Kramer 717 Manuale utente

KRAMER ELECTRONICS LTD.

USER MANUAL

MODELS:

717

Video-Audio Line Transmitter

718-05

Video-Audio Line Receiver

718-10

Video-Audio Line Receiver

718-15

Video-Audio

Line

Receiver

P/N: 2900-300165 Rev 1

717/718 – Contents i

Contents

1Introduction 1

2Getting Started 2

2.1 Achieving the Best Performance 2

3Overview 3

3.1 Shielded Twisted Pair/Unshielded Twisted Pair 3

4Defining the 717 and 718 4

4.1 Defining the 717 Video-Audio Line Transmitter 4

4.2 Defining the 718 Video-Audio Line Receiver 5

4.3 Wiring the TP LINE IN / LINE OUT RJ-45 Connectors 6

5Connecting the 717 and 718 7

6Technical Specifications 9

Figures

Figure 1: 717 Video-Audio Line Transmitter 4

Figure 2: 718 Front and Rear Panels 5

Figure 3: TP PINOUT 6

Figure 4: Connecting the Video-Audio Line Transmitter/Receiver System 8

717/718 - Introduction 1

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 now appear in 11 groups that are clearly defined

by function: GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Routers;

GROUP 3: Control Systems; GROUP 4: Format/Standards Converters; GROUP 5:

Range Extenders and Repeaters; GROUP 6: Specialty AV Products; GROUP 7:

Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9:

Room Connectivity; GROUP 10: Accessories and Rack Adapters and GROUP 11:

Sierra Products.

Congratulations on purchasing your Kramer 717 Video-Audio Line Transmitter and

718 Video-Audio Line Receiver, which are ideal for the following typical

applications:

•Remote monitoring for CCTV, medical and schools

•Existing facilities with TP cable already installed

•Teleconferencing in offices and hospitals using existing intercom or

telephone wiring

•Security systems

There are three models of the 718 available that support different ranges:

•718-05 up to 500m (1640ft)

•718-10 up to 1000m (3280ft)

•718-15 up to 1500m (4920ft)

All references to the 718 in this manual apply to all three models.

2 717/718 - 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

•Use Kramer high-performance, high-resolution cables

Go to http://www.kramerelectronics.com to check for up-to-date

user manuals, application programs, and to check if firmware

upgrades are available (where appropriate).

2.1 Achieving the Best Performance

To achieve the best performance:

•Use only good quality connection cables to avoid interference, deterioration

in signal quality due to poor matching, and elevated noise levels (often

associated with low quality cables)

•Do not secure the cables in tight bundles or roll the slack into tight coils

•Avoid interference from neighboring electrical appliances that may adversely

influence signal quality

•Position your Kramer products away from moisture, excessive sunlight and

dust

Caution: No operator serviceable parts inside the unit

Warning: Use only the Kramer Electronics input power wall

adapter that is provided with the unit

Warning: Disconnect the power and unplug the unit from the wall

before installing

717/718 - Overview 3

3 Overview

The 717 and 718 are a twisted pair (TP) transmitter and receiver for composite

video and unbalanced stereo audio signals. The 717 transmitter converts

composite video and stereo audio into a twisted pair signal and the 718 receiver

converts the twisted pair signal back to composite video and stereo audio.

The 717/718 feature:

•A system range of up to 500m (1640ft) for the 718-05, 1000m (3280ft) for

the 718-10 and 1500m (4920ft) for the 718-15

•Automatic audio and video equalization (EQ) control (718)

The 717 and 718 are part of the Kramer TOOLS™ family of compact high-quality

and cost effective solutions which are fed from an external 12V DC source, making

them suitable for field operation.

3.1 Shielded Twisted Pair/Unshielded Twisted Pair

We recommend that you use Shielded Twisted Pair (STP) cable, and stress that

the compliance to electromagnetic interference was tested using STP cable. There

are different levels of STP cable available, and we advise you to use the best

quality STP cable that you can afford. Our non-skew-free cable, Kramer BC-STP

is intended for analog signals where skewing is not an issue.

