Taiden HCS-5300 User manual

HCS-5300 Digital Infra-red Wireless Conference System
Excellent solutions for conferences
Installation and Operating Manual
V1.3

Remark:
All rights reserved for translation, reprint or reproduction
Contents may change without prior announcement
All technical specifications are guideline data and not guaranteed features
We are not responsible for any damage caused by improper use of this manual
The equipment must be connected to earth!
This product conforms to the rules of the European directive 2004/108/EC.
To protect your hearing avoid high pressure level on earphones. Adjust to a lower and convenient level.
If any detailed information needed, please contact your local agent or TAIDEN service center in your region.
Any feedback, advice and suggestion about the products is appreciated
TAIDEN is the registered trademark of TAIDEN Co., Ltd.
I

Important Safety Instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in
accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators,
heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
9. Do not bypass the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug
has two blades and a third grounding prong. The wide
blade and the third prong are provided for your safety. If
the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the
manufacturer.
12. Do not leave the battery near the fire or under an
environment over 60 ºC (such as under direct sunlight
in the car), otherwise it may damage the protection
circuit of the battery and cause fire, explosion, leakage
or heat generation.
13. Unplug this apparatus during lightning storms or when
unused for long periods of time.
14. Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or
plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has been
exposed to rain or moisture, does not operate normally,
or has been dropped.
15. Do not place the equipment on any uneven or unstable
stand; original product package or appropriate package
should be used to avoid damage caused by strong
impacts during transportation.
16. Power supply cords:
America, Japan: AC 110 V-120 V 60 Hz
Asia, Europe: AC 220 V-240 V 50 Hz
17. The quantity of connected transceivers in one system
should not exceed prescribed quantity. For service,
please contact the nearest TAIDEN Service Center.
18. All TAIDEN products are guaranteed for 3 years
excluding the following cases:
A. All damage or malfunction caused by human
negligence;
B. Damage or malfunction caused by improper
operating by operator;
C. Parts damage or loss caused by disassembling the
product by non-authorized personnel.
19. Use ONLY specified connection cable to connect the
system equipment.
20. Upon receipt of the product, please fill out the Warranty
Card enclosed and post it to TAIDEN Service Center
nearby in your region.
CAUTION: To reduce the risk of electric shock,
DO NOT open covers, no useable serviceable
parts inside. Refer servicing to qualified service
personnel only.
This label appears on the rear of the unit due to space limitations
The lightning flash with an arrowhead symbol, with
an equilateral triangle, is intended to alert the user to
the presence of uninsulated ‘dangerous voltage’
within the products enclosure that may be of
sufficient magnitude to constitute a risk of electric
shock to persons.
The exclamation mark within an equilateral triangle is
intended to alert the user to the presence of
important operating and maintenance (servicing)
instructions in the literature accompanying the
appliance.
WARNING: These apparatuses shall not be
exposed to dripping or splashing and no
objects filled with liquids, such as vases
shall be placed on the apparatus.
WARNING: To reduce the risk of fire or
electric shock, DO NOT expose units to rain
or moisture.
II

Important Safety Instructions
Attention: Installation should be performed by
qualified service personnel only in accordance
with the National Electrical or applicable local
codes.
Power Disconnect: Units with or without ON – OFF
switch have power supplied to the unit whenever the
power cord is inserted into the power source;
however, the unit is operational only when the ON –
OFF switch is in the ON position. The power cord is
the main power disconnect for all units
WARNING: The apparatus should be
connected to a mains socket outlet with a
protective earthing connection.
III

