Orban opticodec 7200, opticodec 7400 Handbook

Page 1
OPTICODEC
Handbuch
7200 / 7400 / PC Remote
Page 2
Page 3
OPTICODEC
7200/7400
Software V4.25/2007
PC REMOTE
Software V1.24/2007
Page 4
4 E OPTICODEC
The Codec Technology 7
OPTICODEC 7200 and 7400
Certification / Labelling 8
Description, Introduction and Installation 9
OC 7200 Front Panel / Keypad
Explanation of Keypad Symbols 10
OC 7200 and 7400 Rear Panel Basic Connections
Audio Input, symmetrical Audio Output, symmetrical Digital In-/Output (AES/EBU standard) 11
Digital In-/Output (S/PDIF standard) External Synchronisation Serial, Synchronous Interface (X.21) 12
RS232/RS422, Serial, Asynchronous Interface (Remote) 13
Alarm/Control Interface 14/15
RS232/RS422, Serial, Asynchronous Interface (Ancillary) 16
Standardized Connector to Ethernet Standardized Connectors to ISDN Network U Connector Power Supply 17
OPTICODEC PC Remote Introduction
Connection to PC 18
Software Installation
Download of OC Remote Software Program Configuration 19
Release of Additional Features 20
Software Info and Update 20/21

Table of Contents

Update Process Interrupted DSP Software System Software Hardware Configuration Boot Software 22
Jumper Settings Important Jumpers on the Main Board
Input Impendance Switch over RS232/RS422 23
Data Input Enter New Recipient 24
ISDN Connection Edit Recipient 25
Audio Data Encoder Algorithm, ISDN Sync, Bitrate Samplingrate, Audio Mode Audio Input, Userdata 26/27
G.722 with H.211 or SRT Sync X.21 Mode, Codec Loop 28
Ethernet Connection IP Connection Point-to-Point, Transmit, Receive 29
Broadcast, Multicast, Applications: LAN, WAN, Broadcast, Multicast 30/31
Tip Saving Units ISDN/IP Directory to your PC Harddisk Edit Saved Directory 32
Loading ISDN/IP Directory to a Unit 33
System Setup
Configuration of the connected OPTICODEC in System Setup TCP/IP Basics Local IP Address Subnet Mask Default Gateway 34
Page 5
OPTICODEC E 5
Loading System Setup to a Unit Default Configuration 48
Connect Establishing a Con. w ISDN/IP Dir. 49
Establishing Connnection Establishing a Con. w. DD Buttons 50
Automatic Connection Start Coonection Monitoring 51
Currency Icon Sync Icon Ajust Audio Parameters Adjust Audio Levels 52
Establishing a Con. w. mit X.21 Establishing a Con. w. Codec Loop Call Acceptance with ISDN Sync AUTO Establishing a Con. w. ISDN Sync AUTO Terminating a Connection 53
OPTICODEC 7400
Front Panel / Keypad Explanation of Keypad Symbols Graphical Display Module 54/55
Data Input
Enter New Recipient Connection Mode 56
ISDN Connection ISDN Numbers ISDN Sync 57
Audio Data Encoder Shortname Store & Exit 58
IP Connection Point-to-Point, Transmit, Receive IP Address 59
Broadcast Multicast Audio Data Encoder, Shortname Store & Exit 60

Table of Contents

Dialing TCP/IP Audio Buffer Management 35
Quality of Service Type, TOS, Precedence and TOS Values DiffServ, DiffServ Codepoints 36/37
Audio Data Encoder 37
Audio Port (TCP) TCP/IP Remote Control Name, Port 38
Autodetect Accept Configuration 39
Dialing: Dial. Attempts, Dial. Delay Redialing Attempts PBX Prefix Min. length for PBX Prefix 40
ISDN Configuration ISDN Protocol Accept Telephone Calls Accept MPEG/G.722 Calls MSN Check 41
ISDN Interface Number Prefix for incoming calls 42
Local Numbers SPID Numbers 43
I/O Levels Misc Alarm Signals 44
Level Range, Headroom External Sync Input Backlight Automatic Connection Start 45
Backup Settings X.21 Clock Monitoring 46/47
Saving Units System Setup to your PC Harddisk 48
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6 E OPTICODEC
System Setup
Accept Configuration Algorithm, ISDN Sync 61
Samplingrate Audio Mode Audio Input Userdata 62
ISDN Configuration ISDN Protocol ISDN Interface Local Numbers 63
SPID Numbers Dialing: Dial. Attempts, Dial. Delay Redialing Attempts PBX Prefix Min. length for PBX Prefix 64
Incoming Calls Accept Telephone Calls Accept MPEG/G.722 Calls Test Called Number ISDN Interface Number Prefix for incoming calls 65
TCP/IP Configuration Local IP Address 66
Subnet Mask 67
Default Getaway Remote Control Name 68
Port Auto Detect Audio Transmission Buffer Management 69
Port Accept Configuration Audio Data Decoder Dialing Quality of Service 70
TOS, Precedence and TOS Values DiffServ, DiffServ Codepoints 71
Audio Level Level Range Headroom Adjust I/O Levels 72
Interfaces External Sync Input Alarm Signals 73
Backup Settings Applications 73/75
Automatic Connection Start 75
X.21 Clock Monitoring 76
Backlight Base Configuration Reset Configuration Delete Database 77
Connect
Explanation of the Display Lettering Establishing a Con, w. ISDN/IP Dir. ISDN Connection Establishment 78
Ethernet Connection Establishment Establishing a Con, w. Quick Dial 78
Establishing a Con, w. DD Buttons Connection Monitoring Currency Icon 80
Sync Icon Establishing a Con. w. mit X.21 Establishing a Con. w. Codec Loop Connect Menu Terminating a Connection 81
Status Messages Number Codes in Standby Mode 82
ISDN Error Codes 83/84/85
Brief Lexicon Ethernet Error Codes 86
Technical Specifications 87
Delivery Scope 88

Table of Contents

Page 7
OPTICODEC E 7

The Codec Technology

The "ISO-MPEG Audio Layer 2 and Layer 3“ compression procedures developed by the Fraunhofer Institute and the Institut für Rundfunktechnik allow audio signals (even large amounts of data) to be reduced in real time and transferred without any subjective loss of quality. The digitised signals received in this form are compressed (encoded) to save on transmission bandwidth, time and cost.
CODEC is a word coined from the verbs "enCOde“ and "DECode“ and stands for a new data transfer technology via ISDN or satellite.
The principle of codec technology for audio data reduction is based on the frequency-dependent sensitivity of the hu­man ear. According to its objective auditory properties and subjective hearing habits, the ear ignores certain sounds and concentrates on the most essential ones: the message. This contrasts with purely electronic techniques which hear everything, even the non-essential noise.
The codec technology takes advantage of the difference between the ear and electronic measuring device when transferring data. By masking all meaningless noise, even the minutest, a reduction ratio is achieved, which is ne­cessary to transport large amounts of data in real time via ISDN, for example. The data is instantly decompressed and subjected to A/B comparison and then the ear at the other end of the line hears only what it is intended to hear – no more and no less.
Some typical examples of data reduction rates achieved with ISO-MPEG1 can be seen in the following table:
Algorithm Bitrate
(kbps)
Audio
mode
Reductions
ratio
in Layer 1 384 Stereo 1:4
in Layer 2 192...256 Stereo 1:6...1:8
in Layer 3 112...128 Stereo 1:10...1:12
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8 E OPTICODEC
The OPTICODEC units hereafter complies to the following regulations and standards:
EN 60950/VDE 0805/IEC 950: Protection Class 1. VBG4, Part 5 paragraph 4: Regulations for the prevention of accidents “Electrical Systems and Materials”.
EC directives: EMV 89/336/EWG and “low voltage regu­lation” 73/23/EWG.
FCC Rules, Part 68 Subpart D: FCC/Part 68 registration number US: OBDYNAN42059.
Industry Canada registration number IC: 4265A-001.
EMC directives: DIN EN 55103-1 (June 97) - interference radiation, ambiance E1 and DIN EN 55103-2 (June 97) - resistance to jamming, ambiance E5, intensity degree 4 (ITU/R recommendation 500-4).
EN 50419:2005 Marking of Electrical and Electronic Equip­ment accordance with Directive 2002/ 96/EC (WEEE).
For recycling the OPTICODEC please refer to your re­sponsible OPTICODEC distributor.
According to the requirements of the EMC directive, the regulations for electromagnetic compatibility, it is necessary that the following measures are observed when using/ma­nufacturing the connection cables:
For all connections shielded cables should be used
(with respect to the audio cables the well-known EMT 211 has proven its worth).
The shields should be soldered to the GND connections
and additionally to the connector shell directly.
For 3-pole audio sockets/plugs (type XLR) the respective
counter sockets /plugs manufactured by NEUTRIK should be used.
Pin 4 (housing) is to be connected to pin 1 ground.
OPTICODEC 7200 and 7400 Certification / Labelling
Note on
EMC Measures
Page 9
OPTICODEC E 9
The OPTICODEC 7200 and 7400 are fully duplex audio codecs with ISDN and X.21 interfaces as a standard. The OPTICODEC 7400 is also equipped with an Ethernet 100Base-Tx interface for the remote control and distribution of audio data over networks such as Intranet, ATM etc. TCP for Point-to-Point connections, UDP for Broadcast and Multicast modes.
Correct operation of the OPTICODEC is only guaranteed when using the delivered RJ45 Typ CAT5 cables.
Correct operation of the OPTICODEC is only ensured when the unit is connected to an approved Telecom access. When operating the unit on other telephone networks (private exchange), several adjustments are necessary. Please see chapter ‘System Setup’. Adaptation to certain networks other than herewith specified can not be guaranteed.
The units are designed for installation into 19” racks. In­stallation with additional mounting rails is recommended because of the depth of the units. The OPTICODECs do not have internal fans and do not necessarily require additional ventilators even when built into racks. A minimum distance does not have to be kept within installed units.
This manual is for the use of OPTICODEC owners and their staff only. The information in the manual, including all texts and drawings, is to be treated as confidential and may not be passed on to third parties, reproduced, translated or multiplied in any form whatsoever. Hereby the right to register utility models or patent applications is reserved explicitly. In the case of violation or non-compliance resul­ting in consequential losses, ORBAN Europe GmbH may be entitled to claim damages according to the German BGB, HGB as well as Competition Law and Patents Act.
In this manual the simplified denotation ‘OPTICODEC‘ refers to both units.
Description
Ethernet/ISDN Cabling
ISDN Connection
Installation
Please note
Comments
OPTICODEC 7200 and 7400

Description, Introduction and Installation

Page 10
10 E OPTICODEC
Explanation of
Keypad Symbols
SYNC OK
MODUS
STATUS
CLOCK ERROR
CON
OK
REJ
HANG UP
STANDBY
OPTICODEC 7200 Front Panel / Keypad
Display of the decoder sync flag. If this LED lightens, the decoder receives correct data from the partner unit.
X.21 Shows an X.21 connection. ISDN Shows an ISDN connection. For ‘codec loop’ none of the above displays are active.
Only for an X.21 connection. Shows that there is either no clock at the X.21 connection or a clock with the wrong frequency.
Only for ISDN connections. Shows that at least one B-chan­nel is connected to the partner unit.
For X.21: connection established. For ISDN: ISDN connection synchronized.
The connection is fully established as soon as the Sync ‘OK’ LED lightens additionally.
Only for ISDN: connection could not be established.
By pressing this key a connection can be disconnected. It has no function, if no connection had been established. If the key is pressed for the first time, the STANDBY LED flashes. The ‘Hang Up’ key has to be pressed again within 10 seconds to disconnect the line.
Shows that the unit can be called or can establish a con­nection itself.
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OPTICODEC E 11
OPTICODEC 7200 and 7400

