VCS VideoJet X.21 User manual

X.21
G.703
VideoJetVideoJet
Manual

4VideoJet X.21/G.703 Manual
Copyright This manual is copyrighted by VCS with all rights reserved. Under
the copyright laws, this manual cannot be reproduced in any form
without the prior written permission of VCS. No patent liability is
assumed, however, with respect to the use of the information con-
tained herein.
Edition: February 2000
© Copyright 2000 VCS Video Communication Systems GmbH
Disclaimer This manual has been validated and reviewed for accuracy. The
included sets of descriptions were accurate at the time of this man-
ual’s production. However, succeeding products and manuals are
subject to change without notification. Therefore, VCS assumes no
liability for damages incurred directly or indirectly from errors, omis-
sions or discrepancies between the equipment and this manual.
Trademarks All names for hardware and software used in this manual are
almost certainly registered trademarks and should be treated
accordingly.

5
VideoJet X.21/G.703Manual
Contents
Chapter 1 Preface .......................................................................................13
Purpose of this Manual........................................................13
Audience .............................................................................13
Conventions ........................................................................14
Special Message Formats.............................................14
Other Conventions ..............................................................15
Chapter 2 Introduction ................................................................................17
X.21/G.703 Transmission Concept .....................................18
Typical Applications ......................................................20
Benefits ...............................................................................21
Package Contents ...............................................................23
Front Panel Connectors ......................................................24
Rear Panel Connectors .......................................................26
Chapter 3 Quick Installation Guide .............................................................29
Step 1: Connecting a Camera or Monitor ............................30
Step 2: Connecting to the X.21 Transmission Line .............31
Step 2: Connecting to the G.703 Transmission Line ...........32
Step 3: Connecting Power ...................................................33
Chapter 4 Hardware Installation .................................................................35
Connecting Video Sources or Displays ...............................35
Connecting Audio Equipment ..............................................36
Connecting Data Terminals .................................................37
Terminal Port ................................................................37
Transparent Data Port ..................................................38
Connecting External Sensors and Controlling
Peripheral Devices ..............................................................39
Connection to the X.21 Leased Line ...................................40
Assignment of the Port to X.21/V.11 ............................42

Contents
6VideoJet X.21/G.703 Manual
Connection to the G.703 Leased Line .................................43
Assignment of the Port to G.703 ...................................44
Chapter 5 Configuration with the NCTerminal Software .............................45
Installation of the NCTerminal Program ...............................46
Starting the Terminal Program ............................................46
Configuration Options in the Main Window
of NCTerminal ......................................................................48
Establishing a Connection.............................................49
Status Displays of NCTerminal .....................................49
Configuring the VideoJet X.21/G.703-
Devices with NCTerminal ..............................................50
Audio and Video Settings ....................................................51
Audio Settings................................................................52
Video Settings................................................................54
Alarm Configuration .............................................................55
Alarm Stamping .............................................................55
Alarm Input Activation....................................................56
Motion Detection............................................................57
Checklist for Activating Motion
Detection .......................................................................58
Output Action.................................................................59
Configuration of the Switching Output..................................60
Camera Configuration .........................................................62
Name/Time Stamping....................................................63
Allocation of Camera Name...........................................63
Video Standards ...........................................................63
Interface Configuration ........................................................64
Common Configuration ........................................................66
Realtime clock ...............................................................67
Allocating a Device Name..............................................67
Device Number (ID) ......................................................67
Version Display..............................................................67
Chapter 6 Advanced Features ....................................................................69
Automatic Connection Feature ............................................69
Video Motion Detection Feature ..........................................70
Firmware Upload .................................................................71

Contents
7
VideoJet X.21/G.703Manual
Chapter 7 Technical Specification ..............................................................73
Network Protocol and Standards .........................................73
Interfaces at the Videojet.....................................................73
Power Adapter .....................................................................74
Physical Specification..........................................................74
Environmental Specification ................................................74
Electromagnetic Emmissions and Safety ............................75
Chapter 8 Troubleshooting .........................................................................77
General Service Remarks ...................................................77
Basic Functioning ................................................................78
Power LED ...................................................................78
Terminal Program .........................................................79
Troubleshooting Connection Problems ...............................79
Troubleshooting the Video Connection ...............................80
Testing the Audio Connection .............................................81
Chapter 9 Glossary .....................................................................................83
Chapter 10 Index ..........................................................................................85

