IQ Mixer / Multiplexer Hardware Installation
DSPI | ENABLE |
POWER |
POWER |
POWER |
| RS232 |
|
1 | DSPI | ENABLE |
LOOPBUS |
| POWER |
CROWN | LOOP 2 | POWER |
| BUSCROWN | POWER |
Fig. 3.1 An IQ System with a PC Host Computer and Two Mixer/Multiplexers
3 Hardware Installation
The installation of an IQ mixer/multiplexer consists of two major parts: installing the hardware and con- figuring the software. This manual deals only with hardware installation. Refer to the appropriate soft- ware manual for instructions in setting up and oper- ating your unit.
Provide adequate cooling if the unit will be used in a hot environment. Allow one empty rack space (1.75 inches or 4.4 cm.) between each unit if more than four units will be stacked in a cabinet. Each empty rack space should be sealed with a blank rack panel.
The hardware installation is divided into 4 steps:
1)connecting to a host computer, 2) connecting to the Crown Bus, 3) connecting the audio inputs and outputs and 4) connecting auxiliary devices.
3.1 Connecting to a Host Computer (Step 1)
An IQ host computer is an IBM® PC compatible or Apple® Macintosh computer which is used to con- figure or control/monitor part or all of an IQ System. Depending upon the design of your IQ System, it may or may not require a host computer during normal operation.
How the mixer/multiplexer will be used will deter- mine whether or not it will need to be connected directly to a host computer. If the unit will be con- nected to the Crown Bus it will not need to be connected directly to a host computer. The following circumstances require connection to a host com- puter:
•If a Crown Bus will not be used, the mixer/mul- tiplexer will need to be connected to a host computer so the software inside the unit can be configured. Afterward, if manual control is not required, the host computer can be discon- nected.
•If the mixer/multiplexer must be configured be- fore it is installed into an IQ System, it must be connected directly to a host computer for con- figuration. The onboard battery of the unit will maintain its software configuration for up to 60 days without it being plugged into an AC source.
•If the mixer/multiplexer will be used as an IQ interface (Option 1) it will need to be con- nected directly to a host computer.
One of the advantages of connecting directly to a host computer is that a separate IQ interface (IQ- INT) is not required. If you plan to configure the unit
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