Rear Panel / Basic Connections

1 2
3
Level: -4 dBu to.+21 dBu adjustable via ‘System Setup’ (+12 dBu preset) Input Imped.: 10 kOhm (switchable over to 600 Ohm, jumper JP 800/801 Connector: XLR jack (female)
Pin 1 2 3
Assignment GND IN (+) IN (-)
Level: -4 dBu to.+21 dBu adjustable via ‘System Setup’ (+12 dBu preset) Output Imped.: < 50 Ohm Connector: XLR jack (male)
Pin
1 2 3
Assignment GND OUT (+) OUT (-)
Level: according to IEC 958, prof. format Connector: XLR jack (female/male)
Pin
1 2 3
Assignment GND IN/OUT (a) IN/OUT (b)
(1) Audio input,
symmetrical
(2) Audio output,
symmetrical
(3) Digital input/output
(AES/EBU standard)
Page 12
12 E OPTICODEC
OPTICODEC 7200 and 7400 Rear Panel / Basic Connections
54
Connector: RCA (female/female)
Pin Center Pin Ring
Assignment IN GND
adjustable via ‘System Setup’ Connector: BNC jack (male/male) Signal level: TTL
Pin Center Pin Ring
Assignment IN GND
for the transmission of coded audio data to an external data transmission unit, e.g. terminal adapter or satellite MODEM. Transmission Rate: 8 to 384 kbps Connector: 15-pole Sub-D
Pin 1 2 3 4 5
Assignment NC Tx
(a)
CTR
(a)
Rx (a)
IND
(a)
Function*
O O I I
Pin 6 7 8 9 10
Assignment CLK
(a)
NC GND Tx
(b)
CTR
(b)
Function*
I O O
(4) Digital Input/Output
(S/PDlF standard)
(5) External
synchronisation
(6) Serial Synchronous
Connection
(X.21)
6 7 8
Page 13
OPTICODEC E 13
OPTICODEC 7200 and 7400
Rear Panel / Basic Connections
Pin 11 12 13 14 15
Assignment Rx IND
(b)
CLK
(b)
NC NC
Function*
I I I
* related to OPTICODEC O=output I=input
to control the OPTICODEC using an external PC (pls. see also chapter ‘PC Connection’, page 18).
Switch over from RS232 to RS422: Jumper J3 to 1+2 (pls. see also chapter ‘Jumper Settings’, page 23).
Format RS232/RS422: 9600 baud 8 data bits 1 stop bit no parity
Connector: 9-pin Sub-D
* related to OPTICODEC
=not to be used! =assigned O=Output I=Input
For RS232 internal signals are assigned to pins 2, 3 and 5, for RS422 to pins 1, 4, 5, 6 and 9! A fully assigned 1:1 cable to the PC might result in the damage of the PC and/or OPTICODEC! Please use only cables as described above.
(7) RS232/RS422
Serial Asynchronous
Interface
(Remote)
Warning
Pin 1 2 3 4 5 Assignment Tx+ RC_Tx RC_Rx Rx- GND RS232 RS422 Function* O O I I
Pin 6 7 8 9 Assignment Tx- NC NC Rx+ RS232 RS422 Function* O I O I
Page 14
14 E OPTICODEC
OPTICODEC 7200 and 7400 Rear Panel / Basic Connections
(8) Alarm/Control
Interface
*
**
***
****
The switching commands of the OPTICODEC input are transmitted and made available as open collector signals at the partner unit. The inputs and outputs (same as GND connections 13, 25) are electrically isolated via an opto­electronic coupler.
Connector: 25-pin Sub-D
related to OPTICODEC common earth for all inputs pls. see 'Alarm Signals' (pages 44 and 73) common earth for all outputs
Pin 21 22 23 24 25 Assignment OUT4 OUT3 OUT2 OUT1 O.GND Function* Rew Stop Record Play ****
Pin 1 2 3 4 5 Assignment NC NC NC IN8 GND Function* Red-Light IN
Pin 6 7 8 9 10 Assignment IN7 IN6 IN5 IN4 IN3 Function* Reset (Index) FF Rew Stop
Pin 11 12 13 14 15 Assignment IN2 IN1 IN GND NC NC Function* Record Play **
Pin 16 17 18 19 20 Assignment VCC OUT8 OUT7 OUT6 OUT5 Function* +5V Red-Light Reset (Index) FF System Setup*** DIS CON
Page 15
OPTICODEC E 15
OPTICODEC 7200 and 7400
Rear Panel / Basic Connections
Input Wiring
Output Wiring
internal
Please note
Warning
* for e. g.: Farnell Electronic
Components GmbH,
D-82041 Deisenhofen
Fax: +49 / 89 613 5901
www.farnell.com
Imax.: 10 mA
internal external
Imax.: 10 mA Umax.: 25 V or
extrenal external
The recommended functions of the inputs and outputs correspond to the way these are assigned by OPTICODEC users. These assignments should be taken over to avoid any problems in remote controlling externally connected units during transmissions between different OPTICODEC units.
When manufacturing a connection cable for the interfaces Alarm Control Interface and Ancillary, the respective con­nector shells (width: 15 mm) have to be used:
Type/Pole Sub-D Shell Order No*
9-pole DTZK-9-K 463-012 25-pole DTZK-25-K 463-036
Page 16
16 E OPTICODEC
OPTICODEC 7200 and 7400 Rear Panel / Basic Connections
(9) RS232/RS422
Serial Asynchronous
Interface
Note
Warning
9 10 11 12 13
Data rate: 8 16 24 32 48 56 64 128 (kbps) Layer 2: 0 1200 1200 2400 2400 2400 4800 4800 (baud) Layer 3: 0 1200 1200 2400 2400 4800 4800 9600 (baud)
Pin 1 2 3 4 5
Assignment NC R_Tx R_Rx NC GND Function* O I
Pin 6 7 8 9
Assignment NC RTS CTS NC Function*
to transmit user data via OPTICODEC. Format: 0 ... 9600 baud (pls. see table) 8 data bits 1 stop bit no parity
Table of implemented ancillary data starting from software V4.10
If the software version of one or both of the OPTICODECs is V4.10, then a baud of 1200 is always utilised. If the software version of both units V4.10, the OPTICODECs are automatically set to the lowest default ancillary data rate.
Connector: 9-pin Sub-D
Internal signals are assigned to pins 7 and 8. These pins should not be connected!
Page 17
OPTICODEC E 17
Transmission Rate: 10 Mbit/s Connector: RJ45
Transmission Rate: 2 x B + D channel per S
0
Connector: RJ45 for S0 connections
and RJ11 for U connection (USA and Canada networks only) 7400
7200 (optionally)
The ISDN interfaces have to be used in incremental sequence.
100-240 V AC, 50-60 Hz, 0.375-0.20 A, max. 25 VA
The OPTICODEC has a switching power supply unit. Therefore a voltage selector switch is not necessary.
Power Supply Fuse: 3.15 A in power supply Type Schurter MXT 315.
3pole socket
OPTICODEC 7200 and 7400
Rear Panel / Basic Connections
Pin 1 2 3 6 Assignment TD+ TD- RD+ RD-
Pin 3 4 5 6 Assignment T+ R+ R- T-
Pin 1 2 3 4 5 6 Assignment U U
Pin 1... 3 4 5 6... 8 Assignment U U
(10) Standardized
Connector
to Ethernet
(11) Standardized
Connectors
to ISDN Network
(12) U Connector
Note
(13) Power Supply
Connection
Page 18
/04)#/$%#0#2EMOTE )NTRODUCTION

Description

Note

Information

The OC PC Remote software is a 32-bit version for Microsoft Windows 98/2k/ME/XP for the remote control of the OPTI­CODEC over the RS232 interface using a PC. It covers the same adjustment parameters as the OPTICODEC itself.
To avoid any misunderstanding, the ‘OPTICODEC PC Remote’ is referred to on the following pages as ‘OC Remote’ or ‘OC Remote software’.
The licensee may not copy the software or the included original documentation or own any such copies. Furthermo­re, the licensee may not change, adapt, translate, duplicate, loan, lease or in any other form supply the availability of the software or service instructions as a whole or any part thereof. It is strictly forbidden to reengineer or disassemble the software, or in any other way and means attempt to trace the source code. Due to the further development for product improvement of the present series units and alterations of certain industrial parts, it cannot be avoided that some parts might not be fully compatible. Different component modifi­cations can lead to different configuration options. Deviating program sections in the software are therefore possible. All technical information may be subject to change without notice.
Connection
to PC
  % /04)#/$%#
The connection between the PC and your OPTICODEC occurs via a serial 9-pole or a 25-pole cable (KB003 male/ female).
Connected to PC Connected to OPTICODEC
System requirements: Microsoft Windows 98/2k/ME/XP and a free PC serial in­terface.
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OPTICODEC E 19
OPTICODEC PC Remote

Software Installation

Start the setup program of the current application from the Internet or from the delivered data medium with a double­click on the setup icon. Follow the installation instructions on the PC screen.
With double click on the icon you start the application. After a short initializing sequence the basic configuration menu of the connected OPTICODEC appears.
A mouse click on the 'Program' menu opens a pulldown menu.
This configuration is only necessary if ‘TIMEOUT!’ is displayed and not ‘STANDBY’. With the menu item ‘Program Configuration’ you can adapt the PC serial interface and adjust the display colors.
A safety quer y to appear before a connection is disconnected can be set up by activating the ‘Confirm disconnect’ check box.
Via 'Default Input' you can select the audio input by using of the Direct Dial Buttons. You can choose between: Analog, AES/EBU and S/PDIF.
Confirm yor settings with ‘OK’.
Download of the
OC Remote Software

Program Configuration

Page 20
/04)#/$%#0#2EMOTE 3OFTWARE)NFO
Release of
Additional Features

About OC Remote

Info

The menu item 'Enter key codes' is used for release of additional features (e.g. the 4SB ADPCM algorithm). The release is dependent on the unit model and its serial num­ber. Each unit receives a unique key code. This function is only active in the standby mode.
A window is displayed over the next menu item called “About OC Remote” where you will find information on the version number, creation date and manufacturer of the OPTICODEC PC Remote software.
This function is found on the 'Unit/Info' pulldown menu and serves to display the latest software versions of the connected OPTICODEC unit.
All software parts with their cor­responding versions are displayed. You can also interrogate the serial number of your OPTICODEC.
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Page 21
OPTICODEC E 21
OPTICODEC PC Remote

Software Update

This function is found on the 'Unit/SoftwareUpdate' pull­down menu.
If necessary, please store the device-specific *.BIN file on your local hard drive under Program Files/Orban/Optico­decRemote/Updates. The program automatically recognizes the connected OPTICODEC and which software parts are to be updated.
A dialogbox accompanies you throughout the update and informs you about the current process.
The OPTICODEC 7400 shows the update process in the display.
Do not switch off your PC or OPTICODEC during the update process.
Damaged or incompletely loaded software always causes an error message. After a failed update, you may repeat
the update process.
Software Update
Warning
Page 22
22 E OPTICODEC
OPTICODEC Software Update
If the software update was interrupted, for e.g. due to a user or computer error, please observe the following:
Switch the unit OFF and ON again. In most cases the unit displays an error message about that part of the software which had not been loaded completely and a reload is requested.
In case of the DSP software an error message might not be displayed after switching the unit on and the main menu is displayed as normal. The error message is only shown once another algorithm has been selected, e.g. G.711.
If the system software is damaged or not completely loaded, an error message is always displayed.
An interruption during the update of the hardware configu­ration might have the effect that the unit cannot be started again, the display is blank. In this case the unit has to be opened and a jumper has to be set.
Connect the pins 11 and 12 on JP4 with a jumper. When the unit is switched on again, a boot menu is shown. In this setting each file can be reloaded using the external update software.
Warning
The jumper has to be removed after the update!
The update of the boot software is realized in two phases. In the first phase the software is downloaded from the PC to the unit. If the update is interrupted during the first phase, the unit only has to be started again.
The software is programmed into the unit during the se­cond phase. This takes about 5 seconds. This process can only be interrupted by switching the unit off or by a power supply failure. After this interruption the unit cannot be started again, not even by the above described emergency start. It can only be reloaded by ORBAN Europe GmbH in Ludwigsburg/Germany.
OPTICODEC
Update Interrupted

DSP Software

System Software

Hardware Configuration

Boot Software

Page 23
OPTICODEC E 23
OPTICODEC

Jumper Settings

Important
Jumper Settings
on the Main Board
Input Impedance
Switch over RS232/RS422
Attention Unplug power supply cable before opening the unit!
Switching over the input impedance ANALOG INPUT (pls. see page 11)
Jumper JP 201/202 1 + 2 set: 600 Ohms 2 + 3 set: 10 kOhms
Switching over from RS232 to RS422 (pls. see page 13)
Jumper JP3 1 + 2 set: REMOTE port operates in RS422 1 - 2 open: REMOTE port operates in RS232
Page 24
/04)#/$%#0#2EMOTE $ATA)NPUT

