AVT MAGIC Mounting instructions

MAGIC
ISDN Standard/Triple
Telephone Hybrid
Hardware/Software Manual

.

MAGIC
ISDN Standard/Triple
Telephone Hybrid
Hardware/Software Manual

.

A Publication of
AVT Audio Video Technologies GmbH
Nordostpark 12
D-90411 Nürnberg
Telephone [phone]
Telefax [phone]
Internet: http://www.avt-nbg.de
Email: [email protected]
Printed in Germany, April 2003
©AVT Audio Video Technologies GmbH
All rights reserved. Reproduction in
whole or in parts is prohibited without the
written consent of the copyright owner.
The information contained in this
publication is accurate to the best of AVT’
knowledge. However, AVT disclaims any
liability resulting from the use of this
information and reserves the right to
make changes without notice.
Release Date: Juli 2004

.

Content
1 CONSTRUCTION 15
2 SYSTEM DESCRIPTION 17
2.1 Functionality 17
3 PUTTING THE SYSTEM INTO OPERATION 19
3.1 Mounting 19
3.2 Connection to the mains supply 19
3.3 Alarm indication LEDs 20
3.4 Controls on the front side 20
3.5 Changing the fuse 20
3.6 Connecting the system 21
4 WINDOWS PC SOFTWARE 23
4.1 Hardware requirements 23
4.2 Connection to the PC 23
4.3 Operation of the system 24
4.4 Control elements of the windows PC software 24
4.5 Menu Configuration -> COM-Port 26
4.6 Menu File -> Exit 27
4.7 Menu Administration 28
4.7.1 Submenu System Panel 28
4.7.2 Submenu Software Download 28
4.8 Menu Help -> About Telephone Hybrid 30
4.9 Menu Configuration -> System 31
4.9.1 System configuration without keypad 32
4.9.2 System Configuration with Keypad 43
5 OPTION: MAGIC HYBRID KEYPAD 51
5.1 Working with the MAGIC Hybrid Keypad 52
5.2 LCD-Display 52
5.3 Function of the keypad. 54
5.4 Programming of the quick dial keys 55
5.5 Programming of the forwarding 56
A1 AUIDIO-INTERFACE ASSIGNMENT 57
A1.1 Assignment with an analogue input 58
A1.2 Assignment with a digital input 59

A2 INTERFACES 61
A2.1 S0 Interface 62
A2.2 RS232C-Interface 63
A2.3 TTL USER I/O Interface 63
A2.4 LSD (Keypad) Interface 64
A2.5 HSD (Relay) Interface 64
A2.6 Audio Interface 65
A2.7 Audio Interfaces on the optional AES/EBU/Analogue Module 65
A2.7.1 AES/EBU Audio Interface 65
A2.7.2 Analogue Audio Interfaces 66
A2.8 Receiver 66
A2.9 Extension Bus (internal data bus and control bus) 67
A3 TECHNICAL DATA 69
A4 TECHNICAL DATA MAGIC HYBRID KEYPAD 71
A4.1 Keypad 71
A4.2 LCD Display 72
A4.3 Mains power supply unit: 72
A5 GENERAL FACTS 73
A5.1 Ordering numbers 73
A5.2 Included in delivery 73
A5.3 Declaration of Conformity 73

PAGE 9
INTRODUCTION
The MAGIC ISDN Telephone Hybrid system enables the forwarding of tele-
phone calls to analogue or optional digital AES/EBU audio-interfaces. Since
the system is based on a modular construction it is possible to expand it as de-
sired. The Basic system supports the simultaneous Hybrid-function up to
three or four callers, as well as call forwarding to a selected number.
In contrast to previous systems, great emphasis was put on using as little ex-
ternal wiring as possible. The system is able to realise functions such as digital
mixing of callers, digital Mix Minus, Echo-Cancelling, AGCs etc.
System configuration is carried using a simple Windows Application. The op-
eration can either be done by this software or by the optional MAGIC Hybrid
Keypad.

