Bosch Appliances 9922 141 70691 User Manual

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DCN Wireless
Installation and User Instructions
Wireless discussion systemen
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DCN Wireless | Installation and User Instructions | Important Safeguards en | 3

Important Safeguards

Before you install or operate the DCN Wireless digital congress network, you must read the Important Safety Instructions. The Important Safety Instructions are supplied together with the central control unit.
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DCN Wireless | Installation and User Instructions | Disclaimers en | 4

Disclaimers

CobraNet is a trademark of Peak Audio — a division of Cirrus Logic, Inc. — in the United States and/or other countries.
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DCN Wireless | Installation and User Instructions | About this manual en | 5

About this manual

Function
The Installation and User Instructions gives the installers and the operators the necessary data to install, configure and operate a basic DCN Wireless Discussion System.
When you want to make a more advanced DCN Wireless Discussion System, you also need information from the DCN Next Generation Installation and User Instructions.
The product index (refer to appendix B) tells you where you can find more data about devices that can be connected to DCN Wireless.
Digital version
The Installation and User Instructions is available as a digital file (Portable Document File, PDF). When the PDF refers you to a location that contains more data, you can click the text to go there. The text contains hyperlinks.
Admonitions and notes
The Installation and User Instructions uses admonitions and notes. The admonition gives the effect if you do not obey the instructions. These are the types:
Caution
If you do not obey the caution, you can cause damage to the equipment.
War ning
If you do not obey the warning, you can cause personal injury or death.
Signs
The Installation and User Instructions shows each admonition with a sign. The sign shows the effect if you do not obey the instruction.
Admonition
General sign for cautions and warnings.
Admonition
Risk of electric shock.
Admonition
Risk of electro-static discharges (refer to the section ’Electro-static discharges’).
The sign that is shown along with a note gives more data about the note itself.
Note
General sign for notes.
Note
Refer to another information source.
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DCN Wireless | Installation and User Instructions | About this manual en | 6
Electro-static discharges
Electro-static discharges can damage electric components. You must take measures to prevent electro-static discharges when you touch PCBs (refer to figure 1).
312
4 5
12
11 10 9 8 7 6
figure 1: ESD prevention
Conversion tables
Length, mass and temperature are in SI units. Refer to the data below to change SI units to imperial units.
table 2: Conversion of units of length
1 in = 25.4 mm 1 mm = 0.03937 in 1 in = 2.54 cm 1 cm = 0.3937 in 1 ft = 0.3048 m 1 m = 3.281 ft 1 mi = 1.609 km 1 km = 0.622 mi
table 3: Conversion of units of mass
1 lb = 0.4536 kg 1 kg = 2.2046 lb
table 4: Conversion of units of pressure
1 psi = 68.95 hPa 1 hPa = 0.0145 psi
Note
1 hPa = 1 mbar.
table 5: Conversion of units of temperature
table 1: ESD prevention
No. Description
1 Safety isolating transformer 2 Distribution supply box 3 Conductive compartment trays 4 Electro-static voltage sensor 5 Cotton overall 6 Conductive floor mat 7 Conductive boots/heel grounding protectors 8 Conductive stool 9 Strap (resistance 0.5 to 1.0 MΩ) 10 Common reference point 11 Conductive bench top 12 Supply ground
°F
°C
9
---
°C 32+=
5
5
---
°F 32()=
9
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DCN Wireless | Installation and User Instructions | Table of Contents en | 7

