Kramer Electronics COBRA R500-2 Stereo Receiver User Manual
Contents
1. 10 Gnd Gnd 11 Gnd Gnd 13 HSync C Sync 14 VSync 15 Gnd Gnd 8 KRAMER SIMPLE CREATIVE TECHNOLOGY Solutions to Common Problems Table 4 T568B CAT 5 PINOUT T568B CATS Specification Pin Color 1 Oranga White 2 2 Orange 2 3 Green White 3 4 Blue 1 5 Blue White 1 6 Green 3 7 Brown White 4 8 Brown 4 Cabling must be the same on both ends Use for CatS 5e 6 Tip Serial Tx DB9 pins Left Audio Ring Serial Rx DB9 pin2 Right Audio Sleeve Serial GND DB9 pin5 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 6 Technical Specifications of the Cobra R300A Cobra R500 2 CABLE REQUIRED Category 5 5e 6 shielded or unshielded twisted pair COMPLIANCE CE FCC Class A IC Class class A VIDEO SUPPORT To UXGA 1600x1200 60Hz RGBHV RGB Composite s Video Component Video modes MAXIMUM RESOLUTION AND At 500 ft 152 m or less 1600 x 1200 at 70Hz REFRESH RATE REQUIRED SOURCE IMPEDANCE Video OUT 75 ohms Audio OUT if any 600 ohms maximum REQUIRED DESTINATION Video IN 75 ohms IMPEDANCE Audio IN if any 600 ohms minimum AUDIO CHARACTERISTICS Channels Right Left summed Line Level 600 Ohm Unbalanced SERIAL CHARACTERISTICS Protocol Asynchronous2. http www kramerelectronics com 3 The complete list of Kramer cables is on our Web site at http www kramerelectronics com 4 In addition you may also need 1 8 3 5mm audio cable with RCA jacks 1 8 3 5mm serial cable with DB9 connector and Video cable with HD15 connectors 1 Overview 3 Overview CAT 5 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 CAT 5 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 CAT 5 cables can damage this product 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 Our Kramer Cobra series products are compatible with CAT 5 5e 6 data cabling as well as skew free CAT 5 5e cabling manufactured for video applications Note that some skew free CAT 5 is specific to a particular vendor and is not compatible with our products Ensure any skew free CAT 5 cable is non proprietary prior to purchase installation CAT6 cable due to the manufacture method can exhibit much greater skew than standard CAT 5 3e and may require skew compensation beyond what the standard product offers Contact Kramer Electronics for assistance Achieving the b
3. Rules and Regulations Part 15 Radio frequency devices Subpart B Unintentional radiators CAUTION gt 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 gt Use the supplied DC power supply to feed power to the machine gt Please use recommended interconnection cables to connect the machine to other components 11 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 Discomnect the unit from the power supply before opening servicing Caution Kramer Electronics Ltd Web site www kramerelectronics com E mail info Okramerel com P N 2900 650005 REV 3
4. Turn SW1 off to disable termination Serial communication doesn t work correctly Cobra R500 2 only Solution Are the serial devices connected properly Are the serial parameters correct for source destination devices Are the serial cables terminated correctly If a null modem cable is used it must be placed at the receiver end When using RS 232 transmitters or receivers in daisy chains CAT 5 switches or CAT 5 distribution amps the serial signal is a unidirectionally broadcast mode only In this mode all other Cobra CATS Video System devices must be the simplex serial type Cobra R500 2 use 3 wire TX RX GND signals only via the 1 8 connector see Appendix A for pinout 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 O volts For five component RGB H amp V AC coupled video the Cobra transmitter has been designed with full DC restoration capability Refer to the transmitter user manual Solutions to Common Problems Appendix A Cabling Pinouts Table 3 HD15 Video Connector PINOUT Pin RGBHV RGBS RGsB Composite SVHS YUV VGA Y C 1 Red Red Red C V 2 Greent Green Green C Y Y 3 Blue Blue Blue U 4 I 5 Gnd Gnd Gnd 6 Red Red Red C V 7 Green Green Green C Y Y 8 Blue Blue Blue U 9
5. transparent to data format transparent to data rates up to 19 2 kbps duplex data rates to 115 kbps simplex 3 wire Tx Rx Gnd CONNECTORS 1 3 5 mm 1 RJ 45 1 HD15 F TEMPERATURE TOLERANCE Operating 32 to 104 F 0 to 40 C Storage 4 to 140 F 20 to 60 HUMIDITY TOLERANCE Up to 80 noncondensing ENCLOSURE Steel POWER 5 VDC 260 mA max Consumption 1 3 watts maximum SIZE 0 88 H x 3 12 W x 3 75 D 2 2 x 7 9 x 9 5 cm WEIGHT 0 56 bb 0 26 kg 1 Specifications are subject to change without notice 10 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 WHAT IS COVERED AND WHAT IS NOT COVERED 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 deface
