Kramer 712N Bedienungsanleitung

Kramer Electronics, Ltd.

USER MANUAL

Models:

711N,

Video-Audio Line Transmitter

712N,

Video-Audio Line Receiver

Contents

Introduction 1

Getting Started 1

Overview 2

3.1

About the Power Connect Feature 2

3.2

Shielded Twisted Pair (STP) / Unshielded Twisted Pair (UTP) 3

Your Video-Audio Line Transmitter/Receiver 3

4.1

Your 711N Video-Audio Line Transmitter 3

4.2

Your 712N Video-Audio Line Receiver 4

Connecting the 711N and the 712N 6

5.1

Wiring the CAT 5 LINE IN / LINE OUT RJ-45 Connectors 8

Technical Specifications 9

Figures

Figure 1: 711N Video-Audio Line Transmitter 3

Figure 2: 711N Video-Audio Line Transmitter – Top and Lower Side Panels 4

Figure 3: 712N Video-Audio Line Receiver 5

Figure 4: 712N Video-Audio Line Receiver – Top and Lower Side Panels 5

Figure 5: Connecting the Video-Audio Line Transmitter / Receiver System 7

Figure 6: CAT 5 PINOUT 8

Tables

Table 1: 711N Video-Audio Line Transmitter Features 4

Table 2: 712N Video-Audio Line Receiver Features 6

Table 3: CAT 5 PINOUT 8

Table 4: Technical Specifications of the 711N and the 712N 9

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 711N, Video-Audio Line Transmitter

and/or 712N, Video-Audio Line Receiver, which are ideal for:

 Remote monitoring for CCTV, medical, school and broadcast applications

 Existing facilities with TP cable already installed

 Teleconferencing in offices and hospitals using existing intercom or

telephone wiring

The package includes:

 711N or 712N

 Power adapter (12V DC Input) and this user manual

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

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

3 Overview

The 711N and 712N are a twisted pair transmitter and receiver for composite

video and unbalanced stereo audio signals. The 711N transmitter converts

composite video and stereo audio to a twisted pair signal and the 712N

receiver converts the twisted pair signal back into composite video and stereo

audio signals.

The 711N/712N feature:

 A maximal bandwidth of 85MHz

 A LINE IN, LINE LOOP

and LINE OUT on RJ-45 connectors

 A system range of up to 400 meters (1200 feet)

 Level (GAIN) and equalization (EQ) controls (on the 712N)

The 711N/712N are part of the Kramer TOOLS™ family of compact high-

quality and cost effective solutions, and are fed from an external 12V DC

source, making them suitable for field operation.

To achieve the best performance:

 Connect 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)

 Avoid interference from neighboring electrical appliances and position

your Kramer TOOLS™ away from moisture, excessive sunlight and dust

3.1 About the Power Connect Feature

The Power Connect feature lets you power a transmitter / receiver system by

connecting just one power adapter to either the transmitter or the receiver. The

other unit is fed over the same cable. The Power Connect feature applies as

long as the cable is heavy gauge cable (that is, it can carry power). The distance

does not exceed 50 meters on standard CAT5 cable.

For a distance of 100 meters, separate power supplies must be connected to the

transmitter and to the receiver simultaneously, unless using heavy gauge cable.

1 The 712N LINE IN can be looped to add an additional output and includes a selectable input signal termination push button

Your Video-Audio Line Transmitter/Receiver

3.2 Shielded Twisted Pair (STP) / Unshielded Twisted Pair (UTP)

The decision whether to use shielded twisted pair (STP) cable or unshielded

twisted pair (UTP) cable depends on the nature of the application.

It is recommended that in applications with high interference, shielded twisted pair

(STP) cable is used. However, the shield itself does create a capacitance that

degrades the frequency response of the machines. For shorter distances, of 50m or

so, shielded twisted pair (STP) cable may be preferred because it provides better

protection from interference (degradation is non-apparent).

For a long-range application, unshielded twisted pair (UTP) cable is preferred.

However, the unshielded twisted pair (UTP) cable should be installed further

away from electric cables, motors etc., which are prone to create electrical

interference.

