USER MANUAL - Kramer Electronics Japan Homepage
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1. Check that both units are powered Ensure Cable Length Compensation adjustments are set correctly on the receiver Make sure the CATS cable is terminated correctly per the 568B wiring specification Is the display device powered on and functioning Problem Poor video quality Solution Have all receiver adjustments been performed Check all cable connections Ensure Cable Length Compensation adjustments are set correctly on the receiver The video signal s refresh rate may be set too high for the display Reset to a lower refresh rate in your monitor configuration menu Problem Poor audio quality Solution Powered speakers are required Make sure speaker power is ON Check input source levels from the source device Make sure the audio source is not overdriven or underdriven Problem Green shift or green washout on multimedia signals Solution The standard video model is designed to function with DC coupled signals in which the black level is referenced to 0 volts Nearly all VGA cards function this way Some media servers and VGA DA s however provide AC coupled signals and can cause a green color shift in the video This is a result of the sync clamping on the red and blue channels of the transmitter receiver units For five component RGB H amp V AC coupled video the Cobra Transmitter unit has been designed with full DC restoration capability The Cobra TWA may2. Except as below this warranty covers all defects in material or workmanship in this product The following are not covered by the warranty 1 Any product which is not distributed by Kramer or which is not purchased from an authorized Kramer dealer If you are uncertain as to whether a dealer is authorized please contact Kramer at one of the agents listed in the Web site www kramerelectronics com Any product on which the serial number has been defaced modified orremoved 3 Damage deterioration or malfunction resulting from i Accident misuse abuse neglect fire water lightning or other acts of nature ii Product modification or failure to follow instructions supplied with the product iii Repair or attempted repair by anyone not authorized by Kramer iv Any shipment of the product claims must be presented to the carrier v Removalorinstallation ofthe product vi Any other cause which does not relate to a product defect vii Cartons equipment enclosures cables or accessories used in conjunction with the product WHAT WE WILL PAY FORAND WHAT WE WILLNOT PAY FOR We will pay labor and material expenses for covered items We will not pay for the following 1 Removalorinstallations charges 2 Costs of initial technical adjustments set up including adjustment of user controls or programming These costs are the responsibility ofthe Kramer dealer from whom the product was purchased 3 Shippingcharges HOW YOU CAN GET WARRANTY S
3. CHNOLOGY Setup and Installation 4 Setup and Installation The section describes how to setup and install the Cobra TWA In general the connection and setup procedure at both transmitter and receiver ends is as follows At the transmitter end UR C DU S Connect the source video to the Cobra Series transmitter video input port which is an HD15 connector labeled VIDEO Adapter cables may be necessary if using component s video or composite signals Make your audio connections via the 1 8 3 5 mm AUDIO connector Connect the CATS cable to the rear of the transmitter Apply power on the transmitter The LED should light When the transmitter has been tested and is functioning normally complete installation into a US style wall box or low voltage J Box At the receiver end refer to the receiver user guide ERA Connect the VIDEO OUTPUT HD15 connector to the display unit Connecta 1 8 3 5 mm audio cable to the AUDIO OUTPUT connection Connect the CATS cable to the UTP connection Apply power The LED should light and video should appear on the display make sure display is powered ON To adjust video levels see the appropriate section in receiver user manual With regard to connecting the cables We recommend mounting and connecting all cabling to the Cobra TWA components before applying power Be sure that the CATS cable you intend to use has been tested to comply with the T568B wiring specification see Appen