PAGE 10

PAGE 11
SAFETY
Introduction
The unit described is designed to the latest technical parameters and complies
with all national and international safety requirements. It operates with a high
level of operational safety resulting from long development experience and
stringent quality control in our company.
In normal operation this equipment is safe.
There are, however, some potential sources of danger that cannot be com-
pletely eliminated.
This Operator Manual therefore contains basic safety instructions that must
be observed during system configuration and operation. The Operator Man-
ual must be read before the system is used and the current version of the doc-
ument must always be kept close to the equipment.
All safety instructions have a unifom appearance. This appearance is de-
scribed in detail in the following CHAPTER.
General safety requirements
In order to keep the technically unavoidable residual risk to a minimum it is
imperative to observe the following rules:
–Transport, storage and operation of the unit/system must be under the per-
missible conditions only.
–Installation, configuration and disassembly must be carried out only by
trained personnel and with reference to the respective documentation.
–The system must be operated by knowledgeable and authorised users only.
–The system must not be operated unless it is in good working order.
–Any conversions or alterations to the system or parts of the system (in-
cluding the software) must be carried out by qualified personnel from the
manufacturer or by expert personnel authorised by our company.
All alterations carried out by other persons lead to a complete exemption
from liability.
–The removal or disabling of safety measures, the correction of faults and
errors, and the maintenance of equipment must be carried out by specially
qualified personnel only.
–Non-system software is used at one’s own rsik. The use/installation of
non-system software can adversely affect the normal functioning of the
system.
– Only use tested and virus-free data carriers!

PAGE 12
Appereance of the safety instructions
All safety instructions include a signal word that classfies the danger and a
text block that contains descriptions of the type and cause of the danger, the
consequences of ignoring the safety instruction and the measures that can be
taken to minimise the danger. In some safety instructions, a warning symbol
is placed underneath the signal word (see TAB. 2, page 12)
Classification of danger
There are five classes of safety instructions: "danger“, "warning“, "caution“,
"notice“ and "important“. The classification is shown in the following table.
The signal word "Note“ is also used in the Operator Manual. Text passages
marked in this way do not describe a danger, but rather contain reminders,
tips and general information to ensure optimum operation of the system.
Symbols
The following symbols are used:
Signal word Type and cause of danger
Possible consequences of ignoring the safety instruction
Measures to minimise the danger.
TAB. 1 SIGNAL WORDS AND EFFECTS WHEN IGNORING THE SAFETY INSTRUCTIONS
Death Serious
injury
Minor
injury
Material damage
a
a damage to product or product environment
Fault
b
b considerable impairment to operation
c this danger class is not required for MAGIC ISDN Telephone Hybrid
definite likely possible definite likely possible definite likely possible definite likely possible definite likely possible
DANGER
c
WARNING
CAUTION
NOTICE
IMPORTANT
TAB. 2 WARNING SYMBOL
Symbol common usage
General warning about a danger
Important advice
signal word
result
!

PAGE 13
The safety instructions classified as „danger“, „warning“ and „caution“ al-
ways include a warning symbol. „Notice“ and „important“ safety instruc-
tions sometimes include a warning symbol.
Warning about a dangerous electrical voltage
TAB. 2 WARNING SYMBOL
Symbol common usage

PAGE 14

PAGE 15
Construction
1 CONSTRUCTION
The functions of the MAGIC ISDN Telephone Hybrid are included in a single
unit. The system has a 19" rack (1 HE).
The system can be expanded with the AES/EBU/Analogue Module when re-
quired. This module provides two additional analogue inputs/outputs as
well as two digital inputs/outputs (physically: one digital AES/EBU inter-
face).
FIG. 1 FRONT VIEW: MAGIC ISDN TELEPHONE HYBRID
POWER CONNECT ALARM
MAGIC ISDN TELEPHONE HYBRID
Control LEDs Handset socket
HANDSET
Made in Germany

