AVT MAGIC TH2 User manual

MAGIC TH2
ISDN & POTS Telephone Hybrid
Hardware/Software Manual

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MAGIC TH2
ISDN & POTS Telephone Hybrid
Hardware/Software Manual
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A publication of:
AVT Audio Video Technologies GmbH
Nordostpark 12
D-90411 Nuernberg
Telephone [phone]
Telefax [phone]
Printed in Germany, February.2006
© AVT Audio Video Technologies GmbH
All rights reserved. Reproduction in
whole or in parts is prohibited without
previous written consent of Audio Video
Technologies GmbH.
Subject to change.
Release date: (02.06)

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Content
Content
INTRODUCTION 11
SAFETY 13
Introduction 13
General Safety Requirements 13
Conventions 14
1CONSTRUCTION15
2 SYSTEM DESCRIPTION 17
2.1 Functionality 17
3 PUTTING THE MAGIC TH2 TELEPHONE HYBRID INTO
OPERATION 19
3.1 Mounting 19
3.2 Connection to the mains voltage 19
3.3 Earthing of the system 20
3.4 Operating elements on the front side 20
3.5 Operating modes of the system 21
3.5.1 Analogue POTS operating mode 21
3.5.2 ISDN operating mode 23
4 OPERATION VIA DISPLAY AND KEYPAD 25
4.1 Basic configurations 25
4.1.1 Keypad lock 25
4.1.2 Operating mode selection: Analogue POTS or ISDN 25
4.1.3 Audio interface selection: Analogue or digital 26
4.1.4 PreTalk interface selection 26
4.2 Working with the MAGIC TH2 28
4.2.1 Call initiation 28
4.2.2 Status display - Operation during a connection 28
4.2.3 Dropping a connection 29
4.2.4 Accepting a call 29
4.2.5 B channel connections (only in ISDN mode) 29
4.3 Comfort functions 30
4.3.1 Redialling 30
4.3.2 Using the phone book 30

Content
4.3.3 Configuration management 31
4.3.4 Sending DTMF tones (Option) 32
4.3.5 Locking of lines 32
5 WINDOWS PC SOFTWARE 33
5.1 Hardware requirements 33
5.2 User Registration 33
5.3 Installing the Windows PC software 33
5.4 The MAGIC TH2 main window 35
5.4.1 Operating elements 36
5.4.1.1 Info key 36
5.4.1.2 Status keys: PRETALK (EXT. PHONE), HOLD, ON AIR, DROP 36
5.4.1.3 Level indicators and level regulator 37
5.4.1.4 Quick Dial keys 37
5.4.1.5 Numerical pad 37
5.4.1.6 Redialling 37
5.4.1.7 Phone book 38
5.5 Menu File 40
5.5.1 Submenu Exit 40
5.6 Menu Configuration 41
5.6.1 Submenu Configuration 41
5.6.1.1 Configuration 41
5.6.1.1.1 Line Interface 41
5.6.1.1.2 Signal Processing 44
5.6.1.1.3 HOLD Signal 47
5.6.1.1.4 Audio Monitoring 49
5.6.1.1.5 Equalizer 51
5.6.1.2 Basic Settings 52
5.6.1.2.1 General 52
5.6.1.2.2 Audio Interface 54
5.6.1.2.3 Quick Dial 56
5.6.1.2.4 Relay / TTL 57
5.6.1.2.5 Remote Control 62
5.6.1.3 Login 64
5.6.2 Submenu Presets 66
5.6.2.1 Manage Presets 66
5.6.2.2 Activation of a Preset 68
5.6.3 Submenu COM Port 69
5.6.4 Submenu DTMF Settings (Option) 70
5.7 Menu Administration 71
5.7.1 Submenu Registration 71
5.7.2 Submenu System Panel 73
5.7.3 Submenu Software Download 74
5.7.4 Submenu Factory Settings 75
5.8 Menu Extras 76