4. ERVICE 1 To obtain service on you product you must take or ship it prepaid to any authorized Kramer service center 2 Whenever warranty service is required the original dated invoice or a copy must be presented as proof of warranty coverage and should be included in any shipment of the product Please also include in any mailing a contact name company address and a description of the problem s 3 Forthe name of the nearest Kramer authorized service center consult your authorized dealer LIMITATION OFIMPLIED WARRANTIES All implied warranties including warranties of merchantability and fitness for a particular purpose are limited in duration to the length of this warranty EXCLUSION OFDAMAGES The liability of Kramer for any effective products is limited to the repair or replacement of the product at our option Kramer shall not be liable for 1 Damage to other property caused by defects in this product damages based upon inconvenience loss of use of the product loss oftime commercial loss or 2 Anyother damages whether incidental consequential or otherwise Some countries may not allow limitations on how long an implied warranty lasts and or do not allow the exclusion or limitation of incidental or consequential damages so the above limitations and exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from place to place NOTE All products returne
5. Kramer Electronics Ltd l KRAMER USER MANUAL Model Cobra TWA Contents Contents 1 Introduction 2 Getting Started 3 Overview 4 Setup and Installation 4 1 Connections on the Cobra TWA 4 2 Installing the Cobra TWA 4 3 Powering the Cobra TWA 5 Solutions to Common Problems 6 Technical Specifications Figures Figure 1 Connecting the Cobra TWA Transmitter Tables Table 1 HD15 Video Connector PINOUT Table 2 T568B CAT5 PINOUT Table 3 Technical Specifications of the Cobra TWA oo Un AARAU EE Oo Introduction 1 Introduction Welcome to Kramer Electronics since 1981 a world of unique creative and affordable solutions to the infinite range of problems that confront the video audio and presentation professional on a daily basis In recent years we have redesigned and upgraded most of our line making the best even better Our 500 plus different models now appear in 8 Groups which are clearly defined by function Congratulations on purchasing your Kramer Cobra TWA The Kramer Cobra Series System extends VGA and audio signals over ordinary Category 5 cable For information on the respective receiver units refer to the appropriate manual included with the receiver The package includes the Cobra TWA and this user manual The Kramer Cobra series products are not compatible with Kramer non Cobra series products 2 Getting Started We recommend that you e Unpack
6. P N 2900 650009 REV 2
7. TION AND REFRESH RATE 1920x1200 60Hz receiver dependent REQUIRED SOURCE IMPEDANCE Video OUT 75 ohms Audio OUT 600 ohms maximum REQUIRED DESTINATION Video IN 75 ohms IMPEDANCE Audio IN 600 ohms minimum AUDIO CHARACTERISTICS Channels Right Left summed Line Level 600 Ohm Unbalanced CONNECTORS Front mount 1 3 5 mm 1 HD15 F Rear Mount 1 RJ 45 1 2 pin phoenix power input TEMPERATURE TOLERANCE Operating 32 to 104 F 0 to 40 C Storage 4 to 140F 20 to 60 C HUMIDITY TOLERANCE Up to 80 noncondensing ENCLOSURE Fits any standard US style wall box or low voltage J Box POWER 12 VDC 180 mA max Consumption 2 2 watts maximum SIZE 2 6 H x 1 3 W x 2 28 D Decora Style 6 6 cm H x 3 8 cm W x 5 8 cm D Fits in a 1 gang Decora faceplate Height is 3 8 9 7 cm including mounting tabs Dimensions do not include wall plate WEIGHT 0 09 Ib 0 04 kg 1 Specifications are subject to change without notice KRAMER SIMPLE CREATIVE TECHNOLOGY LIMITED WARRANTY Kramer Electronics hereafter Kramer warrants this product free from defects in material and workmanship under the following terms HOW LONGIS THE WARRANTY Labor and parts are warranted for three years from the date of the first customer purchase WHOIS PROTECTED Only the first purchase customer may enforce this warranty WHATIS COVERED AND WHATIS NOT COVERED
8. d to Kramer for service must have prior approval This may be obtained from your dealer This equipment has been tested to determine compliance with the requirements of EN 50081 Electromagnetic compatibility EMC generic emission standard Part 1 Residential commercial and light industry EN 50082 Electromagnetic compatibility EMC generic immunity standard Part 1 Residential commercial and light industry environment CFR 47 FCC Rules and Regulations Part 15 Radio frequency devices Subpart B Unintentional radiators CAUTION BO Servicing the machines can only be done by an authorized Kramer technician Any user who makes changes or modifications to the unit without the expressed approval of the manufacturer will void user authority to operate the equipment B gt Use the supplied DC power supply to feed power to the machine BO Please use recommended interconnection cables to connect the machine to other components 9 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 9001 o 32 QS lt a Institute of Quality amp Control Kramer Electronics Ltd Web site www kramerelectronics com E mail info kramerel com
