Page 1
TITAN
Videocodec
ISDN Videocodec
Operator Manual
Page 2
TITAN
VIDEOCODEC
ISDN VIDEOCODEC
OPERATOR MANUAL
Page 3
ACKNOWLEDGEMENTS
LabWindows is a registered trade
mark of National Instruments
A Publication of
AVT Audio Video Technologies GmbH
Rathsbe r gstraße 17
D-90411 Nürnberg
Telephone +49-911-5271-0
Telefax +49- 911-5271-100
Internet: http://www.avt-nbg.de
Email: info@avt-nbg.de
Printed in Germany, April 1997
AVT Au dio Video Technologies Gm bH
All rights r eserved. Reproduction i n
whole or in parts is prohibited wi thout th e
written consent of the copyright owner.
The information contained in this
publicat ion i s ac cur ate to t he b es t of AVT’
knowledge. However, AVT disclai ms any
liability resulting from the use of this
information and reserves the right to
make changes without notice.
Service Hotline
In the unlikely event of technical problems, please do not hesitate t o use our Service Hotline.
We will be happy to as sis t you.
The numbers are:
Telephone: (+49 911) 5271-0
Telefax: (+49 911) 5271-100
Important no t e:
The TITAN videocodec should always be
transported in its original packaging.
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040 7448 329657 (04.97) PC-SW 4.5
TABLE OF CONTENTS
TABLE OF CONTENTS
4
1 SYSTEM DESCRIPTION
8
1.1 General
8
1.2 System concept
9
1.3 Frame structure of non-ISDN connections
13
2 PUTTING THE SYSTEM INTO OPERATION
30
2.1 Mounting the TITAN videocodec
30
2.2 Connection to the video interfaces
30
2.3 Connection to the audio interfaces
30
2.4 Connection to the data interfaces
31
2.5 Selection of the network interface
31
2.6 Connection to the data network
32
2.7 Connection to the operator interfaces
32
2.8 Connection to the mains voltage
32
2.9 Opening the device
32
2.10 Setting the G.703 network interface
33
2.12 Switching on the system
34
3 OPERATION WITH A PC
40
3.1 Starting the software
41
3.2 Operating elements on the screen
42
4 OPERATION WITH THE OPERATOR PANEL
96
4.3 Programming example: Storing calling numbers and unit configurations for
ISDN connections
98
4.4 Programming example: Setting the RS232C or RS485 interface for PC
operation
101
5 COMMANDS
116
5.1 Structure of the commands
116
5.2 System responses
117
6 TTL INTERFACE APPLICATIONS
142
6.2 Printer mode
143
7 REMOTE OPERATION
146
7.1 Remote control via modems
146
7.2 Remote control via terminal adapters
148
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040 7448 32 9657 ( 04.97) P C-S W 4.5
7.3 Remote control via the LSD channel
148
8 FACTORY SETTINGS
150
8.1 Video settings
150
8.2 Audio settings
151
8.3 Settings of the Interface Unit
151
8.4 Settings that are not stored
152
9 TECHNICAL DATA
154
9.1 Video
154
9.2 Audio
155
9.4 Line interfaces
157
9.6 Mechanical design
158
9.7 Power supply
158
9.8 Miscellaneous
158
A10 ANNEXE 1
CONFIGURATION OF THE TA-MULTI Configuration of the TA-Multi terminal adapter for TITAN applications
160
A11 ANNEXE 2
EXTENSION OF RANGE OF FEATURES: UPDATE, UPGRADE
164
A11.1 Features extension of the network interface (upgrade)
164
A11.2 Update of unit and operating software
165
A11.3 Order forms
165
A12 ANNEXE 3
OPTION: ON SCREEN DISPLAY (OSD)
172
A12.1 Menu tree
173
A12.2 Menu operation
173
A12.3 MAIN menu
174
A12.4 CALL menu
175
A12.5 AUDIO menu
180
A12.6 VIDEO menu
181
A12.7 CAMERA menu
182
A12.8 GRAPHIC menu
184
A12.9 SETUP menu
185
A12.10 On screen display messages
188
A13 ANNEXE 4
OPTION: INVERSE MULTIPLEXER
AS PER ISO/IEC CD 13871
FOR 2 TO 6 B-CHANNELS
190
A13.1 Brief explanation of ISO/IEC CD 13871 and BONDING
190
A13.2 Use of ISO/IEC 13871 in the TITAN videocodec
192
A14 ANNEXE 5
Differences between Titan and Titan ISDN
194
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040 7448 329657 (04.97) PC-SW 4.5
A14.1 General
194
A14.2 Interfaces
194
A14.3 Software
195
A14.4 Front Display
198
A15 ANNEXE 6
Connection of Cameras
200
A15.1 General
200
A15.2 CANON Camera VC-C1
200
A15.3 PANASONIC Camera
201
INDEX
202
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040 7448 32 9657 ( 04.97) P C-S W 4.5
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1–8040 7448 329657 (04.97) PC-SW 4.5
1 SYSTEM DESCRIPTION
1.1 General
The TIT AN videocode c is designed for vario us videoconfere nce applicat ions.
With it, full-motion pictures, still pictures, sp eech signals a nd data sign als can
be transmitted at bit rates from 56 kbit/s to 2 Mbit/s.
Due to its variety of interfaces, the TITAN videocodec can be operated in a
wide range of networks. Its use is not limited to videoconference app lications.
The TITAN videocodec i s excell en tly suited for mo nitori n g pu rpos es an d al so
for TV transmission.
In order to meet the requirements of the different applications, the TITAN
videocodec is available in three variants:
TITAN 2, TITAN 6 and TITAN30.
The difference between the variants is the maximum transmission rate.
The TITAN 2, 6 and 30 videocodecs have maximum data rates of 128 kbit/s,
384 kbit/s and 1920 kbit/s respectively. An upgrading of the different variants
is possible only using softwar e. All the interfaces an d functions described here
are provided in all variants.
Note
The TIT AN videocodec s hould al ways be tran sported in its original pakkaging.
FIGURE 1.1 TITAN VIDEOCODEC
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CHAPTER 1: SYSTEM DESCRIPTION
1.2 System concept
All plug-in units (i ncluding the power supply) of the T ITAN vid eocod ec are accommodated in a housing (see FIGURE1.1) with the dimensions 449 mm ×
133 mm (3 U) × 395 mm (W × H × D). TITAN can be installed as a table top
unit or , using m ounting br ackets, in 19" or ETSI ra cks. Suf ficie nt ve ntilation is
ensured by ventilation holes located at the front and side of the housing.
The TITAN videocodec can be operated with AC voltages between 90 and
253 V (nominal voltage range 100 to 240 V) without the need for switching.
The mains frequency can also vary between 45 and 65 Hz. These tolerance
ranges mean that the codec can be used in almost every country. The maximum power consum ption is appr ox. 170 VA. T wo temp erature-cont rolled fans
have been built in for cooli ng purposes. Since th e fans’ speeds depend o n the
temperature, they generate a minimum of noise.
In addition to the slot for the power supply, the TITAN videocodec has four
slots for the followi ng plug- in units: Gr aphics C odec, Mo tion V ideo Code c, Audio Codec and Inter face Uni t. The equipment also has a keyp ad an d two- line
display, both of which are located on the front panel. FIGURE 1.1 shows a
view of the closed housing and FIGUR E 1.2 shows a view of the opened unit.
In the following sections, the functions of the plug-in units are described in
more detail.
FIGURE 1.2 VIEW OF THE OPENED HOUSING OF THE TITAN VIDEOCODEC
1.2.1 Motion Video Codec
The motion video codec of the TITAN videocodec mee ts the requir eme nts of
ITU-T Recommendatio n H.261. Both picture for mats specifie d in H.261: QCIF
(Quarter Common Intermediate Format) and FCIF (Full Common Intermediate Format) have been implemented. These formats are supported up to the
maximum frame rate of 30 Hz.
(CPU
&KURNC[ RCPGN YKVJ MG[RCF
5NQVU
2QYGT UWRRN[ UNQV
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1–10040 7448 329657 (04.97) PC-SW 4.5
CHAPTER 1: SYSTEM DESCRIPTION
CVBS or Y/C signals can be used as inpu t signals. CVBS or R GB signals ar e
provided at the out put. For CV BS signals, the video standards PAL a nd NTSC
can be selected independently of each other as the input and output signals
of the motion video codec.
Picture in picture (PIP) function
The motion video c odec provid es the picture in picture (PIP) function. The PIP
function is realised in the h ardware. The entire compu ting power of the motion
video codec can thus be utilise d for the mo tion video picture . Three P IP sizes
(tiny , small and large) and fou r PIP positions can be selecte d. The background
picture and the PIP can be selected from a number of sources. TABLE 1.1
contains an overview:
TABLE 1.1 SELECTION POSSIBILITIES FOR PIP AND BACKGROUND PICTURE
1.2.2 JPEG graphics codec (option)
The JPEG graphi cs cod ec is inten ded for the tr ansm iss ion o f do cume nts and
pictures of objects with a very high resolution.
The graphics picture is transmitted in colour and with a resolution as defined
by ITU-R 601 (720 pixels × 576 lines).
Baseline is available as the JPEG mode.
In the baseline mode, the graphics pi cture is displayed only aft er the transmission of the complete picture.
The graphics picture is transmitted via a 64-kbit/s data stream in the HSD
(High Speed Data) channel.
The graphics codec also offers the possibility of displaying a cursor in the graphics picture and d rawing wi th this c ursor. Every terminal has a cu rsor , the colour and shape of which can be chosen. The graphics picture is overlaid with
a transparent picture in which the cursor can be used to draw (controlled by
the mouse). Since the drawing i s in the over lay picture, it can be delete d independently of the graphics picture.
The video format can be set a s either PAL or NTSC for the graphic an d motion
video transmission.
CVBS or RBG signals are provided for the input and the output. The same
type of signals should be selected for both input and output, however.
1.2.3 Audio codec with video crossbar
This plug-in unit contains a complete audio processing circuit including an
echo canceller, an audio codec with various coding algorithms and a video
crossbar to control the inputs and outputs.
Background PIP
Received picture
Own picture
Received picture
Graphics picture
Graphics picture
Own picture
Received picture
Graphics picture
Preview –
JPEG Joint Photographic
Experts G r oup
JPEG standard
Standard for the transmission of stationary
pictures
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CHAPTER 1: SYSTEM DESCRIPTION
Audio codec
The TIT AN vide ocodec’s audio codec encodes a nd decodes the audio data stream in accordance with the following standards:
Audio interfaces
The following audio interfaces are provided by the TITAN videocodec:
– 2 microphone inputs with digital mixer
– Line input and output
– Recorder interface for recording and playback
– Interface for an external telephone hybrid – Aux
– Connection for an active loudspeaker
– integrated echo cancellation
The transmitted and re ceiv ed so und is m ixed a nd pr ovided at the recorder interface as one sign al for re cordi ng. For pl ayback, the signal from the re corde r
is mixed into both the receive and the transmit circuits of the TITAN videocodec.
The same procedure is u sed for the external telephone hybrid. Her e, however ,
an echo canceller has been integrated which cancels echo occurring in the
telephone line.
Echo cancellation
After all audio de tectors (microp hones) and loud speakers have be en installed
and the levels set, the TITAN videocodec can be used to measure the feedback and then calibrate the echo cancellation of the system set up. This
should be done before every video transmission.
Video inputs
The sockets for the video i np uts o f th e T ITAN vide ocodec can be assign ed t o
various signal types. There are four video input modes available for this purpose. These are shown in TABLE 1.3.
TABLE1.2 BANDWIDTHS AND DATA RATES OF THE AUDIO CODING STANDARDS
Standard Bandwidth Data rate
ITU-T G.711 a-Law 300 Hz to 3400 Hz 64 kbit/s
ITU-T G.711
µ
-Law 300 Hz to 3400 Hz 64 kbit/s
ITU-T G.722 mode 2 50 Hz to 7000 Hz 56 kbit/s
ITU-T G.722 mode 3 50 Hz to 7000 Hz 48 kbit/s
ITU-T G.728
a
a For the new interface unit (ID no. 229503) and from SW version 4.0 onwards
300 Hz to 3400 Hz 16 kbit/s
Philips “GSM”
b
b Not for the new interface uni t (I D no. 229503 ) w it h SW versio n 4. 0.
300 Hz to 3400 Hz 16 kbit/s
TABLE1.3 POSSIBLE INPUT SIGNALS FOR THE VIDEO INPUT MODE
CVBS 1 CVBS 2 CVBS 3 CVBS 4 CVBS 5 CVBS 6 Y/C RGB+S
++----++
++++- - -+
++- -+++++++++- -
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CHAPTER 1: SYSTEM DESCRIPTION
The Y/C and RGB interfaces are par ticularly imp ortant for the JPEG gra phics
option and for high-quality video picture transmission, such as for the transmission of TV signals.
Video outpu ts
The sockets of the video outputs can also be assigned to different signal types. For the video outputs, th ere are t wo different m odes available. These are
shown in TABLE 1.4.
The RGB interface is especially suited as a high-quality video output (JPEG
graphics option or motion video codec for the transmission of TV signals, for
example).
1.2.4 Interface Unit 2 / 6 / 30
The only diffe rence b etween the TITAN videocodec variants is in the softwa re
(EPROM) of the Interface Un it. The multipl exer (design ed in accordance w ith
ITU-T Rec. H.221 and H.242) and the system contr ol are located on this plugin unit which also provides the network, data and operator interfaces.
An up to six-fold i nband signalling ( H.221 or H .331) has bee n implemented for
ISDN transmission. This signalling enables a synchronisation
between the
individual data channels
, which is required because of the different transit
times in ISDN. Both bit and byte synchronisation are processed.
For E1/T1 transmissions, as well as for the 1x X.21 or RS449 interfaces,
H.221 inband signalling is used to report the assignment of the individual
timeslots of the frame to the remote end. The frame structure is shown in
SECTION 1.3.
TABLE 1.4 POSSIBLE OUTPUT SIGNALS FOR THE VIDEO OUTPUT MODE
CVBS 1 CVBS 2 CVBS 3 CVBS 4 CVBS 5 CVBS 6 RGB+S
++----+
++++++-
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CHAPTER 1: SYSTEM DESCRIPTION
Network interfaces
The following network interfaces are available:
– E1, 2-Mbit/s interface as per ITU-T Recommendation G.703 and G.704
– T1, 1.544-Mbit/s interface as per ITU-T Recommendation G.703 and
G.704
– RS449, n × 64 kbit/s to 1920 kbit/s or n × 56 kbit/s to 672 kbit/s
–1 × X.21, n × 64 kbit/s to 1920 kbit/s or n × 56 kbit/s to 672 kbit/s
–6 × X.21, 64/56 kbit/s
Data interfaces
The TIT AN vide ocodec has three different data interfaces f or the transm ission
of additional data. All interfaces are implemented as DCEs.
– HSD for High Speed Data (64kbit/s)
– LSD for Low Speed Data between 300 and 38400 Baud.
– TS16 (Time Slot 16) for dialling information in E1 networks
Operator interfaces
The following four operator interfaces are available for the control of the
TITAN videocodec:
– RS-232C / Mouse
–TTL
– RS-232C
–RS-485
1.3 Frame structure of non-ISDN connections
1.3.1 Frame structure of the E1 2-Mbit/s signal
A multiplex frame of the 2-Mbit/s signal consists of 32 timesl ots with 8 bit each.
The frame length is 125 µs (the frame frequency is 8 kHz).
FIGURE 1.3 MULTIPLEX FRAME OF THE 2-MBIT/S SIGNALS
DTE Data Terminal
Equipm ent
DCE Data Circuit Equipment
:
; ; ; ;: & 0
(TCOG CNKIPOGPV UKIPCN 5GTXKEG FKIKVU
6KOGUNQV
µU HTCOG
D-Bit: Prompt maintenance alarm on the remote side
N-Bit: Deferred maintenance alarm on the remote side
Y1…Y4: National operator bits
X: International operator bit
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CHAPTER 1: SYSTEM DESCRIPTION
Timeslot 0 contains alternately the frame alignment signal and the service digits. The frame alignment signal is for synchronisation, the service digits
transmit alarms to the remote end. Timeslot 16 is for the transmission of dialling information and cannot be used for the transport of data.
