Kramer TWA, Cobra TWA User Manual

Kramer Electronics, Ltd.

USER MANUAL



Model:

Cobra TWA

Contents

i

Contents

1

Introduction 1

2

Getting Started 1

3

Overview 1

4

Setup and Installation 3

4.1

Connections on the 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

Table 1: HD15 Video Connector PINOUT 6
Table 2: T568B CAT5 PINOUT 7
Table 3: Technical Specifications of the Cobra TWA 8

Introduction

1

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 Groups1, 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 manual2.

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

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Overview

2

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).

CAT6 cable, due to the manufacture method, can exhibit much greater skew
than standard CAT5/5e and may require skew compensation beyond what the
standard product 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
CAT5 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 CAT5 cables
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
elevated noise levels (often associated with low quality cables)

 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

Caution – No operator-serviceable parts inside unit.

Warning – Use only the Kramer Electronics input power

wall adapter that is provided with this unit1.

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!

1 For example: model number AD2512C, part number 2535-000251