9. dix A Setup and Installation 4 1 Connections on the Cobra TWA The Cobra TWA transmitter supports video and audio signals over CAT5 cable The audio signal is line level R L summed and powered speakers are required Figure 1 shows the Cobra TWA transmitter connections Audio In 12VDC IN Figure 1 Connecting the Cobra TWA Transmitter 4 2 Installing the Cobra TWA The Cobra TWA transmitter can be installed into a 1 gang electrical wall box and fits a standard Decora wall plate cover The installation must conform to national and local electrical codes 4 3 Powering the Cobra TWA The Cobra TWA is designed to be powered by a 12VDC power supply NOTE Observe proper polarity when connecting the power supply to the unit Ensure the positive lead is connected to the positive side of the connector Incorrectly wiring the power connector will damage the unit 4 KRAMER SIMPLE CREATIVE TECHNOLOGY Solutions to Common Problems 5 Solutions to Common Problems There are no user configurable settings on the Cobra TWA In most cases nearly every issue with the Cobra Series can be resolved by checking the CATS termination and making sure that it s pinned to the 568B wiring specification However there may be other problems that cause the system to not perform as it s designed Below are solutions to the most common installation errors Problem No video signal at the receiver Solution
10. need to be replaced with a Universal transmitter Solutions to Common Problems Appendix A Cabling Pinouts Table 1 HD15 Video Connector PINOUT Pin RGBHV RGBS RGsB Composite SVHS YUV VGA Y C 1 Red Red Red C V 2 Greene Green Green C Y Y 3 Blue Blue Blue U 4 5 Gnd Gnd Gnd 6 Red Red Red C V 7 Green Green Green C Y Y 8 Blue Blue Blue U 9 10 Gnd Gnd 11 Gnd Gnd 12 13 HSync C Sync 14 VSync a 15 Gnd Gnd KRAMER SIMPLE CREATIVE TECHNOLOGY Solutions to Common Problems Table 2 T568B CAT5 PINOUT T568B CAT5 Specification Color Orange White Orange Green White Blue Blue White Green Brown White Brown Y NUR exanaena AN Cabling must be the same on both ends Use for Cat5 5e 6 87654321 18 3 5 mm Audio Connection Lm oer ET pp qu mp EC a Note The stereo audio input at the transmitter is summed and output as mono audio on both channels at the receiver Technical Specifications 6 Technical Specifications Table 3 Technical Specifications of the Cobra TWA CABLE REQUIRED Category 5 5e 6 shielded or unshielded twisted pair COMPLIANCE CE FCC Class A IC Class class A VIDEO SUPPORT RGBHV RGB Composite S Video Component Video modes MAXIMUM RESOLU
11. roduct offers Contact Kramer Electronics for assistance CAT5 5e 6 cabling for this product must be pinned to the TIA EIA T568B wiring specification see appendix A We also highly recommend that all CATS cables be pre terminated and tested Cables terminated on site or in an existing infrastructure should be tested before use to ensure compliance with the TIA EIA T568B specification Using incorrectly terminated CATS cables can damage this product Achieving the best performance means e Connecting only good quality connection cables thus avoiding interference deterioration in signal quality due to poor matching and elevated noise levels often associated with low quality cables e Avoiding interference from neighboring electrical appliances that may adversely influence signal quality and positioning your Cobra TWA in a location free from moisture and away from excessive sunlight and dust No operator serviceable parts inside unit Use only the Kramer Electronics input power wall adapter that is provided with this unit Enur Disconnect power and unplug unit from wall before installing or removing device or servicing unit This equipment is not intended for nor does it support distribution through an Ethernet network Do not connect these devices to any sort of networking or telecommunications equipment 1 For example model number AD2512C part number 2535 000251 2 KRAMER SIMPLE CREATIVE TE
12. the equipment carefully and save the original box and packaging materials for possible future shipment e Review the contents of this user manual e Use Kramer high performance high resolution cables You may also need CATS cable 3 Overview Our Kramer Cobra series products are compatible with Cat5 5e 6 data cabling as well as skew free CAT5 5e cabling manufactured for video applications Note that some skew free Cat5 is specific to a particular vendor and is not compatible with our products Ensure any skew free CATS cable is non proprietary prior to purchase installation 1 GROUP 1 Distribution Amplifiers GROUP 2 Video and Audio Switchers Matrix Switchers and Controllers GROUP 3 Video Audio VGA XGA Processors GROUP 4 Interfaces and Sync Processors GROUP 5 Twisted Pair Interfaces GROUP 6 Accessories and Rack Adapters GROUP 7 Scan Converters and Scalers and GROUP 8 Cables and Connectors 2 Download up to date Kramer user manuals from the Internet at this URL http www kramerelectronics com 3 The complete list of Kramer cables is on our Web site at http www kramerelectronics com 1 Overview We recommend using our Kramer Cobra ultra low skew cable BC HDTP solid bulk or BCP HDTP solid plenum bulk available in lengths of 700 210m and 1300 390m CAT cable due to the manufacture method can exhibit much greater skew than standard CAT5 5e and may require skew compensation beyond what the standard p
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