Kramer VS-4216 Manuel utilisateur

Kramer Electronics, Ltd.

USER MANUAL

Model:

VS-4216

16 Port RS-422 Matrix Switcher

Contents

Introduction 1

Getting Started 1

Overview 1

3.1

About RS-422 2

3.1.1

Signal Terminology 2

3.1.2

Standards 2

3.1.3

Bi-directional Signals 2

3.1.4

Communication Method via a DB9 Connector 3

3.1.5

Device Definition 3

3.1.6

Automatic Configuration 3

3.1.7

Port Definitions 4

3.1.8

More Than One Slave 4

Your Matrix Switcher 4

4.1

Connecting the VS-4216 Matrix Switcher 6

4.1.1

Connecting a PC 6

Operating Your Matrix Switcher 7

5.1

Startup Status Display 7

5.2

Bi-directional Connections 7

5.3

MENU Commands Sequence 8

5.3.1

Clearing a Single Slave 8

5.3.2

Clearing a Single Master 9

5.3.3

Clearing All Connections 9

5.3.4

Assigning All to Master 9

5.3.5

Storing and Recalling Setup 9

5.3.6

System Setup Categories 10

Technical Specifications 11

Communication Protocol 11

Figures

Figure 1: Bi-directional Signals I 3

Figure 2: Bi-directional Signals II 3

Figure 3: VS-4216 Matrix Switcher 5

Figure 4: Connecting a PC without using a Null-modem Adapter 7

Figure 5: Startup Status Display 7

Figure 6: Sequence of MENU Commands 8

Tables

Table 1: Front Panel VS-4216 Matrix Switcher Features 6

Table 2: Rear Panel VS-4216 Matrix Switcher Features 6

Table 3: Storing and Recalling Setups 10

Table 4: System Setup Screen Categories Sequence 11

Table 5: Technical Specifications of the VS-4216 Matrix Switcher 11

Table 6: VS-4216 Matrix Switcher Hex Table 12

Introduction

1 Introduction

Dedication by Kramer Electronics since 1981, to the development and

manufacture of high quality video/audio equipment, makes the Kramer line

an integral part of the finest production and presentation facilities in the

world. In recent years, Kramer has redesigned and upgraded most of the line,

making the best even better!

The Kramer line of professional video/audio electronics is one of the most

versatile and complete available, and is a true leader in terms of quality,

workmanship, price/performance ratio and innovation. In addition to our high

quality industrial and broadcast switchers and matrix switchers, we also offer

excellent amplifiers, remote controllers, processors, interfaces and computer-

related products.

Congratulations on purchasing your Kramer VS-4216 RS-422 Matrix

Switcher.This product is ideal for the following typical applications:

 Remote control of video and audio production studios

 Live broadcast remote control

 CCTV and other remote control applications

The package includes the following items:

 VS-4216 RS-422 Matrix Switcher

 Power cord

 Windows 95/98/NT

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

3 Overview

The VS-4216 is a 16 port control matrix switcher that:

 Is RS-422 based, as section 3.1 describes

 Offers simple-to-connect automatic master/slave configuration

 Includes a backlit LCD display showing the status of the matrix switcher

Overview

KRAMER ELECTRONICS, LTD.

 Recalls up to 15 configuration setups via the non-volatile memory

 Is controllable via the front panel buttons, or remotely by RS-485 or RS-

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

controller

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 that may

adversely influence signal quality

 Position your Kramer VS-4216 in a location free from moisture and away

from excessive sunlight and dust

3.1 About RS-422

RS-422 control switchers differ substantially from video and audio switchers

in both design and in operation, as sections 3.1.1 to 3.1.8 describe.

3.1.1 Signal Terminology

 Connections are between Master and Slave or Controller and Controlled

devices, rather than the regular In and Out or Source and Destination devices.