Two different frame formats have been defined for the 2-Mbit/s data stream:
– the double-frame format
– the CRC4-frame format
The double-frame format correspond s exactly with FIGURE 1.3, in the CRC4
frame format, a so-called check bit is transmitted as the first bit of the frame
alignment word. In order to make optimum use of the capabilities of the connected terminals, the ITU-T Recomm endation H.242 has been fu lly integrated
in addition to H.221. F or unidi re ctional co nnections, the ITU-T Reco mme ndation H.331 is used. Thi s information is transmitted in time slot 1. The inb and signalling as per H.221/H.24 2 or H.3 31 is repeate d every 80 fram es (10ms). In
the first 16 frames, the eighth bit is used for inband signalling (= 1.6kbit/s).
The remaining seven bits in timeslot 1 of each frame, as well as the eighth bits
of frames 17 to 80 can be used for other signals (see FIGURE 1.4).
FIGURE 1.4 POSITION OF INBAND SIGNALLING WITHIN THE 2-MBIT/S DATA STREAM
1.3.2 Frame structure of the T1 1.544-Mbit/s signal
The frame structure is as defined in ITU-T G.704.
Note: In T1 Restricted mode (56 kbi t/s), the a/b bits (see Rec. G.704 ) are set
to 0/0 in unused channels and to 1/1 in used channels. The data in unused
channels is 0111111.
1.3.3 Frame structure of the data stream as per X.21 and RS449
The frame structure for 1 × X.21 and for RS449 is similar to that of E1. The
number of available timeslo ts, however , depends on the dat a rate of the transmission path. A network clock of 256 kHz, for example, can be used to transmit 256 kbit/s which corresponds to four timeslots at 64 kbit/s. FIGURE 1.5
shows the multiplex frame for a network clock of 384 kHz (= 6 timeslots at
64 kbit/s).
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K
! ! ! !
6KOGUNQV QH C HTCOG 6KOGUNQV QH C HTCOG
H-bit: Bit i of the inband signalling
?-bit: Data e.g. audio or LSD
(TCOG K K VQ
(TCOG L L VQ
YKVJ KPDCPF UKIPCNNKPI YKVJQWV KPDCPF UKIPCNNKPI
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CHAPTER 1: SYSTEM DESCRIPTION
FIGURE 1.5 MULTIPLEX FRAME FOR THE NETWORK INTERFACES 1 × X.21 AND
RS449 FOR A NETWORK FREQUENCY OF 384 kHz
The inband signalling is also transmitted in timeslot 1 in this frame. The position of the inband signalling is the same as that in the 2-Mbit/s data stream. It
is also shown in FIGURE 1.5.
1.4 System components list
The equipping of the TITAN system depends on the application. FIGURE 1.6
shows the front view of the ope ned TITAN housing with the position of the different units. TABLE 1.5 is a list of all plug-in units belonging to the TITAN system with the ordering information.
FIGURE 1.6 FRONT VIEW OF THE TITAN VIDEOCODEC
WITHOUT FRONT PANEL AND DISPLAY UNIT
TABLE1.5 SYSTEM COMPONENTS LIST
Item Designation
1 TITAN power supply module
2 JPEG graphics codec (option)
3 Motion video codec
4 Audio codec with echo cancellatio n
5 Interface unit
6 Videocodec (housing and front panel)
! ! ! *
K
! ! ! !
6KOGUNQV QH C HTCOG
6KOGUNQV
µU HTCOG
H-Bit: Bit i of the inband signalling
?-Bit: Data e.g. audio or LSD
! ! ! !! ! ! !
6KOGUNQV QH C HTCOG
YKVJ KPDCPF UKIPCNNKPI YKVJQWV KPDCPF UKIPCNNKPI
G
C
D
E
F
B
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CHAPTER 1: SYSTEM DESCRIPTION
1.5 Interfaces
The TITAN videocodec has a large numb er o f back- pane l conne ctors. T hese
connectors realise various inte rfaces , depending on applicatio n. FIGURE 1.7
shows the rear view of the codec. The socket designations in the following tables correspond to the labelling on the unit.
FIGURE 1.7 REAR VIEW OF THE TITAN VIDEOCODEC (CONNECTORS)
1.5.1 Audio interfaces
Level settings can be made in ste ps of 1.5 dB . The leve ls indicated are always
referred to 600 Ω, i.e. a level of 0 dBm corresponds to 0.775 V
rms
TABLE 1.6 AUDIO INTERFACE SOCKETS
Socket Function
MIC 1 / MIC 2
Microphone inputs
Line In
Line input
Line Out
Line outpu t
Rec In / Out
Video recorder interface (audio)
Tel In / Out
Interface for external telephone hybrid
SP
Output for active loudspeaker
Socket: Mic 1 / Mic 2 (XLR)
Connect. Signal Electrical characteristics
1
GND
Audio
Level: – 78 to –32 dBm
a
Impedance: 600
Ω
,
sym.
Phantom circuit
(switchable)
Voltage: 13.5 V DC
Int. resistance: 2.13 k
Ω
a Factory setting: –63 dBm
2
Audio a
3
Audio b
Socket: LINE in (XLR)
Connect. Signal Electrical characteristics
1
GND
Audio
Level: – 16 to +6 dBm
a b
Impedance: 600Ω, sym. or
20 kΩ, sym.
a Factory setting: 0 dBm
b Level setting only possible in connection with echo cancellation
2
Audio a
3
Audio b
Note: Impedance selection by jumper; centre GND by jumper
2WUJ
2WUJ
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CHAPTER 1: SYSTEM DESCRIPTION
1.5.2 Video interfaces
The video inputs are configurable in three modes. One socket is assig ned to
different signals, depending on the mode. The socket assignment for the various modes is shown in T ABLE 1.7 and TA BLE 1.8 for the inputs and outputs
respectively .
Socket: LINE out (XLR)
Connect. Signal Electrical characteristics
1
GND
Audio
Level: +6 to –88.5 dBm
abc
Impedance: ~120Ω sym.
a Factory setting: 0 dBm
b Level setting only possible in connection with echo cancellation
c For termination with 600 Ω, the effective level is approx. 1.5 dB than the displayed level
2
Audio a
3
Audio b
Note: Centre GND by jumper
Socket: Speaker (Cinch)
Connect. Signal Electrical characteristics
1
Audio
Audio
Level: +2 to –92 dBm
a
Impedance: <50
Ω
,
unsym.
a Factory setting: 0.5 V
rms
2
GND
Socket: Tel. out / VCR out (Cinch)
Connect. Signal Electrical characteristics
1
Audio
Audio
Level: –1 to –95 dBm
a
Impedance: <50
Ω
,
unsym.
a Factory setting: 0.25 V
rms
2
GND
Socket: Tel. in / VCR in (Cinch)
Connect. Signal Electrical characteristics
1
Audio
Audio
Level: –1 to –23 dBm
a
Impedance: 47 k
Ω
,
unsym.
a Factory setting: 0.25 V
rms
2
GND
TABLE1.7 SOCKET ASSIGNMENT OF THE VIDEO INPUTS
Socket
Mode
CVBS1 CVBS2 Y C R G B SYNC
1
CVBS 1 CVBS 2 Y C R G B Sync
2
CVBS 1 CVBS 2 CVBS 3 CVBS 4 R G B Sync.
3
CVBS 1 CVBS 2 Y C CVBS 5 CVBS 6 * *
4
CVBS 1 CVBS 2 CVBS 3 CVBS 4 CVBS 5 CVBS 6 * *
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CHAPTER 1: SYSTEM DESCRIPTION
TABLE 1.8 SOCKET ASSIGNMENT OF THE VIDEO OUTPUTS
Socket
Mode
CVBS1 CVBS2 R G B SYNC
1
CVBS 1 CVBS 2 R G B SYNC
2
CVBS 1 CVBS 2 CVBS 3 CVBS 4 CVBS 5 CVBS 6
Signal: CVBS in/out (BNC socket)
Connect. Signal Electrical characteristics
1
Video – CVBS Standard: PAL / NTSC
Amplitude: 1 V
pp
±10%
Impedance: 75 Ω, unsym.
Cable type: RG 59
Range: 15 m
2
GND
Signal: YC in (BNC socket)
Connect. Signal Electrical characteristics
1
Video – Lu minanc e and Chro mina nce Amplitude: 1 V
pp
±10%
Impedance: 75 Ω, unsym.
Cable type: RG 59
Range: 15 m
2
GND
Signal: RGB in/out (BNC socket)
Connect. Signal Electrical characteristics
1
Video – Red/Green/Blue Amplitude: 0.7 V
pp
±10%
Impedance: 75 Ω, unsym.
Cable type: RG 59
Range: 15 m
2
GND
Signal: Sync. in (BNC socket)
Connect. Signal Electrical characteristics
1
H. + V. synchronising signal Amplitude: 0.7 to 1.4 V
pp
Impedance: 75 Ω, unsym.
Accuracy: ± 50 ppm
Cable type: RG 59
Range: 15 m
2
GND
Signal: Sync. out (BNC socket)
Connect. Signal Electrical characteristics
1
H. + V. synchronising signal Signal Synchro ni s ation
Amplitud e: 1 . 4 V
pp
±10%
Impedance: 75 Ω, unsym.
Cable type: RG 59
Range: 15 m
2
GND
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CHAPTER 1: SYSTEM DESCRIPTION
1.5.3 Network interfaces
The TIT AN videocodec h as a large number o f network i nterface s and can th erefore be used in a wide range of network environments. With the exception
of the X.21 interfaces 4 to 6, all in terf aces are avai lable si mu ltaneo usl y. Only
one interface type (X.21, E1, T1, RS449) can be active at any given time,
however. The above-mentioned X.21 interfaces can be accessed via two adapter cables which are part of the delivery. If these interfaces are used, then
the RS449 and TS 16 interfaces cannot be used.
1.5.3.1 X.21 interfaces
The TITAN videocodec has up to six X.21 interfaces. Three of these X.21 interfaces can be directly accessed on the rear panel. The other three are provided via adapter cable f rom the RS449 interface and the TS 16 data interface.
The X.21 interfaces a llow access to transmissio n networks an d are da ta interfaces with bit clocks (a byte clock can be used if it is provided by the network).
The X.21 interfaces ca n be used in three mo des which are descr ibed in detail
in the following.
X.21 Mode 1 (1 × X.21)
In this operating mode, onl y the “X.21/Main” interface is availabl e with data rates from 561 to 1920 kbit/s. This is a DTE interface which requires as a tra nsport medium a line in which the data is switched en bloc.
X.21 Mode 2 (1..6 × X.21): ISDN Mode
In X.21 Mode 2, up to six X.21 interfaces operating at 56/64 kbit/s can be
used. The X.21 diall ing p roto col (on l y for 64 kbit /s) is sup por ted fu l ly for e ach
interface. Thus it is pos sible to tra nsmit up to 384kbit/s via a terminal a dapter
in the ISDN. The Bchannels (which might be routed differently) are recombined on the receive side to a common data stream. The transit time compensation (600 ms. maximum) is carri ed out b y the inte grated Inverse M ultiplexer
in accordance with ITU-T Recommendation H.221.
X.21 Mode 3 (ISDN LEASED LINE)
As with mode 2, but without dial ling pr ocedu re. One to six 56-kbit/ s channe ls
are also available.
1 Fro m S W-Version 4.0
Page 20
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CHAPTER 1: SYSTEM DESCRIPTION
Plug: X.21/Main and X.21 no. 2 to X.21 no. 6 (SUB-D 15pole)
Connect . Si gnal Electri cal charact er i stics
1
SHIELD Shield Type: DTE
Level: V.11, symmetrical
Data rate: 56 to 1920kbit/s
for X.21/Main
56/64 kbit/s for other
X.21 interfaces
Range: 100 m
2
Ta Transmit a
3
Ca Controla
4
R a Receive a
5
I a Indicate a
6
S a Signal Element Timing a
7
B a Byte Timing a
8
GND Ground
9
T b Transmit b
10
Cb Controlb
11
R b Receive b
12
I b Indicate b
13
S b Signal Element Timing b
14
B b Byte Timing b
15
not connected
Note:
No. 4 available via adapter cable 3361 328252 at the TS16 interface
No. 5 and 6 available via adapter cable 3361 328253 at the RS449 interface
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CHAPTER 1: SYSTEM DESCRIPTION
1.5.3.2 RS449 interface
The RS449 interface is implemented as a DTE and can be operated at data
rates from 56 kbit/s to 1920 kbit/s. The synchronisation is by loop tim ing. This
interface also req uires that the data is switche d en bl oc, since t here is no transit time compensation between the indi vidual 64/56-kbit/s channels. The mai n
applications of this interface are satellite transmission and time-division multiplexing in company-internal networks.
Plug: RS449 (SUB-D 37pole)
Connect. Signal Electrical characteristics
1
SHIELD Shield Type: DTE
Data rate: 56 to 1920kbit/s
Range: 100 m
Level: V.11, symmetrical
2
(SI) Signal rate indicator (n.c.)
3
not connected
4
SD a Send Data a
5
ST a Send Timing a = RT
6
RD a Receive Data a
7
RS a Request to Send a
8
RT a Receive Timing a = ST
9
CS a Clear to Send a
10
(LL) Local loopback (n.c.)
11
(DM a) Data mode (n.c.)
12
TR a Terminal Ready a
13
RR a Receiver ready a
14
(RL) Remote loopback (n.c.)
15
IC Incoming call
16
(SF/SR) Select freq./rate (n.c.)
17
TT a Transmit Timing a
18
(TM) Test mode (n.c.)
19
GND Signal ground
20
RC Receive common
21
not connected
22
SD b Send Data b
23
ST b Send Timing b = RT
24
RD b Receive Data b
25
RS b Request to Send b
26
RT b Receive Timing b = ST
27
CS a Clear to Send b
28
(IS) Terminal in service (n.c.)
29
(DM b) Data mode (n.c.)
30
TR b Terminal Ready b
31
RR b Receiver ready b
32
(SS) Sel ect standby ( n.c.)
33
(SQ) S ignal quality (n.c.)
34
(NS) New signal (n.c.)
35
TT b Transmit Timing b
36
(SB) S t andby indicator ( n.c.)
37
SC Send common
DTE Data Terminal
Equipm ent
DCE Data Circuit Equipment
n.c. not connected
Page 22
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CHAPTER 1: SYSTEM DESCRIPTION
Plug: RS 449 for X.21 in t erfaces (S UB-D 37pole)
Connect. Signal Electrical characteristics
1
SHIELD Shield Type: DTE
Level: V.11, symmetrical
Data rate: 56/64 kbit/s
Range: 100 m
2
not connected
3
not connected
4
T a 5 Transmit a
5
S a 6 Signal Element Timing a
6
R a 5 Receive a
7
C a 5 Control a
8
S a 5 Signal Element Timing a
9
R a 6 Receive a
10
not connected
11
B a 5 Byte Timing
12
C a 6 Control a
13
I a 5 Indicate a
14
not connected
15
I a 6 Indicate a
16
not connected
17
T a 6 Transmit a
18
not connected
19
GND Ground
20
I b 6 Indicate b
21
not connected
22
T b 5 Transmit b
23
S b 6 Signal Element Timing b
24
R b 5 Receive b
25
C b 5 Control b
26
S b 5 Signal element Timing b
27
R b 6 Receive b
28
not connected
29
B b5 Byte Timi n g b
30
C b 6 Control b
31
I b 5 Indicate b
32
not connected
33
B a 6 Byte Timing a
34
not connected
35
T b 6 Transmit b
36
B b 6 Byte Timing b
37
GND Ground
Note: Only available via adapter cable 3361 328253.
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CHAPTER 1: SYSTEM DESCRIPTION
1.5.3.3 E1 interfaces
This interface provides thirty 64-kbit/s user chan nel s (switched en bloc). The
number of user channels used by the codec is set by means of software. The
timeslots are occupied in ascending order.
Timeslot0 is used for ter minal-to-n etwork signa lling or the frame align ment signal and timeslot 16 is reserved for dialling information. The da ta interface TS
16 can be used to transparently insert dialling information into timeslot 16.
