K R A ME R E LE CT R O N IC S L TD .
Contents 1 Introduction 1 2 2.1 2.2 2.3 3 3.1 Getting Started Achieving the Best Performance Safety Instructions Recycling Kramer Products Overview Defining the 482xl Bidirectional Audio Transcoder 2 2 3 3 4 4 4 4.
1 Introduction Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been providing a world of unique, creative, and affordable solutions to the vast range of problems that confront video, audio, presentation, and broadcasting professionals on a daily basis.
2 Getting Started We recommend that you: Unpack the equipment carefully and save the original box and packaging materials for possible future shipment Review the contents of this user manual i 2.1 Go to http://www.kramerelectronics.com to check for up-to-date user manuals, application programs, and to check if firmware upgrades are available (where appropriate).
2.2 Safety Instructions ! 2.3 Caution: There are no operator serviceable parts inside the unit Warning: Use only the Kramer Electronics input power wall adapter that is provided with the unit Warning: Disconnect the power and unplug the unit from the wall before installing Recycling Kramer Products The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected and recycled.
3 Overview The 482xl is a high−performance audio transcoder for balanced and unbalanced stereo audio signals. The unit has two separate channels (both function independently; use just one channel or both channels simultaneously) that convert: An unbalanced audio input signal to a balanced audio output signal on one channel Balanced audio is more immune to noise and interference.
Figure 1: 482xl Bidirectional Audio Transcoder # 1 Feature UNBAL TO BAL Function L LEVEL Trimmer Adjust the left unbalanced audio output signal level Insert a screwdriver into the small hole and carefully rotate it, trimming the appropriate level 2 3 R LEVEL Trimmer Adjust the right unbalanced audio output signal level L LEVEL Trimmer Adjust the left balanced audio output signal level R LEVEL Trimmer Adjust the right balanced audio output signal level 4 BAL TO UNBAL 5 ON LED Illuminates when
4 Connecting the 482xl i Always switch off the power to each device before connecting it to your 482xl. After connecting your 482xl, connect its power and then switch on the power to each device. To convert the audio input signals at the UNBAL IN (to the balanced audio output) and the BALANCED IN (to the unbalanced audio output) connectors, as the example illustrated in Figure 2 shows, do the following: 1.
Figure 2: Connecting the 482xl Bidirectional Audio Transcoder 4.1 Adjusting the Audio Output Level The 482xl Bi-directional Audio Transcoder comes factory pre-set for 1:1 transparency. Readjusting the 482xl Bi-directional Audio Transcoder upsets this transparency. However, if necessary, you can fine-tune both channels’ audio output levels. To adjust the appropriate audio output levels: 1.
5 Technical Specifications INPUTS: 1 unbalanced audio stereo on a 3-pin terminal block connector; 1 balanced audio stereo on a 5-pin terminal block. OUTPUTS: 1 balanced audio stereo on a 5-pin terminal block connector; 1 unbalanced audio stereo on a 3-pin terminal block connector. MAX. OUTPUT LEVEL: Balanced: 21dBu; unbalanced: 21dBu @max gain.
For the latest information on our products and a list of Kramer distributors, visit our Web site where updates to this user manual may be found. We welcome your questions, comments, and feedback. Web site: www.kramerelectronics.com E-mail: info@kramerel.