Data Input

In standby mode select ‘Data Input’ from the main menu or alternatively the 'Data/Edit local directory' pulldown menu..
The telephone directory appears (ISDN/IP Directory).
The window and columns widths are variable and can be modified with the mouse.
Creating a
New Recipient
  % /04)#/$%#
Open the input mask by clicking onto the function ‘New’. Here you have the choice between ISDN or Ethernet.
Page 25
OPTICODEC E 25
OPTICODEC PC Remote
Data Input
Depending on the number of installed ISDN modules, the writeable input fields are represented white. Two B-chan­nels are available for each ISDN module. Activate an input using the mouse. The positioning marker of the cursor blinks when the number can be entered. Move between ISDN input fields using the tab key.
Once the ISDN numbers have been entered, you can assign a name to the recipient (max. 49 characters).
The ISDN/IP address directories of the connected ORBAN OPTICODEC 7600, OC 7400, CTAXI or PAN-PRO can easily be imported and exported via the 'Data' menu to your PC for more efficient management.
Select the entry you want to process from the ISDN/IP direc­tory using the 'Edit' key or with a mouse double-click.
To delete a recipient click with the left mouse button onto the entry in the ISDN/IP directory you would like to delete and press the 'Delete' key..
Deletion takes place after confirming with the ‘OK’ key.
Alterations of the default audio configuration can be made by clicking onto the ‘Change’ key.
The configuration menu of the audio parameters which are assigned to the current entry appears. By activating the arrows (left-right) you can change the pre-settings.
ISDN Connection
Edit Recipient
Page 26
/04)#/$%#0#2EMOTE $ATA)NPUT
Algorithm
ISDN Sync
The 'Algorithm' menu item is used for presetting the desired data reduction procedure on outgoing calls.
By pressing the arrow keys, you can select between Layer 2, Layer 3, G.722, G.711 and 4SB ADPCM (optional).
The 'ISDN Sync' menu item is used to set the desired synchronisation procedure of the partner codec. The available sync modes for Layer 3 are: AUTO – automatic codec detection MusicTAXI (MusicTAXI sync for 1 to 6 B-channels) NO SYNC for the use of 1 x B-channel NO SYNC (INV) for the use of 1 x B-channel ZEPHYR (Telos sync for 2 B-channels)
For Layer 2: AUTO – automatic codec detection. MusicTAXI (MusicTAXI sync for 1 to 6 B-channels) NO SYNC for the use of 1 x B-channel NO SYNC (INV) for the use of 1 x B-channel PRIMA (CCS sync for 2 B-channels)
AETA (for 4SB ADPCM; optional)
The activation for AETA sync and 4SB ADPCM algorithm (not included in the standard delivery) is performed as described on the page 20.
Bitrate
  % /04)#/$%#
According to the setting of the algorithm and the number of outgoing B-channels, the transfer rate is set here: 64, 128, 192, 256, 320 or 384 kbps for layer 2 and 64, 128, 192, 256 and 320 kbps for Layer 3.
Page 27
OPTICODEC E 27
OPTICODEC PC Remote
Data Input
The 'Samplingrate' menu item is used for setting the desired sampling frequency on outgoing calls. You can choose between: 16, 22.05, 24, 32, 44.1, 48 kHz, AUTO (the sampling frequency of the addressing device is used)
The 'Audio Mode' menu item is used for setting the desired audio behaviour on outgoing calls.
Mono mono signal. The left input is used..
Dual Mono two different signals which do not jam each
other, e.g. left channel: original soundtrack; right channel: translation
Stereo as for Dual Mono, each channel is encoded
separately, but with the difference that a channel is allocated excess bits if less or no audio is transmitted on the other channel (i.e. bit distribution as needed).
Joint Stereo comparable with MS stereophony (middle/
side signal). Encodes the sum between left and right and the difference between left and right; these are encoded and transmitted separately (subjectively better quality at low data rates).
The 'Audio Input' menu item is used for setting the desired audio input on outgoing calls. You can choose between: Analog and AES/EBU and S/PDIF.
The menu item 'Userdata' is used for setting the desired ancillary data on outgoing calls. You can choose between: OFF (no ancillary data is transferred) 1200, 2400, 4800 baud with Layer 2 and 3.
If the ancillary data is switched off (OFF), no remote effect signals are transmitted either.
Between OPTICODECs, the smallest preset baud rate of the ancillary data is used in the context of the device handshake.
Samplingrate
Audio Mode
Audio Input
Userdata
Note
Page 28
/04)#/$%#0#2EMOTE $ATA)NPUT
G.722 Connection
with H.221
or SRT Sync
If you enter a G.722 partner in the ‘Data Input’ menu, please observe the following order:
1. Enter the ISDN number.
2. Enter G.722 in ‘Algorithm’
3. Determine the Sync modes in ‘ISDN Sync’.
Now H=H.221 or S=SRT is displayed in the directory for the selected SYNChronisation procedure.
X.21 Connection
Codec Loop
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To activate the X.21 interface, enter an 'X' in the ISDN field (e. g. position #11 in directory).
If the input fields are empty, the OPTICODEC starts the ‘codec loop’ mode. This serves as a test for the coded audio signal (without ISDN, e. g. position #12.)
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OPTICODEC E 29
Should an Ethernet connection be desired, please activate the radio button for Ethernet. Enter the target address and, for easier identification, also enter the name of your connection partner.
You may enter both IP address and plain-text names* (* only if a name server also exists).
In the same way as the description of ISDN connections, you can set the audio parameters for the planned connec­tion here. The menu guides you through algorithm (Layer 2 and Layer 3), mode, bitrate, and finally userdata.
The target address to be entered is dependent on the desired transmission mode. The entries can be changed by activating the arrow keys. The following IP connection types are possible: Point-to-Point, Transmit and Receive.
A bi-directional connection between two units. TCP is utilised as the protocol, possible transmission errors are corrected to a certain degree by this protocol. These entries are marked with an “X” in the Sync column of the directory.
Should ‘Point-to-Point’ be set for the mode, then the IP address of the partner unit is to be entered.
The unit functions as a transmitter for broadcast or multi­cast transmission. UDP is utilised as the protocol, possible transmission errors can not be corrected. In this mode, the unit transmits to one or more receivers. Bidirectional UDP connections are possible when both units are set to TRANSMIT. Marked with “T” in the directory.
The unit functions as a receiver for a broadcast or a multi­cast transmission. This setting is the opposite of TRANSMIT. Marked with “R” in the directory.
Ethernet Connection
IP Connection
Mode
Point-to-Point
Transmit
Receive
OPTICODEC PC Remote
Data Input
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For TRANSMIT and RECEIVE it is to be distinguished whether a broadcast or a multicast transmission is desired.
Broadcast
Multicast
Applications
Unicast
A broadcast address must be entered for the unit set to TRANSMIT (for e.g. position #2 in the directory:
255.255.255.255). The unit set to RECEIVE dials the address of the partner unit. This is the address of the unit set to TRANSMIT.
Here the same address has to be dialed from both the TRANSMIT and the RECEIVE units. This has to be a mul­ticast address found in the number range from 224.0.0.0 to 239.255.255.255 (for e.g. position #4 in the directory:
234.0.0.0).
Describes the POINT-TO-POINT bi-directional data transmission from one unit to another within the same network (LAN) or another network (WAN).
LAN
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Local Area Network (Ethernet, Intranet). According to ISO, LAN is a locally strongly limited network mostly installed within company headquarters.
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OPTICODEC E 31
OPTICODEC PC Remote
Data Input / Applications
Wide Area Network. Long-distance data traffic networks such as the Internet or connections using ISDN units.
Describes the data transmission from one unit to all of the other units within the same network.
Describes the data transmission from one unit to all of the others within the same network or another network.
WAN
Broadcast
Multicast
Broadcast
All units within the network receive the same packet which they then have to analyse even when the packet has not been directed to all units. This results in an unnecessarily high processing power load. Several broadcast transmissions could possibly even cause disturbances in these units.
Routers which are able to direct broadcast transmissions to other networks are not customary.
Multicast
Only the units of a mul­ticast group receive the data, all other units remain unloaded.
A large selection of routers which support multicast are available.
The multicast mode should preferably be used instead of the broadcast mode. Impor­tant is therefore the agreement between connection partners of suitable application and protocol types. The following is a brief comparison:
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Tip
Saving the Unit
ISDN/IP Directory to
your PC Harddisk
The local ISDN/IP directory is saved in the 'OpticodecRe­mote‘ program directory as a 'num.dat‘ file. This directory can be easily exported to any number of PCs, hence saving time by copying the same address book directory to all of them.
Use the feature ‘Save directory to disk’ to store the ISDN/IP directory of your unit on PC.
Do this by selecting the file format you require, either Di­rectory File (*.DIR), Text separated Files (*.TXT) or Comma separated Files (*.CSV) and importing the address book into MS Word or Excel, for example. These file formats can also be exported to the unit.
However, the program’s own editor can run only *.DIR file formats.

