm variable resistors. The contact 
closure and logic devices accommodate on/off or state-
change events; the variable resistor input provides full 8-bit 
resolution allowing for incremental-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 chas-
sis or the - pin.
Logic Out
The four Logic Out connectors are two-pin terminal block 
connectors. They provide CMOS logic level compatible sig-
nals for external devices.
Analog audio input- bal-
anced connection.
Logic Out connections. 
Negative (-) terminal is at 
chassis potential. Positive 
(+) terminal logic level is 
switched using software.
CobraNet and QSControl 
connection. Accepts rug-
gedized 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- unbal-
anced connection. Note 
jumper wire between - and 
ground.