The difference is not merely one of semantics but a vital distinction when trying

to understand the concept of RS-422 technology

 With a regular In and Out switcher, not only does the front panel have

separate In and Out buttons but the rear panel also has separate ports for input

and output connectors

 With a Master and Slave control switcher, the front panel has separate

Master and Slave buttons but the rear panel has shared Master / Slave

connectors

3.1.2 Standards

RS-422 meets 2 specific standards:

 TIA/EIA-422-B, which defines the electrical specifications

 SMPTE 207M, which defines the rules of exchanging information for

broadcast equipment (the protocol)

3.1.3 Bi-directional Signals

 By using a pair of conductors, each signal travels in both directions via a

balanced line between Master / Slave devices, as Figure 1 illustrates:

Overview

Figure 1: Bi-directional Signals I

 When a Master device changes position with a Slave device, the pins

automatically change, as section 3.1.6 describes and as Figure 2 illustrates:

Figure 2: Bi-directional Signals II

3.1.4 Communication Method via a DB9 Connector

 The Master unit usually sends a command to the Slave device via pins 3(+)

and 8(-) and the Slave device responds to the Master via pins 2(-) and 7(+)

 Keep the communication path clear between the Master and Slave units in

both directions, as the Slave device must respond to a command transmitted by

the Master

 If the Master receives no response from the Slave, the Master will cancel

the communication with the Slave machine and will sometimes flag a message:

no communication. For example, in video production when a special controller

(with play and rewind functionality) is the Master device, each command

transmitted to the Slave device must reach that Slave device and that Slave

device must respond, otherwise the Master device will disconnect

3.1.5 Device Definition

 In many broadcast applications, different machines involved in production

can be either Slaves or Masters. Using a device as a Master means that the

device talks via pins 3 and 8 and listens via pins 2 and 7. In another setup, that

uses the same device as a Slave, this will mean that the device talks via pins 2

and 7 and listens via pins 3 and 8

 For example, an edit controller always works as a Master. During an

editing session, a VTR may be the Slave to the edit controller. However, in a

duplication setup, the VTR may become a Master for a second VTR

3.1.6 Automatic Configuration

 After connecting the DB9 connectors and cables between the controlled

units, the VS-4216 automatically configures which pins to use in the DB9

connector according to the assignment of each machine

Your Matrix Switcher

KRAMER ELECTRONICS, LTD.

3.1.7 Port Definitions

 Modern equipment usually has only one connector, RS-422, which

functions as a Master as well as a Slave

 Some older broadcast equipment contains 3 RS-422 connectors; RS-422-In,

RS-422-Out and RS-422-In/Out. You can only connect a Master to a RS-422-In

port and you can only connect a RS-422-Out port to a Slave. When connecting

to a RS-422-In/Out port

the unit changes dynamically, automatically

reconfiguring the DB9 port pins to be either a Master or a Slave

3.1.8 More Than One Slave

 Communication between one Master and one Slave is simple. However,

communication between one Master and several Slaves, for example, in

duplication applications, is more complicated

 If all the Slaves were to respond simultaneously to a Master command, the

system would grind to a halt. To avoid such a situation, a special algorithm in

the VS-4216 dictates that the Master will receive only the response from the

highest priority slave

with more than one Slave device. For example, in a setup

in which port # 7 is the Master, and ports # 5, # 3 and # 6 are Slaves, the VS-

4216 will only transmit to the Master the reply from port # 3 and will discard all

the other replies

 Pay special attention: in broadcast applications, the most common reply

message from a Slave is the TIMECODE data, therefore, with the above-

described algorithm; the response will come from the lowest numbered Slave

4 Your Matrix Switcher

Figure 3 illustrates the front and rear panels of the VS-4216. Tables 1 and 2

define the front and rear panels of the VS-4216, respectively.

1 Item 1 in Table 2

2 The lowest numbered Slave device

Your Matrix Switcher

Figure 3: VS-4216 Matrix Switcher

Your Matrix Switcher

KRAMER ELECTRONICS, LTD.