Edit saved directory

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The entries can be edited, newly entered, deleted and sorted by means of the ‘Edit saved directory’ function.
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OPTICODEC E 33
OPTICODEC PC Remote
Data Input
Click onto ‘Load directory to unit’, locate the desired *.DIR file and finally activate the ‘Open’ key.
Select from the directory the desired file format.
All 96 entries (connection partners) with their names, ISDN numbers/IP addresses and set audio parameters are now loaded to the unit.
It is irrelevant whether all or only some of the entries have been occupied or whether they are all or partly vacant; or whether the connected unit is an OPTICODEC 7600, OC 7400, CTAXI or PAN-PRO.
Exporting the directory can easily be repeated should it fail because of for e.g. a power down or power failure.
Loading
ISDN/IP Directory
to a Unit
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Configuration of the
connected OPTICODEC
in System Setup
TCP/IP Basics
Local IP Address
Select 'System Setup' from the 'Unit' pulldown menu. The basic configuration menu of the connected OPTICODEC differs in appearance depending on the unit type and its equipment.
In this menu item the basic settings of the unit within the network are entered.
In the data entry mask, enter the IP address of your OPTICODEC. Be aware that every connection to the network must possess its own unique IP address.
Subnet Mask
Default Gateway
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The 'Subnet Mask' is used to subdivide a network into smaller subnets, in order to reduce the data traffic to the subnets and/or permit better administration of the data traffic.
The data exchange occurs between the various nodes in the network with complete transparency to the user. However, the IP software detects when a data packet is intended for a different subnet and sends it to the corre­sponding gateway.
If necessary, you can enter the IP address of a router here. Otherwise, 0.0.0.0 must be entered.
You will be informed of the IP address, Subnet Mask and Default Gateway by your network administrator.
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OPTICODEC E 35
OPTICODEC PC Remote
System Setup
This menu item serves for setting the desired dialing attempts. You can select between 1 ... 5 and INFINITE.
This menu items serves for setting the desired time between dialing attempts (between 10 and 360 seconds).
This menu item serves for setting the desired redialing attempts, if a connection had not been disconnected by the calling OPTICODEC. You can select between 0 ... 9 and INFINITE.
The settings for audio transmission over the network are found in this menu.
This buffer is used to bridge short interruptions in the data transfer. The size of the buffer (which temporarily holds the data from the network) can be influenced.
Dialing
Dialing Attempts
Dialing Delay
Redialing Attempts
TCP/IP Audio
Buffer Management
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To ensure the most secure transfer possible, the maximum value (bar all the way to the right) should be set; however, this results in a longer delay.
If more value is placed on having a shorter delay, then the bar can be moved to the left; however, this has a negative impact on the transmission security.
To permit the best possible transmission security with a short delay, you should ensure that no additional devices/ workstations apart from the OPTICODEC are transmitting data over the network.
Quality of Service
Type
TOS
Not all applications have equal status for data transfers, and not all applications require the same high standards for data transfers. To minimise or prevent the risk of bottlenecks in data networks, the IP header implements the so-called 'Quality of Service (QoS)‘ in addition to the identifier fields such as time to live, protocol and header checksum.
If the router is configured accordingly, QoS actively regu­lates the load status on the network and uses the available bandwidth intelligently and effectively on the basis of data prioritisation or bandwidth reservation.
TOS (Type of Service) or DiffServ (Differentiated Service Architecture) are the key mechanisms of QoS and are responsible for the assessment of packet priority.
The TOS bits contain information on the ways and means of how a datagramm should be handled by a router. An overloaded router can, for example, on the basis of the TOS field determine which packets are less important (and can therefore be cancelled) and which packets must essentially be forwarded.
Precedence Values
Precedence Significance Precedence Significance
000 Normal 011 Flash
010 Priority 100 Flash Override
010 Immediate 101 Critical
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OPTICODEC E 37
OPTICODEC PC Remote
System Setup
DiffServ uses a new definition of the IPv4 TOS header field and IPv6 traffic class header field. The goal of DiffServ is to subdivide the data traffic into service classes with different priorities, without using the intensive signalling on each router. Each packet can be marked and is handled and transmitted accorded to this marking.
Each per-hop-behaviour (PHB) flow is determined by a DSCP. You can choose between: Standard (Default, 'Best Effort'), Class Selector 1-7, Assured Forwarding 11-13, 21-23, 31-33, 41-43, and Expedited Forwarding.
Details and additional specifications can be found in the generally available ‘Request for Comments’ lists (RFC1349 TOS; RFC2474 DiffServ) on the Internet (www.rfc-editor.org).
This encoder configuration is taken over when the OPTI­CODEC is called by another OPTICODEC over IP. The pre-settings are AUTO.
Descriptions of the individual functions can be found starting page 26.
TOS Values
DiffServ
DiffServ Codepoints
(DSCP)
Note
Audio Data Encoder
TOS Significance TOS Significance
0000 Normal 0010 max. Reliability
1000 min. Delay 0001 min. Monetary Cost
0100 max. Throughtput
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Audio Port (TCP)
TCP/IP Remote Control
Unit Name
Port
This menu contains the setting for audio transfer over the network with TCP and UDP protocols.
For the OPTICODEC, the value 6136 should always be entered.
For easier identification of devices on the network, the name of your OPTICODEC must be entered here without name length restrictions. This name is transmitted to the 'NETControl' program and shown in the device list.
An important part of the TCP/IP model are the port num­bers, also known as socket numbers. With these ports, it is advised which service is desired.
One distinguishes between two categories of ports: the so-called 'defined‘ or 'well-known ports‘, which are assigned by IANA (Internet Assigned Number Authority) and which cover a number range from 0 to 1023 ; and the “dynamic ports”. Therefore only port numbers from 1024 to 65535 may be entered here.
For the OPTICODEC, the port number 6137 is to be en­tered.
A comparison between TCP/IP and ISDN:
TCP/IP ISDN
IP Address ISDN Number Port Bearer capability (for e.g. telephone / data transmission)
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OPTICODEC E 39
OPTICODEC PC Remote
System Setup
This function is for the automatic recognition of units using a control software such as NETControl and can only be used in a local area network. For the control of units outside of the network area, this function should remain disabled.
This point determines the call accept mode of the OPTICO­DEC. You can set the accept mode more or less specific for the unit and transmission permanently.
Then the OPTICODEC only accepts calls in the respec­tive configuration. Or you can select the operation mode AUTO(matic Codec Detection). The OPTICODEC serves as a ‘SLAVE’ and takes over the parameters of the calling unit automatically. The ‘AUTO’ mode is not available for ‘Audio Input’ and ‘Userdata’. Descriptions starting page 26.
Statements about the audio compatibility (via ISDN) with external codecs can be found on the supplied data carrier or on the Internet at: www.orban-europe.eu.
Autodetect
Accept Configuration
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Dialing
Dialing Attempts
Dialing Delay
Redialing Attempts
PBX Prefix
Min. length for
PBX Prefix
This menu item serves for setting the desired dialing attempts. You can select between 1 and 5.
This menu item serves for setting the desired time between dialing attempts (between 10 and 60 seconds).
This menu item serves for setting the desired redialing attempts, if a connection had not been disconnected by the calling OPTICODEC. You can select between 0 and 5.
Under certain conditions (e.g. private branch exchange PBX), a number that prefixes the ISDN number for dial-up via ISDN can be entered here. To make an outside call from a telephone system, for instance, enter 0.
A preselection number can also be entered here. The number max not exceed five digits.
Using the 'Min. length for PBX Prefix‘ menu option, define the minimum number of digits an ISDN number must have to allow this prefix to be set before the number.
If, for example, internal extension numbers have three digits, a 4 should be entered here.
To continue to enable internal calls, PBX dialling codes for ISDN numbers with less than four digits are ignored.
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OPTICODEC E 41
OPTICODEC PC Remote
System Setup
The OPTICODEC has two ISDN D-channel protocols: EURO (DSS1) and NATIONAL 1 (North America).
For use in the USA, the OPTICODEC is equipped with 'IMD4‘ type ISDN modules. This is necessary if additional U interfaces are required for North America.
Decisive is the ISDN protocol of your connection, not the one of the partner unit! You can alter the settings by pressing the arrow keys.
This menu item serves to define the OPTICODEC beha­vior when operated at a S0 connection together with other units. You can select between: ALWAYS every telephone call is accepted NEVER every telephone call is rejected.
In this menu item the call acceptance for MPEG and G.722 calls is defined. The settings are the same as the menu item (Accept Telephone Calls).
In case of a passive call, the interrogation of the MSN number can be activated or switched off. If 'YES' is entered for MSN check, the called number is compared to the one which has been entered in Local Numbers. The call is only accepted, if both numbers are identical.
ISDN
Configuration
ISDN Protocol
Warning
Accept
Telephone Calls
Accept
MPEG/G.722 Calls
MSN Check
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In case of EURO ISDN, the MSN is usually the ISDN num­ber of your connection without the area code, in case of private exchanges only the number of your extension.
The ‘YES’ option should only be activated if, in addition to the OPTICODEC, other devices (e.g. a telephone, fax machine, PC card) must also be operated on the same ISDN connection.
Warning
ISDN Interface
Number Prefix for
incoming calls
The incorrect configuration of only one unit might result in the rejection of all calls
Via this menu item, the S0 and U interfaces used for the transfer are selected:
S0 PMP (Point-to-Multipoint)
for multiple device connection. (This is the usual connection type.)
S0 PP
for equipment connection
(Point-to-Point) U PMP
(Point-to-Multipoint)
for North America only (using a ISDN module type 'IMD4').
These settings concern incoming calls for OPTICODEC 7200 and 7400. If the 'Add PBX Prefix‘ option is set to 'YES‘, the number from the PBX Prefix (see 'Dialling‘, page 40) is in­serted before the number for incoming calls. The minimum number length applies here too. This setting is required only for those ISDN systems that do not automatically add the ISDN number.
For direct S0 connections with EURO ISDN, the leading zeros in the ISDN numbers are not transferred for incoming calls, e.g. 7141226622. This can be corrected by means of the following entries.
If a 0 is entered for 'National Calls‘, this is added here. The same applies for 'International Calls‘, where 00 is to be entered in Germany.
When these digits are entered, the ISDN number required to make the call will actually be displayed.
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OPTICODEC E 43
OPTICODEC PC Remote
System Setup
The ISDN numbers entered here are sent when the con­nection has been established. Under certain conditions (e.g. private branch exchange (PBX)* type), the individual ISDN number must be entered.
If a local number is required, then all of the entry windows must always be confirmed.
The identification numbers entered here are sent when the connection has been established. They are only necessa­ry when operating the OPTICODEC on US and Canadian networks.
The identification numbers are entered and allocated as described in ‘Local Numbers’.
You will be informed of the SPID number by your ISDN provider. These input fields otherwise remain empty.
Local Numbers
Note
SPID Numbers
S0 without PBX* S0 on PBX*
1 x unit only
can remain vacant
or
ISDN number
without area code
can remain vacant
or
only the No. of
your extension
n x units
ISDN number
without area code
and
MSN Check
activated
only the No. of
your extension
and
MSN Check
activated
(Test Calle d Number)
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I/O Levels
Misc
This menu item serves for setting the analog Input and Output levels for the left and right channels.
Ex-factory the setting is +12 dBu, the headroom is 0 dB. This means: input level = output level = 12 dBu. With a mouse click on the ‘up’ and ‘down’ arrow keys the level value can be altered.
Alarm Signals
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If these signals are switched OFF, the relevant switching information of the OPTICODEC inputs is transferred to the partner unit. Otherwise you can select between:
CON The signal is set to pin 19 once the decoder
has been synchronized i.e. when the connection is ‘OK’.
DIS The signal is set to pin 18 if the line has been
disconnected from the partner unit or because of an ISDN error.
CON+DIS Both signals are set.
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OPTICODEC E 45
OPTICODEC PC Remote
System Setup
Level Range
Headroom
Warning
External Sync Input
Backlight
Automatic
Connection Start
This menu item allows the adjustment at the level range: 50 or 80 dB.
This menu item serves for setting the desired headroom. You can select between 0 and 20 dB in 1 dB steps. Ex­factory the setting is 0 dB. The scale display in the online menu is moved.
Clipping limit at 0 dB + selected headroom!
The OPTICODEC has a sample rate converter at the audio input and output. For the external synchronization of the digital output you can select between:
DISABLED Word clock is generated from the ISDN
transmission clock
DIGITAL IN Word clock is generated from the AES or S/PDIF
input signal
SYNC IN Word clock is taken over from SYNC IN.
This function serves to set the display background lighting of the connected unit:
ALWAYS ON background lighting is always on
ON CONNECT the background lighting switches on
once a connection has been established or when the ‘System Setup’ or ‘Data Input’ menus have been called up. The lighting switches off shortly after returning to the main menu.
When ‘Auto connect after power up’ check box is activated, the unit automatically begins establishing a connection once it has been switched on. The configuration used here is set up using the ‘Config’ key.
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Backup Settings
In the 'Backup Settings' mode you can allocate an entry of the ISDN directory to each input port of the Alarm/Control Interface.
To do this, you must select the requested input port. Press the ‘Cfg’ (Configuration) key to allocate an ISDN number to this input port.
This ISDN number complies in all parameters to the re­spective entry in the ISDN directory.
In the following example, the entries IN1 to IN 4 for back­up are utilised.
The entries IN5 to IN8 have not been allocated and are transmitted transparently to the opposite side. A feedback to confirm whether connection has been established takes place over the respective outputs of the Alarm/Control Interface. When, for example, a connection has been established with IN2, the output OUT2 is activated once the connection has been established and the decoder has been synchronised.
Further information on applications of Backup Settings can be found on page 75.
X.21 Clock Monitoring
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To do this the ‘No X.21 clock’ must be activated. Enter with the corresponding Cfg button, the ISDN number of the partner unit which should be dialed in case of error. The desired configuration is also entered.
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OPTICODEC E 47
OPTICODEC PC Remote
System Setup
When the unit is in the X.21 mode and the X.21 clock fails, the unit returns to the main menu and the ISDN connection is then established.
As soon as the X.21 clock is active again, the ISDN connection is disconnected and the unit returns to the X.21 mode.
T1: Time, how long the X.21 mode must fail before the
ISDN connection is established.
T2: Length of time for an ISDN connection to be estab-
lished.
T3: Time, how long the X.21 clock must again be active
before the ISDN connection is again disconnected.
T4: Length of time for ISDN connection and change into
X.21 mode.
Times: T1 T2 T3 T4 (sec.) 2 5-30 5 1-2
For the settings when using OC Remote with the OC 7400, please see page 77.
As soon as a switching signal is applied to the corresponding input INx, the connection is established and continues until the switching signal is disconnected.
Mode: Level
X.21 clock OK
No X.21 clock
X.21 mode
No connection
ISDN connection
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Saving the Units
System Setup to Your
Harddisk
Loading System Setup
to a Unit
Similarly to that of the ISDN/IP directory (pls see page
30), there is alternatively the possibility to save the system configuration of the OPTICODEC onto your PC harddisk for archive purposes, for example.
Use the ‘Save System Setup to Disk’ feature to store the unit specific *.CFG data file in a folder of your choice.
By using the ‘Load System Setup to Unit’ feature, the system configuration already stored on your PC can be loaded onto the OPTICODEC units.
Locate the *.CFG data to be loaded and press the 'Open' key.
Any number of OPTICODEC units can easily be con­figured with identical ‘System Setup’ settings using this procedure.