Content
5.8.1 Submenu Center Window 76
5.8.2 Submenu System Monitor 77
5.8.3 Submenu Import/Export 80
5.8.4 Submenu S0 Monitor (Option) 81
5.9 Menu Help 82
5.9.1 Submenu About MAGIC TH2 82
6 OPTION: MAGIC TH2 KEYPAD 83
6.1 LCD Display 84
6.2 Keypad Functions 86
7 OPTION: REMOTE CONTROL & ISDN MONITOR 89
7.1 Remote control of a MAGIC TH2 System 89
7.2 The integrated S0 Monitor 92
8 OPTION: DTMF TONE GENERATOR & ANALYSER 95
8.1 DTMF system functions 95
8.1.1 Sending DTMF tones via the front keypad 95
8.1.2 Sending DTMF tones via the MAGIC TH2 Keypad 95
8.1.3 DTMF call initiation via the Audio inputs 95
8.2 DTMF PC functions 96
A1 MENU STRUCTURE 99
A1.1 System Settings 100
A1.2 Operation Settings 101
A1.3 Presets 102
A1.4 Status information 103
A1.5 Login 104
A1.6 Names 105
A2 ERROR CORRECTION 107
A3 INTERFACES 108
A3.1 ISDN and analogue telephone interfaces 109
A3.1.1 S0 interface 109
A3.1.2 POTS interface 109
A3.1.3 Handset/Telephone interface 110
A3.2 Control Interface 111
A3.2.1 RS232 interface 111
A3.2.2 TTL/RELAY interface 111
A3.3 Audio interfaces 112
A3.3.1 Analogue Audio interface 112

Content
A3.3.2 Digital AES/EBU Audio interface 112
A3.4 Power supply interface 114
A4 TECHNICAL DATA MAGIC TH2 115
A5 TECHNICAL DATA MAGIC TH2 KEYPAD 118
A5.1 Keypad 118
A5.2 LCD Display 119
A5.3 Power supply: 119
A6 GENERAL 120
A6.1 Order numbers 120
A6.2 Scope of delivery 121
A6.3 Declaration of conformity 121
A7 SERVICE INFORMATION 122
A7.1 Software Updates 122
A7.2 Support 122
A7.3 Repairs 122
INDEX 123
DECLARATION OF CONFORMITY 129

PAGE 11
Introduction
INTRODUCTION
The MAGIC TH2 system allows the forwarding of telephone calls to analogue
and digital Audio interfaces.
The connection to the telephone network can be established either via an an-
alogue POTS interface or via ISDN.
To optimise the calling signal each caller line has implemented its own digital
Echo Canceller, an AGC (Automatic Gain Control) as well as an Expander.
The configuration of the system can be made via the Windows application in-
cluded in delivery or via the front keypad of the unit. Optionally, the MAGIC
TH2 Keypad is available for separate operation without a PC.
English
Deutsch
Menu
Select
System Settings
System Settings
Language
Sprache
Cap
Ok
Save Settings?
Yes
No
Operation Settings
Select
Line Mode
ISDN
ISDN Single Hybrid
POTS
Audio
Audio Settings
Audio Settings
Audio Input
Audio Output
Analogue
Digital
PRETALK Interface
No Device
Phone
Handset
Delete
Opts.
ON AIR
HOLD
PRETALK
Call Out...
Callin
Disconnect
Locked
Line
Ring Tone
Search

PAGE 12
Introduction
Names
New Entry
Edit
View
Delete Entry
Save as Quick dial
Presets
Load
New
Save
Delete Preset
Ring Tone
Signal Processing
Keypad 9600, none
Status Information
Login
Shift