4 Your Video-Audio Line Transmitter/Receiver

This section defines the:

 711N Video-Audio Line Transmitter (see section 4.1)

 712N Video-Audio Line Receiver (see section 4.2)

4.1 Your 711N Video-Audio Line Transmitter

Figure 1, Figure 2 and Table 1 define the 711N Video-Audio Line Transmitter:

Top Side Panel

Lower Side Panel

Figure 1: 711N Video-Audio Line Transmitter

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Your Video-Audio Line Transmitter/Receiver

Lower Side Panel

Top Side Panel

Figure 2: 711N Video-Audio Line Transmitter – Top and Lower Side Panels

Table 1: 711N Video-Audio Line Transmitter Features

# Feature Function

1 VIDEO IN BNC Connector Connect to composite video source

2 LINE OUT CAT5 Connector Connect to the LINE IN RJ-45 connector on the 712N

3 LEFT RCA

Connector

Connect to the left unbalanced stereo audio source

AUDIO

IN RIGHT RCA

Connector

Connect to the right unbalanced stereo audio source

5 12V DC +12V DC connector for powering the unit

6 ON LED Lights when receiving power from the 712N, or

directly from the power adapter

4.2 Your 712N Video-Audio Line Receiver

Figure 3, Figure 4 and Table 2 define the 712N Video-Audio Line Receiver:

Your Video-Audio Line Transmitter/Receiver

Top Side Panel

Lower Side Panel

Figure 3: 712N Video-Audio Line Receiver

Lower Side Panel

Top Side Panel

Figure 4: 712N Video-Audio Line Receiver – Top and Lower Side Panels

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Connecting the 711N and the 712N

Table 2: 712N Video-Audio Line Receiver Features

# Feature Function

1 VIDEO OUT BNC Connector Connect to the composite video acceptor

2 LINE LOOP CAT5 Connector Connect to the LINE IN RJ-45 connector of an additional

receiver to increase the number of outputs

3 LINE IN CAT5 Connector Connect to the LINE OUT RJ-45 connector of the 711N

4 LEFT RCA

Connector

Connect to the left unbalanced stereo audio acceptor

AUDIO

OUT RIGHT RCA

Connector

Connect to the right unbalanced stereo audio acceptor

6 12V DC +12V DC connector for powering the unit

7 LEFT Trimmer Turn to adjust the left audio signal level

AUDIO

LEVEL

RIGHT Trimmer Turn to adjust the right audio signal level

9 LOOP TERM Push Button When pressed, terminates the unit (not looped)

10 GAIN Trimmer Turn to adjust the output video signal level

11 VIDEO

EQ. Trimmer Turn to adjust the output video signal equalization

12 ON LED Lights when receiving power

5 Connecting the 711N and the 712N

You can use the 711N and 712N to configure a Video-Audio Transmitter and

Receiver system.

To connect the 711N Video-Audio Line Transmitter with the 712N Video-

Audio Line Receiver, as illustrated in the example in Figure 5, do the

following:

1. Connect a composite video source (for example, a composite video player) to

the VIDEO IN BNC connector on the 711N, and connect an unbalanced

stereo source to the AUDIO IN RIGHT and LEFT RCA connectors.

2. On the 712N, connect the VIDEO OUT BNC connector to a composite video

acceptor (for example, a display).

3. Connect the LINE OUT connector of the 711N to the LINE IN connector of

the 712N, via UTP cabling.

4. If an additional output is required, connect the LINE LOOP connector on the

712N to the LINE IN connector of an additional 712N unit

, via UTP cabling.

5. On each 711N / 712N unit, connect a 12V DC power adapter

to the power

socket and connect the adapter to the mains electricity.

1 Insert a screwdriver into the hole and carefully rotate it, to trim the level

2 By connecting the LINE LOOP connector of the additional 712N to the LINE IN connector of a third 712N, you can further

increase the number of outputs

3 See section 3.1 for the power connect feature

Connecting the 711N and the 712N

6. If required, on the 712N, adjust the VIDEO GAIN and EQ. levels, by inserting

a screwdriver into each of the small holes and carefully rotating them.

711N

712N

Amplifier

Display

Composite

Video Player

Figure 5: Connecting the Video-Audio Line Transmitter / Receiver System

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Connecting the 711N and the 712N

5.1 Wiring the CAT 5 LINE IN / LINE OUT RJ-45 Connectors

Table 3 and Figure 6 define the CAT 5 PINOUT, using a straight pin-to-pin

cable with RJ-45 connectors:

Table 3: CAT 5 PINOUT

EIA /TIA 568A EIA /TIA 568B

PIN Wire Color PIN Wire Color

1 Green / White 1 Orange / White

2 Green 2 Orange

3 Orange / White 3 Green / White

4 Blue 4 Blue

5 Blue / White 5 Blue / White

6 Orange 6 Green

7 Brown / White 7 Brown / White

8 Brown 8 Brown

Pair 1 4 and 5 Pair 1 4 and 5

Pair 2 3 and 6 Pair 2 1 and 2

Pair 3 1 and 2 Pair 3 3 and 6

Pair 4 7 and 8

Figure 6: CAT 5 PINOUT

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