Default Configuration

Warning
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With this menu item all previous configurations are reset to those ex-factory.
After the safety query, confirm with the ‘OK’ key should the default procedure be carried out or use ‘Cancel’ should you wish to cancel the command to default.
This process can not be reversed after confirmation!
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OPTICODEC E 49
The respective connection can be established quickly and easily. A pre-requisite for the connection establishment is the correct initializing of the OC Remote software with the connected OPTICODEC. This is confirmed with the ‘Standby’ status message in the program screen.
Select the ‘Connect’ key from the main menu or choose alternative the 'Unit/Connect'. pulldown menu.
The present ISDN/IP directory appears.
Assigned to each entry you will find the name of your connection partner, the ISDN number, IP address or target address, the selected audio parameters as well as the sync mode of your partner unit.
OPTICODEC PC Remote

Connect

Connect
Establishing a
Connection Using the
ISDN/IP Directory
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Establishing Connection
Select your ISDN connection partner from the list using the mouse. The selected connection partner is marked and displayed inverted. Press ‘Connect’ to confirm. The connection is now being established.
After successful synchronization, your OC Remote program displays the message ‘Connected’ and goes to the online menu. If the connection is rejected, the OPTICODEC dis­plays ‘Rejected’ and the reason for the rejection. Analyse the error message using the error codes listed in the appendix (pls. see page #44).
Establishing a
Connection Using the
Direct-Dial Buttons
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This type of connection is established via the four preprogrammed keys, located right from the display.
The transmission quality must first be determined. By pressing a key, you select between G.711 (3.1 kHz, telephone), G.722 (H.221 or SRT), Layer 2, Layer 3, AAC* or 4SB ADPCM* (*optional).
The entry menu then requests the ISDN number, target or IP address which is entered with the numeric keypad as usual.
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OPTICODEC E 51
The connection parameters for Layer 2 and Layer 3 are determined as follows: Only entry of the first ISDN number. 64 kbps, 48 kHz, Mono, User Data 1200 baud. For the entry of two ISDN numbers: 128 kbps, 48 kHz, Joint Stereo, User Data 1200 baud. The audio input used is taken from the Accept Configura­tion. The ISDN Sync used is always AUTO.
On switch-on or e.g. after a power outage, the OPTICODEC automatically establishes a connection provided that the ‘Auto connect after power up’ check box is activated and a target number or address has been allocated.
After the establishment of the connection and the exchange of the transmission parameters, the online transmission menu appears on the display.
It shows information about the send and receive levels, connection duration and the set headroom and synchro­nisation.
Note
Automatic
Connection Start

Connection Monitoring

OPTICODEC PC Remote
Connect
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In addition, together with the send (Tx) and receive con­figuration (Rx), the IP address / ISDN number (according to the connection type) of your codec partner are shown on the display.
$ Currency Icon
Sync Icon
Adjust
Audio Parameters
Adjust Audio Levels
After the establishment of an ISDN connection, in addition to the connection duration, the currency icon ($) is also activated. The actually incurred connection costs can only be displayed on an S0 from Deutsche Telekom after activation.
If the decoder of the connection partner receives the correct data, then this is confirmed by the Sync icon in the Rx path. The Sync icon is only available between OPTICODECs during Point-to-Point or ISDN connections in Layer 2 and Layer 3.
During a live connection, you can place a query without interrupting the line and change the audio parameter settings.
This function is available from the 'Unit/Audio Data Encoder‘ pulldown menu.
If a connection is made in 'Layer 2‘ or 'Layer 3‘ mode, you can toggle between these algorithms. The parameters bet­ween G.711, G.722 and 4SB ADPCM cannot be changed.
This menu item serves for setting the analog Input and Output levels for the left and right channels without inter­rupting the line.
Ex-factory the setting is +12 dBu, the headroom is 0 dB. This means: input level = output level = 12 dBu. With a mouse click on the ‘up’ and ‘down’ buttons the level value can be altered.
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OPTICODEC E 53
OPTICODEC PC Remote
Connect
Establishing a
Connection with X.21
Establishing a
Connection with
Codec Loop
Call Acceptance
with ISDN Sync AUTO
Establishing a
Connection with
ISDN Sync AUTO
Terminating the
Connection
From the Directory, select an entry with ‘X.21’ as the digit of the ISDN number.
From the Directory, select an entry without an ISDN num­ber. The connection is established via the Directory, 'Quick Dial' or 'Direct Dial Buttons'.
The function ‘AUTO’ (Automatic Detection of the calling Unit) is entered in the ‘System Setup / Accept Configuration’.
The function ‘ISDN Sync AUTO’ has priority over all other entries. This means if ‘AUTO’ is set and the OPTICODEC is called by any competitor codec, the OPTICODEC sets itself to the audio parameters incl. sync modes of the calling unit automatically. This might last up to 30 seconds.
The set parameters of the ‘System Setup / Accept Confi­guration’ are taken over if the OPTICODEC is called by an OPTICODEC.
When a connection partner is entered into the telephone directory, ISDN Sync and audio parameters can be preset in the configuration.
However, an entered ‘ISDN Sync AUTO’ has priority over all other settings. This means that if a connection has been established to a competitor unit, the OPTICODEC automatically adapts itself to the audio parameters incl. sync modes of the remote unit. This might last up to 30 sec.
An existing ISDN and Point-to-Point connection is ended by pressing the ‘Disconnect’ key. After disconnection, the message ‘REMOTE DISCONNECT’ appears on the display of your connection partner.
In the broadcast and multicast modes all connection partners, transmitters and receivers have to press the ‘Disconnect’ key to disconnect the link.
The OPTICODEC goes into standby mode and waits for further connection requests.
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54 E OPTICODEC
OPTICODEC 7400 Front Panel / Keypad
Graphical
Diplay Module
Explanation of
Keypad Symbols
The OPTICODEC 7400 is a fully duplex ISDN audio codec with an Ethernet interface for the remote control of the unit and the possibility to distribute audio over networks such as Intranet, ATM etc. Configuration and operation of the unit takes place using the numeric keypad and/or the control software OC Remote and NETControl.
Further information on the audio and data interfaces are found starting from page 12 of this manual.
with integrated LCD controller, 128 CG-ROM and display W x H x D: 180.0 x 65.0 x 12 mm Visible Range: 132.0 x 39.0 mm Display RAM: 8 kByte 240 (horizontal) x 64 (vertical) dots By 6 x 8 dots per letter: 40 letters x 8 lines, 64 columns
ISDN
OK ERR
OK
UP
DOWN
ENTER
indicates a correct or rejected connection of the OPTICODEC. Release by pressing ‘Hang Up’. Blinks when a software update is being carried out.
cursor moves upwards
cursor moves downwards
selected function is confirmed
Page 55
OPTICODEC E 55
0,1,2...9 / A,B,C...Z
QUICK DIAL
*
HANG UP
Cancel
OPTICODEC 7400
Front Panel / Keypad
G.711
Copy
G.722 PgUp
Layer 2
PgDn
Layer 3
Delete
activates the G.711 algorithm
copies a telephone number
cursor jumps to the left activates G.722 algorithm cursor jumps upwards to next page
cursors jumps to the right activates Layer 2 algorithm cursor jumps downwards to next page
activates Layer 3 algorithm deletes marked number or letter
Numerical keypad
contrast adjustment of display (available in standby only) number / alphabetic character input.

Assignment table:

Other special characters are attainable in certain input fields by using the UP and DOWN buttons.
connection establishment via quick dial
X for X.21 connections and possibly required for entry of sub-address
disconnection
cancels the last action
Key Character 1 1 . (point) / (space) 2 2 A B C 3 3 D E F 4 4 G H I 5 5 J K L 6 6 M N O (as ‘Otto’) 7 7 P Q R S 8 8 T U V 9 9 W X Y Z 0 0 , (comma) + (plus) - (minus)
Page 56
56 E OPTICODEC
After switching the unit on and after a short initializing sequence the 3 pages of the basic configuration menu of the OPTICODEC 7400 appears (see also „Status Messages“, page 82).
After selecting the menu ‘Data Input’ and confirming with the ‘Enter’ key, the directory for IP addresses, ISDN num­bers, names and audio configurations appears. Here a max. of 96 entries can be stored.
Choose a free position to enter a new connection partner or choose an already existing entry for a possible correction. Confirm with the ‘Enter’ button.
First choose the desired connection mode in the network. You can select between ISDN/X.21 or Ethernet.
OPTICODEC 7400 Data Input

Data Input

Enter New Recipient

Connection Mode
Page 57
OPTICODEC E 57
OPTICODEC 7400
Data Input
The option ‘ISDN/X.21’ must be selected in the line for connection type if an ISDN connection is required.
Depending on the number of ISDN modules, input fields between ISDN#1 and ISDN#4 are displayed.
Entries are made using the numerical keypad. These may have a maximum of 22 digits. Correct and erase entries using the DEL button and move between ISDN input fields using the ‘Enter’ button.
The ISDN Sync option is available once an ISDN number has been entered.
The ‘ISDN Sync’ menu serves for selecting the codec of your connection partner. The possible Sync modes are:
MusicTAXI (MusicTAXI Sync for 1 to 4 B-channels) PRIMA (CCS Sync for 2 B-channels) ZEPHYR (Telos Sync for 2 B-channels) AETA (for 4SB ADPCM algorithm; optional) NO SYNC when using 1 B-channel NO SYNC (INV) when using 1 B-channel AUTO - Automatic Audio Codec Detection
The release of the AETA sync and the 4SB ADPCM al­gorithm (not contained in the standard scope of delivery) takes place via the 'OC Remote' or 'NETControl' software and depends on the unit model and its serial number. Each unit receives a unique key code (pls. see page 20).
For information on the Zephyr, CDQ Prima and AETA Hifiscoop pre-settings please see the chapter 'Audio com­patibility via ISDN' on the data medium included in the delivery scope.
ISDN Connection
ISDN Number
Note
ISDN Sync
Page 58
58 E OPTICODEC
In this menu you can determine all audio parameters for the planned connection.
This menu leads you through settings for Algorithm (Layer II, Layer III, G.711, G.722 and optionally 4SB ADPCM), Bitrate and up to User Data. Do not forget to correctly define the audio input: AES/EBU for digital units in professional format, S/PDIF for digital units in consumer format, ANALOG for analog units. Leave the menu with ‘Exit’.
Once the ISDN number and audio parameters have been entered, a name with up 7 digits can be assigned to the recipient (see page 55).
Using the digital keypad and the left-right arrow buttons enter the input. ‘Enter’ confirms your entry and exits this menu item.
By pressing the ‘Enter’ button the settings made in the ISDN/IP directory are saved and the 'Data Input' menu item is exited.
OPTICODEC 7400 Data Input
Audio Data Encoder
Shortname
Store & Exit
Page 59
OPTICODEC E 59
OPTICODEC 7400
Data Input
Should an Ethernet connection be selected, you can then set the desired IP connection.
The following connenction modes are possible:
A bi-directional connection between two units. TCP is utilised as the protocol, possible transmission errors are corrected to a certain degree by this protocol. These entries are marked with an “X” in the Sync column of the directory.
The unit functions as a transmitter for broadcast or multi­cast transmissions. UDP is utilised as the protocol, possible transmission errors can not be corrected. In this mode, the unit transmits to one or more receivers. Bidirectional UDP connections are possible when both units are set to TRANSMIT. Marked with “T” in the directory.
Here the unit functions as a receiver for broadcast or multicast transmissions. This setting is the opposite of TRANSMIT. Marked with “R” in the directory.
Return to the ‘Data Input’ menu item by using the ‘Exit’ feature.
Changes in a connection result in the automatic alternation between the ISDN number entry and the IP address in the third line.
IP Connection
Point-to-Point
Transmit
Receive
IP Address
Page 60
60 E OPTICODEC
OPTICODEC 7400 Data Input
Here you enter the IP addresses for the desired connec­tion. The addresses to be entered are dependent on the desired transmission protocol:
POINT-TO-POINT mode: The local IP address of the partner unit is to be entered.
For TRANSMIT and RECEIVE it is to be distinguished whether a broadcast or a multicast transmission is desired.
A broadcast address must be entered for the unit set to TRANSMIT (for e.g. position #5 in the directory). The unit set to RECEIVE dials the address of the partner unit. This is the address of the unit set to TRANSMIT.
Here the same address has to be dialed from both the TRANSMIT and RECEIVE units. This has to be a mul­ticast address found in the number range from 224.0.0.0 to 239.255.255.255 (for e.g. position #6 in the directory:
234.0.0.0)
Applications and further descriptions are found up to p. 28.
Identical to the ISDN connections described, here the audio parameters for an intended connection can be specified.
Here the shortname of a partner audio codec can be entered with a maximum length of 7 characters for easier identification.
This feature stores the entries made in the ISDN/IP directory and exits the ‘Data Input’ menu item.
Broadcast
Multicast
Audio Data Encoder
Shortname
Store & Exit
Page 61
OPTICODEC E 61
OPTICODEC 7400