PAGE 13
Safety
SAFETY
Introduction
The unit described has been designed to the latest technical parameters and
complies with all current national and international safety requirements. It
operates on a high level of reliability because of long-term experience in de-
velopment and constant and strict quality control in our company.
In case of normal operation the unit is safe.
However, some potential sources of danger for person, material and optimal
operation remain - especially if daily routine and technical errors coincide.
This manual therefore contains basic safety instructions that must be ob-
served during configuration and operation. It is essential that the user reads
this manual before the system is used and that a current version of the manual
is always kept close to the equipment.
General Safety Requirements
To keep the technically unavoidable residual risk as low as possible, it is ab-
solutely necessary to observe the following rules:
– Transport,storageandoperationoftheunitmustbeunder the permissible
conditions only.
– Installation, configuration and disassembly must be carried out only by
trained personnel on the basis of the respective documentation.
– The unit must be operated by competent and authorised users only.
– The unit must be operated in good working order only.
– Any conversions or alterations to the unit or to parts of the unit (including
software) must be carried out by trained personnel authorised by the man-
ufacturer.
Any conversions or alterations carried out by other persons lead to a com-
plete exemption of liability.
– Only specially qualified personnel is authorised to remove or override
safety measures, and to carry out the maintenance of the system.
– External software is used at one’s one risk. Use of external software can af-
fect the operation of the system.
– Use only tested and virus-free data carriers.

PAGE 14
Safety
Conventions
In this manual, the following conventions are used as text markers:
Accentuation: Product names or important terms
LCD Text : Labelling on the front display of the system
PC Text: Labelling in the PC software
TIP
The symbol TIP labels information which facilitates the operation of the sys-
tem in its daily use.
NOTICE
The symbol NOTICE labels general notes to observe.
ATTENTION The symbol ATTENTION labels very important advice that is absolutely to
observe. In case of non-observance disfunctions and even system errors are
possible.
!

PAGE 15
Construction
1 CONSTRUCTION
The functions of the MAGIC TH2 are implemented in a single unit. The sys-
tem is designed for mounting in a half 19" rack(1 U).
Optionally, a dual mounting kit is available (MAGIC TH2 DUAL 19“ Mount-
ing Kit ID: 800202) for installing two MAGIC TH2 systems next to each other.
FIG. 1 FRONT VIEW: MAGIC TH2 TELEPHONE HYBRID

PAGE 16
Construction

PAGE 17
System Description
2 SYSTEM DESCRIPTION
The functional elements of the system are pictured in Fig. 2.
FIG. 2 FUNCTIONAL ELEMENTS OF THE MAGIC TH2 TELEPHONE HYBRID
2.1 Functionality
The MAGIC TH2 system incorporates an analogue POTS interface as well as
an ISDN interface. The operating mode can be set with the help of a software.
If the ISDN telephone interface is used, two independent telephone hybrids
are available within one system (channel 1 and channel 2). If the analogue
POTS telephone interface is selected, only one line can be used.
The complete signal processing is taken over by a digital signal processor. In
this way the following functions are carried out:
– G.711 Audio encoding and decoding
–twoindependentEcho Cancellers for each line
–twoindependentAGCs (Automatic Gain Control)
–twoindependentExpanders (to suppress spurious signals)
– control of the complete system (Keypad, Display, Relay, TTL, RS232)
As ON AIR Audio interfaces (input/output) for the mixing unit two inde-
pendent analogue channels as well as a optional digital AES/EBU interface
are available. If the AES/EBU interface is selected (optional AES/EBU soft-
ware licence is necessary), both channels are multiplexed together (right/left
channel). The input as well as the output possesses a separate digital Sample
Rate Converter (SRC). For connection with an external clock a clock input and
a clock output are available.