Since the H.2 21 informatio n is only pr esent in the first timeslot (TS1), the user
channels must be switched en bloc. An IS DN pr imar y mu lti plex co nnectio n is
not suitable, since the user channels are routed along different paths in the
network.
Unsymmetrical interface
Symmetrical interface
Socket: Data in / Data Out (BNC)
Connect. Signal Electrical characteristics
1
Data – F1 in / F1 out Amplitude: 3 V
pp
Impedance: 75Ω, unsym.
Range: 100 m
2
GND
Socket: Clock in / Clock Out (BNC)
Connect. Signal Electrical characteristics
1
Clock – T3 in / T3 out Amplitude: 0.5 to 1.9 V
0p
(input)
1.5 V
0p
(output)
Impedance: 75Ω, unsym.
Range: 100 m
2
GND
Socket: Data (Lemosa)
Connect. Signal Electrical characteristics
1
RXD a Data in a Amplitude: 3 V
pp
as per G.703
Impedance: 120Ω, sym.
Range: 100 m
2
not connected
3
RXD b Data in b
4
TXD a Data out a
5
not connected
6
TXD b Data out b
Socket: Clock (Lemosa)
Connect. Signal Electrical characteristics
1
RXCLK a Clock in a Amplitude: 1.5 V
0p
as per G.703
Impedance: 120Ω, sym.
Range: 100 m
2
not connected
3
RXCLK b Clock in b
4
TXCLK a Clock out a
5
not connected
6
TXCLK b Clock out b
Page 24
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CHAPTER 1: SYSTEM DESCRIPTION
1.5.3.4 T1 interfaces
Symmetrical interface
Socket: Data (Lemosa)
Connect. Signal Electrical characteristics
1
RXD a Data in a As per G.703
2
not connected
3
RXD b Data in b
4
TXD a Da ta out a
5
not connected
6
TXD b Da ta out b
Socket: Clock (Lemosa)
Connect. Signal Electrical characteristics
1
RXCLK a Clock in a As per G.703
2
not connected
3
RXCLK b Clock in b
4
TXCLK a Clock out a
5
not connected
6
TXCLK b Clock out b
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CHAPTER 1: SYSTEM DESCRIPTION
1.5.4 Data interfaces
The TITAN videocodec provides the following three data interfaces:
– HSD for High Speed Data at 64 kbit/s
– LSD for Low Speed Data between 300 and 38400 Baud.
– TS16 (Timeslot 16) for dialling information in E1 networks
1.5.4.1 HSD interface
The HSD channel is intended for the transmission of high-speed data or picture data of the JPEG graphics codec. The data rate is 64 kbit/s.
1.5.4.2 LSD interface
The LSD channel is used for the tran smi ssion of lo w-spe ed data or for the r emote control / diagnosis of the codec at the far (remote) end with the H.221
inband signalling protocol. T he remote control of the far end codec is only p ossible between TITAN videocodecs. A software u pdat e of the far en d ( Remote
Software Update) during transmission has also been implemented.
Socket: HSD (SUB-D 15pole)
Connect. Signal Electrical characteristics
1
SHIELD Shield Type: DCE
Level: V.11, symmetrical
Data rate: 64 kbit/s
Range: 100 m
2
Ta Transmit a
3
Ca Controla
4
R a Receive a
5
I a Indicate a
6
S a Signal Element Timing a
7
B a Byte Timing a
8
GND Ground
9
Tb Transmitb
10
Cb Controlb
11
R b Receive b
12
I b Indicate b
13
S b Signal Element Timing b
14
B b Byte Timing b
15
not connected
Socket: LSD (SUB-D 9pole)
Connect. Signal Electrical characteristics
1
CD Carrier Detect Type: DCE
Level: V.24
Data rate: 300 to 38400Baud
Range: max. 15 m
Protocol: 1 start bit
7 or 8 data b its
a
1 parity bit
b
1 stop bit
a Factory setting: 8 bits
b Following parities can be set: none, even, odd. Factory setting: none (no parity)
2
RxD Receive D at a
3
TxD Transmit Data
4
DTR Data Terminal Ready
5
GND Ground
6
DSR Data Set Ready
7
RTS Request To Send
8
CTS Clear to Send
9
RI Ring Indication
Page 26
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CHAPTER 1: SYSTEM DESCRIPTION
1.5.4.3 TS16 interface
With this interface, dialling information can be inserted into / read out of any
timeslot (e.g. TS16) of the E1 interface. This enables the setting up of a
2-Mbit/s self-dialling connection with an external dialling unit and the corresponding E1 network ( e.g. Meg anet in Switzerland). T he tran smi ssion rate at
the TS16 data interface is 64 kbit/s.
This interface can be re configu red as an X .21 inter face ( D TE) usi n g an a dapter cable (order number 3361 328252).
Socket: TS16 (SUB-D 15pole)
Connect. Signal Electrical characteristics
1
SHIELD Shield Type: DCE
Level: V.11, symmetrical
Data rate: 64 kbit/s
Range: 100 m
As X.21 interface:
Type: DTE
Level: V.11, symmetrical
Data rate: 5 6/64 kbit/s
Range: 100 m
2
Ta Transmit a
3
Ca Controla
4
Ra Receivea
5
I a Indicate a
6
S a Signal Element Timing a
7
Ba Byte Timinga
8
GND Ground
9
T b Transmit b
10
Cb Controlb
11
Rb Receiveb
12
I b Indicate b
13
S b Signal Element Timing b
14
Bb Byte Timingb
15
not connected
Page 27
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CHAPTER 1: SYSTEM DESCRIPTION
1.5.5 Operator interfaces
The TITAN videocodec can be controlled via the operator interfaces.
1.5.5.1 RS232C/MOUSE interface
This interface is used in three separate applications:
– The graphics cursor of the JPEG graphics codec can be moved with the
PC mouse to point or draw in the graph ics pictu re. The mou se can al so be
used to control the on screen display (see Annexe A3).
– If connected to the serial interface of a PC, the codec can be controlled
with the operator software provided1.
– With the help of an external controller, the remote-control signals can be
converted into commands for the TITAN videocodec.
The data rate can be set to between 300 Baud and 19200 Baud.
1.5.5.2 RS232C interface
The RS-232C interface has the same range of functions as the
RS-232C/MOUSE inte rface. It is not p ossible to conn ect a mou se to thi s interface, however.
1 also possible via modem (see CHAPTER 7).
Plug: RS-232C / MOUSE (SUB-D 9pole)
Connect. Signal Electrical characteristics
1
not connected Type: DTE
Level: V.24
Data rate: 300 to 19200Baud
Range: max. 15 m
Protocol: 1 start bit
7 or 8 data b its
a
1 parity bit
b
1 stop bit
a Factory setting: 8 bits
b Following parities can be set: none, even, odd. Factory setting: none (no parity)
2
RXD Receive Data
3
TXD Transmit Data
4
DTR Data terminal ready
5
GND Ground
6
DSR Data set ready
7
RTS Request to send
8
CTS Clear to send
9
not connected
Plug: RS-232C (SUB-D 9pole)
Connect. Signal Electrical characteristics
1
not connected Type: DTE
Level: V.24
Data rate: 300 to 19200Baud
Range: max. 15 m
Protocol: 1 start bit
7 or 8 data b its
a
1 parity bit
b
1 stop bit
a Factory setting: 8 bits
b Following parities can be set: none, even, odd. Factory setting: none (no parity)
2
RXD Receive Data
3
TXD Transmit Data
4
DTR Data terminal ready
5
GND Ground
6
DSR Data set ready
7
RTS Request to send
8
CTS Clear to send
9
not connected
Page 28
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CHAPTER 1: SYSTEM DESCRIPTION
1.5.5.3 RS485 bus interface
The RS-485 interface is a bus interface to conne ct several codecs in a chain.
This makes it possible to control several codecs from a PC.
1.5.5.4 TTL interface
The operator interfa ce is compa tible with the p arallel inte rface of a PC or printer. A log printer can thus be connected without the need for adaptation.
The interface can also be used to control external equipment. There are 10
outputs, 5 inputs, 8 programmable inputs/outputs, GND and +5V.
Plug: RS-485 (SUB-D 9pole)
Connect. Signal Electrical characteristics
1
SHIELD Type: Bus
Level: V.11, symmetrical
Data rate: 300 to 19200 Baud
Range: 100 m
2
DATA A
3
CONTROL A
4
not connected
5
GND
6
DATA B
7
CONTROL B
8
not connected
9
not connected
Page 29
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CHAPTER 1: SYSTEM DESCRIPTION
One application is the upgrading of an existing videoconference equipment
with the AV T VCD 2M-G codec to the new TITAN videocodec. One of these
inputs/outputs can be use d to start the transmission of a gr aphics picture (see
CHAPTER 6).
Socket: TTL (SUB-D 25pole)
Connect. Signal Electrical characteristics
1
STROBE Out Level: TTL / CMOS
Maximum current: 5 mA
2
DATA 0 Out
3
DATA 1 Out
4
DATA 2 Out
5
DATA 3 Out
6
DATA 4 Out
7
DATA 5 Out
8
DATA 6 Out
9
DATA 7 Out
10
ACK In
11
BUSY In
12
PE In
13
SELECT In
14
FEED XT In / Out
15
ERROR In
16
RESET Out
17
+5V/50 mA Out
18
USER 0 In / Out
19
USER 1 In / Out
20
USER 2 In / Out
21
USER 3 In / Out
22
USER 4 In / Out
23
USER 5 In / Out
24
USER 6 In / Out
25
GND
Note: User 0 to 6 and Feed XT can be switched as either an input or output
Page 30
2–30040 7448 329657 (04.97) PC-SW 4.5
2 PUTTING THE SYSTEM INTO OPERATION
2.1 Mounting the TITAN videocodec
With its dimensions of 439 mm × 133 mm (3 HE) × 395 mm (W × H × D), the
TIT AN can ei th er be op erate d as a table- top devi ce or be inser ted into 19" or
ETSI racks using mounting brakkets.
The dimensions given above are valid for the table-top version with neither
mounting brackets nor feet. If the TITAN videocodec is to be inserted into a
rack, it should be remembered that the bending radius of the cables should
always be greater than the minimum allowed value.
If the TITAN videocodec is installed in a rack, it should also be ensured that
sufficient ventilation is provided. It is recommended that at least 3cm space
is left next to the openings. If it cannot be avoided a maximum of one of the
ventilation holes can be blocked (front or si de) . As a rul e, the ambi ent te mperature should not li e outside the rang e +5°C to +40°C. These limits are of particular importance if the TITAN videocodec is inserted in a rack.
During operation, the humidity must lie between 5% and 85%. Operation of
the TIT A N video codec o utsi de t he abo ve-m entio ned li mit s is not all o wed and
invalidates the warranty (guarantee).
2.2 Connection to the video interfaces
The sockets for the video inputs of the TITAN videocodec can be assigned to
different signals (see SECTION 1.2.3).
All video sockets are BNC sockets and can be connected with commercially
available BNC plugs.
For the pin assignment, please see SECTION 1.5.2.
2.3 Connection to the audio interfaces
Professional XLR sockets have been provided as audio sockets for microphones and line inputs and outputs. Cinch sockets have been provided for the recorder, tel ephone and loudspea ker . Fo r the pi n assignment a nd availab ility of
the interfaces, please see SECTION 1.5.1.
Page 31
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CHAPTER 2: PUTTING THE SYSTEM INTO OPERATION
FIGURE 2.1 REAR VIEW OF THE TITAN VIDEOCODEC (CONNECTORS)
2.4 Connection to the data interfaces
The TITAN videocodec has three different video interfaces. All of these interfaces are DCE interfaces.
For the pin assignment, please see SECTION1.5.4.
2.5 Selection of the network interface
The TITAN videocodec offers the operator a variety of network interfaces.
However, only one interface type can be active at a given time. The network
interface should be selected to meet the particular requirements.
The following is an over view of typical applicat ions fo r the d iffere nt network interfaces of the TITAN system:
Warning
If the E1 or T1 interface is used, the jumpers on the Interface
Unit should be set correctly. The following settings are possible:
- E1 symmetrical
- E1 unsymmetrical (factory setting)
- T1 symmetrical
The corresponding jump er settings are shown on th e Interface
Unit (see FIGURE 2.2).
Before the front panel of the videocodec is removed, the unit
should be disconnected from the mains supply! (See also
SECTION 2.9).
Network interface Application
X.21 Main Data interface n × 64 kbit/s, n = 1 to 30,
Data interface n × 56 kbit/s, n = 1 to 24,
Block swit ching required ,
1 to 6 × X.21 Data interface with 64 kbit/s (or 56 kbit/s) each,
Dialling pr ocedure for term in al adapter and tr ansit time compensation between
the indivi dual channel s
RS449 Data interface n × 64 kbit/s, n = 1 to 30,
Block swit ching required
E1 2-Mbit/s data interface as per G.703, G.704,
Check jumper setting on Interface Unit!
T1 1.544-Mbit/s data interface as per G.703, G.704,
Check jumper setting on Interface Unit!
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Page 32
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CHAPTER 2: PUTTING THE SYSTEM INTO OPERATION
2.6 Connection to the data network
The selected network inter face m ust be co nnect ed to th e tra nsmissi on equipment in accordance with the interface pin assignment (see SECTION 1.5.3).
Several network in terfa ces ca n b e co nnecte d sim ultaneously, but only on e interface can be active at a give n tim e. T he a cti vation of the n etwor k inter faces
is controlled by software.
The X.21 interfaces nos. 4, 5 a nd 6 can be accessed at the T S16 interface and
the RS449 interface using the adapter cables which are included in the delivery.
2.7 Connection to the operator interfaces
Four operator interfaces have been provided for the control of the TITAN videocodec.
The pin assignments are shown in SECTION 1.5.5.
2.8 Connection to the mains voltage
The TIT AN videocodec can be oper ated with an AC voltage (mains) betw een
90 and 253 V without the need for switching. The mains frequency can vary
between 45 Hz and 65 Hz. The housing must be earthed (gr ounded) in accordance with local regul ations. This earthin g is usually reali sed via the protective
conductor (green/yellow) of the mains cable. If the mains cabl e does not have
a protective conductor, however, the device must be earthed vi a the earth ing
bolt (see FIGURE 2.1).
Warning
Use the mains cable provided! Do not use an extensi on cable
without a prote ctive conductor! If in doubt, use ad ditional GND!
2.9 Opening the device
Warning
The mains plug must be r emoved before th e device is opened !
Although a large part of the system configuration can be carried out fro m the
outside using software, it can sometimes become necessary to open the device. T o do this, remov e the four scre ws on the front panel. The pa nel can now
be pulled out by the handles. The keypad/display unit can also be removed.
The individual plug-in units are inserted horizontally and can easily be removed or inserted using the lever provided.
Warning
Dangerously high voltages can still be present on the power
supply even several minutes after it has been disconnected
from the mains. Do not, therefore, touch any component or
soldering point on the power supply!
The equipping of the system is shown in the table in SECTION1.4.
To re-assemble the unit, carry out the above steps in reverse order.
!
!
!
Page 33
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CHAPTER 2: PUTTING THE SYSTEM INTO OPERATION
2.10 Setting the G.703 network interface
The following two modes can be selected for the network interface as per
G.703 (E1):
– E1 interface symmetrical,
– E1 interface unsymmetrical (factory setting), or
– T1 interface symmetrical
Before activation with softw are, each of these modes mu st be set o n the inte rface unit (see FIGURE2.2) by means of jumpers!
It should be ensured that
all jumpers are inserted in the same row.
FIGURE 2.2 POSITION OF THE JUMPERS ON THE INTERFACE UNIT (FACTORY SETTING)
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6 6 U[OOGVTKECN
5;/
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Page 34
2–34040 7448 329657 (04.97) PC-SW 4.5
CHAPTER 2: PUTTING THE SYSTEM INTO OPERATION
2.11 Setting the Audio Line interface
The metal cover must be removed for the setti ng of the jumpers. For the A udio
Line interface, the transformers can be selected with or without centre-point
earthing. The factory setting is OFF (no centre-point GND). The input impedance of the line interface can be set to eithe r LO (6 00 Ω) or HI (20 kΩ). The
factory setting is HI. After the jumpe rs have been se t, the m etal cove r shou ld
be replaced.