System Setup

By pressing the UP/DOWN buttons, select System Setup from the main menu and confirm with the ‘Enter’ button.
This sets up the call accept mode of the OPTICODEC. First you can set the accept mode Audio Data Encoder for the unit and transmission more or less specific and perma­nently. Then the unit only accepts calls in the respective configuration. Or you can select the operation mode AUTO (Automatic Codec Detection). Then the OPTICODEC serves as a ‘slave’ and takes over the parameters of the calling unit automatically.
The ‘AUTO’ mode is not available for ‘Audio Input’ and ‘Userdata’.
The 'Algorithm' menu item serves for setting the desired data reduction procedure. You can select between: Layer 2, Layer 3, 4SB ADPCM* (*optional) and AUTO (G.711/G.722 calls are also accepted).
The 'ISDN Sync' menu serves for setting the desired syn­chronization procedure.
System Setup
Accept
Configuration
Algorithm
ISDN Sync
Page 62
62 E OPTICODEC
OPTICODEC 7400 System Setup
The possible Sync modes are: MusicTAXI (MusicTAXI Sync for 1 to 4 B-channels) PRIMA (CCS Sync for 2 B-channels) ZEPHYR (Telos Sync for 2 B-channels) AETA (for 4SB ADPCM algorithm; optional) NO SYNC when using 1 B-channel NO SYNC (INV) when using 1 B-channel AUTO - Automatic Audio Codec Detection
The release of the AETA sync and the 4SB ADPCM al­gorithm (not contained in the standard scope of delivery) takes place via the 'OC Remote' or 'NETControl' software and depends on the unit model and its serial number. Each unit receives a unique key code.
If a sync other than ‘MusicTAXI’ or ‘AUTO’ is preset, G.722 calls cannot be received.
The ‘Samplingrate’ menu item serves for setting the desired sampling frequency when calls are coming in. You can se­lect between: 16, 22.05, 24, 32, 44.1, 48 kHz and AUTO (the sampling frequency of the calling unit is taken over).
The menu item ‘Audio Mode’ serves for setting the desired channel mode, when calls are coming in. You can select between Mono, Dual Mono, Stereo, Joint Stereo and AUTO (pls. s. page 27).
The menu item ‘Audio Input’ serves for setting the desired audio input, when calls are coming in. You can select between: Analog, AES/EBU and S/PDIF.
The menu item ‘Userdata’ serves for setting the desired ancillary data, when calls are coming in. You can select between: OFF (no ancillary data are transmitted) 1200, 2400, 4800 baud in Layer 2 1200, 2400, 4800, 9600 baud in Layer 3.
If the transmission of ancillary data is switched off (OFF), the alarm control signals are not transmitted either.
From OPTICODEC to OPTICODEC, the lowest preset baud rate of the ancillary data is agreed within the unit handshake.
Warning
Samplingrate
Audio Mode
Audio Input
Userdata
Note
Page 63
OPTICODEC E 63
OPTICODEC 7400
System Setup
ISDN
Configuration
ISDN Protocol
ISDN Interface
Local Numbers
Note
The OPTICODEC has several ISDN D-channel protocols. Please make sure that you have selected the correct pro­tocol. Decisive is the ISDN protocol of your connection, not the one of the partner unit! Alter the settings by pressing the 'Enter' key.
In this menu option the S0 and U interfaces to be used for the transmission are selected. The function is only avai­lable if IMD4 modules are installed in the OPTICODEC. Possible settings are: S0 PMP (Point-to-Multipoint), S0 PP (Point-to-Point) and U PMP (Point-to-Multipoint) (pls. see page 42.)
The ISDN numbers which are entered here, are sent to the ISDN network when the connection has been established. On certain ISDN networks [e.g. Private Branch Exchange (PBX)*] the extension number has to be entered.
Should a local number be required, then all entry fields have to be occupied.
S0 without PBX* S0 on PBX*
1 x unit only
can remain vacant
or
ISDN number
without area code
can remain vacant
or
only the No. of
your extension
n x units
ISDN number
without area code
and
MSN Check
activated
only the No. of
your extension
and
MSN Check
activated
(Test Calle d Number)
Page 64
64 E OPTICODEC
OPTICODEC 7400 System Setup
The SPID numbers entered here are also sent when a connection is being established. This is necessary only when operating on USA or Canadian networks. The identification number input and allocation takes places as described in “Local Numbers”.
Here the number of dialing attempts between 1 and 5 can be selected.
This menu items serves for setting the desired time between dialing attempts (between 10 and 60 seconds).
If an existing connection is interrupted not by the dialing OPTICODEC, but by possible ISDN problems, then here you can define the number of redialing attempts between 0 and 5.
Under certain conditions (e.g. private branch exchange PBX), a number that prefixes the ISDN number for dial-up via ISDN can be entered here. To make an outside call from a telephone system, for instance, enter 0.
A preselection number can also be entered here. The number max not exceed five digits.
Using the 'Min. length for PBX Prefix‘ menu option, define the minimum number of digits an ISDN number must have to allow this prefix to be set before the number.
If, for example, internal extension numbers have three digits, a 4 should be entered here.
To continue to enable internal calls, PBX dialling codes for ISDN numbers with less than four digits are ignored.
SPID Numbers
Dialing
Dialing Attempts
Dialing Delay
Redialing Attempts
PBX Prefix
Min. length for
PBX Prefix
Page 65
OPTICODEC E 65
The menu item 'Incoming Calls' defines the behavior of the OPTICODEC during operation on a S0 connection together with other units.
First set 'Accept Telephone Calls' to: ALWAYS every telephone call is accepted NEVER all telephone calls are rejected ASK manual confirmation of each call is requested
by the unit.
With the menu item 'Accept MPEG/G.722 Calls' the behavior for incoming MPEG/G.722 calls is determined. The setting options are described above.
The 'Test Called Number‘ menu option activates the MSN query for incoming calls. This requires the correct MSNs of the individual connection to be entered into the ‘Local Numbers’ menu item. The call is only accepted if the two numbers are identical. On Euro-ISDN, the MSN is usually the ISDN number of the connection without the dialling code, but for PBXs it is usually the extension number only. The ‘YES’ option should only be activated if, in addition to the OPTICODEC, other devices (e.g. a telephone, fax machine, PC card) must also be operated on the same ISDN connection.
These settings concern incoming calls for OC. This setting is required only for those ISDN systems that do not automatically add the ISDN number. The minimum number length applies here too. For direct S0 connections with Euro-ISDN, the leading zeros in the ISDN numbers are not transferred for incoming calls, e.g. 7141226622. This can be corrected by means of the following entries.
If a 0 is entered for national calls, this is added here. The same applies for international calls, where 00 is to be entered in Germany. When these digits are entered, the ISDN number required to make the call will actually be displayed.
Incoming Calls
Accept
Telephone Calls
Accept
MPEG/G.722 Calls
Test Called Number
Number Prefix
(for incoming calls)
OPTICODEC 7400
System Setup
Page 66
66 E OPTICODEC
OPTICODEC 7400 System Setup
TCP (Transmission Control Protocol) is one of the most important protocol specifications of the network protocols. TCP is a connection-oriented protocol and provides a re­liable, byte stream service.
This menu item determines the basic settings of the OP­TICODEC for operation in the network. The settings are subdivided into three areas:
General Settings LOCAL IP ADDRESS SUBNET MASK DEFAULT GATEWAY
Settings for Remote Control REMOTE CONTROL
Settings for Audio Transmission AUDIO TRANSMISSION
Enter the IP address of your OPTICODEC into the input mask. Please note that each connection in the network requires a separate and unique IP address.
TCP/IP
Configuration
Local IP Address
Page 67
OPTICODEC E 67
OPTICODEC 7400
System Setup
Should an address be allocated twice, the following error message appears:
abc.def.ghi.jkl is the own IP address which is currently set and xx is a counter which displays the seconds to go before the automatic restart.
With ‘Enter’, the menu to enter the local IP address appears. After entering the address, the unit is restarted. With ‘Hang Up’ the unit restarts without changing the IP address.
The unit restarts automatically after 60 seconds should no button be operated. The IP address will not be chan­ged.
The 'Subnet Mask' is utilised to divide the network into sub-networks and herewith splits the amount of data ex­change into several channels.
The Subnet mask is, just as the IP addresses, a binary 32-bit value and is provided by your network administrator. The number 255.255.255.0 is normally entered for Class C networks.
Subnet Mask
Page 68
68 E OPTICODEC
OPTICODEC 7400 System Setup
The data exchange between the different cross points of the network is transparent for the user. The IP-stack recognizes whether a data packet is scheduled for another network and will then address the default gateway. This corresponds for e.g. with a router or other gateway units.
0.0.0.0 must be entered if the default gateway should not be used.
Only when using the NETControl software: Should the Local IP Address and/or Subnet Mask be changed so that the unit and the PC running the NETControl program are then situated in different networks, then this PC no longer has access to the unit.
You will be informed of the IP Address, Subnet Mask and Default Gateway by your network administrator.
The settings for the remote control of the unit over the network are found in the menu item 'Remote Control'. Enter the name of your OPTICODEC and the port numbers here.
This is for the easier identification of units within the network. Enter the name of your OPTICODEC with a maximum of 7 digits. This name is conveyed to the remote control program (for e.g. NETControl) and is displayed in its list of units.
When the name of a unit has been changed and confirmed with ‘OK’, the unit will disappear from the unit list in the remote control program for several seconds. The unit reappears under the new name.
Default Gateway
Warning
Remote Control
Name
Page 69
OPTICODEC E 69
OPTICODEC 7400
System Setup
Port
Auto Detect
Audio Transmission
Buffer Management
An important part of the TCP/IP model are the port numbers, also known as socket numbers. With these ports, it is advised which service is desired (pls. s. ‘Port’ on page 38).
The value 6137 should always be entered for the OPTICODEC.
This function is for the automatic recognition of units using a control software (for e.g. NETControl) and can only be used in a local area network. This function should remain disabled to control units outside of the network area
The settings for audio transmission over the network are found in this menu.
This buffer serves as a bridge for short-term interruptions during transmission. The size of the buffer (which stores the audio data) can be influenced.
For the most reliable transmission, the maximum value (bar to the far right) should be set. This results, however, in a greater delay.
The bar can be adjusted further to the left should a lower delay be important but this negatively influences the trans­mission reliability.
Page 70
70 E OPTICODEC
OPTICODEC 7400 System Setup
To achieve the highest possible transmission reliability with a low delay, it should be ensured that no further units are simultaneous transmitting data within the network.
Here the port number for audio transmission is entered. Always enter the value 6136 for the OPTICODEC.
This encoder configuration is taken over when the OPTI­CODEC is called by another OPTICODEC in the mode Point-to-Point. It may be possible to use: For Tx Layer 2, 384 kbps, 48 kHz, dual mono; for Rx Layer 3, 32 kbps, 16 kHz, mono. As opposed to the corresponding menu to call via ISDN, here no automation is possible.
Dialing Attempts
This menu item serves for setting the desired dialing attempts. You can select between 1 ... 5 and INFINITE.
Dialing Delay
This menu items serves for setting the desired time between dialing attempts (between 10 and 360 seconds).
Redialing Attempts
This menu item serves for setting the desired redialing attempts, if a connection had not been disconnected by the calling OPTICODEC. You can select between 0 ... 9 and INFINITE.
Not all data transmission applications have the same priority and not all of these require the same high standards for the transfer of data. In order to minimize or avoid the risk of data network congestion, a so-called „Quality of Service“ of QoS option has been implemented in the IP header with acknowledgement fields such as Time to Live, Protocol and Header Checksum.
Port
Accept Configuration
Audio Data Encoder
Dialing
Quality of Service
Page 71
OPTICODEC E 71
OPTICODEC 7400
System Setup
QoS (when the router has been configured accordingly) actively regulates traffic in the net and utilises the available bandwidth both intelligently and effectively on the basis of data priority and bandwidth reservation.
TOS (Type of Service) or DiffServ (Differentiated Service Architecture) are the key mechanisms of QoS and are responsible for the assessment of packet priority.
The TOS bits contain information on the ways and means of how a datagramm should be handled by a router. An overloaded router can, for example, on the basis of the TOS field determine which packets are less important (and can therefore be cancelled) and which packets must essentially be forwarded.
DiffServ utilises a new definition of the IPv4 TOS header field and the IPv6 traffic class header field. The objective of DiffServ is the subdivision of data traffic into service classes of different priorities without using costly signaling on each router. Each packet can be labelled and then handled and transmitted according to its labelling.
Each Per-Hop-Behavior (PHB) stream is determined by a DSCP. You can select between: Default („Best Effort“), Class Selector (1-7), Assured Forwarding (11-13, 21-23, 31-33, 41-43) und Expedited Forwarding.
Further details and specifications can be found under the „Request of Comments“ lists (RFC1349 TOS; RFC2474 DiffServ) available online in Internet (www.rfc-editor.org) and accessible for all users.
Type
TOS
Precedence Values
TOS Values
DiffServ
DiffServ Codepoints
(DSCP)
Note
Precedence Significance Precedence Significance 000 Normal 011 Flash
010 Priority 100 Flash Override 010 Immediate 101 Critical
TOS Significance TOS Significance 0000 Normal 0010 max. Reliability 1000 min. Delay 0001 min. Monetary Cost 0100 max. Throughtput
Page 72
72 E OPTICODEC
OPTICODEC 7400 System Setup
This menu item allows the adjustment of the level range: 50 or 80 dB.
This menu item serves for setting the desired headroom. You can select between 0 and 20 dB steps. Ex-factory the setting is 0 dB. The scale display in the online menu is moved.
Clipping limit is at 0 dB + selected headroom!
This menu item serves for setting the analog INPUT and OUTPUT level for the left and right channels. Ex-factory the levels are set at +12 dBu, the headroom is 0 dB.
This means: input level = output level = 12 dBu.
PgUp and PgDn selects the respective channels. With the UP and DOWN keys the respective level values are adjusted in 0.5 dB steps.
Confirm your settings with 'Enter'.

