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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

1

, 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

2

The Kramer 

Cobra

 series products are not compatible with Kramer non-

Cobra

 

series products. 

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 

 

Use Kramer high performance high resolution cables

3

. You may 

also need CAT5 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 CAT5 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 

Summary of Contents for Cobra TWA

Page 1: ...Kramer Electronics Ltd USER MANUAL Model Cobra TWA...

Page 2: ...he Cobra TWA 4 4 2 Installing the Cobra TWA 4 4 3 Powering the Cobra TWA 4 5 Solutions to Common Problems 5 6 Technical Specifications 8 Figures Figure 1 Connecting the Cobra TWA Transmitter 4 Tables...

Page 3: ...ment carefully and save the original box and packaging materials for possible future shipment Review the contents of this user manual Use Kramer high performance high resolution cables3 You may also n...

Page 4: ...es can damage this product Achieving the best performance means Connecting only good quality connection cables thus avoiding interference deterioration in signal quality due to poor matching and eleva...

Page 5: ...5 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 1 Connect th...

Page 6: ...ransmitter 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 nation...

Page 7: ...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...

Page 8: ...Table 1 HD15 Video Connector PINOUT Pin RGBHV VGA RGBS RGsB Composite SVHS Y C YUV 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...

Page 9: ...Solutions to Common Problems 7 Table 2 T568B CAT5 PINOUT...

Page 10: ...o 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 terminal block power input TEMP...

Page 11: ...9...

Page 12: ...or 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 commen...

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