Lithium battery safety precautions
To change battery please power off and take off the battery immediately.
Keep the battery away from heat sources to prevent fire or explosion.
Do not use a battery that is leaking, deformed, discolored or overheats.
Take extra precautions to keep a leaking battery from fire.
Do not use a battery that emits odor or smoke.
Do not solder, disassemble, puncture or deform the battery, otherwise, it may damage the protection circuit of the
battery and cause fire, leakage or explosion.
Do not short-circuit the positive and negative electrode with wire or other metal objects, otherwise it may cause fire,
explosion, leakage or heat generation.
Do not store or transport the battery with metal objects (such as necklace or hair grip), otherwise it may cause fire,
explosion, leakage or heat generation.
Do not heat the battery or throw it into fire, otherwise it may damage the safety valve or the protection circuit of the
battery and may cause fire or explosion.
Do not put the battery in the water or moisten the electrode of the battery, otherwise it may corrode the battery and
cause fire, explosion, leakage or heat generation.
Be careful to put the battery into the charging case with correct electrode position, otherwise it may cause fire,
explosion, leakage or heat generation.
Do not leave the battery near the fire or under an environment over 60 ºC (such as in the car from direct sunlight),
otherwise it may damage the protection circuit of the battery and cause fire, explosion, leakage or heat generation.
Please charge the battery with the dedicated base plate, using other charging unit may cause fire, explosion,
leakage or heat generation.
Please use the battery in assigned unit, otherwise it may cause fire, explosion, leakage or heat generation.
Do not drop or shock the battery, otherwise it may damage the protection circuit of the battery and cause fire,
explosion, leakage or heat generation.
If battery contents get into eyes it may cause blurred vision. DO NOT rub. Rinse with clear water immediately and
consult a doctor.
If the battery leaks onto skin or clothing, wash the area immediately with clean water to avoid skin injury and fabric
damage.
It will result in low battery and may damage the battery if the battery is not used for a long time. Please take off the
battery, and fully charge the battery for every three months.
IV

V
Contents
Installation & User Guide........................................................................................................ VIII
Chapter 1 System introduction ...................................................................................................1
1.1 Overview .............................................................................................................................................................1
1.2 Functions and features........................................................................................................................................4
1.3 System technology ..............................................................................................................................................5
1.3.1 Basic system concept..................................................................................................................................................5
1.3.2 IR radiation..................................................................................................................................................................5
1.3.3 Carriers and channels .................................................................................................................................................5
1.4 Aspects of infrared signal transmission...............................................................................................................6
1.4.1 Ambient lighting...........................................................................................................................................................6
1.4.2 Objects, surfaces and reflections ................................................................................................................................6
1.4.3 Infrared service area of digital infrared wireless conference unit.................................................................................7
1.4.4 Infrared service area of digital infrared transceiver......................................................................................................8
1.4.5 Overlap and multipath effects......................................................................................................................................9
Chapter 2 Digital IR Wireless Conference System Main Unit ................................................... 10
2.1 Overview ...........................................................................................................................................................10
2.2 Functions and indications..................................................................................................................................11
2.3 Installation .........................................................................................................................................................13
2.4 Connection ........................................................................................................................................................14
2.4.1 To interpretation devices ...........................................................................................................................................14
2.4.2 To other auxiliary devices..........................................................................................................................................15
2.4.3 System connection [Wireless discussion + 1+3 CHs digital simultaneous interpretation + voting + video tracking...16
2.4.4 System Connection [Wireless discussion + 1+3 CHs digital simultaneous interpretation + video tracking + central
control] ...............................................................................................................................................................................17
2.4.5 System Connection [Wireless discussion + video tracking + central control] ............................................................19
2.5 Menu structure ..................................................................................................................................................21
2.6 Configuration and operation..............................................................................................................................22
2.6.1 System Status ...........................................................................................................................................................23
2.6.2 Simultaneous Interpretation.......................................................................................................................................23
2.6.3 Line in 2 Setting.........................................................................................................................................................26
2.6.4 Downlink Audio Bass Setting.....................................................................................................................................26
2.6.5 Downlink Audio Treble Setting...................................................................................................................................26
2.6.8 Ring Setting...............................................................................................................................................................27
2.6.9 Set Chairman Priority Mode ......................................................................................................................................27
2.6.10 Microphone Parameters Setting ..............................................................................................................................27
2.6.11 Microphone Auto Off Setting....................................................................................................................................28
2.6.12 Carrier Use Sequence Setting.................................................................................................................................28
2.6.13 Language ................................................................................................................................................................28
2.6.14 Network Setting.......................................................................................................................................................28
2.6.15 Time Setting ............................................................................................................................................................29
2.6.16 Video Tracking Setting ............................................................................................................................................29
2.6.17 System Test.............................................................................................................................................................29