Table of Contents

Important Safeguards ..................................................................................................................................................3
Disclaimers ......................................................................................................................................................................4
About this manual .........................................................................................................................................................5
Table of Contents ..........................................................................................................................................................7
Section 1 - System Design and Planning............................................................................................................. 11
1. Wireless network design ........................................................................................................................................................... 12
1.1 Introduction ............................................................................................................................................................................ 12
1.2 Limits .......................................................................................................................................................................................12
1.3 Frequency band ....................................................................................................................................................................12
2. DCN design .................................................................................................................................................................................. 14
2.1 Introduction ............................................................................................................................................................................ 14
2.2 Calculation tool ..................................................................................................................................................................... 14
2.3 Concepts ...............................................................................................................................................................................14
2.4 Limits .......................................................................................................................................................................................14
2.5 Control capacity ................................................................................................................................................................... 15
2.6 Power capacity ..................................................................................................................................................................... 15
2.7 Cable lengths ........................................................................................................................................................................ 17
2.8 Examples ................................................................................................................................................................................19
2.9 Interpretation devices .......................................................................................................................................................... 21
3. Optical network design .............................................................................................................................................................. 22
3.1 Introduction ............................................................................................................................................................................ 22
3.2 Calculation tool ..................................................................................................................................................................... 22
3.3 Limits .......................................................................................................................................................................................22
3.4 Control capacity ................................................................................................................................................................... 22
3.5 Power capacity ..................................................................................................................................................................... 22
3.6 Cabling ...................................................................................................................................................................................23
3.7 Example layouts ....................................................................................................................................................................25
4. Camera control .............................................................................................................................................................................28
4.1 Introduction ............................................................................................................................................................................ 28
4.2 Scenarios ...............................................................................................................................................................................28
5. Infra-red wireless language distribution .................................................................................................................................. 28
6. CobraNet ....................................................................................................................................................................................... 29
7. User set-up ....................................................................................................................................................................................29
7.1 Public areas and walkways ................................................................................................................................................ 29
7.2 Headphones/headsets ........................................................................................................................................................ 29
7.3 Speaking distance ...............................................................................................................................................................29
7.4 Interpreter booths ................................................................................................................................................................. 29
8. Device set-up ................................................................................................................................................................................30
8.1 General ...................................................................................................................................................................................30
8.2 Cables .....................................................................................................................................................................................30
8.3 Temperature .......................................................................................................................................................................... 30
8.4 Ventilation ..............................................................................................................................................................................30
8.5 Cleaning .................................................................................................................................................................................30
8.6 Storage ...................................................................................................................................................................................30
8.7 Acoustic feedback ...............................................................................................................................................................31
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9. Technical data ..............................................................................................................................................................................32
9.1 System electrical and electro-acoustic characteristics ............................................................................................... 32
9.2 Environmental conditions ................................................................................................................................................... 33
9.3 Safety ......................................................................................................................................................................................33
9.4 Electro-magnetic compatibility .......................................................................................................................................... 34
9.5 Wireless devices ..................................................................................................................................................................34
9.6 Miscellaneous ....................................................................................................................................................................... 35
Section 2 - Central Devices ...................................................................................................................................... 37
10. DCN-WCCU Wireless Central Control Unit ......................................................................................................................... 38
10.1 Introduction ............................................................................................................................................................................ 38
10.2 Controls, connectors and indicators ............................................................................................................................... 38
10.3 Internal settings ....................................................................................................................................................................39
10.4 Installation ..............................................................................................................................................................................43
10.5 External connections ...........................................................................................................................................................43
10.6 Configuration menu .............................................................................................................................................................49
11. DCN-WAP Wireless Access Point ......................................................................................................................................... 60
11.1 Introduction ............................................................................................................................................................................ 60
11.2 Firmware ................................................................................................................................................................................. 60
11.3 Controls, connectors and indicators ............................................................................................................................... 60