PAGE 18
System Description
A separate PRETALK interface provides the possibility for Pre Talk. In the an-
alogue POTS operating mode a standard analogue telephone can be con-
nected to the system. Via this telephone the connection to the subscriber can
be established or a call can be accepted and the Pre Talk can be conducted.
Alternatively, instead of a telephone, a Telephone Handset/Headset (Options:
ID:800203/800204) can be connected. This has the advantage that it is possible
to switch between ON AIR and PRETALK anytime. With a connected tele-
phone this is only possible after the ’ignition’ (= caller is ON AIR) if it has not
been rung off.
In the ISDN operating mode only a telephone handset or a headset can be con-
nected. Using a telephone is not possible.
The configuration and operation can be carried out primarily via the front
keypad and the illuminated display.
The configuration and operation is especially comfortable via the MAGIC
TH2 Software (see CHAPTER 5) included in delivery, which communicates
with the system via the RS232 interface.
The most basic operating functions like accepting a call, dropping a connec-
tion and establishing a connection with a preprogrammed number can be car-
ried out via three programmable TTL contacts. Two relays are available for
status indication.
Optionally, the operation can be carried out via the MAGIC TH2 Keypad (see
CHAPTER 6) that can be connected to the RS232 interface instead of the PC
software.

PAGE 19
Putting into Operation
3 PUTTING THE MAGIC TH2 TELEPHONE
HYBRID INTO OPERATION
3.1 Mounting
With its dimensions (W ×H ×D) of 220 mm ×44,5 mm (1 U) ×220 mm the
MAGIC TH2 system can be either used as desktop device or mounted in a 19
inch rack. Corresponding 19“ mounting brackets are included in delivery.
Optionally, a mounting kit (ID: 800202) is available to implement two MAGIC
TH2 next to each other
1
.
When mounting the unit please keep in mind that the bending radius of the
cables is always greater than the minimum allowed value.
When the MAGIC TH2 Telephone Hybrid is installed, please make sure that
there is sufficient air ventilation: It is recommended to keep a spacing of ca. 3
cm from the openings. In general, the ambient temperature of the system
should be within the range of +5°C and +45°C. These limits are especially to
observe if the system is inserted in a rack. The systems works without venti-
lation.
During operation air humidity must range between 5% and 85%.
3.2 Connection to the mains voltage
The system can be operated with mains voltage in the range of 90 V and 253 V
via the external power supply adapter included in delivery. The mains fre-
quency can range from 45 Hz to 65 Hz. The maximum power consumption is
15W. The rack must be earthed according to the VDE Regulations. This can be
carried out via the earthing screw on the back side of the unit.
The unit does not have a circuit closer and a circuit breaker. After plugging in
the external power supply adapter the unit boots in a few seconds. In standby
mode the AVT logo is shown on the display.
1
In this way, you can also combine the TH2 with the products MAGIC DC7 and MAGIC AC1.
TIP
The system temperature can be indicated on the display ( Menu Status Infor-
mation
(see CHAPTER A1.4, Page 103))
ATTENTION Incorrect ambient temperature and humidity can cause functional defi-
ciencies.
Operation outside the threshold values indicated above leads to a loss of war-
ranty claim.
!

PAGE 20
Putting into Operation
3.3 Earthing of the system
For EMC reasons an earthing via the earthing screw of the system must be car-
ried out in either case.
3.4 Operating elements on the front side
The system has an illuminated graphical display with a resolution of 160 x 32
Pixels and 21 operating buttons.
On the right next to the display there are two softkeys whose current func-
tions are indicated on the display. Inthe middle there are two buttons for nav-
igation (selection upwards/downwards), two buttons for accepting/drop-
ping calls as well as an
OK button. The numerical pad supports in addition to
the numericals
0...9 also the ’ * ’and ’ # ’button. For entering text the numerical
pad can also be used as a normal keypad.
The operation is similar to standard mobile phones.
FIG. 3 OPERATING ELEMENTS ON THE FRONT SIDE
ATTENTION Earthing
A lacking earthing can cause functional deficiencies within the unit.
!
Softkeys Navigation
buttons
Initiate call/
Accept call Drop/
Lock Line/
Keypad for dialling/
Text entry
B Channel
Shift
( ISDN only)
Confirm
entry/
Graphical
display
Status window
Main Menu