2.6.18 About .......................................................................................................................................................................29
2.6.19 Volume Control........................................................................................................................................................30
2.6.20 Connecting to PC ....................................................................................................................................................30
Chapter 3 Digital infrared transceiver and receiver ..................................................................31
3.1 Overview ...........................................................................................................................................................31
3.2 Functions and indications..................................................................................................................................32
3.2.1 Digital infrared transceiver.........................................................................................................................................32
3.2.2 Digital infrared receiver .............................................................................................................................................33
3.3 Infrared service area .........................................................................................................................................34
3.4 Position planning ...............................................................................................................................................36
3.4.1 Precautions in planning the digital infrared transceiver/receiver................................................................................36
3.4.2 Planning digital infrared transceiver ..........................................................................................................................38
3.4.3 Planning the path from main unit to transceiver ........................................................................................................41
3.5 Installation .........................................................................................................................................................43
3.5.1 Installation of HCS-5300TD.......................................................................................................................................43
3.5.2 Installation of HCS-5300TDB ....................................................................................................................................47
3.5.3 Installation of HCS-5300TDS ....................................................................................................................................48
3.6 Connecting to main unit.....................................................................................................................................50
Chapter 4 Digital infrared wireless conference unit ..................................................................51
4.1 Overview ...........................................................................................................................................................51
4.2 Functions and indicating....................................................................................................................................52
4.2.1 Digital IR Wireless Conference Unit ..........................................................................................................................52
4.2.2 Portable Digital IR Transmitter (HCS-5300HS needed).............................................................................................55
4.3 Infrared service area .........................................................................................................................................56
4.4 Precautions in using ..........................................................................................................................................58
4.5 Operation...........................................................................................................................................................59
4.5.1 The operation of delegate unit...................................................................................................................................59
4.5.2 The operation of chairman unit..................................................................................................................................60
Chapter 5 Accessories .............................................................................................................61
5.1 Digital IR Conference Room Switcher...............................................................................................................61
5.1.1 Functions and indications..........................................................................................................................................61
5.1.2 Connection ................................................................................................................................................................62
5.1.3 Configuration and operation ......................................................................................................................................63
5.2 Accessories .......................................................................................................................................................64
5.2.1 HCS-5300BAT Lithium battery ..................................................................................................................................64
5.2.2 HCS-5300HT-BAT Lithium battery.............................................................................................................................64
5.3 Charging device ................................................................................................................................................65
5.3.1 HCS-5300CHG/08 Charging Unit..............................................................................................................................65
5.3.2 HCS-5300HT Digital IR Transmitter Charging Base..................................................................................................65
5.4 Power Adapter...................................................................................................................................................65
5.5 Dedicated extension cable for digital infrared transceiver ................................................................................66
5.6 Tripod ................................................................................................................................................................66
5.7 Earphones .........................................................................................................................................................67
Chapter 6 Fault diagnosis ........................................................................................................ 68
VI

VII
6.1 Digital infrared wireless conference unit ....................................................................................................................68
6.2 Digital infrared wireless main unit ..............................................................................................................................69
6.3 Charging Unit.............................................................................................................................................................69
Chapter 7 Technical data.......................................................................................................... 70
7.1 System specification ..................................................................................................................................................70
7.2 Digital infrared wireless main unit ..............................................................................................................................71
7.3 Digital infrared transceiver .........................................................................................................................................72
7.3.1 Digital infrared transceiver.........................................................................................................................................72
7.3.2 Digital infrared receiver .............................................................................................................................................73
7.4 Digital infrared wireless conference unit ....................................................................................................................74
7.4.1 Digital infrared wireless conference unit....................................................................................................................74
7.4.2 Digital IR wireless transmitter and headset ...............................................................................................................76
7.5 Digital IR Conference Room Switcher .......................................................................................................................77
7.6 Lithium battery ...........................................................................................................................................................77
7.7 Charging Device ........................................................................................................................................................78
7.8 Power adapter ...........................................................................................................................................................78
7.9 Distributor ..................................................................................................................................................................79
7.10 Dedicated extension cable.......................................................................................................................................79
7.11 Tripod.......................................................................................................................................................................79
7.12 Earphones ...............................................................................................................................................................80
7.13 Connection details ...................................................................................................................................................80
7.14 Display language list................................................................................................................................................81
Product index ........................................................................................................................... 82