6. Kramer Electronics Ltd USER MANUAL Models Cobra R500A Video Audio receiver Cobra R500 2 Video RS 232 receiver Contents Contents 1 Introduction 2 Getting Started 3 Overview 4 Setup and Installation 4 1 Making the Connections 4 2 Connections on the VGA Audio Transmitter 4 3 Connections on the Video Serial Transmitter 4 4 Configuration Settings 4 5 Video Adjustment 5 Solutions to Common Problems 6 Technical Specifications Figures Figure 1 Transmitter Connections Figure 2 Cobra R500A Video Audio receiver Connections Figure 3 Transmitter Connections Figure 4 Cobra R500 2 Video RS 232 receiver Connections Tables Table 1 Cobra R500A Cobra R500 2 Configuration Settings Table 2 Cable Length EQ Settings Table 3 HD15 Video Connector PINOUT Table 4 T568B CAT 5 PINOUT Table 5 1 8 3 5 mm Audio Serial Connection model dependent Table 6 Technical Specifications of the Cobra R500A Cobra R500 2 p SND WAN BW WN a ja nama RR O KO NO 00 GA DN pa 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 Congra
7. able for various video audio and serial modes Note that a compatible transmitter unit must be used at the source end Reference the appropriate transmitter user guide or call for technical assistance It is not possible to change an audio unit to a serial unit and vice versa A dipswitch on the receiver unit is used to set the video audio serial configuration mode Table 3 1 below shows the configuration settings ON down OFF up NOTE There are no user serviceable parts inside the Cobra R500A Cobra R500 2 All adjustments are performed externally Table 1 Cobra R500A Cobra R500 2 Configuration Settings SW Configuration Settings zi Configuration Sets O swposten 2 3 Sea ses L R Audio On 100 term ON ON R500A models On no term OFF ON Off OFF OFF Serial Duplex OFF OFF renames on r Video RGBHV ON All Models Composite OFF S Video NE Leone 4 5 Video Adjustment The only adjustments required on the Cobra R500A and Cobra R500 2 are the SW positions 4 and 5 which must be set to compensate for cable length Using the table below as a guide turn SW positions ON or OFF for best picture clarity ON down OFF up Table 2 Cable Length EO Settings Cable distance EQ settings Cable Length 4 5 0 125 Ft 125 250 Ft 250 375 Ft 375 500 Ft 6 KRAMER SIMPLE CREATIVE TECHNOLOGY Solutions to Common Problems 5 Solutions to Common Problems In most cases n
8. d modified or removed 3 Damage deterioration or malfunction resulting from 1 Accident misuse abuse neglect fire water lightning or other acts of nature ii Product modification or failure to follow instructions supplied with the product 111 Repair or attempted repair by anyone not authorized by Kramer iv Any shipment of the product claims must be presented to the carrier v Removal or installation of the 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 FOR AND WHAT WE WILL NOT PAY FOR We will pay labor and material expenses for covered items We will not pay for the following 1 Removal or installations charges 2 Costs of initial technical adjustments set up including adjustment of user controls or programming These costs are the responsibility of the Kramer dealer from whom the product was purchased 3 Shipping charges HOW YOU CAN GET WARRANTY SERVICE 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 For the name of the nearest Kramer author
9. e The audio signal 1s line level audio and powered speakers are required Figure 1 shows the Kramer Cobra transmitter with Audio Transmitter connections and Figure 2 shows the Kramer Cobra R500A Video Audio receiver CATS Options UTP 3 Audio o Power Video Out Videc In Figure 1 Transmitter Connections NI JNIT VIDEO OUT Cobra R500A Cc D 2 O D c 2 D 5 q O D ke gt AUDIO OUT Figure 2 Cobra RSOOA Video Audio receiver Connections 4 KRAMER SIMPLE CREATIVE TECHNOLOGY Setup and Installation 4 3 Connections on the Video Serial Transmitter The single port units with audio support video and serial signals over CAT 5 cable The serial signal is 3 wire TX RX GND serial Figure 3 shows the Kramer Cobra transmitter with serial Transmitter connections and Figure 4 shows the Cobra R500 2 Video RS 232 receiver See Appendix A for cable pinouts of the Cobra R500 2 CATS 3 Simplex UTP serial Out Power Video Out Duplex Video Serial In In Out Figure 3 Transmitter Connections Note Both serial connection types are shown but only one is used depending on the model and settings VIDEO OUT h O O In x 0 ke 0 O c D O D c cuU m cu U CF O D pS gt Figure 4 Cobra R500 2 Video RS 232 receiver Connections Setup and Installation 4 4 Configuration Settings The Cobra R500A and the Cobra R500 2 are configur
