Crown Audio IQ-USM 810 service manual Specifications, Mechanical

130447-1 Rev. A IQ-USM 810 Service Manual

2 Specifications

General

Front Panel Controls: Front-panel switches select IQ Address, Baud Rate, factory default preset (P00), and any of 32 user-defined presets (P01–P32).

Rear-Panel Controls: A 3-position selector switch (mic/line/phantom) and a calibrated gain control for each input.

Connectors: Crown Bus: RJ-45 for input/output, RJ-45

for daisy output, RS232: DB9F computer interface for both component and interface modes. Multi-function Port: DB37M for analog inputs, digital inputs, digital outputs, +5VDC, +10VDC and Ground. Audio Inputs and Outputs: 3-pin male removable barrier block con- nectors, Euro-style cable connector supplied. AC Power: IEC320 connector for AC power cord.

Display: A blue front-panel Enable indicator lights to show that the unit is plugged in and AC power is being supplied. An amber front-panel Data Signal Presence Indicator (DATA) flashes whenever commands ad- dressed to the IQ-USM 810 are received. A green front-panel Interface indicator lights when the IQ-USM 810 is being used as system interface. A three-digit digital display indicates the IQ-USM 810’s initialization sequence by displaying each processor’s name as it comes online, indicates the presently selected preset, indicates the IQ address and baud rate while those parameters are being adjusted, indicates when a pa- rameter has been stored in flash memory, and when any parameter is varied from its value within the cur- rently selected preset. Ladder Display: A front panel, sixteen-segment LED display matrix can be set to three different operating modes: Level Meter, Input Gate Status, and Infinity Pattern.

Power Requirements: 100VAC to 240VAC, 35VA nominal.

Protection: if communication is lost, the unit will con- tinue to function with the last commands received.

RS232 Data Communication

Baud Rate: Selectable to 19.2 K, 38.4 K, 57.6 K, or 115.2 K BAUD.

Data Format: Serial, binary, asynchronous; 1 start bit; 1 stop bit; 8 data bits; no parity.

Crown Bus Data Communication

Data Rate: 38.4 K BAUD.

Data Format: Serial, binary, asynchronous; 1 start bit;

1 stop bit; 8 data bits; no parity.

Crown Bus Interface Type: Optically isolated 20 mA current loop.

Operation: Half-duplex.

Transmission Distance: Variable from 200 to 3000 feet (61 to 914 meters), depending upon wire capaci- tance. Typically 1000 feet (305 meters) using shielded twisted-pair wire, #26 AWG or larger. Can be extended with an IQ Repeater.

Audio

Phantom Voltage: +24VDC at 10 mA.

Input Gain Range: +20 dB to –12 dB.

Digital Sampling: 24 bit, 48 kHz.

Input Impedance: 20 k ohms balanced, 10 k ohms unbalanced.

Dynamic Range: Greater than 100 dB (A-weighted, 20 Hz–20 KHz).

Frequency Response: ± 0.5 dB, 20 Hz–20 kHz.

Common Mode Rejection: 50 dB (typical).

Crosstalk: Greater than 80 dB at 10 kHz.

Total Harmonic Distortion: Less than 0.05% THD + N (1 kHz, 0 dBu).

Output Impedance: 100 ohms balanced, 50 ohms unbalanced.

Max Input Level: +32 dBu (line) or +7 dBu (mic).

Max Output Level: +20 dBu.

Control Port

Power Supply: +5VDC and +10VDC outputs are pro- vided. The total output current is limited to 1A.

Outputs

Logic Low: less than 0.1V.

Logic High: 10V (via internal pull-up).

Output Current is limited to 10mA max per pin.

Inputs

Input Impedance: greater than 50 k ohms.

Logic Low: less than 0.5V.

Logic High: greater than 5V.

Analog Range: 0 to 10V (for inputs 9-16 only).

Max Input Voltage: 25V.

Mechanical

Weight: 13 pounds, 4 ounces (6.1 kg).

Dimensions: 19-inch (483-cm) standard rack mount width (EIA RS-310-B), 16-inch (40.6-cm) depth behind mounting surface, and 3.5-inches (8.9-cm) height.

©2000 Crown International, Inc.

Specifications 2-1