11.4 Installation ..............................................................................................................................................................................61
11.5 External connections ...........................................................................................................................................................63
11.6 Configuration ......................................................................................................................................................................... 63
11.7 Operation ............................................................................................................................................................................... 65
12. System configuration .................................................................................................................................................................. 67
12.1 Introduction ............................................................................................................................................................................ 67
12.2 Initialization .............................................................................................................................................................................67
12.3 Wireless modes ....................................................................................................................................................................68
12.4 Microphone modes ..............................................................................................................................................................69
12.5 Repetition rate .......................................................................................................................................................................70
12.6 Audio routing modes ...........................................................................................................................................................70
12.7 Attention chimes ...................................................................................................................................................................72
12.8 Erase requests-to-speak and speakers ...........................................................................................................................72
12.9 Floor distribution ................................................................................................................................................................... 72
12.10 Intercom ..................................................................................................................................................................................73
13. System operation .........................................................................................................................................................................74
13.1 Start the system .................................................................................................................................................................... 74
13.2 Stop the system .................................................................................................................................................................... 74
Section 3 - Contribution Devices............................................................................................................................ 75
14. DCN-WDU Wireless Discussion Units ..................................................................................................................................76
14.1 Introduction ............................................................................................................................................................................ 76
14.2 Controls, connectors and indicators ............................................................................................................................... 76
14.3 Internal settings ....................................................................................................................................................................79
14.4 Modes .....................................................................................................................................................................................81
14.5 Installation ..............................................................................................................................................................................83
14.6 Subscription .......................................................................................................................................................................... 85
14.7 External connections ...........................................................................................................................................................86
14.8 Operation ............................................................................................................................................................................... 87
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15. DCN-MICL, DCN-MICS Pluggable Microphones ................................................................................................................ 89
15.1 Introduction ............................................................................................................................................................................ 89
15.2 Controls, connectors and indicators ............................................................................................................................... 89
15.3 External connections ...........................................................................................................................................................90
15.4 Operation ............................................................................................................................................................................... 90
16. DCN-WLIION Battery Pack ...................................................................................................................................................... 91
16.1 Introduction ............................................................................................................................................................................ 91
16.2 Safety ......................................................................................................................................................................................91
16.3 Controls, connectors and indicators ............................................................................................................................... 92
16.4 Installation ..............................................................................................................................................................................92
16.5 Operation ............................................................................................................................................................................... 92
17. DCN-WCH05 Battery Charger ................................................................................................................................................ 93
17.1 Introduction ............................................................................................................................................................................ 93
17.2 Controls, connectors and indicators ............................................................................................................................... 93
17.3 Installation ..............................................................................................................................................................................94
17.4 External connections ...........................................................................................................................................................95
17.5 Operation ............................................................................................................................................................................... 96
18. DCN-WPS Power Supply Adapter ......................................................................................................................................... 97
18.1 Introduction ............................................................................................................................................................................ 97
18.2 Installation ..............................................................................................................................................................................97
18.3 External connections ...........................................................................................................................................................97
19. DCN-DDI Dual Delegate Interface ..........................................................................................................................................98
19.1 Introduction ............................................................................................................................................................................ 98
19.2 Controls, connectors and indicators ............................................................................................................................... 98
19.3 Internal settings ....................................................................................................................................................................99
19.4 Configuration ......................................................................................................................................................................... 99
19.5 Installation ............................................................................................................................................................................101
19.6 External connections .........................................................................................................................................................101
20. DCN-WFCD10 Flight Case for Wireless Discussion Units ............................................................................................103
21. DCN-WFCCU Flight Case for DCN-WCCU and DCN-WAP ........................................................................................103
Section 4 - Appendices ...........................................................................................................................................105
A Audio levels .................................................................................................................................................................................106
B Product index ..............................................................................................................................................................................108
C Statements for FCC & Industry Canada ..............................................................................................................................110
D Declarations ................................................................................................................................................................................111
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Intentionally left blank.
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Section 1 - System Design and Planning

