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Connections
AC Power Cord
Insert the molded receptacle of the AC power cord into
the AC power inlet on the back of the BASIS 914lz. 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 supplied with your 914lz,
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 BASIS 914lz and push firmly
until the connector locks into place (usually an audible
“click” can be heard). Connect the other end to the
appropriate CobraNet 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 BASIS 914lz 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 Audio Inputs
Four balanced combo (XLR/TRS) inputs are provided, CH
1 INPUT - CH 4 INPUT. They accept line level signals.
Plug the input signal XLR or 1/4” TRS connectors into
the input receptacles. Connection pin-out is printed on
the rear label for reference. Refer to the illustrations for
balanced and unbalanced connections. Use balanced
audio inputs whenever possible.
Omni In
The two Omni In connectors are two-pin terminal block
connectors. They accept contact closure, TTL logic sig-
nals, 0-5 VDC control voltages, or 10k ohm variable
resistors. The contact closure and logic devices accom-
modate 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 chassis or
the - pin.
Analog audio input- bal-
anced connection.
CobraNet and QSControl
connection. Accepts rugge-
dized or normal shell-less
RJ45 plugs.
Omni In connections. Vari-
able input must be 10k ohm
variable resistor. Contact clo-
sure input can be a switch or
relay contacts. These inputs
can operate software
“devices”. Negative (-) termi-
nal is at chassis potential.
Analog audio input- unbal-
anced connection. Note
jumper wire between - and
ground.