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Kramer Electronics, Ltd.
USER MANUAL
Models:
Cobra R1300A, Video / Audio Receiver
Cobra R1300S2, Universal Receiver
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Contents Contents 1 Introduction 1 2 Getting Started 2 3 Overview 2 4 Setup and Installation 4 4.1 Data Mode Configuration 4 4.2 Making the Connections 4 4.3 Connections on the Single-Port VGA/Audio 5 4.4 Connections on the single-port VGA S2 6 4.5 Video Adjustment 7 4.5.1 Cable Distance Compensation Settings 7 4.5.2 Skew Compensation Settings 7 5 Solutions to Common Problems 8 6 Technical Specifications 16 Figures Figure 1: Transmitter Connections 5 Figure 2: Cobra R1300A Video
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Introduction 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 the video, audio, presentation, and broadcasting professional on a daily basis. In recent years, we have redesigned and upgraded most of our line, making the best even better! Our 1,000-plus different models 1 now appear in 11 groups that are clearly defined by function. Congratulatio
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Getting Started 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 1 Use Kramer high performance high resolution cables . You may 2 also need CAT 5 cable 3 Overview 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 C
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Overview Caution – No operator-serviceable parts inside unit. Warning – Use only the Kramer Electronics input power 1 wall adapter that is provided with this unit . Warning – Disconnect power and unplug unit from wall before installing or removing device or servicing unit. Warning –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!
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Setup and Installation 4 Setup and Installation 4.1 Data Mode Configuration The serial signal is 3 wire TX, RX, GND and does not support full modem signals. Baud rates for the S2 series are fixed at 9600. Simplex modes are supported without jumper or other changes by simply using the TX signal only. S2 units require no configuration. 4.2 Making the Connections This section contains figures showing connections with the specific Cobra R1300A / R1300S2 series models. In general, however, t
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Setup and Installation With regard to connecting the cables: We recommend mounting and connecting all cabling to the Cobra R1300A / R1300S2 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). 4.3 Connections on the Single-Port VGA/Audio The single-port units with audio support video and audio signals over CAT 5 cable. The audio signal is line-level summed Right/Left audio, and
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Setup and Installation 4.4 Connections on the single-port VGA S2 The Single-Port Cobra CAT 5 Video System series supports RS-232, video and stereo audio signals over CAT 5 cable. Serial signals are 3 wire RS232 (Tx, Rx, ground) and fixed at 9600 baud. Full 9 pin modem signals are not supported. Note when using the Cobra 2/S2 series with a Cobra CAT 5 DA or CAT 5 matrix switch, the serial is transmit only. There are no configuration changes required to the units. The serial application in
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Setup and Installation 4.5 Video Adjustment 4.5.1 Cable Distance Compensation Settings To get the highest quality video signals from your Cobra CAT 5 Video System, follow the instructions and diagrams below: NOTE: TURN KNOB SLOWLY DURING ADJUSMENT PROCEDURE. Turning too fast may result in missing the proper EQ setting resulting in picture loss. To Reset EQ and Skew values to 0, remove power from R1300A / R1300S2, Push and hold EQ/Skew Knob in and re-apply power. 1. Display a test p
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Solutions to Common Problems 1. To adjust individual colors, press and hold briefly, and then release the EQ/Skew knob until the desired color LED is flashing for the R/G/B LED. The LED color corresponds to the color channel being adjusted. 2. Using the image utility, turn knob to add/subtract delay timing until a single vertically aligned line of red, green, blue is obtained. 3. When complete, press and hold briefly, and then release the EQ/Skew knob until the R/G/B LED is solid green.
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Solutions to Common Problems Serial communication doesn’t work correctly. Problem: 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 m
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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 Green+ 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 H Sync C Sync — 14 V Sync — — 15 Gnd Gnd — Table 2: Terminal Block Conne
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Solutions to Common Problems Appendix A Cabling Pinouts Table 3: DB9 Video Connector PINOUT Pin Full Duplex 3 wire (SA/SAP) Simplex 1 DCD 2 RX RX 3 TX TX TX 4 DTR 5 Ground Ground Ground 6 DSR 7 RTS 8 CTS 9 RI Table 4: T568B CAT 5 PINOUT 11
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Solutions to Common Problems Appendix B Configuration Settings Note: the Cobra R1300A Video and the Audio Receiver Cobra R1300S2 Universal Receiver are typically pre-configured at time of order and will have factory configuration indicated on the bottom of the unit. The factory configuration may be changed or checked by using the following jumper location diagram as well as Table 5 for jumper settings. KRAMER: SIMPLE CREATIVE TECHNOLOGY 12
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Solutions to Common Problems Table 5: Configuration Jumper Settings SW1 SW2 Configuration Option (all options JP1 JP2 JP3 JP4 utilize 4th pair): 1 2 3 4 5 1 2 RGBHV Computer Video (see note below on daisy chaining) With Left/Right Line Level Audio 1-2 1-2 1-2 1-2 OFF ON ON OFF OFF OFF OFF With SDPIF Digital Audio 1-2 1-2 1-2 1-2 OFF ON OFF OFF OFF OFF ON With Simplex Serial (receive only) 1-2 1-2 1-2 1-2 ON OFF OFF OFF OFF ON OFF With Composite Video 1-2 1-2 1-2 1-2 OFF ON OF
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Solutions to Common Problems Appendix D Setting Sync Mode The Cobra R1300A / R1300S2 has the capability for fixed and agile sync. The default sync mode setting is for agile sync which replicates the source sync polarity signals. However some displays require a fixed sync polarity that is not possible to change at the video source. The following details jumper settings to change the sync polarity of the horizontal and vertical sync signals (note that jumpers JP6 and JP7 have no affect in
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Solutions to Common Problems Appendix E Skew Module The Cobra R1300A / R1300S2 receivers have an optional skew compensation module that can be installed or removed. To install the skew compensation module: 1. Remove top cover. 2. Remove the 3 jumpers from J16 pins 1-2, 4-5, 7-8. 3. Insert the Skew assembly onto the PCB using 11 pin headers J16 and J17. 4. The correct orientation of the skew board is to place the side with the logo into header J17. 5. Reassemble unit. Removal is the op
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Technical Specifications 6 Technical Specifications 1 Table 6: Technical Specifications of the Cobra R1300A, Cobra R1300S2 CABLE REQUIRED: Category 5, 5e, 6 shielded or unshielded twisted pair COMPLIANCE: CE; FCC Class A, IC Class/class A VIDEO SUPPORT: all supported VESA modes to WUXGA (1920x1200), RGBHV, RGB, Composite (NTSC, PAL, SECAM), S-Video, Component Video, widescreen modes, HDTV modes including 1080p, 1080i, 720p RESOLUTION AND REFRESH At 1300 ft. or less: a maximum of 1920x1
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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.com P/N: 2900-650004 REV 4