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1 Wireless network design

1.1 Introduction

The DCN Wireless has three parts: the wireless network, the DCN and the optical network. This chapter tells how to design the wireless network.

1.2 Limits

Limit 1: Control capacity
The maximum number of devices in the wireless network that the central control unit can control is 150.
Limit 2: Coverage area
For a good operation of the wireless part, all wireless discussion units need to be in range of the wireless access point. The wireless access point has a typical maximum coverage area of 30 m by 30 m. To determine the exact coverage area the coverage test kit can be used.

1.3 Frequency band

1.3.1 802.11g specification
The wireless network is based on the 802.11g specification for WiFi technology. Devices that comply to the 802.11g specification operate in frequency bands between 2.4000 and 2.4835 GHz.
Note
Although the system operates on frequencies which are license free world wide, you must be aware of country specific limitations and follow them.
1.3.2 Wireless computer networks
Wireless computer networks are also based on the
802.11g specification for WiFi technology. In the wireless computer networks, 13 overlapping channels are available (refer to figure 1.1).
Note
You can change the power value of the wireless access point (refer to section 11.6.4).
Limit 3: Frequency
The wireless network must operate in a different frequency band than adjacent wireless computer networks (refer to section 1.3).
1.3.3 Carriers
In the wireless network of DCN Wireless, three non-overlapping wireless carriers are available (refer to figure 1.2).
1.3.4 Interference
The wireless network of DCN Wireless can cause interference on wireless computer networks. You must make sure the DCN wireless carrier does not overlap the WLAN channel.
1.3.5 Example
Refer to figure 1.3. In the example, the WLAN channel is 3. WLAN channel 3 overlaps DCN wireless carriers 0 and 1. Therefore, use DCN wireless carrier 2.
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GHz
2.400
2.412
1
figure 1.1: WLAN channels
01 2
GHz
2.400
figure 1.2: DCN wireless carriers
2.412
GHz
2.417
2.422
2.427
2.432
2.437
2.442
2.447
2.452
2.457
2.462
2.467
2.472
2
3
4
5
6
7
8
9
2.417
2.422
2.427
2.432
2.437
2.442
2.447
2.452
10
2.457
11
2.462
12
2.467
13
2.472
2.484
2.484
GHz
01 2
GHz
2.400
2.412
1
figure 1.3: Example of interference
GHz
2.417
2.422
2.427
2.432
2.437
2.442
2.447
2.452
2.457
2.462
2.467
2.472
2
3
4
5
6
7
8
9
10
11
12
13
2.484
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2DCN design

2.1 Introduction

The DCN Wireless has three parts: the wireless network, the DCN and the optical network. This chapter tells how to design the DCN.

2.2 Calculation tool

The calculation tool makes the planning and design of the DCN easier. You can find the calculation tool on the CD-ROM that is supplied with your system.

2.3 Concepts

2.3.1 Introduction
This section gives necessary data to understand the limitations in section 2.4.
2.3.2 Trunk and tap-off sockets
The DCN uses two types of socket:
DCN trunk sockets
Use the DCN trunk sockets to make a loop-through in the trunk of the DCN.
DCN tap-off sockets
Use the DCN tap-off sockets to make more branches in the DCN. A DCN tap-off socket always regenerates the digital DCN signal.
2.3.3 Cables
Many devices used in the DCN have a 2 m cable. If necessary the extension cable (LBB4116) can extend the device cables.

2.4 Limits

Make sure that these limits are not exceeded when you design the DCN:
Limit 1: Control capacity
The maximum number of active devices that the central control unit can control is 95:
Max. 93x DCN-IDESK
Max. 2x DCN-DDI:
1x with intercom handset
1x with ambient microphone
The number of passive devices is without limit (refer to section 2.5).
Limit 2: Power capacity
The maximum power that one DCN socket of the central control unit can supply is 65 W.
The total power that the DCN sockets of the central control unit can supply is 130 W.
The maximum power that one DCN socket of the extension power supply can supply is 85 W
The total power that the DCN sockets of the extension power supply can supply is 255 W.
Refer to section 2.6.
Limit 3: Loop-throughs
The maximum number of loop-throughs in succession is
50. If there are more than 50 loop-throughs, the signal
must be regenerated with a trunk splitter (LBB4114/00).
Limit 4: Tap-off connections
The maximum number of tap-off connections in succession between the central control unit and the last tap-off in a branch is four. If there are more than four tap-off connections in succession, the system does not operate correctly.
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Limit 5: Cable lengths
Refer to section 2.7:
With regenerative tap-offs, the maximum cable length is 250 m from the central control unit to the furthest device in any branch of the DCN.
The maximum cable length from the central control unit to the first regenerative tap-off is 100 m.
The maximum length of the cable between regenerative tap-offs is 100 m.
Open-ended cables can cause an incorrect operation of the system.
Note
The total cable length includes the 2 m long device cables.

