Kramer Electronics Ltd. USER MANUAL ELECTRONIC SWITCHERS Models: VS-55, VS-55A, VS-55V, VS-55YC IMPORTANT: Before proceeding, please read paragraph entitled "Unpacking and Contents" Kramer Electronics LTD.
Contents 1 INTRODUCTION 2 1.1 1.2 A Word on Video Switchers Factors Affecting Quality of Results 2 2 2 3 4 SPECIFICATIONS HOW DO I GET STARTED? UNPACKING AND CONTENTS 3 4 4 4.1 Optional Accessories 4 5 ELECTRONIC SWITCHERS 5 5.1 5.2 5.3 5.4 Getting to Know Your VS-55 Switcher Getting to Know Your VS-55A Switcher Getting to Know Your VS-55V Switcher Getting to Know Your VS-55YC Switcher 5 6 7 8 6 INSTALLATION 9 6.
1 INTRODUCTION Congratulations on your purchase of this Kramer Switcher. Since 1981 Kramer has been dedicated to the development and manufacture of high quality video/audio equipment. The Kramer line has become an integral part of many of the best production and presentation facilities around the world. In recent years, Kramer has redesigned and upgraded most of the line, making the best even better.
2 VS-55 VS-55A VS-55V VS-55YC Configuration Dual 5x1 5x1 5x1 5x1 Inputs 5 dual signals, on RCA connectors 5 stereo audio, 1Vpp/50 k on RCAs 5 Composite / single Component, 1Vpp/75ohm on BNCs 5 s-Video (Y/C) 1Vpp/75ohm (Y), 0.
3 HOW DO I GET STARTED? The fastest way to get started is to take your time and do everything right the first time. Taking 15 minutes to read the manual may save you a few hours later. You don’t even have to read the whole manual. If a section doesn’t apply to you, you don’t have to spend your time reading it. 4 UNPACKING AND CONTENTS The items contained in your Kramer accessory package are listed below. Please save the original box and packaging materials for possible future transportation and shipment.
5 ELECTRONIC SWITCHERS This section describes the controls and connections of your switcher. Understanding all the controls and connections helps you realize the full power of your switcher. 5.1 Getting to Know Your VS-55 Switcher The Kramer VS-55 is a high quality, dual wideband switcher for use with any set of dual signals such as stereo audio, s-Video (Y/C), balanced audio, etc. It allows one of up to five dual sources to be routed to one dual output.
5.2 Getting to Know Your VS-55A Switcher The Kramer VS-55A is a high performance 5x1 switcher for stereo audio signals. Using RCA connectors, one of up to five sources can be routed to an output. The VS-55A can be used as an independent audio switcher, but is also designed to easily link with other VS-55 series Kramer switchers such as the VS-55V for composite video, or the VS-55YC for s-Video, to form “audiofollow-video” systems.
5.3 Getting to Know Your VS-55V Switcher The Kramer VS-55V is a high performance 5x1 vertical interval switcher designed for composite video signals. One of up to five sources can be routed to one monitor, projector, or other receiving device. Since it switches during the vertical interval, transitions are glitch-free when sources share common reference sync. The LINK connector is designed to allow the use of a VS-55A to form “audio-followvideo” systems.
5.4 Getting to Know Your VS-55YC Switcher The Kramer VS-55YC is a high performance 5x1 vertical interval switcher designed for s-Video (Y/C) signals. One of up to five sources can be routed to one monitor, projector, or other receiving device. Since it switches during the vertical interval, transitions are glitch-free when sources share common reference sync. The LINK connector is designed to allow the use of a VS-55A to form “audio-followvideo” systems.
6 6.1 Rack Mounting The Kramer VS-55 series switchers may be rack-mounted in a standard 19” (1 or 2U) EIA rack assembly, using a special Adapter (RK-50R - 1U or a 2U model) and a mounting bracket (see section 4.1). They can also be table mounted using their rubber feet or the provided mounting brackets. These devices do not require any specific spacing above or below the unit for ventilation. To rack mount any of the machines, follow the installation instructions enclosed with the adaptor.
8.2 Extending a Switcher Figure illustrates typical switching extension setup using two VS-55V switchers to create a 10x1 switcher. First, connect a dual or shielded cable between the RCA EXT connectors of the machines. An audio cable with two RCA connectors at the ends will do, if the distance between the switchers is no more than 5 meters. Connect a “T” connector to the output of switcher 1.
8.3 Parallel Signal Switching Figure illustrates a typical setup for switching s-Video and Audio signals in parallel, thus forming an Audio follow video switcher. For parallel switching, as many switchers may be added as needed. For example, three VS-55V switchers may be operated in parallel, forming a YUV or and RGB 5x1 switching system. Connect a 9-pin D-sub to 9-pin D-sub flat cable between the “ LINK” connectors of the switchers.
! " # All the switchers of the VS-55 family may be contact-closure remote controlled via the “ LINK” connector. The distance between the switcher and the remote contact-closure assembly should preferably no be more than 10 meters. Use table 5 below for identification of the 9-pin D-sub pin numbers and their use. Connect a 9-pin D-sub male plug and cable (screened or flat) into the LINK connector of the VS-55 family switcher. Identify the wires corresponding to the relevant pins in table 5.
10 ' 10.1 Video Signal Problem No video at the output device, regardless of input selected. Video level is too high or too dim. Noise bars "roll" up or down in the output image or: Low Frequency Hum in the output signal Remedy Confirm that your source and output devices are powered on and connected properly. The input of your machine should be of an identical signal format at the output of your source.
LIMITED WARRANTY Kramer Electronics (hereafter Kramer) warrants this product free from defects in material and workmanship under the following terms. HOW LONG IS THE WARRANTY Labor and parts are warranted for seven years from the date of the first customer purchase. WHO IS PROTECTED? Only the first purchase customer may enforce this warranty. WHAT IS COVERED AND WHAT IS NOT COVERED Except as below, this warranty covers all defects in material or workmanship in this product.
For the latest information on our products and a list of Kramer distributors, visit our Web site: www.kramerelectronics.com, where updates to this user manual may be found. We welcome your questions, comments and feedback. Safety Warning: Disconnect the unit from the power supply before opening/servicing. Caution Kramer Electronics, Ltd. Web site: www.kramerelectronics.com E-mail: info@kramerel.
