Kramer VS-120 Manuel utilisateur

Kramer Electronics, Ltd.

USER MANUAL

Model:

VS-120

20 x 1 Sequential Video Audio Switcher

Contents

Introduction 1

Getting Started 1

2.1

Quick Start 2

Overview 3

Installing the VS-120 in a Rack 6

Connecting the VS-120 7

Controlling the VS-120 8

6.1

Controlling via the RS-232 Port 8

6.1.1

Connecting the RS-232 Port 8

6.1.2

Setting the Self Address 9

6.2

Controlling via the RS-485 Port 9

Operating the VS-120 10

7.1

Operating the VS-120 as a Switcher 10

7.1.1

Choosing Manual Mode 10

7.1.2

Routing an Input 10

7.1.3

Enabling and Disabling Inputs 11

7.2

Operating the VS-120 as a Scanner 12

7.2.1

Choosing Auto Mode 12

7.2.2

Scanning the Inputs 12

7.2.3

Detecting Errors 13

7.3

Operating Multiple VS-120 Units 13

7.3.1

Viewing the Configuration of Another Machine 14

7.3.2

Routing an Input from Another Machine 14

7.4

Operating Using Serial Commands 15

Technical Specifications 15

Hex Table 16

RS-232 Communication Protocol for the VS-120 16

Figures

Figure 1: VS-120 20 x 1 Sequential Video Audio Switcher 4

Figure 2: Connecting the VS-120 7

Figure 3: Connecting a PC without using a Null-modem Adapter 8

Figure 4: PC Controlling Multiple VS-120 Units 10

Figure 5: Multiple Unit Configuration 14

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Contents

Tables

Table 1: Front Panel Features and Functions of the VS-120 5

Table 2: Rear Panel Features and Functions of the VS-120 5

Table 3: VS-120 Technical Specifications 15

Table 4: VS-120 Hex Table 16

Table 5: Instruction Codes for VS-120 Protocol 17

Introduction

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.

Thank you for purchasing the Kramer TOOLS VS-120 20 x 1 Sequential

Video Audio Switcher, which is ideal:

As a sophisticated alarm camera scanner

For monitoring large duplication systems

For automatic error detection in security systems

Each package includes the following items:

The VS-120 20 x 1 Sequential Video Audio Switcher

Power cord

Windows

-based Kramer control software

Null-modem adapter

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: Switchers and Matrix Switchers; GROUP 3: Control Systems; GROUP 4:

Format/Standards Converters; GROUP 5: Twisted-Pair Solutions; 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; GROUP 11: Sierra Products

2 We recommend that you use only the power cord supplied with this device

3 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com

4 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Getting Started

2.1 Quick Start

This quick start chart summarizes the basic setup and operation steps.

Overview

3 Overview

The VS-120 20 x 1 Sequential Video Audio Switcher is a programmable

scanning video switcher that accepts up to 20 inputs when operating as a

standalone unit, sequentially cycling the 20 video and audio stereo sources.

In manual mode it operates as a switcher and in automatic mode it operates

as a scanner. The fully programmable EEPROM/NOVRAM memory saves

and recalls all user-defined setups. Specifically, the VS-120 20 x 1

Sequential Video Audio Switcher features:

Support for connecting up to 99 VS-120 units to form a

switcher/scanner with up to 1980 inputs

Control via the front panel buttons or by RS-232 or RS-485

commands transmitted by a PC, touch screen system, or other

serial controller

Switching during the vertical interval, to ensure glitch-free

transitions between genlocked sources

Fully microprocessor controlled operation

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).

Avoid interference from neighboring electrical appliances that

may adversely influence signal quality and position your Kramer

VS-120 away from moisture, excessive sunlight and dust

1 Available from Kramer Electronics on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Overview

Figure 1: VS-120 20 x 1 Sequential Video Audio Switcher

Overview

Table 1: Front Panel Features and Functions of the VS-120

# Feature Function

1 POWER Switch Illuminated switch for turning the unit ON or OFF

2 PROGRAM KEYS Buttons Use to set the values for the Machine Number,Input Number or

Dwell Time

3 ENABLED INPUTS LEDs Indicate whether an input is enabled (on) or disabled (off)

4 MACHINE 7-segment Display Displays the Machine Number

5 INPUT 7-segment Display Displays the Input Number

6 DOWN Button Press to decrease a number by one

7 UP Button Press to increase a number by one

8 SELF ADDRESS Button Sets the Machine # (between 1 and 99). Set a standalone machine

address to 01

9 AUTO Button Press to activate the scanner mode. Prevents using the unit as a

switcher and lights the Auto LED

Setup

MANUAL Button Press to activate the (default) switcher mode. Prevents using the

unit as a scanner and lights the Manual LED

DWELL TIME Button Sets the scan display time (range is between 2 and 99 seconds) and

flashes the current setting in the MACHINE Display

START Button Starts scanning (only if the AUTO LED lights) from the first input of the

first machine that is in the Enable state. Dwell Time determines the

scanning time

STOP Button Stops the scanning

Auto Mode

CONTINUE Button Starts scanning from the present connected input to the output

(functions only when the AUTO LED lights)

