QSC BASIS 922uz, Руководство по оборудованию

Страница: 15 / 28

15
Monitor Chain connection.
See explanation, at left.
In
Out
Monitor Chain
The MONITOR CHAIN connector is a 5-pin terminal block connector. Input and output con-
nections are balanced. The center pin is the shield connection for both the input and output
of the monitor chain. Connection is shown at right. The left-most + and - terminals are for
monitor chain input signals, while the right-most terminals are for monitor chain output sig-
nals. When powered down, a relay connects the input to the output, thus bypassing the
BASIS 922uz in the monitor chain.
RS-232
The RS-232 is an optional utility serial port for accessing advanced features. Connect to an
available COM port on your PC and communicate using a terminal control program such as
Windows Hyperterminal.
Use a normal serial data cable with a DB-9 male plug to connect to the BASIS 922uz. To con-
nect the cable, orient the connector properly, then push into the receptacle until it is firmly
seated; tighten the retaining screws “finger tight”. Communications should be 9600 baud,
no parity, 8 data bits, 1 stop bit, and flow control Xon/Xoff.
Ports
PORT A through PORT D are QSC DataPorts. When using the BASIS 922uz with QSC
DataPort-equipped amplifiers or QSC DSP products (DSP-3, DSP-4) connect to the BASIS
922uz using QSC DataPort cables. The 922uz supports up to eight channels of DataPort
audio and amplifier status monitoring. This can be four 2-channel amplifiers or one 8-chan-
nel amplifier or other suitable combinations.
To connect the cable, orient the connector properly, then push into the receptacle until it is
firmly seated; tighten the retaining screws “finger tight”.
LED Indicators
When the BASIS 922uz is plugged into a properly functioning AC outlet, it will power up and
briefly display a welcome screen on the LCD display.
POWER Indicator- This blue indicator illuminates when the BASIS 922uz is plugged into a
properly functioning AC source. There is no power switch on the BASIS 922uz. This helps to
prevent accidental system shutdowns.
DIAGNOSTIC Indicator- This red diagnostic LED reports several possible operational con-
ditions. During boot-up, it is used to continually blink a “dot-dash” pattern if the power-on
memory self-test fails. During normal operation, if any non-recoverable system fault occurs,
the diagnostic indicator will remain on, requiring a power restart. If this condition persists,
contact QSC’s Technical Services for assistance.
The diagnostic LED is also used to indicate an update is in progress during a remote firm-
ware update cycle. First, the LED will blink slowly, indicating the memory erase cycle, then it
will blink rapidly, indicating the memory write cycle.
NOTE! During a firmware update, it
is critical the unit remain powered on for the entire process in order to complete
successfully.
The diagnostic LED may also be controlled by using the QSControl.net software. This fea-
ture is particularly helpful for identifying a particular unit.
(continued, next page)