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 VM-10xl Video Audio Distribution Amplifier 2 2 3 3 4 4 4 Installing in a Rack 7 5 5.
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/support/product_downloads.asp 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 power cord that is supplied with the unit Warning: Do not open the unit.
3 Overview The VM-10xl is a high-quality 1:10 video audio distribution amplifier using BNC connectors for composite video, and RCA connectors for unbalanced stereo audio signals. The VM-10xl accepts a composite video input and distributes the signal to 10 identical outputs. In particular, the VM-10xl: Includes looping connectors for connecting to a local monitor, other acceptor, or for forming larger systems For example, you can connect 3 VM 10xl units to make a 1:30 video audio distribution amplifier.
VM-10xl – Overview Figure 1: VM-10xl Video Audio Distribution Amplifier Front Panel Feature Function 2 3 4 5 6 7 8 9 AUDIO CONTROL POWER Switch VIDEO CONTROL # 1 Illuminated switch supplying power to the unit LEFT GAIN Trimmer Adjusts the audio signal level for the left channel BAL/ST Button Pushing in selects balanced mono audio operation, releasing selects unbalanced stereo audio operation RIGHT GAIN Trimmer Adjusts the audio signal level for the right channel Enable/Disable Button Pushing
6 Figure 2: VM-10xl Video Audio Distribution Amplifier Rear Panel # Feature Function 10 VIDEO IN BNC Connector Connects to the video source 11 LOOP BNC Connector For looping to increase output availability 12 TERM Button Pushing in selects 75, releasing selects Hi-Z 13 COUPLING Button Pushing in selects DC coupling, releasing selects AC coupling (removing the DC offset of the input signal) 14 VIDEO OUT BNC Connectors Connect to the video acceptors (from 1 to 10) 15 AUDIO IN RCA Connector
4 Installing in a Rack This section provides instructions for rack mounting the unit.
5 Connecting the VM-10xl i Always switch off the power to each device before connecting it to your VM-10xl. After connecting your VM-10xl, connect its power and then switch on the power to each device. To connect the VM-10xl as illustrated in the example in Figure 3: 1. Connect a video audio source (for example, a composite video player) to the VIDEO IN BNC connector and to the left and right AUDIO IN RCA connectors. 2.
Figure 3: Connecting the VM-10xl Video Audio Distribution Amplifier 5.1 Increasing the Outputs You can increase the number of outputs by interconnecting VM-10xl units. The example in Figure 4 illustrates how to connect 3 units to increase the number of outputs from 10 to 30. To form a 1:30 video and unbalanced stereo audio DA, do the following: 1.
2. Connect the video LOOP BNC connector of the: First VM-10xl unit to the VIDEO IN BNC connector of the second VM-10xl unit Second VM-10xl unit to the VIDEO IN BNC connector of the third VM-10xl unit 3. Connect the left and right AUDIO LOOP RCA connectors of the: First VM-10xl unit to the left and right AUDIO IN RCA connectors of the second VM-10xl unit Second VM-10xl unit to the left and right AUDIO IN RCA connectors of the third VM-10xl unit 4.
Figure 4: Increasing the Outputs: Arranging a 1:30 Video Audio DA VM-10xl - Connecting the VM-10xl 11
6 Technical Specifications INPUTS: 1 composite video with loop, 1Vpp/75 with termination switch on BNC connectors 2 balanced stereo audio or mono with loops, on RCA connectors OUTPUTS: 10 composite video, 1Vpp/75 on BNC connectors 10 balanced stereo audio or mono, on RCA connectors MAX. OUTPUT LEVEL: Video: 1.6Vpp, Audio: 26.5Vpp BANDWIDTH (-3dB): Video: 360MHz, Audio: >100kHz DIFF. GAIN: 0.07% DIFF. PHASE: 0.05 Deg. K-FACTOR: <0.
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.
