Kramer Electronics Cobra-T2
Contents
1. AC Coupling Options 10 KRAMER SIMPLE CREATIVE TECHNOLOGY Solutions to Common Problems Appendix D Cobra T2 Configuration Settings Note Cobra transmitters are typically pre configured at time of order and will have factory configuration indicated in the part number label on the underside 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 550050500509 Figure 4 Cobra T2 Jumper Locations and Settings 11 Solutions to Common Problems Table 5 Cobra T2 Configuration Jumper Settings Configuration Option all options utilize 4th pair except special configurations SII SWS SWG RGBHV Computer Video 10f 1 10ff 1ON 2 2ON 2Off 2 ON 3Off 3Off 3ON 3 ON 4Off 4Off 4ON 40 With Left Right Line Level Audio 10 10ff 10ff 1ON 20 20ff 2Off 2ON 3ON 3ON 40 4Off 4ON 40 With SDPIF Digital Audio 1ON 10ff 1Off 1ON 20f 20ff 208 2ON 3Off 3Off 3ON 3ON 4Off 4ON 4ON 40 With Simplex Serial receive only 10 10ff 1 Off 1ON 20 20ff 2O0ff 2ON SON 3ON 3ON 3ON 40 4Off 4ON 40 With Composite Video 1 Of 1 Off 1Off 1ON With RS232 serial or S2 series requires separate 2Off 2Off 2Off 2ON daughterboard installed 3 Off 4 3 Off 3 Off 3 ON Off 4Off 4 O2. OUT 7 8 IN 7 8 IN 9 10 OUT 9 10 OUT 5 Full Duplex 19 2k 1 2 OUT 1 2 OUT Default 2 way Long 3 4 OUT 3 4 IN to 1500 ft 5 6 OUT 5 6 IN 7 8 IN 7 8 OUT 9 10 OUT 9 10 IN JP3 and JP4 are OUT for all modes except MODE 5 In Mode 5 JP3 and JP4 should be jumpered across pins 2 3 14 KRAMER SIMPLE CREATIVE TECHNOLOGY Solutions to Common Problems Appendix F Rackmounting Units The Rackmount Kits include brackets for mounting a single transmitter single receiver or a single dual daisychainable receiver Figure 5 shows the 1 Unit Rackmount Bracket which can be used to mount a single unit on a wall Figure 6 shows the 4 Unit Rackmount Bracket which holds four units in a 19 x 1U rack Not shown are brackets for 8 units and brackets for series receivers and transmitters The 8 Unit Rackmount Bracket holds the mounted units like the 4 Unit Rackmount Bracket but is 2U high instead of 1U high stacking 4 slots directly above 4 slots The 3 Unit receiver and T4 Transmitter Bracket holds 3 units in a 19 wide x 1U high panel The 6 Unit receiver and Transmitter Bracket occupies 2U high rack space stacking 3 units atop 3 units Figure 5 Receiver Mounting Bracket Support brace mounts between rail and rack z brace mounts between rail and rack 10 32 x panhead screws 10 32 x panhead screws only one shown Figure 6 Mounting Bracket 15 Solutions to Common Pro
3. 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 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 6 cable due to the manufacture method can exhibit much greater skew than standard CAT 5 5e and may require skew compensation beyond what the standard product offers Contact Kramer Electronics for assistance 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 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 T2 ina location free from moisture and aw
4. position terminal block 1 DB9 M 1 RJ 45 2 HD15 TEMPERATURE Operating 32 to 104 F 0 to 40 TOLERANCE Storage 4 to 140 F 20 to 60 C HUMIDITY Up to 80 noncondensing TOLERANCE ENCLOSURE Steel POWER 5 Consumption 5 watts maximum SIZE 1 2 H x 4 2 W x 4 3 D 3 1 x 10 4 x 10 9 cm WEIGHT 1 0 Ib 0 45 kg 1 Specifications are subject to change without notice 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 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 or removed 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 t
5. Kramer Electronics Ltd USER MANUAL Model Cobra T2 Video RS 232 Transmitter Contents Contents 1 Introduction 2 Getting Started 3 Overview 4 Setup and Installation 4 1 Making the Connections 4 2 Connections on the Single Port VGA RS 232 5 Solutions to Common Problems 6 Technical Specifications Figures Figure 1 Connecting the Cobra T2 Figure 2 Setting Sync Signal Output Termination Figure 3 DC Restore AC Coupling Options Figure 4 Cobra T2 Jumper Locations and Settings Figure 5 Receiver Mounting Bracket Figure 6 Mounting Bracket Tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 HD15 Video Connector PINOUT Terminal Block PINOUT DB9 Female Serial connector T568B CAT 5 PINOUT Cobra T2 Configuration Jumper Settings Receiver SDB Jumper Settings Technical Specifications of the Cobra T2 Nee 17 10 11 15 15 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 TOOLS Cobra T2 Video RS 232 Transmitter which extends VGA and seri