Contents
8VideoJet X.21/G.703 Manual

9
VideoJet X.21/G.703Manual
Figures
Fig. 2-1 VideoJet X.21/G.703Concept .................... 18
Fig. 2-2 VideoJet X.21 System Concept and
Interfaces............................................................. 22
Fig. 2-3 VideoJet G.703 System Concept and
Interfaces............................................................. 22
Fig. 2-4 VideoJet X.21/G.703 Front Panel
Connectors.......................................................... 24
Fig. 2-5 VideoJet X.21 Rear Panel Connectors.......... 26
Fig. 2-6 VideoJet G.703 Rear Panel Connectors....... 27
Fig. 3-1 Connecting a Camera or Monitor........................ 30
Fig. 3-2 Connecting to the X.21 transmission line............ 31
Fig. 3-3 Connecting to the G.703 Transmission Line....... 32
Fig. 3-4 Connecting Power to the X.21 Interface.............. 33
Fig. 3-5 Connecting Power to the G.703 Interface........... 33
Fig. 4-1 Pin Assignment................................................... 36
Fig. 4-2 Pin Assignment of the I/O Connector .................. 39
Fig. 4-3 Connection Scheme for the X.21 Leased Line.... 41
Fig. 4-4 Pin Assignment of the X.21 Socket on
VideoJet X.21 ................................................ 42
Fig. 4-5 Connection Scheme for the G.703 Leased Line.. 43
Fig. 4-6 Pin Assignment at the G.703 Socket at
VideoJet G.703 ............................................. 44
Fig. 5-1 Configuration of the COM Port............................ 47
Fig. 5-2 Status Display of NCTerminal ............................. 48
Fig. 5-3 Audio and Video Settings.................................... 51
Fig. 5-4 Setting Local Audio Levels .................................. 53
Fig. 5-5 Configuration of the Alarm Inputs........................ 55
Fig. 5-6 Configuration of the Output Action...................... 58
Fig. 5-7 Configuration of the Switching Output................. 61

Figures
10 VideoJet X.21/G.703 Manual
Fig. 5-8 Camera Configuration.......................................... 62
Fig. 5-9 Interface Configuration........................................ 64
Fig. 5-10 Common Configuration........................................ 66

11
VideoJet X.21/G.703Manual
Tables
Tab. 5-1 Connection Status Display ................................. 49
Tab. 5-2 Status Display for Signal Input and Relay
Output ................................................................. 50
Tab. 5-3 Audio Coding Method ......................................... 52
Tab. 5-4 Activation Display ............................................... 56

Tables
12 VideoJet X.21/G.703 Manual

13
VideoJet X.21/G.703Manual
Preface
1
Congratulations on your purchase of the VCSVideoJet X.21/
G.703 multimedia LAN adapter for X.21/G.703 leased lines.
The VideoJet X.21/G.703 multimedia LAN adapters provide
connectivityfor video, audioand datasources by transmissionover
a X.21/G.703 leased line. The units are available as encoder units
VideoJetXS/GS , featuring a video input for connection of video
sources as cameras for example, or as decoder units Video-
Jet
XE/GE , providing a video output for direct connection of a mon-
itor.
VideoJet X.21/G.703 allows for transport of video, accompa-
nying audio (optional) and data over a standardized and leased
X.21/G.703 transmission line.
Purpose of this Manual
This manual describes the features of the VideoJet X.21/
G.703 unit and provides installation and configuration instruc-
tions. When discussing features, functions, or specifications that
applyto both encoderand decodermodels, the manualrefers tothe
VideoJet X.21/G.703 unit without addition.
Audience
To configure and install theVideoJet X.21/G.703 units, you
should have the following background and experience:
lBasicknowledgeof network managementconcepts andtermi-
nology.
lWorking knowledge of tools and procedures for installing and
operating sensitive electronic equipment.