Installation & User Guide
About this manual
This manual is a comprehensive guide to the
installation and operation of TAIDEN HCS-5300 digital
infrared wireless conference system. It includes the
detailed description of the function and interface of the
HCS-5300 system components, system connection
and installation, system set-up and operation.
The manual is divided into the following chapters:
Chapter 1: Introduction
Introduction to the HCS-5300 system, as well as
introducing the user into structure, technical principle,
and aspects of system planning.
Chapter 2: Digital infrared wireless conference
main unit
Detailed description of functions, connection,
configuration and operation of digital infrared wireless
conference main unit.
Chapter 3: Digital infrared transceiver and
receiver
Detailed description of functions, position planning,
installation and connection of digital infrared
transceiver and receiver.
Chapter 4: Digital infrared wireless unit
Detailed description of functions and operation of
digital infrared wireless conference unit.
Chapter 5: Peripheral equipment and
accessories
Detailed description of peripheral equipment and
accessories for Digital IR Conference Room Switcher,
batteries, charging devices, power adapter and
earphones.
Chapter 6: Fault diagnosis
Trouble-shooting guide for simple faults.
Chapter 7: Technical data
Mechanical and electrical details of the complete
HCS-5300 equipment.
VIII

Installation & User Guide
IX
This manual is applicable to:
Digital IR Wireless Conference System Main
Unit
HCS-5300MA/20
Digital IR Wireless Conference System Main Unit
(discussion, voting, 1+3 CHs)
HCS-5300MB/20
Digital IR Wireless Conference System Main Unit
(discussion, 1+3 CHs)
HCS-5300MC/20
Digital IR Wireless Conference System Main Unit
(discussion)
Digital Infrared Transceiver
HCS-5300TD-W
Digital Infrared Transceiver (ceiling, wall or
tripod-mounted, excl. tripod when ordered, wide-angle)
HCS-5300TD-N
Digital Infrared Transceiver (ceiling, wall or
tripod-mounted, excl. tripod when ordered)
HCS-5300TDB
Digital Infrared Transceiver (tripod-mounted, excl.
tripod when ordered)
HCS-5300TDS-W
Digital Infrared Transceiver (suspension, wide-angle)
HCS-5300TDS-N
Digital Infrared Transceiver (suspension)
Digital Infrared Receiver
HCS-5300RA
Digital Infrared Receiver (suspension)
HCS-5300RB
Digital Infrared Receiver (ceiling, wall or tripod-
mounted, excl. tripod when ordered)
Digital IR Wireless Conference Unit
HCS-5300C
Digital IR Wireless Chairman Unit (5 voting keys, 1+3
CHs, Chinese panel)
HCS-5300CE
Digital IR Wireless Chairman Unit (5 voting keys, 1+3
CHs, English panel)
HCS-5300D
Digital IR Wireless Delegate Unit (5 voting keys, 1+3
CHs, Chinese panel)
HCS-5300DE
Digital IR Wireless Delegate Unit (5 voting keys, 1+3
CHs, English panel)
HCS-5301D
Digital IR Wireless Delegate Unit (1+3 CHs, 2 channel
selectors, dual ID)
HCS-5302C
Digital IR Wireless Chairman Unit (discussion)
HCS-5302D
Digital IR Wireless Chairman Unit (discussion)
HCS-5300HS
Digital IR Wireless Headset
HCS-5300HT
Portable Digital IR Transmitter
Mounting Suspension
HCS-5300TDP-05
Mounting Suspension for Digital Infrared Transceiver
(0.5 m)
HCS-5300TDP-10
Mounting Suspension for Digital Infrared Transceiver
(1.0 m)
HCS-5300TDP-20
Mounting Suspension for Digital Infrared Transceiver
(2.0 m)
Digital IR Conference Room Switcher
HCS-5300MX Digital IR Conference Room Switcher
Distributor
HCS-5352
Cable Splitter (1 input & 4 outputs, for HCS-5300 series
transceiver)
HCS-5352R
Cable Splitter (1 input & 4 outputs, for HCS-5300 series
receiver)

Installation & User Guide
Lithium Rechargeable Battery Pack
HCS-5300BAT
Lithium Rechargeable Battery Pack (for HCS-5300
series conference unit)
HCS-5300HT-BAT
Lithium Rechargeable Battery Pack (for HCS-5300HT
portable digital IR transmitter)
Charging Device
HCS-5300CHG/08 Charging Unit (8 pcs/case)
HCS-5300HT/CHG Digital IR Receiver Charging Base
Power Adapter
HCS-ADP15V Power Adapter (DC 15 V, 2.2 A)
Dedicated Cable
CBL5300-05 5 m Dedicated Transceiver Cable
CBL5300-10 10 m Dedicated Transceiver Cable
CBL5300-20 20 m Dedicated Transceiver Cable
CBL5300-50 50 m Dedicated Transceiver Cable
CBL5304-05 5 m Dedicated Receiver Cable
CBL5304-10 10 m Dedicated Receiver Cable
CBL5304-20 20 m Dedicated Receiver Cable
CBL5304-50 50 m Dedicated Receiver Cable
Tripod
HCS-5300TZJ Tripod
Earphones
EP-820AS
Single Earphone (TRS connector, Ring: NC)
EP-820BS
Single Earphone (TRS connector, Ring: NC)
EP-828
Single Earphone (TRS connector, Ring: NC, built-in
mechanical switch)
EP-920BS Earbuds (stereo)
HCS-5100PA Headphone
HCS-5100PB Headphone
X