10. early every issue with the Cobra series can be resolved by checking the CAT 5 termination and making sure that it s pinned to the TIA EIJA 568B wiring specification However there may be other problems that cause the system to not perform as it is designed Below are solutions to the most common installation errors No video signal at the transmitter local port or at the receiver Solution Check that both units are powered Ensure EQ adjustment switches are set correctly Make sure the CAT 5 cable is terminated correctly per the TIA EIA 568B wiring specification Is the display device powered on and functioning Check to ensure display settings resolution refresh rate and so on are compatible with input signal Poor video quality Solution Have all receiver adjustments been finished Ensure EQ adjustment switches are set correctly Check all cable connections The video signal s refresh rate may be set too high Reset to a lower refresh rate in your monitor configuration menu Poor audio quality Cobra R500A only 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 Audio is summed left and right for A versions If using a single channel both audio inputs must be connected at the transmitter end for full audio gain Audio is line level Low Level Audio may require the 100 Q termination disabled
11. est 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 R500A R500 2 in a location free from moisture and away from excessive sunlight and dust OFT No operator serviceable parts inside unit Use only the Kramer Electronics input power wall adapter that is provided with this unit Meta 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 00025 1 2 KRAMER SIMPLE CREATIVE TECHNOLOGY Setup and Installation 4 Setup and Installation First ensure all units have been configured for correct operation and signal types See appropriate configuration sections of this manual and the respective transmitter manual 4 1 Making the Connections This section contains figures showing connections with the specific Cobra R500A R500 2 series models In general however the connection and setup procedure at both transmitter and
12. ized service center consult your authorized dealer LIMITATION OF IMPLIED 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 OF DAMAGES 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 of time commercial loss or 2 Any other 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 returned 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
13. receiver ends is as follows At the transmitter end refer to the transmitter user guide Connect the source video to the Cobra Series transmitter video input port which is an HD15 connector labeled SOURCE IN If desired attach a local monitor via the local monitor port to LOCAL OUT Make your audio serial connections via the 1 8 3 5mm audio connector or DB9 serial connector transmitter model dependent Connect the CAT 5 cable to the transmitter Apply power on the transmitter The LED should light and if there is a local monitor attached a video image should appear on the monitor s screen At the receiver end 1 Connect the VIDEO OUT HD15 connector to the display unit and attach any audio cabling Connect a 1 8 3 5mm audio or serial cable to the AUDIO or SERIAL OUT connection model dependent Connect the CAT 5 cable to the UTP INPUT connection Apply power The LED should light and video should appear on the display make sure display is powered ON Adjust video levels With regard to connecting the cables We recommend mounting and connecting all cabling to the Cobra R500A R500 2 components before applying power Be sure that the CAT 5 cable you intend to use has been tested to comply with the T568B wiring specification see Appendix A Setup and Installation 4 2 Connections on the VGA Audio Transmitter The single port units with audio support video and audio signals over CAT 5 cabl
14. tulations on purchasing your Kramer Cobra R500A Video Audio receiver and or Cobra R500 2 Video RS 232 receiver The Kramer Cobra Series System extends VGA and audio signals over ordinary Category 5 cable This manual covers the Cobra R500A Video Audio receiver with audio and the Cobra R500 2 Video RS 232 receiver with RS 232 serial support For information on the respective transmitter unit refer to the appropriate manual included with the transmitter The package includes the Cobra R500A Video Audio receiver or the Cobra R500 2 Video RS 232 receiver an external power supply 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 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 CAT 5 cable We recommend that you use our Kramer Pico Skew CAT 5e cable 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
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