FIGURE 2.3 POSITION OF THE JUMPERS ON THE AUDIOCODEC UNIT
2.12 Switching on the system
After all the requir ed interf aces have been con nected, th e system can be switched on. The following message appears in the display:
After some seconds, the main menu appears:
The device is now operational. For the device to operate with echo cancellation, the audio system must be calibrated first before a video transmission is
started. This can be done either with the oper ator panel (se e SECTION2.10)
or, more conveniently, with the PC user interface (see SECTION3.3.5).
176
)0& )0&+0+/2
.1
*+
10
1((
T I T A N --- AVT GmbH
Booting system...
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SYSTEM BOOTED
Page 35
2–35 040 7448 32 9657 ( 04.97) P C-S W 4.5
CHAPTER 2: PUTTING THE SYSTEM INTO OPERATION
2.13 Software installation
The operation of the TIT AN videocodec is possible to a large extent using only
the operator (front) panel. Front panel operation does not provide the user
with all configuration possibilities that are available if a PC is used, however.
It is therefore recom mended that a PC is use d for operation of the codec. This
section (2.13) can be ignored if a PC is not to be used to control TITAN.
2.13.1 Hardware requirements
The PC must fulfil the following minimum requirements:
– IBM PC AT, IBM PS/2 or 100% compatible
– MS-DOS 3.0 or higher
– approx. 600 kByte free conventional memory
– approx. 2MB free hard-disk memory
– IBM VGA graphics board (display adapter) with 640 x 480 pixels
– a free serial interface RS-232
– Microsoft, IBM PS/2 or 100% software-compatible mouse
2.13.2 Connection of the TITAN videocodec to the PC
Connect the PC serial interface to the RS232C interface on the rear panel of
the TIT A N videocodec. The p in assig nment of the poss ible cab les is show n in
FIGURE 2.4.
Configure the serial interface of the TITAN videocodec (RS232C) in accordance with the following parameters. Use the procedure described in
SECTION 4.1.
– Packet format
– 19200 Baud
– 8 data bits
– no parity
The TITAN videocodec can now be controlled from the PC.
Remote operation of the videocodec is described in CHAPTER 7.
Page 36
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CHAPTER 2: PUTTING THE SYSTEM INTO OPERATION
FIGURE 2.4 PIN ASSIGNMENT OF THE CABLE FOR THE PC-TITAN CONNECTION
2.13.3 Installation of the software on the PC
The installation of the software on the hard disk is as follows1:
Now all the files re quire d ar e o n th e ha rd disk an d th e i nsta llation di sk can be
removed from the drive.
2.13.4 Adapting the software to the PC system configuration
Change directory to C:\TIT AN (if you have not already done so) and call up the
display adapter (graphics board) menu with the command
Command Explanation
Place the first disk in the drive of the PC and enter the follo-
wing commands
C:\
Change directory to the position in your directo ry tree that you
want to install the TITAN software, in this case: C:\
md titan
Make a directory with the name TITAN.
cd titan
Change directory to TITAN.
copy a:\*.*
Copy all files on the installation disk in the drive (in this case
drive A:) to the TITAN directory.
Remove the first disk from th e drive and insert the se cond one
copy a:\*.*
Copy all files from this disk to the TITAN directory.
1 Please make a backup copy of both original disks
before
installation
6+6#02%
6+6#02%
RKP KPVGTHCEG
RKP KPVGTHCEG
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CHAPTER 2: PUTTING THE SYSTEM INTO OPERATION
adapter
The following screen appears:
The configuration detected in your system is displayed. If you want the software to be adapted to the configuration shown, confirm with “y” on your keyboard. The adaptation of the software to the installed display adapter is then
carried out and yo u can continu e dire ctl y with th e sel ectio n of t he inte rface . If
the configuration displayed is n ot your system configur ation, press “n” on yo ur
keyboard to obtain the following selection of adapters:
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Select the required adapter from the list and confirm with the Enter key.
The program now en quires what monitor has been connected. If you a re using
a colour monitor, press the letter “c”. If you are using a monochrome monitor
in combination with a colour graphics board, it is possible that some colour
combinations will lead to unreadable menus. In this case ente r “m” to ensur e
that all menus are readable.
The adaptation of the software to your graphics board is now completed.
Note
If the fault message “Can’t find main.uir” or similar appears
when the program is started, then i t is very likely th at the wrong
adapter has been installed.
2.13.5 Selection of the PC interface
To select the PC interface, a param eter i s en tere d a fter the program name TITAN during the calling up of the program1.
TITAN /1
starts the software with the COM1 interface
TITAN /2
starts the software with the COM2 interface
The installation and configuration of the software is now completed.
1 If a parameter is not entered, the COM1 interface is selected by default.
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3 OPERATION WITH A PC
As already stated in SECTION 4.1, it is recommended that the system is controlled with the PC software. At least the configuration should be carried out
with a PC since this is faster and easier than configuration with the operator
panel. The set configurat ion can the n be tra nsferred to the syste m and sto red
there. Operation with th e oper ator pan el (keyp ad an d displa y) i s desc ribed in
CHAPTER 4. It is also possible to operate the TITAN system using an onscreen display. This option is described in Annexe A12.
The installation of the PC software is described in SECTION 2.13.
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CHAPTER 3: OPERATION WITH A PC
3.1 Starting the software
T o cal l up the program, ch ange director y to the TITAN directory (
cd titan
) and
enter
”titan”
1
.
The following menu appears on the screen:
Note
If the fault message “Can’t find main.uir” or similar appears
when the program is started, then it is very likely that the wrong
display adapter has been installed
(see SECTION 2.13.4)
1 If the PC used has mor e than one ser ial in terf ace, o ne must be sel ecte d using a parame ter wh en the progra m is ca lled
up (see SECTION 1.4). If no parameter is entered, the interface set in the program as active is used (factory setting
is COM 1). The menu i tem COM PORT in t he M AI N pull-down men u can be used to change this setting (even when
the prog r am is running)
/GPW DCT YK VJ OG P W K VGOU 5VCVWU NKPG YKVJ EWTTGPVN[ CEVKXG OGPW
.KPG HQT UVCVWU KPHQTOCVKQP CPF VKOG
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3.2 Operating elements on the screen
The uppermost line on the screen is the menu bar. A menu can be called up
by clicking the correspond ing word in th e menu bar . Th e exclamation mark behind the menu word indicates that an action is carried out directly if the word
is clicked. If menu words without exclamation marks are clicked, a pull-down
menu is displayed in which a selection must be made (e.g. MAIN pull-down
menu).
The second line of the screen is the menu status line. This indicates which
menu is currently active.
The lowest line displays the current time as well as codec status information
such as existing connections, active loops or alarm messages. If REMOTE
(red and flashing) is displayed in the lowest line, this means that remote control via the LSD chann el (see CHA PTER7) is activated. LOCAL m eans that it
is deactivated. The status of the connection between PC and videocodec is
displayed to the left of the time. PC-CONN mean s that the connecti on is in order. PC-DROP means that there is no connection.
CLOSE – Closing the current window
Every window contains a CLOSE button. Clicking this button closes the respective window and return s you to the pr evi ous menu . Th e CLOS E function
is also activated by pressing the Escape key.
3.2.1 Graphical user interface operation with a mouse
The graphical user interface has been designed such that all functions can be
executed with the mouse. The keyboard is needed only for text entry (e.g. a
file name when a new configuration is set up or a call number):
– T o select an item in the menu bar , click the cor responding word. To do this,
move the mouse pointer to the word and press the left mouse key for a
short time (“click”). The word is then displayed briefly with a red background and the function is execute d. This way you can, for example, clear
down an existing connection (by clicking DISC!), or call up the AUDIO panel (by clicking AUDIO!) to set audio parameters.
If words that have no exclamatio n mar ks are clicked , a pul l-d own me nu is
displayed. This is a window i n which there are se veral o ptions. T he p rocedure for mouse op eration is the same here. Simpl y place the m ouse cursor
above the require d word or fie ld and pr ess the left mo use key. The function
is then executed.
– Similarly, to activate a function, click the corresponding function key (e.g.
CLOSE).
– T o change th e setting of a s witch displayed on th e screen, place the c ursor
at the position where you want the switch to be set and press the left
mouse key.
– To enter a text (see above) place the click the entry field directly. The text
can now be entered.
%.15'
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3.2.2 Graphical user interface operation without a mouse
If the PC system does not have a mouse, trackball or similar, the graphical
user interface can be ope rate d with the keyb oard . The foll owing ru les shoul d
be observed:
– To select a functio n ke y or swi tch in a pan el, p ress the Tab key once or se-
veral times. The selection moves forwards(Tab) or backwa rds (Shift+Tab).
The selected element is shown either with a coloured background (e.g.
name of the switch) or it is shown with an additional border (e.g function
key).
In some levels, switche s and function keys ar e grouped toge ther . If the current selection is within such a gr oup, The ta b key only allows the selection
of elements within this group. To switch to another group of elements,
press Alt+Tab.
– T o chang e a switch setting , first select th e switch with Tab or Shift+T ab a nd
then enter the first letter of the required switch setting. If two switch setti ngs
have the same first le tter, the selection always moves to the next possible
setting with that first letter.
Alternatively, the (selected) switch can be moved with the cursor keys1.
– T o execu te a functio n with a function ke y (e.g. CLOSE ), select this func tion
key using Tab or Shift+Tab and then press the Return key on the keyboard2.
– T o select a menu i tem in the m enu bar , hold down the Alt k ey and press th e
first letter of the menu item, e.g “Alt+d” for Disc(onnect). The corresponding menu item is highlighted and the function is carried out.
Since some menu items have the same first letter (e.g. DISC and DATA),
this method cannot always be used. In such cases:
– Press Alt+m. The MAIN pull-down menu is called up.
– Using the cursor keys, move to the menu item that you want to select
and then press the Return key.
– If you do not want to execute a function, press the Escape key. This will
return you to the initial state.
– To select a menu item in a pull-down menu, you can use the cursor keys
or enter the first letter of the required word. Confirm the entry with Return.
1 If some of the switch settings have been locked, t he cursor keys cannot be used t o select t h e setting s. Press the firs t
letter of the next (unlocked) switch setting to jump the locked setting.
2 The CLOSE function can be activated with the Escape key.
Tab
Shift+Tab
Alt+Tab
Alt+<Letter>
<Letter>
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3.3 Description of the PC graphical user interface
3.3.1 Main menu bar
The following functions are contained in the main menu bar:
The organisation of this chapter corresponds with the above arrangement in
the menu bar. The overview shown here also contains page references for
each of the menu items shown. The required function can thus be easily
found. If there should be any uncl ear poi nts during the oper ation of th e TITAN
system, the index at the end of the manual can also be very helpful.
Help
functions
for the
TITAN
Videocodec
(not yet
available)
Initiation of tests
(see page 3-95)
Alarm message inquiry
Entry of commands
Loading of codec software
Remote co nt r ol via LSD chan.
Interface configuration
(see page 3-90ff)
Loading/storing/deleting of configs. on PC
Saving the set configuration in unit
Saving default settings for system booting
Loading of factory settings
(see page 3-86ff.)
Selection and config uration of network interface
Setting the transmission data rate
(see page 3-82ff.)
Setting of the HSD channel (High Speed Data)
Setting of the LSD channel (Low Speed Data)
Activation of the TS16 interface
(see page 3-80ff)
Setting the motion-video codec
Setting the graphics codec
Operating the graphics codec
Setting the video interfaces (incl. PIP)
(see page 3-68ff)
Selecting the audio quality
Selecting the audio interfaces
Switchin g t he echo cancel lation on or off
Calibrating the echo cancellation
Setting levels
(See page 3-58ff)
Clearing down the connection (see page 3-57)
Setting up modem connections, dialled connections (ISDN) and fixed connections (e.g. E1)
Manual setting up of calls (direct entry of calling numbers)
Storing ne w calling numb er s
Modifying/deleting stored calling numbers
Searching for a name or calling number
Assigning the stored calling number to a specific equipment configuration
(see page 3-50ff.)
Display of the main menu (Main Panel)
Display of the Status Panel with all important main parameter settings
Selecting the PC interface – Com Port
Displaying the software version
Exiting the program – QUIT
(see page 3-45ff.)
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3.3.2 The MAIN pull-down menu
The MAIN pull-down menu is obtained by placing the cursor on MAIN in the
menu bar and then pressing and holding down the mouse key. To select one
of the menu items, m ove the cursor to the i tem you requi re (it is displayed w ith
a red background) and then release the mouse key.
The individual fu ncti ons ar e describ ed in t he following sections i n th e o rde r in
which they appear in the pull-down menu
3.3.2.1 MAIN Panel
If you click the “MAIN PANEL” menu item in the MAIN pull-down menu, the
Main Panel appe ars. It conta ins info rmation on the curre ntly set network i nterface and, if a connection exists, on the received data.
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The following are displayed:
– The active network interface is shown with a red background.
–
X.21 INTERFACES
→ ISDN connection
the following are displayed:
– the name of the remote end with which a connection exists
– the calling numbers
– the status of the X.21 interfaces.
–
G.703 INTERFACE
→ E1 (or T1) connections
the following are displayed:
– SIGNAL: connection exists
– SYNC: system is synchronised
– LOCAL N-ALARM: local deferred maintenance (non-urgent) alarm
– LOCAL D-ALARM: local prompt maintenance (urgent) alarm
– REMOTE N-ALARM: deferred alarm on the remote side
– REMOTE D-ALARM: prompt alarm on the remote side
– AIS: AIS signal received.
–
RS449 INTERFACE/1*X.21
→ 1×X.21 or RS449 network interface
the following is displayed:
– CLOCK: the clock frequency used.
–
RECEIVING
→ detected signals in received data stream
the following are displayed:
– VIDEO DATA → video signal present
– AUDIO DATA → audio signal present
–LSDDATA → LSD data channel present
–HSDDATA → HSD data channel present.
ADD / DROP CHANNEL
The two keys ADD / DROP CHANNEL can be used (by the caller) during an
ISDN connection to set up additional B channels or disconnect unneeded B
channels:
– In order to b e ab le to set up an additional B chann el, a fur ther cal l numb er
(to which a connection does not yet exist) must be entered in the number
block. Starting from the top of the list, the next available number is called.
– For disconnection, the last connected B channel in the list is always dis-
connected first, i.e. the B channel located lowest down in the list.
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CHAPTER 3: OPERATION WITH A PC
3.3.2.2 STATUS Panel
Click “STATUS PANEL” in the MAIN pull-down menu to obtain the Status Panel. This displays the most import ant p aram eter settings in the system and is
a quick overview of the system status.
The following are displayed:
– LINE SETTINGS
– Selected network interface
– Line mode
– Selected clock source
– AUDIO SETTINGS
– Echo cancellation
– Audio input
– Audio outputs
– VIDEO SETTINGS
– Resolution and frame rate1 of the video picture
– Selected picture content for background and PIP
– Input signal for motion video source and graphics picture
– Output signals at the sockets CVBS1 and CVBS2
–DATA RATES
– Total transmission rate of the current connection (transmit an d receive
direction)
– Data rates of the individual signals
1 not yet available
MDKVU
MDKVU
MDKVU M*\
MDKVU
MDKVU
MDKVU
MDKVU
MDKVU M*\
MDKVU
MDKVU
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3.3.2.3 COM PORT CONFIGURATION Panel
The COM PORT menu item calls up the COM PORT CONFIGURATION panel. The PC serial interface for the control of the codec can be selected here.
This interface is automatically used for the control the next time that the program i s started1.
Note
The settings are saved in the PC only after the SAVE SETTINGS key is clikked.
Under REMARKS, you can enter some information specific to the interface,
such as its use, for example.
The slide switches BAUDRATE and PARITY set the Baud rate and parity of
the connection between PC and TITAN. 19200 Baud / no parity (the default
setting) is recommended.
Warning
Please ensure that the set values corresp ond to the values set
in the TITAN videocodec (see SECTION 4.4).
Use the MODEM DIALLING switch to enable or disable modem dialling (for
remote control). Remote control via modem is described in CHAPTER7.
1 Independent of this setting, the program can be started with
titan /n
for the interface n.
!
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3.3.2.4 ABOUT
If the menu i tem AB OUT is se l ected, info rma tion i s p rovide d o n the har dware
and software version and the curr ent ser vi ce hot-li ne telepho ne num ber. Exit
this menu by clicking the CLOSE key.