6. al signals over ordinary Category 5 cable This unit is field configurable for various video and serial options see Appendix D for configuration settings The T2 series feature video and RS 232 signals on a single CAT 5 cable The package includes the Cobra T2 Video RS 232 Transmitter 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 1 8 3 5mm audio cable video cable with HD15 connectors serial cable with DB9 connectors and CAT 5 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 http www kramerelectronics com 3 The complete list of Kramer cables is on our Web site at http www kramerelectronics com 1 Overview 3 Overview Our Kramer Cobra series products are compatible with CAT 5 5e 6 data cabling
7. and receivers Make sure the unit is powered OFF If necessary unplug all cables to the unit 3 Unscrew the top screw as well as the two set screws in the DB9 connector Lift the cover off Type Baud JP1 JP1 LLL Max 1 2 3 4 SEXXXXXXXXA 1 Simplex 115k OUT IN one way to 1500 ft 2 Full Duplex 19 2K OUT OUT ee 2 way 334 Short 500 ft aci oa JP1 3 5 Full Duplex 19 2k OUT Default 2 way Long to Setting 1500 ft f 4 Half Duplex 115k IN IN 2 way Long to 1500 ft Ve Solutions to Common Problems Appendix E Serial Daughterboard SDB Settings cont The single port serial transmitters and single port and dual daisy chainable serial receivers contain an internal serial daughterboard SDB that can be configured for various serial modes Table 6 Receiver SDB Jumper Settings Mode Type Baud JP1 JP2 Max 1 Simplex 115k 1 2 See Notes 1 2 IN one way 3 4 See Notes 3 4 OUT to 1500 ft 5 6 IN 5 6 OUT 7 8 OUT 7 8 OUT 9 10 OUT 9 10 IN 2 Full Duplex 19 2K 1 2 See Notes 1 2 IN 2 3 4 Notes 3 4 OUT Short lt 500 5 6 OUT 5 6 OUT ft 7 8 OUT 7 8 IN 9 10 OUT 9 10 OUT 3 Full Duplex 19 2k 1 2 See Notes 1 2 IN 2 way Long 3 4 See Notes 3 4 OUT to 1000 ft 5 6 OUT 5 6 OUT 7 8 IN 7 8 IN 9 10 OUT 9 10 OUT 99555 4 Half Duplex 115 1 2 See Notes 1 2 IN 2 way Long 3 4 See Notes 3 4 OUT to 1500 ft 5 6 IN 5 6
8. ay 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 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 TECHNOLOGY Setup and Installation Setup and Installation Data Mode Configuration The Kramer Cobra T2 Video RS 232 Transmitters are configured in full modem bidirectional serial modes If you are using the daisy chain receivers or a CAT 5 matrix switch or CAT 5 distribution amp this mode must be changed to uni directional broadcast To do this configure the internal Serial Daughterboard SDB to change the transmitters and receivers serial mode operation see Appendix E This configuration should be done before making any cable connections and applying power Alternatively remove the internal daughterboard and use the transmitters built in simplex serial option with the appropriate jumper changes With regard to connecting the cables e Werecommend mounting and connecting all cabling to the Cobra T2 Video RS 232 Transmitter components befor
9. blems Appendix G Setting Sync Mode The Cobra T2 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 NOTE Both transmitter and receiver must have the same settings Not all Kramer Cobra T2 transmitter receivers support this function In this case Agile Sync Mode must be used Contact technical support for help Jumper Setting Fixed Sync Agile Sync default 16 KRAMER SIMPLE CREATIVE TECHNOLOGY Technical Specifications 6 Technical Specifications Table 7 Technical Specifications of the Cobra T2 CABLE REQUIRED Category 5 5e 6 shielded or unshielded twisted pair COMPLIANCE CE FCC Class A IC Class class A VIDEO SUPPORT VGA SVGA XGA XGA 2 RGBHV RGB Composite S Video Component Video modes RESOLUTION AND REFRESH Up to 1920 x 1200 at up to 60 Hz receiver dependent REQUIRED SOURCE IMPEDANCE Video OUT 75 ohms REQUIRED DESTINATION Video IN 75 ohms IMPEDANCE SERIAL Protocol Asynchronous transparent to data format CHARACTERISTICS transparent to data rates up to 19 2 kbps full duplex data rates to 115 kbps simplex half duplex modes CONNECTORS 1 4 position phoenix 1 RJ 45 2 HD15 F 232 1 DB9 M 1 RJ 45 2 HD15 F S2 1 4
10. 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 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 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 make
