Summary of Contents for Contemporary Research 232-Amp+
- Page 1 Product Manual 232-Amp+ 232-Amp+W RS-232 Stereo Mixer/Amplifier Ver 1.9 February 28, 2014...
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Page 2: Table Of Contents
Amp Gain Response String (VG): ....................... 9 RS-232 Cable Connections ........................ 10 Single 232-Amp+ ............................10 Tuner/232-Amp+ Daisy-Chain ........................10 RK1 and RK1-HD Single Unit Rack Mount ....................11 RK3 AV Tool Rack Kit ..........................11 Safety Instructions ........................... 12 Limited Warranty and Disclaimer ..................... 13 Contemporary Research 232-AMP+... -
Page 3: Overview
232-AMP+ 232-Amp+W The Contemporary Research 232-Amp+ is a compact, programmable mixer/amplifier aimed at integration with flat-panel displays and video projectors. The versatile amp features a stereo line-level display/projector audio input and two mono aux inputs, and outputs stereo sound at 40 watts RMS. The aux inputs mix levels with the stereo input, and can be set to mute or lower other inputs when active, ideal for wireless mics and paging applications. -
Page 4: Specifications
232-Amp+: 5.5" [140mm] wide x 1.1” [28mm] height x 3.5” [86mm] deep 7.7” [196mm] wide with SMA bracket 232-Amp+W: 7.7” [196mm] W x 1.1” [28mm] H x 3.5” [86mm] D Weight: 8 oz [226g] Enclosure: All aluminum with durable black powder coat paint... -
Page 5: Field Setup
Ducking Level – Sets the volume level for the stereo input during ducking – the other mono input will be muted. Input 1 always has priority – use this input for audio from a paging system. Contemporary Research 232-AMP+... -
Page 6: Rs-232 Control Protocol
Commands can be sent back to back at any time without any delay. To allow for rapid, multiple commands, status responses are intentionally delayed by about 125mS, sending the most current status in response to control commands or user actions. Contemporary Research 232-AMP+... -
Page 7: Rs-232 Commands
3=Min gain level 0-63 (Fixed at 0), variable in future 4=Gating threshold level 1-63 (10) 5=Gating hold time 0-50 in 0.1 seconds (15) 00=Ducking off, acts as mixed input 6=Ducking level for the stereo input 0-63 (10) Amp Status Returns Amp/Stereo status string Contemporary Research 232-AMP+... -
Page 8: Terminal Communication Commands
>V21,60 (if you want to skip the ‘=’ sign) Once you’ve refined all the settings, just sent the file to the other 232-AMPs in the site. After that, the installer can use a screwdriver and the DIP switches to tweak volume levels for the room. Contemporary Research 232-AMP+... -
Page 9: Response Strings
2 digits 2 digits < XXXXXX Amp Status Response String (SV): Start Unit Power Volume Mute Stereo U=On 0-63 U=Off M=Off 2 digits M=On < Amp Gain Response String (VG): Start Unit Gain 1 digit < XXXX Contemporary Research 232-AMP+... -
Page 10: Rs-232 Cable Connections
One 232-Amp+ and 232-series tuner can be controlled from one RS-232 control port. The 232-Amp+ will be Unit 1, and the 232-series tuner will be set to Unit 2. The flow of information will start at the tuner, which will respond to Unit 2 commands, passing on Unit 1 commands to the 232-Amp. Contemporary Research 232-AMP+... -
Page 11: Rk1 And Rk1-Hd Single Unit Rack Mount
2. Drill out the two detents, 4.25” apart, on the long bracket, used for mounting AV Tools 3. Mount the 232-Amp+ using the included two 4-40 ¼” screws. RK3 AV Tool Rack Kit Install 232-Amp+ into the center of the RK3 rack mount using included 4-40 ¼” screws. Contemporary Research 232-AMP+... -
Page 12: Safety Instructions
If the video product is dropped or the cabinet is damaged. When the video product exhibits a distinct change in performance, this indicates a need for service. Contemporary Research 232-AMP+... -
Page 13: Limited Warranty And Disclaimer
Limited Warranty and Disclaimer Contemporary Research Corporation (CR) warrants this product to be free from defects in material and workmanship under normal use for a period of two years from the date of purchase from CR. Should such a defect occur CR will repair or replace, at their option, the defective product at no cost for parts or labor.
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