Table 1: Front Panel VS-4216 Matrix Switcher Features

# Feature Function

1 Power Switch Illuminated switch supplying power to the unit

2 Master Buttons Select 1 - 16 to connect between a Slave device and a

Master device

3 Slave Buttons Select 1 - 16 to connect between a Master device and a

Slave device

4 MATRIX SLAVE Labels Identifies a cross point between each SLAVE to which the

MASTER displayed alongside it is connected

5 LCD MATRIX MASTER Display Displays the selected MASTER switched to the SLAVE

(alongside the corresponding SLAVE label) and

programming command data

6 LCD STATUS Display Displays the matrix status

7 MENU Button For further programming functions

8 ENTER Button Confirmation button

Table 2: Rear Panel VS-4216 Matrix Switcher Features

# Feature Function

1 RS-422 Ports 16 RS-422 bi-directional connectors

2 CONTROL RS-485 Connector Connector for external RS-485 control (PINOUT: G, -, +)

3 CONTROL RS-232 IN Connector Connect to the PC serial port

4 CONTROL RS-232 OUT Connector

Connect to the RS-232 IN port of the next unit

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

4.1 Connecting the VS-4216 Matrix Switcher

To connect the VS-4216, connect the following

to the rear panel ports:

 Power cord

 DB-9M Connector cables from the Slave and the Master devices

 A PC via the null-modem adapter (when using the Kramer Control

software or other controller) if control via RS-232 is required

 RS-485 Phoenix terminal block cable if control via RS-485 is required

4.1.1 Connecting a PC

To connect a PC to the VS-4216, using the Null-modem adapter provided

with the machine (recommended):

 Connect the RS-232 DB9 rear panel port on the VS-4216 unit to the Null-

modem adapter and connect the Null-modem adapter with at least 3

straightforward wires (pins 2, 3 and 5) to the RS-232 DB9 port on your PC

To connect a PC to the VS-4216, without using a Null-modem adapter:

 Connect the RS-232 DB9 port on your PC to the RS-232 DB9 rear panel

1 Switch OFF the power on each device before connecting it to your VS-4216. After connecting your VS-4216, switch on its

power and then switch on the power on each device

Operating Your Matrix Switcher

port on the VS-4216 unit, as Figure 4 illustrates (depending on whether the PC

has a 9-pin or 25-pin connector)

Figure 4: Connecting a PC without using a Null-modem Adapter

5 Operating Your Matrix Switcher

Operate your VS-4216 via:

 The front panel buttons, as this section describes

 RS-232 / RS-485 serial commands transmitted by a touch screen system,

, or other serial controller

5.1 Startup Status Display

After switching on the power, the LCD MATRIX MASTER and LCD STATUS

displays show the following (for software version 1.0):

KRAMER ELECTRONICS, Ltd software

16 port RS422 Matrix v. 1.0_

Figure 5: Startup Status Display

5.2 Bi-directional Connections

To connect a Slave to a Master:

1. Press the appropriate SLAVE button.

The blinking cursor appears.

1 For instructions on using the Windows 95/98/NT

Control Software, refer to the separate user manual (included on the

CD-ROM in .pdf format), Kramer Control Software

Operating Your Matrix Switcher

KRAMER ELECTRONICS, LTD.

2. Press the appropriate MASTER button.

The MASTER # appears in the LCD Matrix Master display

and the

SLAVE switches to the MASTER.

Note that:

 Pressing a Slave # button and a Master # button, when the # is the same,

displays the message: Impossible to connect the same MASTER and SLAVE

 Pressing a Master # button before a Slave # button displays the message:

Assign SLAVE first

5.3 MENU Commands Sequence

Press the MENU button

to scan the range of commands, as follows:

Clear single SLAVE

YES -> #SLAVE, NEXT -> menu _

Clear single MASTER

YES -> #MASTER, NEXT -> menu _

Clear ALL connections

YES -> enter, NEXT -> menu _

Assign ALL to MASTER

YES -> #MASTER, NEXT -> menu _

Recall SETUP

YES -> #SLAVE, NEXT -> menu _

Store SETUP

YES -> #SLAVE, NEXT -> menu _

Exit ->MENU SETUP->ENTER

Figure 6: Sequence of MENU Commands

5.3.1 Clearing a Single Slave

Remove a single Slave to Master connection, by:

 Replacing it with a new Slave to Master connection

, or

 Deleting it

To delete a single Slave to Master connection, do the following:

1. Press the MENU button once.

The Clear single SLAVE screen appears.

1 Item 5 in Figure 3

2 Pressing a button, which is not relevant to the current MENU function, aborts the menu command

3 This automatically clears the previous connection

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