Audio Levels

Level Range
Headroom
Warning
Adjust I/O Levels
Page 73
OPTICODEC E 73
OPTICODEC 7400
System Setup
The OPTICODEC has a sample rate converter at the audio input and output.
For the external SYNChronization of the digital output you can select between: DISABLED Word clock is generated from the transmission
clock
DIGITAL IN Word clock is generated from the AES or
S/PDIF input signal
SYNC IN Word clock is taken from the SYNC IN
Should the signals be switched off, the Alarm/Control In­terface will behave as described on page #14. Otherwise you can select between:
CON The signal is set at Pin 19, as soon asthe
decoder is SYNChronized – i.e. when the connection is ‘OK’.
DIS The signal is set at pin 18, if the line had
been disconnected from the partner unit or due to an ISDN failure
CON+DIS Both signals are set.
An entry from the ISDN Directory can be allocated to each input of the Alarm/Control Interface in the backup settings.
This is done by selecting the respective input with the cursor and confirming with the ‘Enter’ button. A square cursor now blinks and a number can be entered using the digital keypad.

Interfaces

External Sync Input
Alarm Signals
Backup Settings
Page 74
74 E OPTICODEC
OPTICODEC 7400 System Setup
This number corresponds directly in all parameters with the entry in the ISDN directory. After entering the number, you have to confirm your setting by pressing the ‘Enter’ button. If you enter only one digit for the number, the OP­TICODEC will automatically add a 0 before the digit.
Entering ‘00’ means you can only use this port for trans­parent contact closure information (on/off), not for ISDN calls.
Timing diagram:
T1=300 ms T2=500 ms
If the length of the switching signal is less than T1 or T2, the signal is ignored.
In the following example the alarm/control ports IN1 to IN4 correspond to the entries 90 to 93 of the ISDN directory.
The ports IN5 to IN8 are configured with 00 and can be used for transparent switching information.
A confirming signal of whether a connection has been established, takes places over the corresponding outputs of the Alarm/Control Interface. By using IN2 for establishing a connection, OUT2 (pin 23) will confirm the connection as soon as the decoder is synchronized.
The inputs must be always confirmed with ‘Store & Exit’.
Page 75
OPTICODEC E 75
OPTICODEC 7400
System Setup
Assuming the satellite receiver can indicate an opto­decoupled error message, you can connect this information to the alarm/control interface. If the error message is ON, the OPTICODEC will automatically establish an ISDN connection to the relevant entry number. If the error message signal is OFF, the OPTICODEC will disconnect an existing ISDN connection.
Up to 8 individually configured connection partners can be called by using switches. The audio parameters and connection relevant information are programmed in the ‘Data Input’ menu. A LED connected to the corresponding OUTPUT of the alarm/control interface will light up indi­cating that an ISDN connection has been established and that the decoder is in SYNC.
If the switch has been opened, the ISDN connection will be disconnected.
When switching on the unit or for e.g. after a power fai­lure, the OPTICODEC automatically begins establishing a connection provided the following has been set up in the ISDN telephone directory:
Select ‘Data Input’ in the main menu and confirm using the ‘Enter’ button. The input mask of the ISDN directory appears.
Applications by Using
Backup Settings:
Satellite/ISDN Redundcy
‘Panic Dial’
Automatic
Connection Start
Page 76
76 E OPTICODEC
OPTICODEC 7400 System Setup
Under entry number 96, enter an “X”, an ISDN number or an IP address and AUTOCON as the name (SHORTNAME). Also set up the desired configuration under AUDIO DATA ENCODER. Confirm your entry with EXIT using the ‘Enter’ button.
When operating the OPTICODEC via X.21 on a satellite modem or leased line, you can configure the OPTICODEC in such a way that the unit will establish an ISDN connection should the X.21 clock fail.
This is done by entering the ISDN position number of the partner unit to be dialled in case of a failure. Enter the number in the line “NO X.21 CLOCK” in the backup settings. These position numbers are listed in the ISDN directory. The desired configuration must also be defined. Enter “X” instead of an ISDN number (using the ‘Quick Dial’ button) in any one of the empty fields of the ISDN directory.
Save your entry with ‘Store & Exit’ and leave this menu item. As soon as the X.21 clock is active again, the ISDN connection is disconnected and the unit returns to the X.21 mode.
X.21 Clock Monitoring
X.21 clock OK No X.21 clock X.21 mode No connection ISDN connection
Page 77
OPTICODEC E 77
OPTICODEC 7400
System Setup
Backlight

Base Configuration

Warning
T1: Time, how long the X.21 mode must fail before the
ISDN connection is established.
T2: Length of time for an ISDN connection to be
established.
T3: Time, how long the X.21 clock must again be active
before the ISDN connection is again disconnected.
T4: Length of time for ISDN disconnection and change
into X.21 mode. Times: T1 T2 T3 T4 (sec.) 2 5-30 5 1-2
When using OC Remote with the OPTICODEC 7400, please observe the following:
Backup IN1 replaces entry 87 in the no. list. Backup IN2 88 Backup IN3 89 Backup IN4 90 Backup IN5 91 Backup IN6 92 Backup IN7 93 Backup IN8 94 No X.21 clock 95 X.21 autostart 96
This function serves to set the display background lighting of the connected unit: ALWAYS ON background lighting is always on ON CONNECT the background lighting switches on once
a connection has been established or when the ‘System Setup’ or ‘Data Input’ menus have been called up. The lighting switches off shortly after returning to the main menu.
In this menu option all previously entered configurations are reset to the ex-factory settings (Reset Configuration). All ISDN/ IP directory entries are also deleted (Delete Database).
This process can not be reversed after confirmation!
After the safety query confirm the deletion procedure with the DEL button or press ‘Hang Up’ to cancel.
Page 78
78 E OPTICODEC
OPTICODEC 7400 Connect
The respective connection can be established quickly and easily. Select ‘Connect’ from the main menu and press ‘En­ter’ to confirm. The directory for IP addresses and ISDN numbers with 96 entries appears. For connection establishment you can decide between a connection via the ISDN/IP directory, quick dialing or manual input with the numeric keypad.
1 Entry position number in directory; 2 Shortname; 3 ISDN Number or IP Address; 4 Set Samplingrate; 5 Audio Modes: M=Mono, D=Dual Mono, S=Stereo, J=Joint Stereo; 6 Set Bitrate; 7 Algorithm: L3=Layer 3, L2=Layer 2 4S=4SB ADPCM, G7=G.722, Telephone receiver icon=G.711; 8 ISDN Sync: M=MusicTAXI, P=Prima, Z=Zephyr, H=H.221, S=SRT, A=Auto; 8e Types of IP connections: X=Point-to-Point, T=Transmit, R=Receive
Each entry displays the abbreviated name of your connec­tion partner, the IP address, the ISDN number, the selected audio parameters as well as the set connection type.
Select ‘Connect’ from the main menu and press ‘Enter’ to confirm. Select a connenction partner from the ISDN Di­rectory and press ‘Enter’ again to confirm.
The OPTICODEC informs you permanently on the present transactions.

Connect

Explanation of the
Display Lettering
Establishing a
Connection Using the
ISDN/IP Directory
ISDN Connection
1 2 3 4 5 6 7 8 8e
Page 79
OPTICODEC E 79
OPTICODEC 7400
Connect
After successful synchronization, your OPTICODEC displays the message ‘ISDN OK’ and goes to the online menu.
If the connection is rejected, the OPTICODEC displays ERR(OR) and the reason for rejection. Check the error reports using the error codes listed in the appendix, starting page 83.
As mentioned before, for TRANSMIT and RECEIVE it is to be distinguished whether a broadcast or a multicast transmission is desired. Select your connection partner from the list.
The connection is now being established. After a brief initialising sequence, the online menu of the OPTICODEC appears.
After successful synchronization (only in Point-to-Point mode) your OPTICODEC displays the message ‘SYNC OK’ and goes to the online menu. If the connection is rejected, the report ‘CALL REJECTED’ and the reason for the rejection are displayed.
In the UDP mode this is different: this connectionless, datagram-oriented protocol sends the datagrams together with the destination addresses to the network, but there is no guarantee that they will ever reach their destination, this is why the online menu appears immediately. Before starting data transmission the connection partners must select the correct setting for TRANSMIT/RECEIVE. The desired application and type of protocol must also be determined.
The 96 entries can be selected via quick dial assignments. Press the ‘Quick Dial’ key.
The menu interrogates the entry number of your connection partner (from 01 to 96). Dialing takes place automatically with your previously adjusted parameters.
IP Connection
Establishing a
Connection Using the
Quick Dial Key
Page 80
80 E OPTICODEC
OPTICODEC 7400 Connect
Establishing a
Connection Using the
Direct Dial Keys
Note

Connection Monitoring

Currency Icon
First you have to determine the transmission mode. Via keypad you select between G.711 (3.1 kHz, telephone), G.722 (7kHz, H.221/SRT), Layer 2 and Layer 3.
The input menu asks for the ISDN number to be entered using the numeric keypad as usual. Dialing is initiated by pressing the ‘Enter’ key.
The connection parameters are determined as follows: When entering only one ISDN number: 64 kbps, 48 kHz, mono, user data 1200 baud. When entering two ISDN numbers: 128 kbps, 48 kHz, Joint Stereo, user data 1200 baud. The audio input is taken from the ‘Accept Configuration’. The used ISDN Sync is always ‘AUTO’. You can select between AUTO, H.221 and SRT for the G.722 mode.
You can easily monitor your audio transmission. After a connection has been established and the audio parame­ters have been exchanged, the online transmission menu is displayed.
It informs you of the send and receive levels, connection time as well as the set headroom. In addition to the trans­mit (Tx) and receive (Rx) configurations, the IP address or ISDN number of your connection partner is displayed.
Once an ISDN connection has been established, not only the connect time but also the $ icon for connection charges is displayed. The actual connection charges can only be displayed on an ISDN line of the German Telecom after being respectively activated.
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OPTICODEC 7400
Connect
Sync Icon
X.21 Connection
Establishment
Codec Loop Connection
Establishment

Connect Menu

Terminating a
Connection
The Sync symbol in the Rx path confirms that the decoder of your connection partner receives the correct data. The Sync symbol only appears for connections between OP­TICODECs 7200/7400 and only for Point-to-Point and ISDN connections in Layer 2 and Layer 3. During connections to other units or with other algorithms as well as during Broadcast/Multicast connections, this symbol is missing.
From the telephone directory select an entry with “X” as the ISDN number.
Select an entry without an ISDN number from the tele­phone directory. The connection is established either via telephone directory or quick dial.
If the ‘Enter’ key is pressed during a connection, the Con­nect Menu is displayed without line disconnection. It provides the following possibilities:
PREVIOUS MENU return to former display AUDIO DATA ENCODER alteration of audio parameters and
audio inputs
ADJUST I/O LEVEL alteration of INPUT/OUTPUT level
actuator
DISCONNECT disconnection
A Point-to-Point connection is ended by double-pressing the ‘‘Hang Up’’ button. Your connection partner sees the message: REMOTE DISCONNECT.
In the broadcast and multicast modes all connection part­ners, transmitters and receivers have to press the ‘‘Hang Up’’ button to disconnect the link. The ‘Hang Up’ button must be pressed again within 10 seconds (while the ‘Hang Up’ LED flashes), otherwise the command to disconnect will be ignored.
After disconnection the unit returns to the standby mode, awaiting the next connection command or incoming calls. If the OPTICODEC is called, it adapts itself automatically to the audio configuration of the calling unit. It does not matter whether the call is coming from a GSM mobile, a callbox or from a studio. The OPTICODEC reacts fully automatic and guarantees audio transmission.
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In the online menus of the OC Remote software and OPTI­CODEC 7400 the following messages may be displayed:
When the OPTICODEC is in standby mode, you can select from the main menu the following functions by entering certain number codes:
Audio loop without encoder/decoder. By pressing the ‘Enter’ key you can change the audio in­put to AES/EBU or S/PDIF. By pressing 1, 2 or 3 you can change the sampling frequency. By pressing HANG up, you leave the audio test.
By simultaneous operation of the keys 1+2+3 all LEDs on the keypad light up.
Interrogation of the OC 7400 software versions.
By pressing 3+6+9 simultaneously, reset will be started.
Number Codes
Audio Test (8+8+8+8+8)
LED Test (1+2+3)
9+9+9+9+9
Reset (3+6+9)
OPTICODEC Status Messages / Number Codes in Standby Mode