3.3.2.5 Exiting the program – QUIT
To exit the program, click “QUIT ” in th e M A IN pu ll-down menu. This sh oul d always be done b efore the P C is switched of f, si nce files are ope n while the pr ogram is running.
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3.3.3 CALL Panel
From the CALL panel, all function s can be activated that are relate d to the setting up of dialled connections. This panel can be activate d o nl y if th e ne twork
interface is set to 1..6∗ X.21 (see SE CTION 3.3.8.1), since only this interface
supports dialled ISDN connection s. If another net work inter face has been selected, the connection is set up if CALL is clicked.
Note
This panel can be also be activated if there is no connection
between TITAN and PC (PC-DROP is displayed at lower ri ght
of the screen). The TITAN videocodec can be controlled via
modems from a PC at a remote loca tion. The se tting up of the
required connection between PC and TITAN is done with the
CALL panel. For modem dialling, the letter “M” must be placed
in front the number.
Remote control via modem and the necessary connections
and settings are described in CHAPTER 7.
The functional keys in the right part of the screen have the foll owing meanings:
3.3.3.1 CALL
The CALL key is used to set up a call. The calling number and the unit configuration of the selected calling number block are used. This should be marked
in the selection list with the mouse. After t he CALL key has been clicked , the
software returns to the Main Panel. The setting up of the call can be monitored
in the Main Panel.
Warning
Only as many B channels are set up as are required to obtain
the data rate set in the LINE panel.
%#..
!
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CHAPTER 3: OPERATION WITH A PC
3.3.3.2 MANUAL CALL
The MANUAL CALL key is for the setting up of calls without the use of store d
numbers. The currently set unit configuration is used (see SECTION3.3.9).
After this key has been clicke d, the fo llow ing windo w appea rs for the en try of
the required calling numbers.
Note
If there should be problems during connection set up with codecs other than TITAN, “pp” must be enter ed in fron t of every
number from “NUMBER 2” onwards.
The AREA CODE field is used to enter the prefix number (which can include
a country code if necessary). The contents of this field are automatically placed in front o f th e in divi dual num ber s du ring call se t u p. T he indivi du al ca llin g
numbers are entered in the NUMBER 1 to NUMBER 6 fields one after the
other , depending on th e connected termin al adapter . T he assignment is as follows:
Note
Enter all initial digits that the calling numb ers have in common
in the AREA CODE field. This saves you hav ing to enter them
each time.
TABLE 3.1 Assignment of calling numbers to the X.21 interfaces
Calling number X.21 socket on the TITAN backplane
NUMBER 1 X.21/Main
NUMBER 2 X.21/No 2
NUMBER 3 X.21/No 3
NUMBER 4 TS16 interface as X.21
NUMBER 5 RS449 interface as X.21 (signal designation a)
NUMBER 6 RS449 interface as X.21 (signal designation b)
/#07#. %#..
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By clicking the CALL key you can now start the call set up. Alternatively, you
can abort with CLOSE. The data entered is not stored and is lost if the program is exited.
3.3.3.3 NEW NUMBER
The NEW NUMBER key calls up the NUMBER Panel shown below, in which
a new calling number block (i ncl. a name for a unit c onfiguration) can be save d
in a calling number list for later use in the selection list for call set up.
The prefix (including country code, if necessary) is entered into the AREA
CODE field. The number in this field is automatically placed in front of the individual number during call set u p. The individua l calling number s are entered
one after the o ther into the NUMBER 1 to NUMBER 6 fields, depending on the
connected terminal adapter. The assignment is as follows:
Note
Enter all initial digits that the calling numbers have in common
in the AREA CODE field. T his save s you h aving to enter then
each time.
The name of the calling number l ist entry is en tered into the N UMBER NAME
field. This name then becomes part of the selection list and can be clicked to
set up a connection.
TABLE 3.2 Assignment of calling numbers to the X.21 interfaces
Calling number X.21 socket on the TITAN backplane
NUMBER 1 X.21/Main
NUMBER 2 X.21/No 2
NUMBER 3 X.21/No 3
NUMBER 4 TS16 interface as X.21
NUMBER 5 RS449 interface as X.21 (signal designation a)
NUMBER 6 RS449 interface as X.21 (signal designation b)
0'9 07/$'4
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CHAPTER 3: OPERATION WITH A PC
The SELECT CONFIGURATION key is used to assign a (previously stored)
unit configuration to a calling number block. This has the advantage that for a
specific partner, the correct interface, the correct positioning of the PIP, etc.
are automatically selected, obviati ng the need to repe at these setting s every
time this partner is called. If the SELECT CONFIGURA TION key is clicked, the
dialogue window shown below appears:
In the Dirs/Files sele ction wind ow, click the name of the required unit config uration. Confirm with Select1.
Note
It must be ensured that the confi guration file i s valid for a later
calling up of the entry . F or this reason, the directory from which
the program was called is the only allowable directory for the
storing of configuration files.
If you do not want to load a con figuration, you can abo rt the entry with Cancel,
which returns you the NUMBE R Panel, where you can save the number block
with the SAVE NUMBER key. The CLOSE key terminates the entry and the
CALL-Panel is displayed.
Warning
CLOSE does
not
store the entered data. Store the configuration with SAVE NUM BER, before you exit the NUMBER Panel!
Always exit the program with QUIT before you switch off the
PC, in order to close the calling number fil e correctly. If this is
not done, it is possible that the stored calling numbers can no
longer be read in.
1 Alternatively, the entry can be selected by double-click (pressing the left mouse key rapidly twice in succession)
!
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3.3.3.4 EDIT NUMBER
This key calls up the window to modify stored calling numbers. From the selection list in the CALL panel, sel ect the number to be mo dified with the mou se
and then click the EDIT NUMBER key. The NUMBER panel appears and you
can edit all the entries here; the calling numbers of a communication partner
whose numbers have changed, for example. Save the changes by clicking
SAVE NUMBER and then click CLOSE to exit this level.
3.3.3.5 ERASE NUMBER
The ERASE NUMBER key i s used to de lete an entry in the calling n umber list.
This is done by marking the entry with the mouse in the selection field and
then clicking the E RASE NUMBER ke y . The se lected num ber block is then deleted.
3.3.3.6 STORE ON BOARD
The STORE ON BOARD key can be used to store up to 72 calling numbers
in the codec. Every calling number can have one of ten possible configurations assigned to it (SECTION 3.3.9.4). The number of the memory location
can be selected either with the scrol lbars or with the menu that app ears when
the left mouse key is held down with the cursor positioned in the di splay field
for the memory loca tion. Norma lly, it is not required to store a specific co nfiguration with the number, so that NONE is usually displayed in the field for the
configuration name.
'&+6 07/$'4
'4#5' 07/$'4
5614' 10 $1#4&
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CHAPTER 3: OPERATION WITH A PC
3.3.3.7 ST ATION NUMBERS
This key opens a men u in wh ich your
own
station numbers must be e nter ed.
This information is required by caller s attempting to set up a call to your TIT A N
system using the ISO/IEC CD 13871 standard (this standard is described in
more detail in Annexe A13).
Press the SAVE NUMBERS key to save the entered numbers in the codec
and return to the CALL panel or press the CANCE L key to discard the entries
(changes) and return to the CALL Panel.
Depending on th e numbe r of B chann els (data rate) requi red by the caller, the
call numbers No. 2 to No. 6 are sent to the calling equipment to enable it to
set up the remaining connections.
The MAIN No. entry contains at most the last seven 7 digits of the first channel’s call number (this number must be known t o the cal ler, since it is used to
set up the initial channel). This entry serves only to complete the set of your
own call numbers.
ISO/IEC CD 13871 supports the transm ission of call n umbers with a length of
up to seven digits. This of course means that your own call numbers should
differ within the last seven digits only. The caller’s equipment then simply replaces the last digits of the call number of the ini tial channel with th e digits provided from your TITAN system and so generates the remaining call numbers.
Example (see above figure): Line 1: 0049 911 526 1234
Line 2: 0049 911 526 1256
Line 3: 0049 911 526 1278
MAIN No.: 34
No.2: 34
No.3: 56
No.4: 56
No.5: 78
No.6: 78
56#6+10 07/$'45
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3.3.3.8 SEARCH NAME
The SEARCH NAME function offers the possibility of searching for a specific
name. This is pa rti cular ly use ful i f the nu mber o f na mes i n t he call ing numb er
list is very large. Click the SEARCH NAME key to open an entry window in
which the text to be sear ched for ca n be ente red. Confir m your en try with OK.
In the selection list, the horizon tal bar is place d on the first entr y that contains
the search text. If the search text is not found, a fault message appears.
3.3.3.9 SEARCH NUMBER
The SEARCH NUMBER function is identical with the SEARCH NAME
function (see above) except that it offers the possibility to search for a calling
number.
3.3.3.10 SEARCH NEX T
If several entries contain the search text, you ca n use the SEARCH NEXT key
to display the next number block that contains the search text. If SEARCH
NEXT is activated, the last search com mand is repea ted (eithe r Search Name
or Search Number).
3.3.3.11 GLOBAL CALL
If DISTRIBUTION is selected as network interface in the LINE panel (see
SECTION 3.3.8.1), a different panel appears from the usual one when the
CALL! is clicked (see following figure). The GLOBAL CALL key can then be
used to simultaneously call more than one destination with two B-channels
each.
All partner stations then receive the same transmitted audio and video data.
The SELECT key is used to select the partner stations.
Clicking a PA R TNER button activates the CALL panel. SELE CT can then be
used to assign the PARTNER button to a specific entry in the calling number
list. INACTIVE can be used to deactivate the assignment.
5'#4%* 0#/'
5'#4%* 07/$'4
5'#4%* 0':6
).1$#. %#..
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3.3.4 DISC(onnect)
Clicking DISC! in the menu bar disconnects any existing connections.
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3.3.5 AUDIO Panel
The AUDIO panel co ntrols all fu nctions related t o audio such as level settings,
interface selection an d so on . T he indi vidu al ele ment s an d their functions a re
described in detail in the following.
3.3.5.1 QUALITY: Selecting the audio transmission standard
With the QUALITY slide selector you can choose the algorithm for the audio
encoding. The modes and bandwidths shown below can be selected
Note
The setting applies to the t ransm it signa l , i.e. th e au dio si gna l
that the remote end receives. To improve the quality of the signal received locally , the remote end must change t he settings
in the AUDIO panel.
The settings can be made independently for each direction.
Setting Meaning
A-LAW 56 kbit/s ITU-T G.711 with a bandwidth of 3.1 kHz and a transmission rate of 56 kbit/s
using the a-Law characteristic for Europe.
U-LAW 56 kbit/s ITU-T G.711 with a bandwidth of 3.1 kHz and a transmission rate of 56 kbit/s
using the µ-Law characteristic for North America and Asia
G.722 M2 56 kbit/s ITU-T G.722 – Mode 2 – with a bandwidth of 7 kHz and a transmission rate of
56 kbit/s.
G.722 M3 48 kbit/s ITU-T G.722 – Mode 3 – with a bandwidth of 7 kHz and a transmission rate of
48 kbit/s.
G.728/GSM
16 kbit/s
a
a For the old version of the int erface unit ( ID no. 229500), GSM 16 kbit/s is display ed here.
This is a mo de that can only be used for t r ansmission between Phil ip s equipmen t. This
mode transmits with a bandwidth of 3.1 kHz and a transmission rate of 16kbit/s.
ITU-T G.728 with a bandwidth of 3.1 kHz and a transmission rate of 16 kbit/s.
In a connect ion wi th a codec equip ped wit h an old i nterf ace un it (ID no . 22950 0)
the GSM mode is automatically used (see table footnote).
AUDIO OFF In this setting, no data rate is reserved for the audio signal
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To make a selection, move the slide selector on the screen (by pressing and
holding down the left mouse key with the cursor placed ab ove the selector and
then moving the mouse ). The mod e tha t i s se t can only b e use d i f t he fa r e nd
(partner’s) equipment supports the same mode. If this is not the case, the
equipments “agre e” to comm unicat e w ith ea ch othe r i n a mode that both su pport (capability exchange).
3.3.5.2 PRIVACY: Muting the audio inputs
The PRIV ACY function enables the muting of the audio sources. This way , the
videoconference partner at the remote end does not hear what is being said
locally.
3.3.5.3 Forced synchronisation between sound and picture – LIP-SYNC
If this switch is set to ON, the aud io signal is delayed un til there is synchronism
between picture and sound. If you want to hear the audio signal as soon as
possible, set LIP-SYNC to off.
3.3.5.4 AUDIO SOURCE: Selecting the audio source
Five different audio sources can be selected:
Phantom feeding can be used for the microphones.
3.3.5.5 LINE OUT, SPEAKER: Selecting the audio output
Depending on availability you can switch both audio outputs (LINE OUT,
SPEAKER) on and off individually. To do this simply place the switch
to the position required. Both outputs can be active at the same time.
Setting Meaning
OFF The sound from the selected audio source is transmitted.
ON The selected audio sources are muted
MUSIC The selected audio sources are muted. Instead, music is transmitted to the re-
mote end.
Setting Meaning
MIC 1 Uses only microphone 1 as source for the audio transmission
MIC 2 Uses only microphone 2 as source for the audio transmission
MIC 1+2 Mixes the microphone channels 1 & 2 for audio transmission
LINE Uses the line int er f ace as source fo r th e audio transmission
OFF Switches the audio transm ission off
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3.3.5.6 RECORDER: Interface for a recorder
The recorder interface is intended for both recording and playback. The following modes can be selected with the slide selector:
3.3.5.7 Phantom feeding of the active microphones – PHANTOM POWER
This switch is used to switch the phantom feeding of the active microphones
either on or off.
3.3.5.8 TELEPHONE: Interface for external telephone hybrid
The TELEPHONE inte rface is provi ded for th e conne ction of a n exter nal telephone hybrid. This allows a person to participate in a videoconference via telephone. The person using the telephone can be heard by both videoconference partners. Both videoco nfer ence p artne rs can also be he ard by t he telephone subscriber. With the TELEPHONE slide selecto r, this interface can be
switched on or off. If the interface is not being used, the switch should be set
to OFF to prevent spurious noise from being received from the interface.
3.3.5.9 ECHO COMPENSATION: Switching the echo cancellation on/off
The echo canceller integrated into the TITAN videocodec can be switched on
or off with this switch. If the codec is connected to an external audio system
with its own echo compensation, this switch can be used to switch off the internal echo compensation.
The echo canceller can only switched on after the equipment has been calibrated for the current set up (audio sources and outputs).
Setting Meaning
OFF Bo th i npu t an d outp ut a re s wit che d of f. Thi s sett i ng is rec omme nded if no vi deo
recorder is connected.
PLAY The sound fro m both th e n ear end ( loca l) and th e fa r en d (p art ner) is mixe d a nd
provided for recording. The playback sound of the recorder can be heard by
both videoconference participants
a
.
a Since most video recorders feed back the audio signal during recording, this setting can
lead to echoes during recording. For recording, therefore, set the switch to RECORD.
RECORD This mode is intended for recording only. The playback sound of the recorder is
not trans mi t t ed. This prevents echo es in the audi o system due to sound tha t i s
fed back from the video recorder during recording.
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3.3.5.10 Level setting of the audio inputs and outputs
Levels can be set for the activated audio inputs and outputs. The cur rently set
level is displayed in th e ver tical field i n the form of a bar . Th e sma ll horizo ntal
line to the left of each level display indicates the defau lt level (factory settings;
for values, see SECTION 1.5.1). The level ranges are shown in TABLE 3.3
TABLE3.3 LEVEL RANGES OF THE AUDIO AMPLIFIER
Interfac e Level range
MIC1, MIC2 0 to 46 dB
LINE IN, TEL IN, REC IN 0 to 22 dB
Outputs 0 to 94 dB
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3.3.5.11 Automatic calibration of the echo canceller - CALIBRATE
Note
A calibration is always necessary
- if the extern al audio equi pment settin gs are changed (e.g. volume),
- if the position or direction of the loudspeakers or
microphones is changed considerably, or
- after the first installation.
