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ADVANTAGE® VRAM Variable Resource Automixer Operation Manual ®Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. (503) 641-728

8 SETUP LOGIC INPUT DEFINITIONS SCREEN The Logic Input Definitions screen is used to assign specific ‘actions’ to the Logic Inputs (and remote co

9 SETUP LOGIC OUTPUT POLARITY SCREEN Normally, when a Logic Output turns ‘on’ it provides a DC path to ground, which is then used to control ‘activ

10 LOGIC INPUTS Eight Logic Inputs are available on a rear panel 9-pin Sub-D (female) connector. Logic Inputs allow remote control of the VRAM vi

11 LOGIC INPUTS Multiple contact-closures or ‘open-collector’ logic outputs may be wired in parallel to a single Logic Input (see diagram below).

12 LOGIC OUTPUTS The VRAM provides eight logic outputs on a rear panel 9-pin Subminiature D (male) connector. Logic Outputs can be used to control

13 LOGIC OUTPUTS Logic/Relay circuit +12 Volts DCPower Supply−+Logic Output #11N4004DiodeContactsCoilcommonnormally closednormally openVRAMPin #1Pi

14 RS-232 CONTROL The VRAM has an RS-232 Serial Port, which allows it to be controlled by a computer (see Front & Rear Panel Features on pg. 2).

15 RS-232 CONTROL Serial Port: The 9-pin Sub-D (male) connector on the VRAM rear panel provides the RS-232 compatible serial interface signals used

16 APPLICATIONS COURTROOM ±12VDC1input2input3inputch 3 duckenablech 2ch 1padphntmremotepatchpadphntmpadphntmDC out15 wattsclass 2 wiring50/60 Hz~27

17 APPLICATIONS BOARDROOM 50/60 Hz27 wattsclass 2 wiring~27Vlink port linkserial portlogic inputslogic outputs1234567overrideL Roverridesig presmic

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18 SPECIFICATIONS & BLOCK DIAGRAM Frequency Response (20Hz~20kHz @ +4dBu): +0/-0.3dB Phantom Power: +36VDC (7mA/channel)THD + Noise (20Hz~20k

WARRANTY BIAMP SYSTEMS IS PLEASED TO EXTEND THE FOLLOWING 5-YEAR LIMITED WARRANTY TO THE ORIGINAL PURCHASER OF THE PROFESSIONAL SOUND EQUIPMENT DES

1 VRAM TABLE OF CONTENTS Front & Rear Panel Features Setup Logic Inputs Logic Outputs RS-232 Control Applications Specifications & Bl

2 FRONT & REAR PANEL FEATURES ADVANTAGE VRAM Variable Resource Automixer12345678ono FRONT PANEL FEATURES Channel Gate Indicators: These red

3 FRONT & REAR PANEL FEATURES outputs auxiliary inputsauxmain aux 2 aux 150/60 Hz27 wattsclass 2 wiring~27Vlink port link expansionserial portlo

4 SETUP VRAM & VRAMeq parameters are all adjustable using the Windows® 95/98/NT ’PC Control Software’ and serial cable provided with the unit.

5 SETUP CHANNEL SETTINGS SCREEN The Channel Settings screen appears as an overlay of the Mix screen, and is used to adjust individual input param

6 SETUP AUTOMIXER SETTINGS SCREEN The Automixer Settings screen is used to adjust automatic mixing functions, which affect the entire mixer. It

7 SETUP BUTTON DEFINITIONS SCREEN The Button Definitions screen is used to assign specific ‘actions’ to remote control buttons. Although the VRA