User manual BIAMP EQ28X / 8

[. . . ] EQ281/8 & EQ282/8 Digitally Controlled 1/3-Octave Equalizers operation manual ® 6/12/98 Biamp Systems, 10074 S. W. (503) 641-7287 http://www. biamp. com an affiliate of Rauland Borg Corp. EQ281/8 & EQ282/8 TABLE OF CONTENTS Front Panel Rear Panel Setup Logic Inputs RS-232 Control Applications Specifications & Block Diagram Warranty pg. 13 EQ281/8 & EQ282/8 features include: o single-channel (EQ281/8) & dual-channel (EQ282/8) models o 28 digitally controlled filters (per channel) on ISO frequencies o Constant-Q technology provides precision system tuning o filters adjustable ±12dB in 1dB steps or ±6dB in 0. 5dB steps o channel input levels adjustable ±12dB in 1dB steps (plus off) o high-pass filters (12dB per octave) adjustable 9. 1Hz~171. 9Hz o low-pass filters (12dB per octave) adjustable 1. 9kHz~34. 7kHz o eight non-volatile memory presets available (per channel) o logic inputs allow selection of presets via contact-closures o RS-232 serial port for computer or third-party controllers o PC control software for Windows 95 & serial cable included o device number switch & link port for controlling multiple units o baud rate switch provides choice of communications rates o front panel indicators for peak, bypass, & selected presets o balanced inputs and outputs on plug-in barrier strip terminals o optional external pink-noise `masking' generator (PNG200) o modular ±12 Volt DC Out jack for powering external devices o incorporates AES recommended grounding practices o marked and UL / C-UL listed power source ® INTRODUCTION ADVANTAGE EQ281/8 & EQ282/8 provide one or two channels of digitally controlled 1/3-octave equalization in a single rack-space unit. Input levels and 28 filter bands, as well as high-pass & low-pass filters, are all adjusted via computer. [. . . ] Therefore, recall preset actions can be assigned to Remote Control Buttons in the same way they are assigned to Logic Inputs. Left-clicking on Clear opens a drop-down menu, which allows recall preset actions to be cleared from the selected Logic Input (or all Logic Inputs). Left-clicking on Default opens a drop-down menu, which allows recall preset actions to be set back to the factory default for the selected Logic Input (or all Logic Inputs). Left-clicking on Try It causes the recall preset actions currently assigned to the selected Logic Input to be performed by the equalizer. 5 SETUP CONFIGURATION OPTIONS SCREEN The Configuration Options screen is used to select options which customize the operation of the equalizer. At the top of the Configuration Options screen, the Serial Number and Firmware Version of the equalizer will be displayed. The PC Control Software can operate `off-line' (with no product connected) by opening a `new' file for the desired product. The Serial Number and Firmware Version are not displayed for `new' (`off-line') files. Left-clicking on Device Name allows a custom name to be given to the particular equalizer, by entering up to 30 characters of text. The Device Name will be stored in the equalizer memory, and will be displayed on the title bar of the Main screen whenever that equalizer is accessed with the software. Left-clicking on Bypass mode also sets the level control to unity gain will remove the check-mark, and thereby prevent Bypass from changing any current input level settings. Left-clicking on Bypass mode also sets the high-pass and low-pass filters to their extremes will remove the check-mark, and thereby prevent Bypass from changing any high-pass filter or low-pass filter frequency settings. Left-clicking on Restore Defaults will set all Configuration Options back to their factory defaults. 