In cases where there is skewing, our Unshielded Twisted Pair (UTP) skew-free

cable, Kramer BC-XTP, may be advantageous, and UTP cable might also be

preferable for long range applications. In any event when using UTP cable, it is

advisable to ensure that the cable is installed far away from electric cables, motors

and so on, which are prone to create electrical interference.

Note: There is no requirement for and we do not recommend the use of skew-free

cable.

4 717/718 - Defining the 717 and 718

4 Defining the 717 and 718

This section defines the:

•717 Video-Audio Line Transmitter (see Section 4.1)

•718 Video-Audio Line Receiver (see Section 4.2)

4.1 Defining the 717 Video-Audio Line Transmitter

Figure 1defines the front and rear panels of the 717 Video-Audio Line Transmitter.

Figure 1: 717 Video-Audio Line Transmitter

# Feature Function

1 ON LED Lights green when the unit is powered on

2 VIDEO IN BNC Connector Connects to the composite video source

3 LINE OUT RJ-45 Connector Connects to the LINE IN RJ-45 connector on the

718 using CAT 5 cable (see Figure 4)

4 LEFT and RIGHT AUDIO IN RCA

Connectors Connect to the left and right channels of the

unbalanced stereo audio source

5 12V DC Connector Connects to the 12V DC power supply

717/718 - Defining the 717 and 718 5

4.2 Defining the 718 Video-Audio Line Receiver

Figure 2defines the front and rear panels of the 718 Video-Audio Line Receiver

for all models.

Figure 2: 718 Front and Rear Panels

# Feature Function

1 LINK LED Lights green when the connection is established

2 ON LED Lights green when the unit is powered on

3 VIDEO OUT BNC Connector Connects to the composite video acceptor

4 LINE IN RJ-45 Connector Connects to the LINE OUT RJ-45 connector on

the 717 using CAT 5 cable (see Figure 2)

5 LEFT and RIGHT AUDIO OUT

RCA Connectors Connect to the left and right channels of the

unbalanced stereo audio acceptor

6 12V DC Connector Connects to the 12V DC power supply

6 717/718 - Defining the 717 and 718

4.3 Wiring the TP LINE IN / LINE OUT RJ-45 Connectors

This section defines the TP pinout, using a straight pin-to-pin cable with RJ-45

connectors.

Note, that the cable Ground shielding must be connected / soldered to

the connector shield.

EIA /TIA 568B

Figure 3: TP PINOUT

Wire Color

1 Orange / White

2 Orange

3 Green / White

4 Blue

5 Blue / White

6 Green

7 Brown / White

8 Brown

717/718 - Connecting the 717 and 718 7

5 Connecting the 717 and 718

You can use the 717 and 718 to configure a long distance audio-video transmitter

and receiver system.

To connect the 717 and the 718 as illustrated in the example in Figure 4:

1. On the 717, connect a composite video source (for example, a composite

video player) to the VIDEO IN BNC connector, and connect the unbalanced

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

2. Using CAT 5 cabling, connect the LINE OUT RJ-45 connector on the 717 to

the RJ-45 LINE IN connector on the 718.

3. On the 718, connect the VIDEO OUT BNC connector to a composite video

acceptor (for example, a display), and connect the AUDIO OUT RIGHT and

LEFT RCA connectors to an unbalanced audio acceptor (for example, an

amplifier).

4. Important: You must connect a 12V DC power supply to each of the devices

in the following order:

First connect power to the 717

Then connect power to the 718.

The 717 must be powered on first.

Note: The video and audio signals stabilize in a few seconds. If the picture

contains artifacts or does not appear at all, reconnect either end of the twisted pair

cable.

Note: The 717 and 718 do not have the Power Connect™ feature.

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