Preface
14 VideoJet X.21/G.703 Manual
Conventions
Special Message
Formats
This manual uses the following symbols and notation in order to
highlight special messages:
Tips and Notes
This symbol marks hints and tips which will make the usage of your
VideoJet X.21/G.703 as simple and comfortable as possible.
Information required
Wherever this symbol appears certain information is required for
correct configuration and operation. Eventually you need to talk to
users, manufacturers of connected equipment or a system admin-
istrator of the X.21/G.703 leased line in order to gather the required
information.
Warning
All instructions which are accompanied by the shown symbol
should be carefully followed in order to avoid potential damage to
your VideoJet X.21/G.703 or connected equipment and
ensure your personal safety.

Preface
15
VideoJet X.21/G.703Manual
Other Conventions
This manual uses the following typographical conventions:
italics Command and directory names.
courier font Screen text, user-typed command-line entries.
„courier font“ User typed string, enter without double quotes.
Initial Caps Menu titles and window and button names.
[Enter]Named keys in text are shown enclosed in
square brackets. The notation [Enter] is used
for the Enter key and the Return key.
[Ctrl]+C Two or more keys that must be pressed simul-
taneously are shown in text linked with a plus
(+) sign.
ALL CAPS DOS file and directory names.
<courier font> Screen output, dependent on keyboard entry.

Preface
16 VideoJet X.21/G.703 Manual

17
VideoJet X.21/G.703Manual
Introduction
2
For the first time,VideoJet X.21/G.703 implements live video
transmission on an existing X.21/G.703 leased line. Efficient com-
pression, according to the ITU-T standard H.261, enables video
communication on any X.21/G.703 leased line.
VideoJet X.21 only has to be connected to the DCE terminating
adapter (DCE = data circuit-terminating equipment) of the X.21
port. The transmission speed is automatically adapted to the data
transmission rate of the line and ranges from 64 Kbit/s to 2.048
Mbit/s. The device is ready for operation on delivery. A terminal pro-
gram is supplied for additional configuring.
VideoJet G.703 only has to be connected to the DCE terminat-
ing adapter (DCE = data circuit-terminating equipment) of the
G.703 interface. The transmission speed is automatically adapted
to the data transmission rate of the line (2.048 Mbit/s). The device
isready foroperationon delivery.A terminalprogramis suppliedfor
additional configuring.
This chapter will familiarize you with the underlying concept of the
VideoJet X.21/G.703 multimedia gateway. It will provide an
overview of the features and will give examples of typical applica-
tions. After an introduction to the front and back panel connectors,
you are in a good position to follow the installation and configuration
details given in the subsequent chapters.

Introduction
18 VideoJet X.21/G.703 Manual
X.21/G.703 Transmission Concept
Until now, video and audio signals have been transmitted along
dedicated lines, e.g. coaxial cable. To make use of existing digital
networks and the simpler installation that entails, devices are
required to convert broadband analog video and audio signals for
existing transmission lines. The main advantage clearly lies in the
virtually unlimited loss-free transmission distance between sender
and receiver. The digitized video live image is transmitted across an
X.21/G.703 transmission line with the VideoJet X.21/G.703.
Fig. 2-1 VideoJet X.21/G.703 Concept
TheVideoJet X.21/G.703 transmission system was designed,
to enable multimedia data streams over an existing X.21/G.703
leased line. It combines state-of-the art compression technology
with ease-of-use, enabling you to transmit full colour live video with
accompanyingfull-duplex audioand dataover aX.21/G.703 leased
line.
The VideoJet X.21/G.703 functions as a DTE (data terminal
equipment). An adapter used as the line termination for the X.21/
G.703 leased line must therefore be used as the DCE (data circuit
terminating equipment).
The X.21 port of theVideoJet X.21 is directly connected to this
termination. The transmission rate matches the clock output by the
DCE (data circuit-terminating equipment). It can be anything from
64 Kbit/s to 2.048 Mbit/s (x times 64 Kbit/s, where x must not be
greater than 32).
DTE
VideoJetXE
Monitor
Receiver
VideoJetXS
DCE
Sender X.21/G.703
Transmission Line
DCE
DTE
Transmitter