2.5 Control capacity

2.5.1 Active devices
Active devices are devices that can:
Receive data from the central control unit.
Transmit data to the central control unit.
Note
Active devices must have an address (refer to section 12.2).
2.5.2 Passive devices
Passive devices can only receive data from the central control unit.
2.5.3 Overview
The table shows the active and passive devices in the DCN.
table 2.1: Active and passive devices
Device Type
DCN-DDB Passive/Active DCN-DDI Active DCN-FCS Passive DCN-IDESK Active

2.6 Power capacity

2.6.1 Introduction
Each device uses power and most devices do not have an independent power supply.
2.6.2 Power consumption
The table shows the power each device in the DCN uses.
table 2.2: Power consumption
Device Watt
DCN-DDB 2.0 DCN-DDI 4.5 DCN-FCS 0.9 DCN-IDESK 3.6
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OutOutOutIn
Tap-offTrunk
OutOutOutIn
Tap-offTrunk
DCN-EPS
DCN-EPS
e
P<85W
P < 255 W
2.6.3 Power supplies
2.6.3.1 Introduction
The devices that supply power to the DCN are the central control unit and the extension power supply (refer to figure 2.1 and figure 2.2). The power that the central control unit supplies includes the power that the optical network uses.
2.6.3.2 DCN-WCCU
DCN-WCCU
Network
12
Trunk
DCN-WCCU
Network
12
Trunk
12
12
RS232 Port1
AudioIn1 AudioOut1 AudioIn2 AudioOut2
RS232
Port2
Fault
OK Fault
RS232 Port1
AudioIn1 AudioOut1 AudioIn2 AudioOut2
RS232
Port2
Fault
OK Fault
P<65W
Mains
230
115:100-120V 50-60Hz T2.5A250V 230:220-240V 50-60Hz
Mains
230
115:100-120V 50-60Hz T2.5A250V 230:220-240V 50-60Hz
T2AH250V
T2AH250V
2.6.3.3 DCN-EPS
figure 2.2: DCN power supply: DCN-EPS
DCN-WCCU
RS232 Port1
AudioIn1 AudioOut1 AudioIn2 AudioOut2
RS232
Network
figure 2.1: DCN power supply: DCN-WCCU
12
Trunk
12
Port2
Fault
OK Fault
Note
If the power is higher than shown in figure 2.1, an overload situation occurs (refer to section
2.6.4).
P<130W
P<130W
Mains
230
115:100-120V 50-60Hz T2.5A250V 230:220-240V 50-60Hz
Note
If the power is higher than shown in figure 2.2, an overload situation occurs (refer to section
2.6.4).
T2AH250V
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2.6.4 Overload indication
Each DCN socket of the central control unit and extension power supply has a red LED that comes on to show that there is a power overload. An overload occurs when:
The necessary power for the devices is greater than that is supplied.
A short-circuit occurs.
When an overload occurs, the sockets are deactivated and the connected devices do not operate. The socket checks every 8 seconds (DCN-WCCU) or 30 seconds (DCN-EPS) for power overloads.
2.6.5 Extension cables
Extension cables (LBB4116) have a direct effect on the available power. The longer an extension cable, the less power is available to drive the connected devices. You must chose the length of the extension cables carefully (refer to section 2.7.5).