11. e applying power e 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 1 Making the Connections This section contains figures showing connections with the specific Cobra Series models In general however the connection and setup procedure at both transmitter and receiver ends is as follows NOTE all units must be the same type for all supported features to function correctly For example a Cobra T2 must be connected to a Cobra R500 2 for the serial signals to function You cannot use the serial option with a Cobra 2 and a Cobra R500 2 that is configured for simplex serial Similarly a Cobra T2 cannot be used with a Cobra R500A Video modes may function normally but 4th pair options will not At the transmitter end Connect the source video to the Cobra T2 Series transmitter video input port which is an HD15 connector labeled VIDEO IN If desired attach a local monitor via the local monitor port to LOOP OUT Make your audio or serial connections via the AUDIO AUX I O connector or DB9 connector as appropriate 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 Setup and Installation At the receiver end refer to the receiver user manual 1 Connect the VIDEO OUTPUT HD15 connector to the display uni
12. echnical Support See Appendix E for Serial board settings External switch for last unit in daisy chain Problem Green shift or green washout on multimedia signals Solution The standard video serial 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 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 video serial model For five component RGB H amp V AC coupled video the Cobra CAT 5 Video System T2 Universal transmitter has been designed with full DC restoration capability KRAMER SIMPLE CREATIVE TECHNOLOGY Solutions to Common Problems Appendix A Cabling Pinouts Table 1 15 Video Connector PINOUT Pin RGBHV RGBS RGsB Composite SVHS YUV VGA Y C 1 Red Red Red 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 ax 11 Gnd Gnd 12 13 HSync C Sync 14 VSync 15 Gnd Gnd Table 2 Terminal Block PINOUT PIN Audio S2 Audio Simplex S PDIF Composite Serial Audio Video Pin 1 Left Channel Left Chan
13. er locations for the Cobra T2 unit 75 ohm sync termination To enable Both jumpers OUT Default To disable Both jumpers IN 6555555550 joe A Figure 2 Setting Sync Signal Output Termination Solutions to Common Problems Appendix C DC Restore to fix Green Shift of AC Coupled Signals The standard Cobra product is designed to function with DC coupled signals with the black level referenced to 0 volts Nearly all cards function this way However some media servers or digital camera devices 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 in the Cobra The CobraT2 transmitter has been designed with full DC restore capability A simple switch setting is all that is required The following diagrams show the switch location and settings for the Cobra Universal Transmitter assembly Note Switch settings other than shown below may result in unpredictable performance and are not supported by Kramer DC restore AC coupling options Disable Coupling to A Default DC Restore to A Internal SW5 position 1 OFF default Mode1 AC Coupling to B Enable DC Restore to B Internal SW5 position 1 OFF default Mode2 AC Coupling to B Enable DC Restore to A Internal SW5 position 1 ON 7 Figure 3 DC Restore
14. ff 4 Off Composite S Video Component Video 1 Off 1ON 1Off 1ON 2 2ON 2Off 2ON 3Off 3Off 3ON 3ON 4Off 4Off 4ON 40 With Left Right Line Level Audio 10 10ff 10ff 1ON 20 20ff 2O0ff 2ON 3ON 3ON 40 4Off 4ON 40 With SDPIF Digital Audio 1ON 1Off 1Off 1ON 20f 20ff 208 2 30 3Off 3 ON 4Off 4ON 4ON 40 With Simplex Serial receive only 10 10ff 10ff 1ON 20 20ff 2O0ff 2ON SON 3ON 3ON 40 4Off 4ON 40 With Composite Video 1 Of 1 Off 1Off 1ON With RS232 serial or S2 series requires separate 2 O 20ff 20ff 2ON daughterboard installed 30 3 Off 3Off 3 ON 4Off 4Off 40 Special configurations 10 10ff 10ff 10 Composite Video and Stereo Audio 20 2Off 20ff 2ON All signals input via HD15 connector AV mode 3Off 3Off 3Off 3Off 4Off 4Off 4 Off KRAMER SIMPLE CREATIVE TECHNOLOGY Solutions to Common Problems Appendix E Serial Daughterboard SDB Settings The single port serial transmitters and single port and dual daisy chainable serial receivers contain an internal serial daughterboard SDB that can be configured for various serial modes The SDB hardware configuration is done via jumper settings These jumpers are used to set the various modes of operation As shown below Both ends must be set the same To access the SDB on transmitters
15. nel Tx Signal Signal Pin2 Ground Ground ground Signal Signal Pin3 Right Channel Right Channel 3 Pin4 Shell S2 audio channels are reversed at the receiver end Left audio is on pin 3 and right audio is on pin 1 7 Solutions to Common Problems Appendix A Cabling Pinouts Table 3 DB9 Female Serial connector Pin Full Duplex wire S2 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 T568B 5 Specification Color Orange White Orange Green White Blue Blue White Green Brown White Brown Cabling must be the same on both ends Use for Cat5 5e 6 87654321 8 KRAMER SIMPLE CREATIVE TECHNOLOGY Solutions to Common Problems Appendix B Setting Sync Signal Output Termination In some cases it may be necessary to disable the 75 ohm termination of the video outputs on the Cobra CAT 5 Video System units This can be done by opening the case of each unit and installing jumpers on the circuit board The settings disable enable the 75 ohm termination on individual units For instance changing a transmitter termination affects the local monitor port only it doesn t affect the receivers Conversely changing a receiver affects the output port of the receiver not the transmitter The following illustrations show the jump