MACHINE NUMBER

Button

Use to display another machine in a multiple unit configuration

INPUT NUMBER Button Press to alter the Enable/Disable status of an input. The current

Input Number flashes in the INPUT Display

ENABLE Button Press to light the selected Enabled Inputs LED

Program

DISABLE Button Press to turn off the selected Enabled Inputs LED

SKIP Button Skips an input after detecting a video input error during scanning

(lights the Skip LED) and continues scanning the next input

STOP Button Stops scanning after detecting a video input error (lights the Stop

LED)

IGNORE Button Scans independently of the video input signal’s characteristics (lights

the Ignore LED)

Error

LIST Button Press to produce a list (during the first scanning cycle) of the video

inputs at which a video signal is absent

Table 2: Rear Panel Features and Functions of the VS-120

# Feature Function

AUDIO INPUTS RCA Connectors Connects to the left and right audio sources (from 1 to 20)

Video Inputs BNC Connectors Connects to the video sources (from 1 to 20)

Video Outputs/Loop BNC Connectors Connects to the video acceptor(s) (from 1 to 2)

RS-485 Terminal Block Port Detachable terminal block port. PINOUT from left: + - G

Audio Outputs/Loop RCA Connectors Connects to the left and right audio connectors on the

acceptor(s) / next unit (from 1 to 2)

Power Connector with Fuse AC connector enabling power supply to the unit

RS-232 DB 9F Port Connect to the PC or the Remote Controller via a null-

modem connection

KRAMER: SIMPLE CREATIVE TECHNOLOGY

Installing the VS-120 in a Rack

4 Installing the VS-120 in a Rack

This section describes how to install the VS-120 in a rack.

Before Installing in a rack How to Rack Mount

Before installing in a rack, be sure that the environment is

within the recommended range:

Operating temperature range 5º to 45º C (41º to 113º F)

Operating humidity range 10 to 90% RHL, non-condensing

Storage temperature range -20º to +70º C (-4º to +158º F)

Storage humidity range 5 to 95% RHL, non-condensing



CAUTION!!

When installing on a 19" rack, avoid hazards by taking

care that:

1. It is located within the recommended environmental

conditions, as the operating ambient temperature of a

closed or multi unit rack assembly may exceed the

room ambient temperature.

2. Once rack mounted, enough air will still flow around

the machine.

3. The machine is placed straight in the correct

horizontal position.

4. You do not overload the circuit(s). When connecting

the machine to the supply circuit, overloading the

circuits might have a detrimental effect on overcurrent

protection and supply wiring. Refer to the appropriate

nameplate ratings for information. For example, for

fuse replacement, see the value printed on the

product label.

5. The machine is earthed (grounded) in a reliable way

and is connected only to an electricity socket with

grounding. Pay particular attention to situations where

electricity is supplied indirectly (when the power cord

is not plugged directly into the socket in the wall), for

example, when using an extension cable or a power

strip, and that you use only the power cord that is

supplied with the machine.

To rack-mount a machine:

1. Attach both ear brackets to the

machine. To do so, remove the

screws from each side of the

machine (3 on each side), and

replace those screws through the

ear brackets.

2. Place the ears of the machine

against the rack rails, and insert the

proper screws (not provided)

through each of the four holes in the

rack ears.

Note that:

In some models, the front panel

may feature built-in rack ears

Detachable rack ears can be

removed for desktop use

Always mount the machine in the

rack before you attach any cables

or connect the machine to the

power

If you are using a Kramer rack

adapter kit (for a machine that is not

19"), see the Rack Adapters user

manual for installation instructions

(you can download it at:

http://www.kramerelectronics.com)

Connecting the VS-120

5 Connecting the VS-120

To connect the VS-120, as shown in Figure 2, do the following

1. Connect up to 20 video-audio stereo sources to the appropriate input video

BNC connectors and input AUDIO L and AUDIO R RCA connectors (for

example, video players 1 to 20).

2. Connect the output video BNC connectors (for example, to one or two

displays) and output AUDIO L and AUDIO R RCA connectors to up to

two audio stereo acceptors (for example, the amplifier).

3. If required, you can connect a PC and/or controller to the RS-232 or RS-485

ports (as shown below). To combine multiple units, connect them using the

RS-485 ports.

4. Connect the power cord to the mains electricity (not shown in

Figure 2).

Figure 2: Connecting the VS-120

1 Switch OFF the power on each device before connecting it to your VS-120. After connecting your VS-120, switch on its

power and then switch on the power on each device

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