Chapter 1 System introduction
1.1 Overview
TAIDEN HCS-5300 series product is a digital infrared
wireless conference system convenient for mobile use
as well as for permanent installations. The flexibility of
the wireless chairman and delegate units allows easy
arrangements of various conferences.
The system consists of one digital infrared wireless
conference main unit, one or more digital infrared
transceivers and up to 1000 digital infrared wireless
conference units.
Figure 1.1 System overview
1

The system is composed of one or more of the
following:
Digital IR Wireless Conference System Main
Unit
HCS-5300MA/20
Digital IR Wireless Conference System Main Unit
(discussion, voting, 1+3 CHs)
HCS-5300MB/20
Digital IR Wireless Conference System Main Unit
(discussion, 1+3 CHs)
HCS-5300MC/20
Digital IR Wireless Conference System Main Unit
(discussion)
Digital Infrared Transceiver
HCS-5300TD-W
Digital Infrared Transceiver (ceiling, wall or
tripod-mounted, excl. tripod when ordered, wide-angle)
HCS-5300TD-N
Digital Infrared Transceiver (ceiling, wall or
tripod-mounted, excl. tripod when ordered)
HCS-5300TDB
Digital Infrared Transceiver (tripod-mounted, excl.
tripod when ordered)
HCS-5300TDS-W
Digital Infrared Transceiver (suspension, wide-angle)
HCS-5300TDS-N
Digital Infrared Transceiver (suspension)
Digital Infrared Receiver
HCS-5300RA
Digital Infrared Receiver (suspension)
HCS-5300RB
Digital Infrared Receiver (ceiling, wall or tripod-
mounted, excl. tripod when ordered)
Digital IR Wireless Conference unit
HCS-5300C
Digital IR Wireless Chairman Unit (5 voting keys, 1+3
CHs, Chinese panel)
HCS-5300CE
Digital IR Wireless Chairman Unit (5 voting keys, 1+3
CHs, English panel)
HCS-5300D
Digital IR Wireless Delegate Unit (5 voting keys, 1+3
CHs, Chinese panel)
HCS-5300DE
Digital IR Wireless Delegate Unit (5 voting keys, 1+3
CHs, English panel)
HCS-5301D
Digital IR Wireless Delegate Unit (1+3 CHs, 2 channel
selectors, dual ID)
HCS-5302C
Digital IR Wireless Chairman Unit (discussion)
HCS-5302D
Digital IR Wireless Chairman Unit (discussion)
HCS-5300HS
Digital IR Wireless Headset
HCS-5300HT
Portable Digital IR Transmitter
Mounting Suspension
HCS-5300TDP-05
Mounting Suspension for Digital Infrared Transceiver
(0.5 m)
HCS-5300TDP-10
Mounting Suspension for Digital Infrared Transceiver
(1.0 m)
HCS-5300TDP-20
Mounting Suspension for Digital Infrared Transceiver
(2.0 m)
Digital IR Conference Room Switcher
HCS-5300MX Digital IR Conference Room Switcher
Distributor
HCS-5352
Cable Splitter (1 input & 4 outputs, for HCS-5300 series
transceiver)
HCS-5352R
Cable Splitter (1 input & 4 outputs, for HCS-5300 series
receiver)
Lithium Rechargeable Battery Pack
HCS-5300BAT
Lithium Rechargeable Battery Pack (for HCS-5300
series conference unit)
2