16. o 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 Removalor 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 FORAND WHAT WE WILLNOT 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 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 implied warranties including warranties of merchantability and fitness for a particular purpose are limited in
17. r devices must be of the simplex serial type For more information contact Technical Support 4 KRAMER SIMPLE CREATIVE TECHNOLOGY Solutions to Common Problems 5 Solutions to Common Problems In most cases nearly every issue with the Cobra T2 CAT 5 Video System can be resolved by checking the CAT 5 termination and making sure that it s pinned to the TIA EIA 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 Problem No video signal at the transmitter local port or at the receiver Solution Check that both units are powered Ensure receiver EQ adjustment is set correctly turn knob slowly 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 In some cases the video termination may be mismatched The transmitters and receivers ship with 75 ohm termination as the default To disable termination see Appendix B Problem Poor video quality Solution Have all receiver adjustments been finished Ensure EQ adjustment is set correctly turn knob slowly Check all cable connections The video signal s refresh rate may be set too high Reset to a lower refre
18. s changes or modifications to the unit without the expressed approval of the manufacturer will void user authority to operate the equipment BO 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 18 KRAMER SIMPLE CREATIVE TECHNOLOGY 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 al Institute of Quality amp Control Kramer Electronics Ltd Web site www kramerelectronics com E mail infoG kramerel com P N 2900 650006 REV 3
19. sh rate in your monitor configuration menu There may be a delay skew issue See the section on Skew in the receiver manual There may be a DDC compatibility problem See Appendix G 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 Audio is summed left and right for versions If using a single channel both audio inputs must be connected at the transmitter end for full audio gain Audio is line level S2 serial audio units support full stereo line level A high frequency noise may be heard if the CAT 5 cable from the transmitter is disconnected or the transmitter is not powered up This is normal and will disappear once a complete link connection is made Solutions to Common Problems Problem Serial communication doesn t work correctly 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 CAT 5 Video System devices must be the simplex serial type For assistance contact T
20. t and attach any audio AUX I O and or serial connections RS 232 depending on the model of the Cobra CAT 5 Video System 2 Connect the CAT 5 cable to the LINK INPUT connection If daisy chaining units connect the output CAT 5 cable to the LINK OUTPUT connection 3 Apply power The LED should light and video should appear on the display make sure display is powered ON 4 Adjust video levels and skew compensation per appropriate receiver manual 4 2 Connections on the Single Port VGA RS 232 The Single Port Cobra T2 CAT 5 Video System with RS 232 supports video and full modem serial RS 232 signals over CAT 5 cable You can also use the transmitters and receivers to make video only connections without serial communications Figure 1 shows the Single Port Cobra T2 CAT 5 Video System with RS 232 Transmitter connections NOTE Even though both transmitter and receiver units contain audio jacks audio is not supported on the RS 232 version Plugging in audio cables may interfere with the RS 232 serial communications E u Power 1no xNn UTP Video 8 Out 8 a Video In 1001 H3WVUM JjenusueJ ZEZ SH Serial In Out AUX lO RS 232 34 Figure 1 Connecting the Cobra T2 NOTE Serial communication mode is unidirectionally broadcast when using transmitters and daisy chained receivers In this mode all othe
Download Pdf Manuals
Related Search