autoTWO Automatic Mixer Operation Manual Biamp Systems | 9300 S.W. Gemini Drive | Beaverton, OR | 97008 | USA | +1.503.641.7287 | www.biamp.
TABLE OF CONTENTS Front Panel pg. 2 Rear Panel pg. 3 Logic Outputs pgs. 4 & 5 Specifications & Block Diagram pg. 6 Warranty pg.
autoTWO INTRODUCTION The autoTWO Automatic Mixer is affordable, extremely versatile, and easy to use. Features include NOM attenuation, adaptive threshold sensing, speech-frequency filtering, manual priority override, selectable channel-off attenuation, and selectable last mic hold. The autoTWO is covered by a five-year warranty.
FRONT PANEL Active Indicator (Channels 1~8): These dual-color LEDs provide indication of two channel functions: channel active & peak level. When a channel is assigned for automixing (gated) operation, the Active indicator will light green whenever the channel is active (on). NOTE: The Active indicator does not light green on a channel assigned for manual (ungated) operation. See Channel DIP Switches on next page.
REAR PANEL Stack In: These plug-in barrier strip terminals provide a balanced line-level Stack In to the mixer. Signal entering here is combined with signals from the input channels, and is then sent to the Main Output section. When using multiple autoTWO mixers within a system, connect Main Output of one mixer to Stack In of the next mixer, and so forth. All mixers except the final autoTWO should be assigned as ‘slaves’ (see Master DIP Switches below).
LOGIC OUTPUTS The autoTWO provides eight logic outputs on a rear panel 9-pin Subminiature D (male) connector. Logic Outputs can be used to control external switching circuits for speakers, cameras, indicators, etc. The autoTWO Logic Outputs are most often used, in conjunction with external relays, to turn off specific speakers when nearby microphones are active (reducing feedback problems).
LOGIC OUTPUTS Logic/Relay circuit autoTWO Pin #1 +12 Volts DC Power Supply − + 12V Relay Contacts normally closed common normally open Logic Output #1 1N4004 Diode Coil Pin #9 Logic Outputs controlling indicators autoTWO Pin #1 +12 Volts DC Power Supply − + Indicator Panel 1.
SPECIFICATIONS & BLOCK DIAGRAM 6
WARRANTY BIAMP SYSTEMS IS PLEASED TO EXTEND THE FOLLOWING 5-YEAR LIMITED WARRANTY TO THE ORIGINAL PURCHASER OF THE PROFESSIONAL SOUND EQUIPMENT DESCRIBED IN THIS MANUAL 1. BIAMP Systems warrants to the original purchaser of new products that the product will be free from defects in material and workmanship for a period of 5 YEARS from the date of purchase from an authorized BIAMP Systems dealer, subject to the terms and conditions set forth below. 2.
DoC AUT201003 EC Declaration of Conformity Biamp Systems Corporation, as manufacturer having sole responsibility, hereby declares that the following described product complies with the applicable provisions of the DIRECTIVES below except as noted herein. Any alterations to the product not agreed upon and directed by Biamp Systems Corporation will invalidate this declaration.