Status Messages

• NO X.21 CLOCK
• ILLEGAL X.21 CLK
• NO INPUT SIGNAL
• DSP TIMEOUT
• ISDN PIPELINE OVERFLOW
• REMOTE PIPELINE OWERFLOW
Possible Cause
No X.21 clock was determined.
The measured X.21 clock does not correspond to a ISO data rate.
The AES or SPDIF input has been set and there is no signal at the selected input.
On access to the DSPs there is no confirmation message.
ISDN operation is not possible.
The remote port does not respond.
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ISDN Error Messages

Error message Possible causes Checkpoint/
workaround
ISDN NOT RESPONDING The OPTICODEC could not establish a communication to the ISDN connection:
• ISDN cable not connected.
• Faulty ISDN cable.
• ISDN connection not in
operation.
• Both B-channels are
already being used by other devices on this connection.
Check the ISDN connection and
the cable, and try again.
CHANNEL UNACCEPTABLE
CALL IN AN ESTABLISHED CHANNEL
USER BUSY
NON-SELECTED USER
CLEARING
RESPONSE TO STATUS INQUIRY
The OPTICODEC could not establish a connection to the entered number:
• The remote device already has a connection („busy“).
• The ISDN number is incorrect.
• Check the entered ISDN number and/ or retry later.
UNALLOCATED NUMBER
NO ROUTE TO SPECIFIED
NETWORK
NO ROUTE TO DESTINATION
NUMBER CHANGED
DESTINATION OUT OF
ORDER
INVALID NUMBER FORMAT
FACILITY REJECTED
The OPTICODEC could not establish a connection to the entered ISDN number:
• The ISDN number is incorrect or does not exist.
• Check the entered ISDN number and try again.
NORMAL CALL CLEARING
NO USER RESPONDING
NO ANSWER FROM USER
CALL REJECTED
NORMAL, UNSPECIFIED
The OPTICODEC could not establish a connection to the entered ISDN number:
• The ISDN number is incorrect or does not exist.
• The addressed remote device is not switched on or is not connected.
• Check the ISDN number and try again.
• Check the status of the remote device and correct if necessary.
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ISDN Error Messages

Error message Possible causes Checkpoint/
workaround
• NO CHANNEL AVAILABLE
• NETWORK OUT OF ORDER
• TEMPORARY FAILURE
• SWITCHING EQUIPMENT CONGESTION
• ACCESS INFORMATION DISCARDED
• CHANNEL NOT AVAILABLE
• RESOURCES UNAVAILABLE
The cause is attributable to the ISDN, i.e. it is not possible for the ISDN network to establish the desired connection at the present time.
• No B-channels are currently free, since they are being used at the moment by other devices on this connection.
• The ISDN network is overloaded.
• Try again later.
• INTER. NETWORKING, UNSPECIFIED
This error message appears when switching between ISDN networks of different providers, e.g. from a private provider to Deutsche Telekom or on foreign connections.
• Try again later.
• INTERNAL TIMEOUT A timeout occurred in the device while establishing the connection.
• Check the ISDN connection, cable, numbers and protocol.
• QUALITY OF SERVICE UNAVAILABLE
• REQUESTED FACILITY NOT SUBSCRIBED
• BEARER CAPABILITY NOT AUTHORIZED
• BEARER CAPABILITY NOT AVAILABLE
• SERVICE OR OPTION NOT AVAILABLE
• BEARER CAPABILITY NOT IMPLEMENTED
• CHANNEL TYPE NOT IMPLEMENTED
• REQUESTED FACILITY
NOT IMPLEMENTED
• ONLY RESTICTED DIG. INFO AVAILABLE
• SERVICE OR OPTION NOT IMPLEMENTED
These error messages mean that a function required by the OPTICODEC is not supported by the ISDN network. Additional redial attempts will result in the same error.
• The set ISDN protocol is incorrect.
• Check the ISDN protocol. If it is set correctly, then you should establish a test connection in telephone mode to check the activa­ted services. If a connection can now be established, then the service „Data Transfer“ is not activated on the ISDN connec­tion of the dialing OPTICODEC. The service must be activated by your provider.
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ISDN Error Messages

Error message Possible causes Checkpoint/
workaround
• INVALID CALL REFERENCE VALUE
• IDENTIFIED CHANNEL DOES NOT EXIST
• CALL IDENTITY IN USE
• INCOMPATIBLE DESTINATION
• DEST. ADDRESS MISSING INCOMPLETE
• INVALID TRANSIT NETWORK SELECTION
• INVALID MESSAGE, UNSPECIFIED
• MANDATORY ELEMENT MISSING
• MESSAGE TYPE NOT IMPLEMENTED
• ILLEGAL MESSAGE
• INFORM. ELEMENT NOT IMPLEMENTED
• INVALID INFORMATION ELEMENT
• MESSAGE INCOMPATIBLE TO CALL STATE
• RECOVERY ON TIMER EXPIRY
• PROTOCOL ERROR, UNSPECIFIED
These error messages are generally caused by an in­correctly set ISDN protocol.
• Check the set ISDN protocol and try again.
• “ --- “
ONLY FOR US PROTOCOLS
The ISDN network did not report any error. The OC may possibly have termi­nated the corresponding B-channel itself or it was terminated by the remote device.
• Check the set ISDN protocol and try again.
• SPID REQUEST PENDING The querying of the SPID numbers for ISDN has not yet been answered.
• Check the SPID number and connection.
• SPID FAILED The SPID was rejected by the ISDN.
• Check the SPID number and con­nection.
• ILLEGAL SPID The SPID number entered is too short.
• SPID MISSING A US protocol was set, but no SPID number was entered.
• Enter the SPID and try again.
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Brief Lexicon Ethernet Error Messages
Error message Possible causes
• NETWORK IS DOWN Device not connected to the network.
• NETWORK IS UNREACHABLE Local IP address has duplicate allocation.
• HOST IS UNREACHABLE The desired IP address cannot be reached.
• NETWORK RESET Error on the network.
• CONNECTION RESET BY PEER
The remote device has terminated the connection.
• CONNECTION TIMED OUT The remote device is not reachable.
• CONNECTION REFUSED The connection was refused.
• HOST IS DOWN
The desired IP address cannot be reached at the current time.
Standardised Audio Compression Procedures (Algorithms)
• G.711 Standardised audio compression procedure for speech transmissions over ISDN. This algorithm requires 64 kbps bandwidth and supplies audio quality of up to
3.1 kHz ("telephone“).
• G.722 This algorithm requires a data rate of 64 kbps and
supplies audio quality of up to 7 kHz („radio quality“). With G.722, two synchronisation modes are available: SRT and H.221.
• 4SB ADPCM requires a data rate of 128 to 256 kbps (128 kbps per
audio channel) and supplies audio bandwidth of up to 15 kHz. Low delay over ISDN: < 6 ms.
• MPEG Layer 2 Data rate 32 - 384 kbps, sampling rate up to 48 kHz*
and supplies up to 20 kHz audio bandwidth.
• MPEG Layer 3 Data rate 8 - 320 kbps, sampling rate up to 48 kHz*
and supplies up to 20 kHz audio bandwidth.
*Delay and audio bandwidth are strongly dependent on the sampling rate and data rate.
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Technical Specifications
Size: 19“, (2U 7400 and 1U 7200), depth: 380 mm, temper.: -10 °C ... +45 °C, no fan necessary, relative humidity: 30 ... 90 %, Line voltage: 100 ... 240 V AC, 50/60 Hz, 0.375 ... 0.20 A, max. 25 VA, weight approx. 6 kg.
ISO/MPEG 11172-3 Layer II, ISO/MPEG 11172-3 Layer 3 (licenced from Fraunhofer IIS and Thomson), 4SB ADPCM (licenced from France Telecom), G.722 with H.221 and SRT, G.711.
Mono, Dual Mono, Stereo, Joint Stereo.
Ethernet: 32 ... 384 kbps ISDN: n x 64 kbps (n= 1 ... 4), X.21: 8 ... 384 kbps
16, 22.05, 24, 32, 44.1, 48 kHz.
0, 1200 - 9600 baud.
RS232/RS422 with 9600 baud, all functions can be operated remotely. Software download
Rx and Tx for 8 to 384 kbps
Bonding for OPTICODEC, channel splitting with 2 ISDN B­channels for Zephyr, CCS Sync with 2 ISDN B-channels for CDQPRIMA and CDQ2000, G.722/H.221 for AVT 7 kHz tele­phone, G.722/ SRT for 7 kHz Glensound and 7 kHz CCS and 7 kHz Zephyr.
Digital: AES/EBU according to IEC 958 professional format, S/PDIF according to IEC 958 consumer format, external clo­cking, sample rate converter at input and output. Analog input: 24 bits, adjustable level range from -4 to +21 dBu, impedance 10 kOhms / 600 Ohms, asymmetric atte­nuation (common mode rejection) 66 dB Analog output: 24 bits, adjustable level range from -4 to +21 dBu, impedance 50 Ohms, asymmetric voltage attenuation
40 dB according to IEC 268-2.
20 Hz - 20 kHz, +0.5/-1 dB. weighted: 80 dB, unweighted: 85 dB. (with a 20 kHz filter, to 5 kHz) at maximum level 0.06% (ratio) at 1 kHz >100 dB.
1,5 degrees.
All technical information may be subject to change without notice.
Mechanic
Algorithms
Audio Modes
Transmission Rates
Sampling Frequencies
Ancillary Data
PC Remote Control
X.21 Interface
Sync Modes
Audio Interfaces
Frequency Response
Signal-to-Noise Ratio
Distortion (THD+N)
Crosstalk Attenuation
Phase Error
Page 88
Delivery
Scope
OPTICODEC 7400 unit (incl. power supply cable, length: 2m)
ISDN cable (RJ45 type CAT5), length: 2 m)** Ethernet network cable (RJ45 type CAT5), length: 2 m)* PC connection cable (type: KB003, serial 9pole cable) user manual+CD-ROM: OC PC Remote and NETControl software
Versions
Order No.
OC7400/E/NET128
OC7400/E/NET256
OC7400/E/NET
OC7400/E/128 OC7400/E/256 OC7400/E/384
OC7400/X.21
Description: Full duplex audio codec (basic unit) with 1 x S0 and 1 x 10Base-T with 2 x S0 and 1 x 10Base-T with 10Base-T with 1 x S with 2 x S with 3 x S
0
0
0
without 10Base-T and S0 interfaces
Delivery
Scope
OPTICODEC 7200 unit (incl. power supply cable, length: 2m)
ISDN cable (RJ45 type CAT5), length:2 m)** PC connection cable (type: KB003, serial 9pole cable) user manual+ CD-ROM with OC PC Remote software *=only for units with 10Base-T interface; **=only for units with S
interface
0
Versions
Order No.
OC7200/E/128 OC7200/E/256 OC7200/E/384
OC7200/E/X.21
OC7200/E/NET
OC7200/E/NET128
OC7200/E/NET256
Description: Full duplex audio codec (basic unit) with 1 x S with 2 x S with 3 x S
0
0
0
without S0 interface with 1 x 10Base-T with 1 x S0 and 1 x 10Base-T with 2 x S0 and 1 x 10Base-T
Optional Accessories
OC/IMD4
OC/NET
Guarantee and
Maintenance
OPTICODEC
Test Number
Model Description
ISDN Update Kit ISDN extension for 2nd/3rd S0 connection Net Update Kit For the upgrade of those units without an
Ethernet extension. The NETControl can also be downloaded free of charge from
www.orban-europe.com
Unless otherwise stipulated, standard guarantee regulations are valid and applicable. Damages resulting from changes or improper repairs by the orderer or a third party are not covered by the guarantee. The OPTICODEC has no user-serviceable parts.
Call the ORBAN Europe GmbH ISDN test number +49 7141 22 66 22. Audio is permanently connected.
ORBAN Europe GmbH OPTICODEC V4.25_Engl. 23/10/007R013_NP/DF/Lo
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