HCS-5300HT-BAT
Lithium Rechargeable Battery Pack (for HCS-5300HT
portable digital IR transmitter)
Charging Device
HCS-5300CHG/08 Charging Unit (8 pcs/case)
HCS-5300HT/CHG Digital IR Receiver Charging Base
Power Adapter
HCS-ADP15V Power Adapter (DC 15 V, 2.2 A)
Dedicated Cable
CBL5300-05 5 m Dedicated Transceiver Cable
CBL5300-10 10 m Dedicated Transceiver Cable
CBL5300-20 20 m Dedicated Transceiver Cable
CBL5300-50 50 m Dedicated Transceiver Cable
CBL5304-05 5 m Dedicated Receiver Cable
CBL5304-10 10 m Dedicated Receiver Cable
CBL5304-20 20 m Dedicated Receiver Cable
CBL5304-50 50 m Dedicated Receiver Cable
Tripod
HCS-5300TZJ Tripod
Earphones
EP-820AS
Single Earphone (TRS connector, Ring: NC)
EP-820BS
Single Earphone (TRS connector, Ring: NC)
EP-828
Single Earphone (TRS connector, Ring: NC, built-in
mechanical switch)
EP-920BS Earbuds(stereo)
HCS-5100PA Headphone
HCS-5100PB Headphone
3

1.2 Functions and features
1. Digital infrared wireless conference system
operating TAIDEN dirATC technology - digital
infrared Audio Transmission and Control
technology
5. Full functions
Discussion
Vote (5 keys)
Simultaneous interpretation (1+3 channels)
Isolated audio recording function for
simultaneous interpretation (1+3 channels)
2. Wireless conference system
Automatic video tracking
Quick set up and removal, free from troubles
resulting from cable breaks and cable
deteriorations
Compatible with HCS-5100 digital infrared
language distribution system
Powerful application software modules
Easy to set up a system for usage limited in time
No impact on furniture, interior equipment or
building structure
3. Infrared transmission technology
Conference privacy is guaranteed as infrared
signals do not pass through opaque walls or
ceilings
Opaque partitions between conference rooms,
allow to operate a system in each room
Any quantity of infrared wireless conference
systems can be installed within a building
The infrared communication frees users from
worries about eavesdropping and radio
interference inherent to radio wave-based
wireless communications
No radio radiation
No radio frequency license needed for operating
an infrared system all over the world
Adapts 2-8 MHz transmission frequency,
undisturbed by HF driven light sources and
mobile phones
Work without errors, even in bright sunlight
4. Digital infrared audio transmission technology
Digital infrared audio processing and transmission
technologies ensure sound quality:
Frequency response: 20 Hz-20 kHz
SNR: > 80 dBA
Total harmonic distortion: < 0.05 %
4

1.3 System technology
1.3.1 Basic system concept
The system composition of HCS-5300 digital infrared
wireless conference system is shown in figure 1.2. It is
composed of:
Digital infrared wireless conference units for
participators
Digital infrared wireless conference main unit for
system control
Digital infrared transceiver(s) for connection to main
unit
The digital infrared wireless conference main unit
converts audio and/or control signals into carrier
outputs which are transmitted to the digital infrared
transceiver(s). In the digital infrared transceiver(s) the
carriers are converted into modulated infrared light,
sent to all digital infrared wireless conference units.
The digital infrared transceiver(s) also receive infrared
signals from every digital infrared wireless conference
unit and convert the signals into audio or control
signals which are transmitted to the main unit.
Figure 1.2 The basic system concept
1.3.2 IR radiation
Audio and control signals of HCS-5300 are transmitted
as modulated infrared light. Infrared radiation is part of
the electro-magnetic spectrum, which is composed of
visible light, radio waves and other types of radiation.
Its wavelength is longer in comparison with the
wavelength of visible light.
Infrared light cannot pass through opaque walls and
ceilings and guarantees privacy of the meeting by
avoiding of being intercepted or disturbed. In addition,
infrared light has no radio radiation and a license is not
required when operating infrared light systems.
1.3.3 Carriers and channels
TAIDEN HCS-5300 digital infrared wireless conference
system adopts 2-8 MHz wave band (IEC 61603 BAND
IV), shown as figure 1.3. This wave band is suitable for
the transmission of wide band audio and corresponding
signals. HCS-5300 uses 6 frequency points of BAND
IV (please refer to table 1.1.)
Figure 1.3 Standard wave band in HCS-5300 system
Route Channel Frequency
Audio channel 1 4.3 MHz
Audio channel 2 4.8 MHz
Audio channel 3 5.8 MHz
Audio channel 4 6.3 MHz
From
conference
unit(s) to main
unit via
transceiver
Control channel 3.8 MHz
From main unit
to conference
unit(s) via
transceiver
Floor audio +
interpretation audio
(1-3) + Control
signal
2.333 MHz
Table 1.1 Channels and corresponding frequencies in
HCS-5300 system
5