2.7 Cable lengths

2.7.1 Maximum length
The cable length between the central control unit and the furthest device from the central control unit must not be more than 250 m. The cable length includes the device cable and extension cables.
2.7.2 To first regenerative tap-off
The total cable length between the central control unit and the first regenerative tap-off socket must not be more than 100 m. This includes the device cables and extension cables.
2.7.3 Between regenerative tap-offs
The total cable length between two regenerative tap-off sockets must not be more than 100 m. This includes the device cables and extension cables.
2.7.4 Open-ended DCN cables
‘Open-ended’ DCN cables are DCN cables of which the socket is not connected to a device in the DCN. ‘Open-ended’ cables can cause an incorrect operation of the system. You can ‘close’ the extension cable with a termination plug (refer to the DCN Next Generation Installation and User Instructions). When the ‘open-ended’ cable is connected to a termination plug, the system operates correctly.
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2.7.5 Power correction
2.7.5.1 Introduction
The necessary power from a DCN socket of the central control unit and the extension power supply is affected by:
The type and number of connected devices.
The lengths of the connected extension cables.
The power correction graph (refer to figure 2.3) corrects the power level to compensate for the extension cables.
2.7.5.2 Calculation
To find the correction for each DCN socket of the central control unit and the extension power supply with the graph, you must first calculate:
The total power consumption of the devices that are connected to the socket. Refer to section 2.7.5.3.
The length of the longest extension cable sequence. Refer to section 2.7.5.4.
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2.7.5.3 Total power consumption
Do as follows: 1 Find the power consumption of each device from the
consumption table (refer to table 2.2).
2 Add together the power used by all the devices. The
result is the total power consumption of the devices that are connected to the socket.
2.7.5.4 Length of the longest extension cable sequence
Do as follows: 1 Add together the lengths of all extension cables in
the longest sequence.
For example, an extension cable of 20 m is connected directly to a DCN socket of the central control unit. To the extension cable, a trunk splitter is connected. To each tap-off socket of the trunk splitter, an extension cable is connected. One extension cable has a length of 10 m, the other extension cable has a length of 40 m. The length of the longest extension cable sequence is, in this example: 20 + 40 = 60 m.
2.7.5.5 Graph
The power correction graph (refer to figure 2.3) corrects the power level to compensate for the extension cables. Do as follows: 1 Find the total power consumption (refer to section
2.7.5.3) on the vertical axis (Y) of the power correction graph. For example, 40 W.
2 Find the length of the longest extension cable
sequence (refer to section 2.7.5.4) on the horizontal axis (X) of the power correction graph. For example, 60 m.
3 The intersection of both values gives the necessary
power from the socket. For example, 53 W.
85 80 75 70 65
60 55 50 45 40 35 30
Y: Power (Watt)
25 20
15 10
5
0
81
84
76
78
70
80
72
65
73
66
60 54
60
49
54
43
48
38
42
32
36
27
30
21
24
16
18
11
12
6
6
20 40 60 80 100 120 140 160 180
DCN-WCCU
+ DCN-EPS
66 60 53 46 40 33 26 20 13
6
82 75 67 60 52 45 37 30 22 15
7
85 77 68 60
51 42 34 25
17
83 73
80 64 55 46 36 27 18
8
9
70
60
50
40
30
20
10
76 65 54 43 32
21 11
X: Extension cable (m)
84 72
80
75
66
60
53 40 26 13
60
45 30 15
48 36 24 12
200 220 240 250
85 68 51 34
17
73 55 36 18
figure 2.3: Power correction graph
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2.8 Examples