Introduction
19
VideoJet X.21/G.703Manual
The G.703 port of the VideoJet G.703 is directly connected to
this termination. The transmission rate is always 2.048 Mbit/s.
Also X.21/G.703dial-up networks exist, when the connection is
established by dialling. However, the VideoJet X.21/G.703
operates on the basis of a X.21/G.703 leased line for which the
function for establishing the connection via a dial-up connection is
not supported.
VideoJet X.21/G.703 is available in two versions, as a
VideoJetXS/GS sender or as a VideoJetXE/GE receiver. The
sender links every PAL or NTSC video source at that side, which is
beingmonitored to the X.21/G.703 transmission port. The receiver
displays the video image on any standard PAL or NTSC monitor on
the receiving end of the X.21/G.703 leased connection. Remote
control of peripheral components like pan/tilt/zoom cameras is facil-
itated by the bidirectional serial interface.
With the audio option, bidirectional transmission of audio signals
acrosstheX.21/G.703leasedlineisalsopossible.Anadditional“A”
in the name indicates that the audio option is included. For exam-
ple, VideoJet
XS/GS senders with the audio option have the des-
ignation VideoJetXSA/GSA . VideoJetXE/GE receivers with
audio are called VideoJetXEA/GEA . Two additional cinch sockets
for audio input and output and an RJ11 socket for a telephone
handset are led out of the housing for the audio option only.
Subsequent reconfiguration of a VideoJetXS/GS sender to a Vid-
eoJet
XE/GE
receiver is not possible. A complete system always
comprises an encoder (sender) and a decoder (receiver).
Subsequent upgrading to include the audio option is not possible
either.

Introduction
20 VideoJet X.21/G.703 Manual
Typical
Applications
VideoJet X.21/G.703 provides a set of advanced features for
remote video surveillance and security: The integrated motion
video sensor will set up a connection autonomously when motion in
the scene is detected. Pre-alarm history is stored in a video ring
buffer for alarm verification:
lVideo surveillance of rooms and buildings
lRemote maintenance of machinery
lFacility management and facility security

Introduction
21
VideoJet X.21/G.703Manual
Benefits
VideoJet X.21/G.703 is a flexible, high-performance, easy-to-
use device that provides a cost-effective solution for transmission
of live video and audio across X.21/G.703 leased lines. With a min-
imum of setup, you can install and use VideoJet X.21/G.703
within minutes to realize a great variety of applications. The versa-
tility and performance of VideoJet X.21/G.703 is highlighted
by the following list of features:
lLive video, audio, and data transmission over X.21/G.703
leased line
lSupports all usual X.21/G.703 leased lines
lAutomatic and dynamic adaptation to the transmission speed
of the X.21 port between 64 Kbit/s to 2,048 Mbit/s
lConstant transmission speed of the G.703 port of 2,048 Mbit/s
(E1)
lCompact autonomous system, no PC required
lHigh quality, full-motion, full-colour live-video, ITU-T H.261
standard compatible
lHigh video resolution up to 352 x 288 pixels at 25 frames/s
(max.)
lSender and receiver units available
lTransparent full-duplex data channel (RS232), e.g. for pan/tilt/
zoom camera control
lFull-duplex audio transmission (optional)
lControl input for external sensors, e.g. switch or contact
lRelay output for switching of external devices, e.g. door entry
lIntegrated video motion sensor for security applications
lAutonomous connection setup
lFlash memory for firmware upgrade

Introduction
22 VideoJet X.21/G.703 Manual
Fig. 2-2 VideoJet X.21 System Concept and Interfaces
Fig. 2-3 VideoJet G.703 System Concept and Interfaces
Camera
VideoJet X.21
Monitor
X.21 leased line (DTE)
Control Input
Control Output
Serial Interface
alternative
Camera
VideoJet G.703
Monitor
G.703 leased (DTE)
Control Input
Control Output
Serial Interface
alternative