The CALIBRATE key initiates the calibration routine for the echo canceller
(compensator). The levels of the audio inputs and outputs are set and the
echo cancellation adapted to the acousti c ch ara cteristics o f the r oom . A fter a
calibration, the levels shou ld be changed only in the vi deocodec (no t in the external audio system). This ensures that the echo cancellation continues to
function correctly eve n after a level cha nge. The calibr ation is menu-contr olled
and consists of several steps. The menus always contain short instructions.
First, make sure that the correct audio inputs and outputs are active. Then
click CALIBRATE. The following screen appears:
The SIGNAL switch to select the calibration procedure to be used:
– exact calibration with “pink” noise wi th a sound pre ssure level of 70 dB(A)
at the seating position of every conference participant (at ear level). For
this procedure, a sound level meter and a calibrated sound source (at least
85 dB(A) at a distance of 150 mm) are required (SECTION 3.3.5.11.2).
– Calibration without external measu ring equipment using a music signal set
to a suitable volume level (SECTION 3.3.5.11.1).
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3.3.5.11.1 Calibration with music signal
Ensure that all microphones and loudspeakers to be used in the video transmission are positioned correctly.
With the volume control o n the screen and/or the audio system, set the volum e
to a level such that the music can be heard clearly (not too quiet).
Note
If nothing can be he ard , check the setting s of the switches for
the outputs in the audio panel The set level is always related
to all outputs that have been switched on.
Click the LEVEL OUT OK key. The window to set the microphone type is now
displayed.
In the “SELECTED MI CRO PHONE :” fiel d (lo wer ri g ht par t of th e scre en) , the
currently set m icrophone is di splayed. I f a dif fe rent microph one i s being used,
click the PREFERRED MICROPHONE key. A window appears for the selection of the microphone.
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Select the microphone being us ed from the list by cli cking the name and then
the SELECT key
1
If the microphone that is be ing used is not in the l ist, exit the selection wi ndow
with the CLOSE key and click the UNKNOWN MICROPHONE key
The window displays the message that the calibration will be carried out on
the basis of the set ou tput level only . Click SELECT to activate the U NKNOWN
MICROPHONE function. The wi ndow to set the m icrophone type is d isplayed
on the screen. The microphone type is UNKNOWN.
The calibration of the echo cancellati on can now be started. Click START CALIBRATION, and wait until “Calibration ended” appears in the status line.
Warning
It is very important t hat the room i s quiet during the calibration
(until the “Calibration ended” message appears).
The calibration of the echo cancellation is now completed. The levels set during the calibration are displayed in the Audio panel.
Warning
If you want to ch ange the level settings after you h ave ca l ibrated the system, you should do so only with the controls provided in the PC user inter face ( or t he op era tor panel). These level settings are then automatically taken into account by the
echo canceller.
Do
not
change the settings of the external audio system!
1 The name can also be selected by double-cl icking.
!
!
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3.3.5.11.2 Exact calibration with “pink” noise
Ensure that all microphones and loudspeakers to be used during the video
transmission have been positioned correctly.
With the volume control on the screen and/or the audio system, set the aud io
volume so that there is 70 dB(A)1 of acoustic sound pressure at ear level of
every conference participant.
Note
If nothing can be heard, check the switch settings in the Audio
panel. The set level always refers to all outputs tha t have been
switched on.
Click the LEVEL OUT OK key. The window to set the microphone type is now
displayed.
1 If an external audio system is not being used, the audio level should be set such that the average level for all confe-
rence participants is app r oximately 70dB(A).
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In the “SELECTED MICROPHONE:” field i n the low e r r ight o f the screen , the
currently set microphone is displayed. If a differe nt microphone is being used,
click the PREFERRED MICROPHONE key. A window appears for the selection of the microphone.
Select the microphone being us ed from the list by cli cking the name and then
the SELECT key1.
If the microphone being use d is not listed, exit the selecti on window by clicking
CLOSE.
MICROPHONE MEASUREMENT
2
Generally , thi s procedu re is on ly required i f the micr ophone bein g used is
not
in the list. For microphones in the list, the correct input levels have already
been determined and are set automatically.
The correct measurement of the microphone gain ensures optimal echo cancellation.
1 The name can also be selected by double-cl icking.
2 If there is no cal ib rat ed sound s our ce a va ila ble , thi s poi nt ca n be le ft out . S et th e mi cro phone ty pe t o UNKNO WN ( see
SECTION3.3.5.11.1). The input level is then set during calibration using feedback.
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T o mea sure the mi crophone, click MICR OPHONE MEAS UREMENT. The window for the setting of the input level is displayed.
Place a calibrated sound source 85 dB(A) in the position of a virtual conference participant (300mm behind the conference table, height of 1100 mm).
Increase (or decrease) the input leve l of the TIT AN vi deocodec using th e slide
selector and/or the audio system, until the measured signal level is approx.
–13 dBm0 (see display in lower right part of screen).
Confirm the settin g by cl icking LEVE L I N OK . T he micro phon e ha s no w been
measured. The window to set the microphone type now appears.
“MEASURED” is now displayed as the microphone type.
The calibration of the echo cancell at ion ca n now be started. Click th e S TART
CALIBRATION key, and wait until “Calibration ended” appears in the status
line.
Warning
It is very important that it is quiet in the room during the calibration (until the “Calibration ended” message appears).
The calibration of the echo cancellation is now completed. The levels set during the calibration for the active levels are displayed in the Audio panel.
Warning
If you want to chan ge t he le vel settings after you have cal ibr ated the system, you should do so only with the controls provided in the PC user interface (or with the operator panel).
These level settings are then automatica lly taken into account
by the echo canceller.
Do
not
change the settings of the external audio system!
!
!
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3.3.6 VIDEO Panel
The motion video codec, the PIP function, the graphics codec and the video
interfaces can be set, configured and operated from the VIDEO panel.
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3.3.6.1 Motion video codec
3.3.6.1.1 PICTURE IN PICTURE
Clicking he PICTURE IN PICTURE key calls up the window to set the PIP. The
PIP is displayed on the monitor that has been selected for the motion video
codec. The possible settings are explained below.
PIP SIZE
Either TINY, SMALL or LARGE can be selected. TINY occupies abou t a 3 6th
of the total pictu re are a, S MALL occu pies a ni nt h of the tota l pi ctu re area and
LARGE a fourth of the area.
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PIP POSITION
This switch controls the position of the PIP. The possible positions are shown
below:
TABLE 3.4 SELECTION POSSIBILITIES FOR PIP AND BACKGROUND PICTURE
BACKGROUND
Either the output of the motion video codec (VIDEO) or the output of the graphics codec (see TA BLE 3.4) can be used as the background for the PIP. With
the slide selector, select the video picture for the background. If you require
the output of the motion video codec as preview, you can switch the input signal through to the output. This takes place in the Video Interfaces menu. In
this setting, the motio n vi deo cod ec is b ypassed and therefore no PIP can be
inserted (see TABLE 3.4).
PIP: Selecting the PIP source
The following signals can be used as the PIP source (see also TABLE 3.4):
Click CLOSE to exit the window.
3.3.6.1.2 CAMERA CONTROL
If the CAMERA CONTROL key is pressed, a panel is called up with which a
connected camera can be controlled. The functions provided here can be
used to control a 680D Vidimech or Canon VC-C1 pan + tilt head. Control is
by commands at the RS485 interface.
Background PIP
Received picture
Own (loc al) picture
Received (remote) picture
Graphics picture
Graphics picture
Own picture
Received picture
Graphics picture
Preview –
a
a In t hi s m ode, the moti on video codec is bypassed. A PIP can theref ore not be inse r t ed.
Setting Meaning
INCOMIN G MOTION VIDEO Received motion vi deo from partner (far end)
GRAPHIC Picture of the JPEG Graphics Codec
OUTGOING MOTION VIDEO Motion video codec output (picture from local end)
OFF PIP switched off
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Note
The RS485 interface must be set to the VIDEMECH or CANON mode and a baud rate of 9600 with the INTERFACES
function of the SYSTEM panel (see SECTION 3.3.10.8)
The RS485 interface can also be set using the keypad (see
also Chapter 4, Annexe 4.4)
CAMERA switch:
This switch can b e used to se lect whethe r the contr ol commands should apply
to the local video camera, the local graphics camera or the remote video camera. If REMOTE is selected, the commands are transmitted via H.221 signalling.
The following camera functions can be controlled:
–
ZOOM
: The Minus (–) and Plus (+) keys are used to start a zooming in or
zooming out. The Stop key stops the motion of the zoom lens.
–
FOCUS
: The Minus (–) and Plus (+) keys change the focus. The focus is
changed continuously until Stop is clicked.
–
PAN + TILT
: The group of keys is used to control the pan + tilt head. The
camera is moved according to the keys that are clicked. Click Stop when
the required picture is shown.
–
POSITION
: The position keys are use d to automatically turn the camera to
previously stored pan + ti lt head positions. These fixed posit ions are stored
with the MEMORY keys. The number of available position keys depends
on the mode set in the SYSTEM panel for the RS485 interface (CANON:6,
VIDEMECH:9).
–
MEMORY
: If the pan + tilt head i s in a posit ion that you wo ul d like i t retur n
to later, you can store this position using the MEMORY keys. Simply click
the number that you want t he position to b e stored under . The cu rrently set
camera position is stored under the key number and will be returned to
from any position if the POSITION key with the same number is clikked.
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–
VIDEO/GRAPHIC/REMOTE_VIDEO SOURCE
The three windows are used to select the video or graphics source.
3.3.6.1.3 SHOW VIDEO
The SHOW VIDEO key is used for quick switchover in the PICTURE IN PICTURE function. Clicking this key cor responds to t he settings “BACKGROUND
→ VIDEO” and “PIP → OUTGOING MOTION VIDEO”.
3.3.6.1.4 SEND H.26 1-GRAPHIC
The SEND H.261-GRAPHIC key transmits a still picture in accordance with
the H.261 algorithm. No special graphics codec is required for this function.
3.3.6.1.5 UPDATE
After the reception of an H.261 still pictur e, the UP DA T E key is used to switch
back to the motion-picture mode.
3.3.6.1.6 VIDEO SOURCE
The VIDEO SOURCE field is a list of all connected video sources. Sources
can be selected by clicking. In SECTION 3.3.6.5, it is described how a video
source is configured and activated.
3.3.6.1.7 PICTURE QUALITY
The PICTURE QUALITY shift selector is used to select whether more importance is attached to the sharpness of static picture components or to the
representation of dy namic pictur e cha nges. The re a re 13 int erm edi ate steps.
The closer the selector is placed to MOTION, the better will be the display of
movement. If the selector is placed closer to SHARPNESS, then the resolution of the static picture components is higher.
Note
Both characteristics can only be improved if the transmission
rate is increased.
3.3.6.1.8 MAX FRAME RATE: Setting the frame rate
This slide selector can be used to set the maxi mum frame rate. The frame rate
set here is independent of the frame rate of the connected monitor or TV
(which corresponds to the PAL or NTSC standard).
Depending on the motion content of the picture, the codec dynamically controls the frame rate. The value set with the slide selector is the upper limiting
value.
3.3.6.1.9 PRIVATE: Switching the transmit picture on/off
PRIV ATE switches the transmit picture sent via the motion video co dec to the
partner (far end ) ei ther on or o ff. If the transmit picture is sw itched of f , the p artner receives a still picture (an eye logo).
3.3.6.1.10 MUTE: Switching the received picture on or off
MUTE switches the picture that is received from the far end (via the motion
video codec) either on or off.
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3.3.6.1.11 RESOLUTION
Either QCIF (Quarter CIF) with a resolution of 176 pixe ls per line and 144 lines
or CIF with 352 pixe ls per l ine and 28 8 lines can b e select ed. The setting only
becomes active if it is suppo rted by the far end . If this is not the case, the uni ts
“agree” to comm unicate with a resolution that is supported by both terminals1.
3.3.6.1.12 Flutter compensation - VIDEO RECORDER
If a video recorder is used as signal source instead of a camera, the TITAN
videocodec will not be able to synchronise with the recorder input signal (due
to the speed variation (flutter) of the recorder), unless the VIDEO INPUT
switch is set to RECORDER, in which case the flutter is compensated in the
videocodec.
If a camera is used, this switch should be set to OFF, in order to obtain the
best possible picture quality.
3.3.6.1.13 VIDEO INPUT: Colour or black/white camera
This switch setting is only important for a camera with CVBS (FBAS) output.
If a colour camera is being used, the switch should be set to FORCED COLOUR. This ensures that even for a noisy signal (colour burst not always detected) the colour remains in the picture.
In the AUTODETECT setting, the colour burst is evaluated. If the colour burst
is detected, then colour is sw itched to. If no t, the camer a picture is pro cessed
as a black/white picture.
1 At present, CIF is set as the resolution. If the far end terminal only has QCIF capability, then QCIF is used.
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3.3.6.2 GRAPHICS CODEC
Note
These functions can only be activated if a graphics codec is
part of the system.
3.3.6.2.1 GRAPHIC SOURCE
The GRAPHIC SOURCE field is a list of all connected graphics sources.
Sources can be selected by clicking.
3.3.6.2.2 SINGLE SHOT
Clicking the SINGLE SHOT key generates and transmits a single graphics
picture. The display of the transmitting terminal also displays the (frozen)
transmit picture.
Note
The SINGLE SHOT key should not be clicked repeatedly as
this can lead to decoder errors in the receiver.
SINGLE SHOT should therefore be clic ked again only after the
last transmitted graphics picture has been decoded at the receiver.
3.3.6.2.3 Drawing an overlay picture
The drawing is done with a mouse. All that is required i s a PC mouse connected to the RS232C/ MOUSE socket. It should then be possible to move the cursor in the picture output by the graphics codec. To draw a line, press the left
mouse key and move the cursor. The other cursor is controlled from the far
end. The two overlay pictures are displayed in black and white.
Note
If the overlay picture is to be transmitted, then the LSD mode
has to be set to cursor in the data panel (SECTION 3.3.7.1).
3.3.6.2.4 PREVIEW
The PREVIEW function switches the JPEG graphics codec input through to
the output. The graphi cs camera picture is then displaye d and can be adjusted
or focused, for example. The preview picture is not transmitted.
The preview mode stays activated un til a graphics pi cture is eithe r transmitted
to or received from the remote end.
3.3.6.2.5 CLEAR OVERLAY
Clicking the CLEAR OVERLA Y key del etes the graphic over lay memory . Bo th
overlay pictures are deleted locally.
3.3.6.2.6 SHOW GRAPHIC
The SHOW GRAPHIC key is for the quick switchover in the PICTURE IN PICTURE function (see SHOW VID EO). Cl icking this key co rres ponds to the settings “BACKGROUND → GRAPHIC” and “PIP → INCOMING MOTION VI-
DEO” in the PIP window.
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3.3.6.2.7 GRAPHIC OPERATIONS
Click the GRAPHICOPERA TI ONS key t o op en a wind ow tha t pr ovides tra nsfer and conversion operations for graphics files.
SEND FILE TO GRC
Click the SEND FILE TO GRC key to load a JPEG picture from the PC into the
graphics codec. The picture can then be transferred to the remote end with
the command JPEGFILE TRANSFER (SECTION 3.3.6.2.8). The JPEG pictures must be pictures encoded in the Baseline mode with the format
720×576.
ERASE FILE
The ERASE FILE key is used to delete stored files.
GET FILE FROM GRC
Click the GET FILE FROM GRC key to display a window with which you can
load a JPEG picture from the graphi cs cod ec into the PC. “Ge t Snapshot P icture” is used to convert t he current ca mera pictur e into JPEG form at and load
it into the PC (frame-grabber function). Similarly, “Get Receive Picture” is
used to load the picture received from the far end into the PC.
CONVERT FILE
CONVERT FILE is used to convert a file available in the
Tag Image File For-
mat
(TIFF) into the JPEG format.
Note
The conversion of a picture r equires a cer tain amount o f time.
The time taken depend s on the size of the picture and t he processing power of the PC . It is therefore reco mmended that any
necessary picture format conversions are made before the
connection is set up.
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GRC COMMAND
The GRC COMMAND function is used for service purposes.
ESCAPE
ESCAPE can be used to interrupt a file transfer (SEND/GET FILE).