PAGE 16
Construction

PAGE 17
System Description
2 SYSTEM DESCRIPTION
The block diagram of the system is shown in Fig. 2.
FIG. 2 THE BLOCK DIAGRAM OF THE MAGIC ISDN TELEPHONE HYBRID
2.1 Functionality
Via the Telephone Hybrid system three or four callers pre selected can go On
Air simultaneously. Additionally there is a call forwarding function to fixed
numbers. The signal receivedby the caller can either be from the analogue au-
dio interface or from the handset. The caller’s signal is always available at the
handset or and simultaneously at the audio-interface.
For each of the maximum of four callers, a digital Echo Canceller is available.
This Echo Canceller is necessary to suppress disturbing echo when normal
analogue telephones are used by the caller.
Likewise, the Automatic Gain Control (AGC) can be turned on for each caller.
To suppress disturbing noise of callers who are currently not speaking, the
Expander can be activated.
In the conference mode there is the possibility of mixing all callers digitally
and connecting the mixed signal to one interface. The callers get the digitally
generated Mix Minus signal.
Three relays (HSD interface) are available for external signalling. The follow-
ing conditions can be displayed:
– at least one caller is ON AIR
– at least one caller is in PRE TALK
2 x S
0
Line-
interfaces
HSD (Relay)
TTL USER I/O
RS232C
ISDN Module
Audio (CMD)
Standard
Audio-
interfaces
DSP
Handset
AES/EBU
Module
AES/EBU
Line 1
Line 2
Analogue
Line 1
Line 2
- Echo Canceller
- N-1, AGC
- Digital mixing
ANALOGUE
Audio codec
- Analogue Audio
- G.711 Codec
(Optional)
LSD (Keypad)
basic-construction

PAGE 18
System Description
– at least one B-Channel has an incoming call
The configuration is realised by the included Windows Software. Control can
also be carried out by this software. In parallel to the operating software the
MAGIC Hybrid Keypad can be connected as an option. This keypad with an
illuminated display, makes easy operation of the system possible. The record-
ing level for each caller shown on the display, provides immediate informa-
tion about the volume of the incoming signals.
An optional AES/EBU/Analogue Module is available which expands the sys-
tem by two further analogue or two digital AES/EBU inputs/outputs (swit-
chable). Then for example, the PRE TALK and ON AIR functions can be used
simultaneously.

PAGE 19
Putting the system into operation
3 PUTTING THE SYSTEM INTO OPERATION
3.1 Mounting
With its dimensions (W ×H ×D) of 439 mm ×44,5 mm (1 HE) ×300 mm the
MAGIC ISDN Telephone Hybrid can be operated as a table-top device or be
inserted into 19’’ racks. Additionally, mounting brackets are provided for the
installation into an ETSI rack.
During the installation care should be taken to ensure that the bending radius
of the cables is always greater than the minimum allowed value.
If the MAGIC ISDN Telephone Hybrid is installed in a rack, it should be en-
sured that sufficient ventilation is provided. It is recommended that approx.
3 cm clearance is left next to the openings. As a rule, the ambient temperature
of the system should not lie outside the range +5°C to +40°C. These limits are
of particular importance if the system is inserted in a rack.
During operation, the humidity must lie between 5% and 85%.
3.2 Connection to the mains supply
The system can be operated with a system voltage between 90 V and 253 V
and a mains frequency between 45 Hz and 65 Hz. The power consumption
has a maximum value of approximately 35 W. In accordance with safety reg-
ulations, the housing must be earthed (grounded). This earthing is usually re-
alised via the protective (earth or ground) conductor of the mains cable. If the
mains cable does not have a protective conductor, however, the device must
be earthed via the earthing bolt.
After switching the system on, the green POWER LED should light up. An in-
ternal reset is then triggered. When the ALARM LED stops blinking the sys-
tem is ready for operation (approx. 45 seconds).
NOTICE Incorrect ambient temperature and humidity can lead to equipment fail-
ure.
Operation of the unit outside the above limits invalidates the warranty.
The operation of the system must therefore lie within the specified limits.
WARNING Dangerous voltage in case of wrong earthing!
If the earthing is defective or lacking, hazardous voltages can be present on
the housing in the event of a fault.
Do not use extension cable without an earthing contact!
In case of doubt provide additional earthing!
!

PAGE 20
Putting the system into operation
3.3 Alarm indication LEDs
The MAGIC ISDN Telephone Hybrid has three LEDs for signalling.
(1) POWER green
Lights up when system is ready for operation (only +5V).
(2) CONNECT green
Lights up if at least one telephone connection is established.
(3) ALARM red
Lights up if a fault has occurred in the unit. The Windows PC software
provides more detailed information about the error (see page 25).
3.4 Controls on the front side
The system has no controls on the front side; there is only a socket for the
handset (not included in the delivery).
3.5 Changing the fuse
The mains system is protected with help of a fuse, which is soldered into the
power supply. Only expert personnel are allowed to change the fuse.
WARNING Dangerous voltage when the equipment is opened!
The unit should only be repaired by experienced technicians or our expert
personnel.