IQ System® to Host Computer Interface © 2002 by Crown Audio, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A. Telephone: 574-294-8000. The IQ-INT 3 is produced by Crown Audio, Inc. Trademark Notice: Crown, IQ , and IQ System are registered trademarks of Crown International. Other trademarks are the property of their respective owners. Obtaining Other Language Versions: To obtain information in another language about the use of this product, please contact your local Crown Distributor.
3 YEAR THREE YEAR FULL WARRANTY UNITED STATES AND CANADA SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of each NEW Crown product, for a period of three (3) years from the date of purchase by the original purchaser (the “warranty period”) that the new Crown product is free of defects in materials and workmanship.
IQ-INT 3 IQ Interface The information furnished in this manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible situation which may arise during installation, operation or maintenance. If you need special assistance beyond the scope of this manual, please contact our Technical Support Group. Crown Technical Support Group Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A.
IQ-INT 3 IQ Interface Important Safety Instructions 1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water. 6) Clean only with a dry cloth. 7) Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
IQ-INT 3 IQ Interface Quick Install Procedure This procedure is provided for those who are already familiar with the IQ System and would like to install the IQ-INT 3 in the shortest time possible. Less experienced installers or those wishing a full explanation of the installation procedure are encouraged to refer to Section 3. Mounting: 1 Mount the unit into a standard 19-inch (48.3-cm) equipment rack or cabinet, or it can be stacked.
IQ-INT 3 IQ Interface CONTENTS Quick Install Procedure .......................................................................... 5 1 Welcome .............................................................................................. 7 1.1Unpacking ....................................................................................... 7 2 Controls, Connectors and Indicators ................................................. 7 3 Installation ................................................................
IQ-INT 3 IQ Interface Figure 2.1 IQ-INT 3 Controls, Connectors and Indicators 1 Welcome The Crown IQ-INT 3 is an IQ System interface that connects up to four different IQ Bus loops to a host computer. It is a self-contained unit with its own IQ Bus drivers, RS232 drivers and power supply. It has a microprocessor that can be directed by the host computer to send and receive commands and data to and from IQ components connected to its IQ Bus loops.
IQ-INT 3 IQ Interface Figure 3.1 An IQ System with a Host Computer and an IQ-INT 3 3 Installation IQ-INT 3 installation can be divided into the following major parts: Connecting to one or more IQ Bus loops, connecting to the host computer or modem, and setting the communication baud rate. 3.1 Connecting to an IQ Bus Loop The IQ Bus is a serial communication loop designed to transmit IQ commands and data. As a communication standard, it is independent of its wiring.
IQ-INT 3 IQ Interface • Use twisted-pair wire at least 26 AWG in size. Use twisted-pair wire with a shield when interference is a concern. The wire should be of good quality and should have low capacitance (30 picofarads/foot or less). In most cases, interference is not a problem and unshielded wire is a better choice because of its lower capacitance.
IQ-INT 3 IQ Interface 3.2 Connecting to a Host Computer RS232 is the communication standard supported by the IQ-INT 3 for serial communication with a host computer. Figure 3.5 RJ-45 Output to Terminal Block Input RS232 is commonly used with IBM® PCs and compatibles. Because it uses unbalanced signal wiring, it cannot be used for distances over 50 feet (15.2 m). You can use an RS232-to-RS422 adapter for serial communication across distances of greater than 50 feet (15.2 m).
IQ-INT 3 IQ Interface Figure 3.9 IQ Bus Wiring “Loop” from Output to Input of Each IQ Component Figure 3.10 Modem Hookup Figure 3.
IQ-INT 3 IQ Interface Figure 3.12 Baud Rate Settings for the IQ-INT 3 3.2.2 Baud Rate Setting IMPORTANT: Be sure to disconnect the AC power from the unit before changing the communication standard or parameters. Setting the baud rate for RS232 serial communication is accomplished using the four-segment DIP switch shown in Figure 3.12. Switch settings for all possible baud rate settings are shown in the table in Figure 3.12. Use the fastest baud rate possible.
IQ-INT 3 IQ Interface 4 Technical Information The purpose of the IQ-INT 3 is to provide a means for the IQ System host computer to communicate with the IQ components. The interface supports the RS232 serial data standard. It accepts host computer communication rates from 9,600 to 115,200 baud, and can drive up to four independent IQ Bus loops for a high level of fault tolerance.
IQ-INT 3 IQ Interface 5 Specifications General Controls: A four-segment DIP switch located on the rear panel is used to configure the data rate for communication with the host computer. Factory default setting is 115,200 baud. Interface Type: 20-milliamp current loop. Connectors: IQ Bus Input: Four RJ-45 connectors. IQ Bus Output: Four RJ-45 connectors. (The IQ Bus Input and Output connectors are grouped in pairs to accommodate four different loops.) Computer: Female 9-pin “D-shell” connector.
IQ-INT 3 IQ Interface 6 Service Crown IQ products are quality units that rarely require servicing. Before returning your unit for servicing, please contact Crown Technical Support to verify the need for servicing. This unit has very sophisticated circuitry which should only be serviced by a fully trained technician. This is one reason why each unit bears the following label: CAUTION: To prevent electric shock, do not remove covers. No user serviceable parts inside.
Crown Factory Service Information Shipping Address: Crown Factory Service, 1718 W. Mishawaka Rd.