GRC QUALITY
The and keys are used to set the level of compression and therefore the quality of the c onver si on o f the cam era pictur e int o the JP EG for mat.
Pictures that generated with a higher quality occupy more memory and require more transmission time. The DEFAULT setting is suitable for most applications.
3.3.6.2.8 JPEG FILE TRANSFER
JPEG FILE TRANSFER is used to transfer a picture that has been loaded into
the graphics codec from the PC (SEND FILE TO GRC) to the remote end.
3.3.6.3 VIDEO MODE: Selecting the video standard
With the VIDEO MOD E selecto r, you can switch the video input s an d ou tputs
of the TITAN videocodec between the European PAL standard and the American NTSC standard.
3.3.6.4 ON SCREEN DISPLAY: Enabling/disabling the on screen display
With this switch, you can enable or disable the on screen display (described
in Annexe A12). When the on screen display is disabled, it cannot be activated, and no system messages are displayed on the monitor.
It is not possible to move this switch to ON if th e “On Screen Display” software
module has not been loaded into the system.
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3.3.6.5 CONFIGURE VIDEO INTERFACES: Setting the video interfaces
The CONFIGURE VIDEO INTERFACES key activates the VIDEO INTERFACE S window. This window can be used to configur e the video interfaces of
the TITAN videocodec.
3.3.6.5.1 VIDEO INPUTS: Configuring the video inputs
The video input sockets can be configured in four different variants. The
YC/CVBS and RGB/CVBS mode switches are used for this purpose.
TABLE 3.5 shows the setting of these switches and the signal types at the
sokkets. The signal t ype is also displayed in the VIDEO INTER FACE S window
under every socket.
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The MOTION VIDEO SOURCE keys are used to pre -select the video input signal for the motion video codec. The selected signals are then displayed in
the VIDEO panel in the VIDEO SOURCE list. The signals YC and CVBS 1 to
6 are available, depending on the video input switch (see above table).
The video input signal can also be selected for the graphics codec. This preselection is with the GRAPHICS CODEC SOURCE keys. The selected signals are then displayed in the VIDEO panel in the GRAPHIC SOURCE list.
The signals RGB1 and CVBS 1 to 6 are avai lable, depe nding on the se tting of
the video input switches (see above table).
The GRAPHIC MONITOR switch is used to set whether there is a separate
graphics monitor.
The settings of the keys MOTION VIDEO SOURCE and GRAPHICS CODEC
SOURCE as well as the GRAPHIC MONITOR switch are saved with the
SAVE
key .
3.3.6.5.2 VIDEO OUTPUTS: Configuring the video outputs
The video output sockets can be configured in two different variants. The
RGB/CVBS switch is used for this purpose. The setting of this switch and the
signal types at the sockets are listed in the following table. The signal type is
displayed under the socket in the VIDEO INTERF ACES window , independe nt
of whether a signal is present at the socket or not.
TABLE3.5 SWITCHES AND THEIR EFFECT ON THE VIDEO INPUT SIGNALS
Switches Connection sockets
YC / CVBS RGB / CVBS CVBS1 CVBS2 Y C R G B SYNC
YC RGB CVBS 1 CVBS 2 Y C R G B Sync
CVBS RGB CVBS 1 CVBS 2 CVBS 3 CVBS 4 R G B Sync
YC CVBS CVBS 1 CVBS 2 Y C CVBS 5 CVBS 6 – –
CVBS CVBS CVBS 1 CVBS 2 CVBS 3 CVBS 4 CVBS 5 CVBS 6 – –
1 If RGB is set as input signal for the graphics codec, then RGB should also be set for the output signal
TABLE 3.6 EFFECT OF SWITCH ON THE SIGNAL TYPE AT THE VIDEO OUTPUT
Switch Connection socket
RGB / CVBS CVBS1 CVBS2 R G B Sync
RGB CVBS 1 CVBS 2 R G B Sync
CVBS CVBS 1 CVBS 2 CVBS 3 CVBS 4 CVBS 5 CVBS 6
currently set
signal typ e
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SIG
There is a SIG key next to every video output socket. This calls up a window
with which the required signal for this output socket can be selected:
The following signals can be selected:
An inconsistent setting such as the switching through of the RGB signals to an
output of type CVBS (FBAS) is not possible.
Exit the selection window by clicking CLOSE (the setting is not changed). The
selected setting is displayed in the VIDEO INTERFACES window above the
socket. The abbreviations used are explained in TABLE 3.7.
TABLE3.7 VIDEO SIGNALS AT THE OUTPUT SOCKETS
Setting Name Meaning
OFF OFF Video output swit ched off
MOTION VIDEO CODEC MPC Motion video codec signal at video output
GRAPHICS CODEC GRC Graphics codec signal at video output
RGB-INPUT RGB-IN RGB input sockets switched through to
RGB outpu t sockets
a
a Functions only if th e signal ty pe R G B has been set for the o u tput sock et . All fou r sockets
(R, G, B and SYNC) are switched together
CVBS1-INPUT CVBS1-IN
The CVBS input socket is switched through to
the selected CVBS output socket
b
b Functions only if the signal type CVBS has been set for the output socket
CVBS2-INPUT CVBS2-IN
CVBS3-INPUT CVBS3-IN
CVBS4-INPUT CVBS4-IN
CVBS5-INPUT CVBS5-IN
CVBS6-INPUT CVBS6-IN
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3.3.7 DATA Panel
The DATA panel is called up by clicking DATA! in the menu bar. In the DATA
Panel, three videocodec data interfaces can be configured:
HSD (High Speed Data), LSD (Low Speed Data) and Timeslot 16 (TS16).
3.3.7.1 LSD SETTINGS
Note
The two switches described in the following can be used to
configure the physical LSD interface. This interface can also
be configured with the opera tor panel. The foll owing should be
noted:
The LSD interface m ust be conf ig ure d in a ccord ance with the
data source or sink (e.g . a PC). This can be dif ferent for the local and remote unit.
Data rate, parity and start/stop bits can be set with the operator panel or with the INTERFACES function in the SYSTEM
panel.
The actual data rate available does not depe nd on the setting
of the LSD interface. It is calculated as follows:
LSD
Transmission rate
= 64 kbit/s – 1.6 kbit/s – Audio data rate.
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3.3.7.1.1 LSD MODE
The LSD MODE selector switches the LSD data channel on or off. It also determines how the LSD data1 is used. The possible settings are:
3.3.7.1.2 HANDSHAKE
The HANDSHAKE se lector is u sed to se lect th e handsh ake procedure for th e
LSD interface from the following possibilities:
Use the handshake procedur e wheneve r possible. This ensures that there is
no loss of data, even at low data rates
2
3.3.7.2 HSD SETTING
The HSD (X.21) MODE switch switches the videocodec HSD channel on or
off.
3.3.7.3 TIMESLOT 16 SETTING
The TIMESLOT 16 switch activates/deactivates the TS-16 interface.
Setting Meaning
OFF No data rate reserved for the LSD channel
V.24 The LSD data is available at the partner’s LSD interface. The transmission is
bidirectional.
PRINTER If the partner (far end) is also using a Philips TITAN videocodec, the LSD data
received t here is output at t he printer inter f ace at the TTL so cket.
CURSOR In this mode, the LSD channel carries the graphics cursor data. A prerequisite
is that the far-end equipment is also a TITAN videocodec.
COMMANDS This mode is used for the transmission of commands to the far end for remote-
control purposes. This mode can only be used between TITAN equipment.
1 If an LSD channel is activated, a B channel (or timeslot) is reserved for audio and LSD data. If the LSD is inactive,
the free data rate is used for the encoding of video data.
Setting Meaning
OFF No handshake
RTS/CTS Handshake via the RTS/CTS lines of the RS232 interface
XON/XOFF Protocol handshake
2 If the buffer is full, the handshake procedure halts the transmission from the data source to the TITAN videocodec.
The buffe r m emory cannot overflow, therefore.
A correctly set data rate for the physical interface ensures that the data sink can process the received data
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3.3.8 LINE Panel
If LINE! is clicked in the menu bar, the LINE panel is called up. In the LINE
panel, the network interface can be selected and set.
3.3.8.1 LINE INTERFACE
The LINE INTERFACE slide selector selects the network interface from the
following possibilities:
Setting Meaning
E1 selects th e E1 network int erface. Jumper settings on the interfac e unit deter-
mine whet her the interface is symmetr ic al or unsymmet r ical
a
.
a The interface operates correctly only if the jumpers on the interface unit have been inser-
ted correctly (see SECTION2.10).
T1 selects the T1 network interface. The jumpers on the interface unit must be set
to T1.
a
1 ∗ X.21 selects the X.21 interface Main with a data rate between 56 kbit/s and
1920 kbit/ s. The connected netw or k mu st switch t he data en b loc, since t r ansit
time differences are not compensated.
1..6 ∗ X.21 activates all six X.21 interfaces, each with a data rate of 56kbit/s or 64kbit/s.
Transi t tim e diff eren ces bet ween the indivi dual ch annel s are aut omati call y compensated by the TITAN videocodec.
1..6 ∗ X.21
(LEASED LINE)
As 1..6 ∗ X.21, but without dialling procedure
RS449 selects the RS 449 int er face w it h a dat a rate betwe en 56 kbit/s and 1920 kbit/s.
The connected network must switch the data en bloc, since there is no transit
time difference compensation for the individual channels.
DISTRIBUTION Up to three partners can be called simultaneously (each with 2 B channels).
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3.3.8.2 SIGNALLING
3.3.8.3 AUTO ANSWER
With the AUTO ANSWE R swi tch, it is possible to an sw er in coming cal ls au tomatically . To do this, put the switch i n the ON position. This is the u sual setting.
To prevent calls from coming in, set the switch to OFF.
3.3.8.4 LINE MODE
LINE MODE has three different modes which are explained in the following.
This selection is only to be made for the RS449 and the X.21 interface and
has no effect on the E1/T1 interface.
3.3.8.5 CLOCK SOURCE
Three different clock sources can be selected for the line interfaces:
Setting Meaning
H.244 (auto) Automatic selection of the signalling procedure H.221 or ISO/IEC CD 13871
H.242 (bidir.) The complete in band signal ling proc edure is c ar ried out includi ng capabil it y ex-
change as per H .242. Thi s sett i ng shou ld al way s be sel ect ed if a
bidirecti onal
channel is available (H. 221 signalling in each channel).
H.331 (unidir.) Limited inband signalling procedure, no capability exchange takes place, only
commands are tran smitt ed to the far e nd. The re is no check w hethe r the f ar end
can communi cate with t he codec. This setting must be select ed if only one
uni-
directional
channel i s present. I t s hould also be e nsured that the proced ure is
implemented in the far end terminal.
ISO/IEC 13871 Selection of the signalling procedure as per ISO/IEC CD 13871, connections
can only be set up with equipment that supports this procedure.
Setting Meaning
n∗56 kbit/s
a
a Available from SW-Version 4.0
Provides n × 56 kbit/s at the selected interface.
b
b The dialling must be initiated from the terminal adapter
n∗64 kbit/s
(UNRESTRICTED)
Provides n × 64 kbit/s at the selected interface.
n∗64 kbit/s
(RESTRICTED)
a
Provides n × 64 kbit/s at the selected interface, however with a net data
rate of 56kbit/s. Every e ight h b it is set t o o ne . Thi s mode can o nly be used
if the codec provided with octet timing at the X.21 interface.
Setting Meaning
INTERNAL The internally generated clock is used.
EXTERNA L An external cl ock is used
a
.
a Accuracy: ±50 ppm for E1/T1, ±1% for RS449 and X.21
RECOVERED
b
b only f or E 1/T1 network interface
The clock recovered from t he receive sign al is used.
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The following limitations should be noted:
3.3.8.6 DATA RAT E
This window is used to set the total data rate with which the next connection
is to be set up. If the LINE inter face th at ha s been selected is 1..6 ∗ X.21 and
three terminal adapters have been connected, for example, the data rate
3∗64 kbit/s (192 kbit/s) and all lower rates can be selected. T o do this, click the
required data rate with the mouse.
Note
Also, if you have entered all six calling num bers in the number
block, only as many B channels are set up as have been set
here. If the an en try in the list of telep hone numbers (d irectory)
is used, please ensure that number of entries in the directory
is as least the number of B channels that you require for the
total data rate (the total rate is saved with the configuration).
During a connection, you ca n switch between the sele cted maximum data rate
and any of the lower rates. The connection retains the maximum capacity.
The number of total data rates that can be set depends on the network interface used. For ISDN connections, up to six B channels are available. If
1 ∗X.21 or RS449 are used, the TITAN system detects the clock frequency
and calculates the number of possible 64-kbit timeslots. In the E1 network,
there are 30 timeslots.
Note
When you select the data rate, r emember that thi s is the total
data rate. The actual data rates available for th e t ransm ission
of the audio and vide o data are l ower (see S ECTION3.3.2.2).
For ISDN connections, 1.6 kbit/s are reserve d in each B channel for inband signa l ling pu rpos es, i n n on-ISDN cases, a total
of 1.6 kbit/s is reserved. If additional data is transmitted, this
also reduces the available data rate for audio and video.
3.3.8.7 OCTET TIMING
This switch is only relevant if the X.21 interfaces are used.
E1/T1: A clock is always recovered from the receive signa l to read in
the received data. Fur ther proce ssing is w ith the clo ck set by
CLOCK SOURCE. For there to be no slip between read-in
data and processed data, these clo cks must be the sa me. RECOVERED is therefore recommended as clock.
1..6 ∗ X.21:
CLOCK SOURCE must be EXTERNAL, if th e lin e equipment
is connected to X.21 interfaces and a call should be set up.
Exception: For testing (LOOP), INTERNAL clock can be selected.
1 ∗ X.21:
The default clock mode is EXTERNAL. If the data transmission unit does not provide a clock, the system switches to INTERNAL automatically.
RS449:
see 1 ∗ X.21
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During the transmission of data via an X.21 interface, the octet timing is
usually lost. A bit-sear ch algorithm i s used to synchron ise with the byte form at
of the data stream.
Some ISDN terminals do not have the bit-search algorithm capability. To nevertheless set up connections with such equipment, the connection must be
synchronous with th e I SDN- byte clock. For this, mu st b e e nsure d t hat octet timing is provided transparently at the TITAN X.21 interfaces.
Note
Set the OCTET TIMING switch to AVAILABLE only if the connected Terminal Adapter remote end provides octet-timing
synchronous transmission.
3.3.8.8 E1 FORMAT
Two frame formats are available for the E1 network interface:
Warning
The set frame format should be the sam e as the frame format
of the transmission path.
3.3.8.9 T1 SETTINGS
The three switch es ar e u sed to m ake setting s to ada pt th e T 1 in terf ace t o th e
network. The settings fo r T1 FORM AT and LINE CODE can be obtained from
the network operator.
Typical values for the line length can be set with the LINE LENGTH switch:
Setting Meaning
DOUBLE FRAME Frame alignment signal without CRC evaluation (see SECTION 1.3)
CRC MULTIFRAME Frame alignment signal with CRC evaluation (see SECTION 1.3)
Setting PIC/PULP cable (range/m) ICOT cable
*)
(range/m)
CEPT (standard)
−
L1/G.703 0 - 35 0 - 80
L2 25 - 65 65 - 145
L3 55 - 95 130 - 210
L4 85 - 125 195 - 275
L5 115 - 155 260 - 340
L6 145 - 185 325 - 405
L7 175 - 210 390 - 470
*) The characteristic impedance for ICOT cables is 140
Ω
!
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3.3.9 CONFIG pull-down menu
The CONFIG pull-down menu can be called up from several panels. It contains all functions rel ated to config uring such as t he loading and storing of configurations.
3.3.9.1 LOAD FROM FILE
Click the “LOAD FROM FILE” menu item in the CONFIG pull-down menu to
call up the following window:
In the Drives selection window, select the drive holding the required unit configuration and, in the Dirs/Files selection window, its directory and name. The
extension should be “.CF G”. Confirm your choice with the Select key. The selected configuration is loaded in to the system . If you do not want to load a configuration, you can abort the procedure with Cancel.