1.4 Aspects of infrared signal
transmission
1.4.2 Objects, surfaces and reflections
To benefit from the advantages of a digital infrared
wireless conference system the signals should be
transmitted undisturbed. This is achieved by using
digital infrared transceivers well positioned and
sufficient in quantity to ensure uniform and adequate
infrared radiation for all conference units.
Just like visible light, infrared radiation is reflected from
hard surfaces and refracted by hyaloid (glassy or
transparent appearance) items. Objects in the
conference venue as well as structure of the walls and
ceilings will influence the distribution of infrared light.
Infrared radiation is reflected from almost all hard
surfaces. Smooth, bright or shiny surfaces reflect well.
Dark or rough surfaces absorb a large part of the
infrared energy. Usually, surfaces opaque to visible
light are also opaque to infrared radiation.
When planning a digital infrared wireless conference
system, several aspects influencing the uniformity and
quality of the infrared signal should be considered.
These are discussed in the next sections.
Shadows from walls and furniture will influence the
transmission of infrared light. This can be solved by
using a sufficient quantity of transceivers. They should
be positioned in a manner to provide an infrared field
strong enough to cover the whole conference area.
1.4.1 Ambient lighting
HCS-5300 system adopts 2-8 MHz wave band, and
has very good anti-interference performance (see
figure 1.4, figure 1.5). Make sure that each infrared wireless conference unit
can communicate simultaneously with at least two
transceivers to guarantee stable adequate infrared
signal transmission.
Figure 1.4 High frequency lights disturbance from HF
driven light sources (energy-saving lamps)
Figure 1.5 Digital infrared conference system with 2-8
MHz wave band can avoid high frequency lights
disturbance
For meeting rooms with large, unscreened windows,
multi-transceiver operation should be considered. For
outdoor using, a site test will be required to determine
the needed amount of transceivers. With sufficient
transceivers, perfect signal transmission can be fulfilled
even in bright sunlight.
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1.4.3 Infrared service area of digital infrared wireless conference unit
Infrared light is directional invisible light. Infrared
wireless conference unit gets best sensitivity when it
directly faces a transceiver. Every HCS-5300 series
digital infrared wireless conference unit is equipped
with infrared glass at its frontage to guarantee
maximum receiving angle.
In the vertical direction, the user can select "Vertical",
"Horizontal" or "V+H" work area according to
transceiver installation location, to ensure the most
effective sending and receiving infrared signals.
Figure 1.6 Coverage area of digital infrared wireless conference unit
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1.4.4 Infrared service area of digital infrared
transceiver
The type of the digital infrared transceiver determines
the covering area. More transceivers can enlarge the
covered area.
The coverage area (the red area in figure 1.7) is
determined by the intersection of the infrared working
area of the digital infrared transceiver(s) with the
receiving plane determined by the position of the
infrared wireless conference unit.
If infrared signals between the transceiver(s) and the
conference unit can get directly to each other, their
intensity guarantees normal communication.
As can be seen, the size and the position of the
coverage area are related to the height chosen for
mounting the transceiver.
a. Coverage area of digital infrared transceiver HCS-5300TD-W
b. Coverage area of digital infrared transceiver HCS-5300TDS-W
c. Coverage area of digital infrared transceiver HCS-5300TD-N d. Coverage area of digital infrared
transceiver HCS-5300TDS-N
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e. Coverage area of digital infrared transceiver HCS-5300TDB
Figure 1.7 Coverage area of digital infrared transceiver
1.4.5 Overlap and multipath effects
If footprints of two transceivers overlap, its total
coverage area may be larger than the sum of the two
separate footprints. In an area with overlap effect, the
individual radiation signals of two transceivers are
added, resulting in an increase of the radiation intensity,
larger than the required intensity.
Figure 1.8 Increased coverage area caused by added
radiation power
However, due to the differences in the delays of the
signals from two or more transceivers, the signals may
cancel out each other (multipath effect). In a
worst-case situation, loss of reception at some
positions (black spots) may be the consequence.
The distance between the main unit and each
transceiver must be equivalent to avoid multipath
effect.
Figure 1.9 Reduced coverage area caused by
differences in cable signal delay
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