6 LOGIC INPUTS Sixteen Logic Inputs are available on a rear panel 25-pin Sub-D (female) connector. Logic Inputs allow remote control of preset selection via external circuits, such as switches, contact-closures, active driver circuits, and/or `open-collector' logic outputs. From the factory, Logic Inputs 1~8 are programmed to recall presets 1~8 respectively (Channel 1 on an EQ282/8). On an EQ282/8, Logic Inputs 9~16 are programmed to recall presets 1~8 for Channel 2. However, Logic Inputs may be individually programmed to perform other functions, using the PC Control Software and serial cable provided with the equalizer (see Setup on pg. Since Logic Inputs are controlled by switches, contact-closures, etc. , each Logic Input may be assigned two functions (one for switch `closed' and one for switch `open'). Logic Inputs may be programmed to have no effect on the equalizer, but ® instead trigger ASCII characters which affect other ADVANTAGE products via RS-232 (see RS-232 Control on pg. Logic Inputs have the following pin assignments (right-to-left & top-to-bottom): Pins 1~16) Logic Inputs 1~16; Pins 17~25) Ground. 13 12 11 10 9 87 6 54 3 2 1 Pins #1~8 #9~16 Functions Logic Inputs 1~8 Logic Inputs 9~16 common ground Factory Programming Preset Select 1~8 (channel 1 - EQ282/8) Preset Select 1~8 (channel 2 - EQ282/8) switch ground points (not programmable) 25 24 23 22 21 20 19 18 17 16 15 14 logic inputs #17~25 When nothing is connected to a Logic Input, an internal pull-up resistor keeps it at a `high' idle state (+5. 0 VDC). The Logic Input is activated when its input goes `low' (less than +0. 8 VDC), and is de-activated when its input goes `high' (greater than +2. 4 VDC). A Logic Input is controlled in one of three ways: 1) Use an NPN style `open-collector' logic output from an external device (such as an ® ADVANTAGE PMX84 or DRC4+4) to short the Logic Input to ground. [. . . ] An ADVANTAGE RP-S4 is connected to the EQ281/8 Logic Inputs for selecting Presets 1~4. This allows remote control and preset selection, not only of equalization, but of channel levels as well. Equalization and channel levels are controlled via RS-232, while only preset selection is controlled via switches. ® ® ® 10 APPLICATIONS ® ADVANTAGE SPM 522D BIAMP SYSTEMS Portland, Oregon an affiliate of Rauland-Borg Corp. R outputs L R L zone limit main limit 3 zone main level stereo mono -20dB 0dB 2 level 1 level L R 3 2 5 R LR mic 1 patch mic 1 pad 0dB 30dB trim phtm mute power on signal present -20dB 0dB -20dB 0dB 27V ~ 15 Watts MADE IN U. S. A. 50/60 Hz zone out main out limit override limit 1 4 L mic 2 patch +10 inputs 1 2 IR3 gnd gnd high low IR3 IR2 sig pres gnd class 2 wiring chassis gnd override sensitivity 5 level 4 level mic 2 pad 0dB 30dB gnd IR2 trim phtm mute power on signal present 0 10 -20dB 0dB -20dB 0dB serial port DC out remote display remote translator override override +10 ADVANTAGE CPA 130 115V: 3A SB Fuse 115V ® level 2 + input 2 --- gnd + input 1 --- gnd level 1 ADVANTAGE CPA 130 output 2 AC Fuse FU S E 230V: 1. 5A SB Fuse 115/230 VAC --- output 1 + + --stereo mono bridge MADE IN U. S. A. F US E F US E 50/60 Hz 300 Watts max to Room B speakers to Room A speakers ADVANTAGE® EQ282/8 last 2400 9600 19200 27V 50/60 Hz 32 16 8 4 2 1 ~ output input BIAMP SYSTEMS Portland, Oregon an affiliate of Rauland-Borg Corp. output input 15 watts class 2 wiring DC out device # serial port link port baud rate logic inputs channel 2 MADE IN U. S. A. channel 1 ADVANTAGE® RP-S4 Computer, AMX®, or CRESTRON® controller Room A 1 2 ADVANTAGE RP-S4 Room B 1 2 ® Presets 1~4 3 4 3 4 RP-S4 RP-S4 * jumpers removed for momentary operation Equalization of a Mono Sound System with Two Zones This application shows an ADVANTAGE SPM522D providing program source & mic/line mixing to two independent mono outputs for Room A & Room B sound systems, with an ADVANTAGE CPA130 providing power for the speakers in each room. [. . . ]