3.3.9.2 SAVE IN FILE
If you click the “SA VE IN FILE” menu item in the CONFIG pull-dow n menu, the
same window appears as for “LOAD FR OM FILE”. In the Dri ves selection window, se lect the d rive on w hich the unit conf igura tion is to be st ored, an d in the
“File Name” window, enter the desired name. Confirm with OK. The current
unit configuration is thus stored under the given file name. To abort without
storing, click Cancel.
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3.3.9.3 ERASE FILE
If you click the “ERA SE FILE” me nu ite m in the CON FIG pull- down menu, the
same dialogue window as for the “LOAD FROM FILE” function appears. Select the directory and the name of the configuration that you want to delete.
Confirm with the Select key. The selected configuration file is deleted. If you
do not want to delete a configuration, abort by clicking Cancel.
3.3.9.4 SAVE ON BOARD
The TITAN videocodec can be operated without a PC. Up to ten unit configurations can be stored on the cod ec plug-in units. These configuration s also be
allocated names and can be called up with these names1.
To store the current configuration, click the “S AVE ON BOARD” menu item in
the CONFIG pull-down menu. The following window appears:
First select a memory location for the configuration. Do this by either clicking
the arrow keys next to the digit, or by dire ctly clicking on the currently set memory location and, keeping the mouse button held down, selecting from the
window that appears. Then enter the configur ation name under whi ch the unit
configuration is to be stored and confirm with SAVE CONFIGURATION. The
1 These configurations can only be called up or deleted via the operator panel (see SECTION 4.1).
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current
unit configuration is store d unde r the gi ve n name in the sel ecte d memory location in the TITAN videocodec. To abort without storing, click CANCEL.
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3.3.9.5 SET DEFAULT ON BOARD
The default configuration is always loaded when the TITAN videocodec is
switched on. The configur ation that is to be stored as the default con figuration
can be selected. To do this, set the required parameters and store this configuration in the videocodec system with the “SAVE ON BOARD” function (see
SECTION 3.3.9.4). Then click the “SET DEF A ULT ON BOARD” menu item in
the CONFIG pull-down menu. The following dialogue window appears:
Enter the memory location of the configura tion that you want to use as default
configuration.
Note
Since during the boot pr ocess, the re is not yet a c onnecti on to
the PC, the default configuration must be stored in the system
(“on board”).
3.3.9.6 FACTORY SETTIN GS
Click the “Factory settings” menu item in the CONFIG pull-down menu to load
the factory setting into the current unit configuration.
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3.3.10 SYSTEM Panel
Monitoring and control of the system can be underta ken from the SYSTEM panel. Here, alarm messages are displa yed, commands (see C HAPT ER 5) can
be entered, and self-tests ca n be acti vated. Th is panel i s called up by cl icking
SYS! in the menu bar.
3.3.10.1 Command entry
After the window has been activated with the cursor, commands can be entered to control the codec. These commands are similar to the ones listed in
CHAPTER 5. “^B” in front of the command word can be left out. The codec’s
response is output in the SYSTEM RESPONSE window.
The password that you obtain when the ran ge of codec functions is extended
can also be entered in the COMMAND field. To enter the password, type in
PASSWD followed by a space and the new password.
To obtain an overview of the allowable commands and the syntax, enter the
command “help”. A complete list is output in the SYSTEM RESPONSE field.
3.3.10.2 LOG FILE
Commands, system responses and alarms can be recorded automatically in
a log file (LOG.PRT in the current directory). This selector switches this
function on or off.
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3.3.10.3 Display of alarm messages – ALARM LIST
System alarms are displayed in the ALARM LIST window.
The following alarms can be displayed:
3.3.10.4 LSD REMOTE CONTROLLED
This switch setting deter mines w hether the
local
unit can be remote ly control -
led or not via the LSD channel.
3.3.10.5 CONTROL
This switch is used to set whether the local or the remote system is to be controlled by the local PC.
When the CONTROL swit ch is set to REMOTE , the LSD channel is ope ned in
both directions and occupied for remote control.
Note
Remote control via the LSD channel is described in
CHAPTER 7.
TABELLE3.8 ALARM MESSAGES OF THE TITAN CODEC
Alarm text Meaning
DEMUX DSP ERROR The “DEMUX” DS P ( D ata Multiplexer/D em ultiple xer) coul d n ot be booted or t here is no clock.
NO COMMUNICATION WITH AUDIO CODEC (G728 only) The audio codec cannot be communicated with (is not responding)
NO COMMUNICATION WITH AUDIO BOARD
The audio board (echo canceller, video crossbar) cannot be communic at ed with (is not re -
sponding)
NO COMMUNICATION WITH VIDEO BOARD The video board cannot be communicated with (is not responding)
NO COMMUNICATION WITH GRAFIC BOARD The graphics board cannot be communicated with (is not responding)
CANNOT BOOT AUDIO CODEC (G728 only) The audio codec cannot be booted
G703: NO SIGNAL No HDB3 signal present
G704: AIS ERROR Alarm Indication Signal (all 1s) received
G704: LOSS OF SYNC Loss of frame synchronisation
G704: LOCAL N-ALARM Bit error rate of received data is greater than 10E-6
G704: LOCAL D-ALARM Bit error rate of received data is greater than 10E-3
G704: RECEIVED N-ALARM Bit error rate of remote end is greater than 10E-6
G704: RECEIVED D-ALARM Bit error rate of remote end is greater than 10E-3
NO LINE CLOCK (RS449 and 1*X. 21 only) No (externa l ) clock present at the RS449 (1*X.21) inte r f ace
H221: FRAMING NOT FOUND No H221 frame synchronisation present
NO VIDEO INPUT SIGNAL No video input signal at motion video codec
NO VALID LINE CLOCK (RS449 and 1*X.21 only) Invalid clock at the RS449 (1*X.21) interface
MVC: NO COMMUNICATION WITH DECODER The motion video codec decoder cannot be communicated with
MVC: NO COMMUNICATION WITH ENCODER The motion video codec encoder cannot be communicated with
EC: FATAL ERROR Critical error in the echo canceller (e.g. RAM error, synchronisation with audio codec)
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3.3.10.6 SOFTWARE DOWNLOAD
The interface unit, motion video codec and graphics codec contain memory
modules that store software for these functional units. This software can be
updated in the event of a system upgrade. The SOFTWARE DOWNLOAD
function is used to copy new software from the PC to the respective plug-in
unit (board). Click the SOFTWARE DOWNLOAD key in the SYSTEM panel.
This calls up the window that controls the copying of the software.
Note
It is possible to carry out a remote software download via the
LSD channel to all modules.
Exception:
It is not possible to
carry out a remote software download to the old version of the
interface unit (ID. no. 229500).
3.3.10.7 Download procedure
Make sure that the new plug-in unit software is located in the PC directory
from which the TITAN software is started.
Select the plug-in unit for which the software is to be updated. Set the BOA RD
switch to:
– IFE for Interface Unit,
– MVC for Motion Video Codec, or
– GRC for Graphics Codec.
The name of the respective file is automatically entered into the FILE NA ME
field. Start the transmission of the software to the plug-in unit by clicking
(the codec must be switched on). After a few seconds,
there is an interna l reset, which causes the har dware to load the new soft ware
from the PC.
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56#46 &190.1#&
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The three bars PROGRAM, DATA and
EPROM indicate how much of the program and data have been loaded and
how much of the data has been stored
in the EPROM.
The CRC ERRORS window indicates whether errors have occurred during the transmission between PC and codec. The loading of software
can be successful in spite of errors that occur, since the last data block is retransmitted up to three times. If error s occur for the third attempt, then the load
process is aborted.
The key is used to abort the loading of the soft ware into
the codec.
If other plug-in units are also to receive new software, repeat the above procedure (select the plug-in unit, START DOWNLOAD).
Note
T o ensure the corr ect operation of the new softwar e, the codec
should be switched off and on again after a download to all
PCBs.
3.3.10.8 INTERFACES
Click the INTERFACES key to display a window in which the interfaces
RS232C, LSD, TTL, RS232 and RS485 can be set.
Depending on the interface, the baud rate, the parity bit and the number of
data bits can be set.
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+06'4(#%'5
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For the RS232C in terfa ce ( C ONTROL IN TER FACE), it is also possible to set
the mode for operation with string commands (STRING) or for PC operation
(PACKET).
If a mouse is connected to the RS232 interface (RS232 MOUSE INTERFACE), the interface should be set as follows: BAUD-RATE 1200, NONE PARITY, 8 BITS. The “Mode” switch can be used to set whether it is a mouse system (MSYS), a Genius, Logitech or Microsoft (MS) mouse.
Note
If a LOGITECH mou se is being use d, the BITS sw itch must be
set to 7 bits.
If a PC is to be connected to the RS232 i nterface , the in terfa ce can be op erated either in the PACKET or STRING m ode (se e R S232C interf ace). The setting ACECAT has been provide for operation with a graphics tablet.
The mode switch for the RS485 interface is set to STRING if an Operator interface has been connected. If a camera pa n + tilt unit is to be connected, then
the selection should be made between VIDEMECH and CANON.
The type of addressing is set with CAMERA ADR. Set to MULTIPLE if more
than one unit is connected which is to be moved independently of the others
(VIDEMECH only). If only one uni t is con necte d ( or mor e th an o ne that are to
be moved in the same way), the switch should be set to BROADCAST.
The TTL interface can be used for various applications. The selection is with
the TTL MODE switch. The possible settings are:
Setting Meaning
OFF Interface inactive
LOGIC LEVEL TRANSFER In the Logic-level-t ransfer mod e, th e logical lev els at the l ocal
interface are transferred to the remote end. These logical levels can, for example, be used to control
external units at
the remote end
.
The signal edges are evaluated (i.e. the change from “0” to
“1” or vice-versa).
PRINTER In the printer m ode, the interface is compa t ible with a Centro -
nics interface. Without the need for adaptation, you can connect a printe r (e.g . Epson FX 8 0 an d compatible) for pr i nt ing
log files
COMMAND In the command mode, you can use signals at the TTL inter-
face to control the
local
codec.
The signal edges are evaluated (i.e. the change from “0” to
“1” or vice-versa).
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3.3.11 TEST panel
Click TEST! in the main panel to call up the TEST panel
The LINE LOOP switch is used to loop-back the signal at the network interface1. The following applies:
Note
The loop is always of the active network interface that has
been set in the LINE panel (see SECTION 3.3.8).
The VIDEO TEST PICTURE and GRAPHIC TEST PICTURE selectors are
used to switch the test pictures of the motion video codec and graphics codec
either on or off.
To exit this panel and return to MAIN panel, click the CLOSE key.
Note
This panel is intended for service purposes only. Please ensure that no loop is set when this panel is exited.
Setting Meaning
OFF No loop switched. This setting should always be selected before the panel is
exited.
LOCAL The sign al is l oop ed back di re ctl y at the ne twork i nte rfac e and i s re tu rned to th e
Interface unit. The signal is also forwarded to the transmission route.
REMOTE The incoming data stream is fed straight back into the transmission path (the
signal i s retur ned to the rem ote en d). The l ocal T IT AN vi deoc odec al so re ceive s
the incoming signal. This test includes the transmission route.
1 In ISO/IEC CD 13871, it is not possible to switch a loop during a connection.
.QQR KU UYKVEJGF
!
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4 OPERATION WITH THE OPERATOR PANEL
The menus that can be called up via the operator panel are described in the
following sections.
FIGURE 4.1 OPERATOR PANEL OF THE TITAN VIDEOCODEC
The operator panel of th e TIT AN videocodec con sists of a two-line displ ay with
24 characters per line , a keypad with the dig its 0 to 9, an Return key, a cursor
block and an ESC key.
In addition, the operato r panel has two L EDs. The “ Power” LED d isplays whether the unit is operation, and the “Error” LED lights up if there is a system
alarm.
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4.1 Menu tree
The different menus of the TITAN videocodec are organised in a tree structure. The root of the tree stru cture is the main menu, whi ch is displa yed when
the codec is switched on:
Main men u
The first line of a displayed menu always contains the functions or subm enus
that can be selected. The second line contains more information on the currently selected menu item. The cursor block keys are used to move to the required menu item in the menu tree.
By pressing the or key, the neighbouring menu item (to the right or left)
is selected (horizontal movements in the menu tree). The asterisk
(∗)
indicates
the currently active menu item.
With the key , the selected sub menu can be called up. The key calls up
the previous menu (vertical movements in the menu tree).
The Return key confirms a selection (e.g. activates a selected network interface) or a menu i tem that re quires the e ntry of data ( e.g. a cal ling number ).
Such menu items are always displayed with a “?” in the second line.
The Escape key exits the data entry menu and calls up the main menu.
Every pressing of a key is acknowledged acoustically.
The menu structure makes it possible to change individual parameters directl y
without having to repeat all settings.
The main menu c onsists of five sub menus. T he comp lete men u tree is sho wn
diagrammaticall y in MENU TREE4.1, page 4–104 to MENU TREE4.6, page
4–109. This list is to be used as a r eference if settings ar e to be made. The list
shows all levels up to the last level. The individual selection points in the last
level are not shown in the list.
SECTION 4.3 contains an example of how letters and other char acters can be
entered via the operator panel.
*CALL DISC MODE SYS MEM
Call menu
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4.2 Entry of commands
To set a function, search for the corresponding menu in the menu tree and
move to this menu by means of the operator panel curso r keys. Make the settings and then confirm with the Retur n key . The fol lowing two sections cont ain
examples of the use of the operator panel.
4.3 Programming example: Stor ing calling numbers and unit configurations
for ISDN connections
Keys Display Remark
Main menu This “root” of the menu tree. To obtain
this menu from any other menu,
press the Escape key .
CALL submenu
Call up the
CALL
submenu by pressing
the “down” cursor key.
With the “right” cursor key, select the
SET
menu item.
SET submenu
Press the “down” cursor ke y to call up the
SET
submenu.
NRS submenu
Call up the
NRS
submenu by pressing
the “down” cursor key.
Entry of the prefix number
AREA submenu Call up the
AREA
submenu by pressing
the Return key.
to
NRS submenu
Enter the country code and/or the local
area code with the keys 0 to 9.
Confirm with the Return key. The
NRS
submenu is then automatically called up.
*CALL DISC MODE SYS MEM
Call menu
*NAME CONN SET ANSW
Call by name
NAME CONN *SET ANSW
Set call-by-name memory
*NRS MODE SAVE ERASE
Set call numbers
*AREAN1N2N3N4N5N6
Area code
Enter area code:
*AREAN1N2N3N4N5N6
Area code
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CHAPTER 4: OPERATION WITH THE OPERATOR PANEL
Entry of the calling numbers
( )
N1 – N6 submenu Use the “right” / “left” cursor keys to sel-
ect the required number N1 to N6.
Call up the selected submenu with the
Return key.
to
NRS submenu
Enter the calling number without prefix.
Confirm with the Return key. The NRS
submenu is automatically called up.
T o enter further c alling numbe rs, select a
number from N1 to N6 and proceed as
described above.
SET submenu The “up” cursor key calls up the SET sub-
menu.
Selecting the unit configuration
( )
With the “right” / “left” keys, select the
MODE submenu.
Call up the MODE submenu with Return.
( )
MODE submenu With the “up” and “down” cursor keys,
select the required configuration and
confirm with Return. The SET submenu
is then called up automatically.
Keys Display Remark
Enter phone number:
AREA*N1N2N3N4N5N6
Number 1
*NRS MODE SAVE ERASE
Set call numbers
NRS *MODE SAVE ERASE
Set call mode
Select Configuratio n
A
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The calling numbers are now stored under the desired names.
Saving
( )
Select
SAVE
with the “right” / “left” curs or
keys.
Call up the
SAVE
submenu by pressing
the Return key.
Enter a name for the dialled connection.
The letters and characters are selected
by repeatedly pressing the “up” / “down”
cursor keys.
If the name consists of several characters, use the “left” / “right” cursor keys to
position the cursor accordingly.
Confirm the configuration name with the
Return key. A message appears on the
display to show that the data has been
stored. Press any key to automatically
return to the
SET
submenu.
Main menu
Pressing the Escape key returns calls up
the main menu, the starting point for
other settings.
Keys Display Remark
NRSMODE*SAVEERASE
Save call-by-name data?
Enter call name:
AVT
Call data stored!
Press any key!
*CALL DISC MODE SYS MEM
Call menu
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