2.8.1 Cable lengths
Legend
R
Regenerative tap-off
P
Power overload
DCN-WCCU
Network
12
48V 48V
Trunk
12
RS232 Port1
AudioIn1 Audio Out1 AudioIn 2 AudioOut2
RS232
Port2
Fault
NC C C NO
Mains
230
115:100-120V 50-60Hz T2.5A 250V 230:220-240V 50-60Hz
T2AH250V
DCN-EPS
Tap-offTrunk
OutOutOutIn
2m
T runk
LBB4114/00
LBB4114/00
100 m
100 m
R R
LBB4114/00
LBB4114/00
100 m
100 m
LBB4114/00
R
240 m
LBB4114/00
R
240 m
P
250 m (max)
2m
5x2m=10m
figure 2.4: Example with cable lengths
Point I
The maximum available power with 240 m of extension cables is 19 W (refer to figure 2.3). Because the first and second trunk splitter use 2.6 W, the available power at point I is 19 - 2.6 = 16.4 W.
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250 m (max)
P
5x2m=10m
Point II
The maximum available power with 240 m of extension cable is 25 W (refer to figure 2.3). Because the first and second trunk splitter use 2.6 W, the available power at point II is 25 - 2.6 = 22.4 W.
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2.8.2 Power correction
DCN-WCCU
RS232 Port1
AudioIn1 Audio Out1 AudioIn 2 AudioOut2
RS232
Network
12
48V 48V
Trunk
12
Port2
Fault
NCCCNO
50 m 20 m
3
3
LBB4114/00
2
Mains
230
115:100-120V 50-60Hz T2.5A 250V 230:220-240V 50-60Hz
T2AH250V
2
LBB4114/00
2
2
2
figure 2.5: Example with interpreter desks (DCN-IDESK)
4
LBB4114/00
10 m
4
LBB4114/00LBB4114/00
4
table 2.3: Example with interpreter desks (DCN-IDESK)
Socket Power for devices Cable length Corrected power
Trunk 1 50.7 W 50 m 64.0 W Tru n k 2 56.6 W 30 m 64.7 W
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LBB4115/00
LBB4115/00
LBB4115/00

2.9 Interpretation devices

The maximum number of interpreter desks you can install in an interpreter booth is six. Refer to figure 2.6 and figure 2.7 for two examples that use LBB4114/00 Trunk Splitters and LBB4115/00 Protected Trunk Splitters.
With an LBB4114/00 Trunk Splitter, you can connect the interpreter desks in series (refer to figure 2.6). If an interpreter desk becomes defective, the defective desk can have an effect on all other interpreter desks that have a connection to the same trunk.
LBB4114/00
With an LBB4115/00 Protected Trunk Splitter, you can connect two interpreter desks (refer to figure 2.7). If an interpreter desk becomes defective, the defective desk has no effect on all other interpreter desks that have a connection to the same trunk.
figure 2.6: Interpreter booths with LBB4114/00
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figure 2.7: Interpreter booths with LBB4115/00
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3 Optical network design

3.1 Introduction

The DCN Wireless has three parts: the wireless network, the DCN and the optical network. This chapter tells how to design the optical network.

3.2 Calculation tool

The calculation tool makes the planning and design of the optical network easier. You can find the calculation tool on the CD-ROM that is supplied with your system.

3.3 Limits

Make sure that these limits are not exceeded when you make the optical network:
Limit 1: Control capacity
The maximum number of nodes in the optical network is 63 (refer to section 3.4).
Limit 2: Number of devices
The maximum number of devices that you can connect to the optical network of the central control unit is 16. The maximum number of DCN-WAP Wireless Access Points in the optical network is 1.
Limit 3: Power capacity
The maximum power that the optical network sockets of the central control unit can supply is 65 W (refer to section 3.5).
Limit 4: Cables
Refer to section 3.6:
The maximum length of a POF cable is 50 m.
The maximum cable length (POF and GOF) of the optical network is dependent on the number of nodes in the optical network.
The minimum bend radius of a 90 degree bend in a POF cable is 110 mm.
The minimum coiling radius of a POF cable is 110 m m.

3.4 Control capacity

Each device in the optical network has a number of nodes (refer to table 3.1). The maximum number of nodes in the optical network is 63.
table 3.1: Nodes
Device Nodes
DCN-CCU 2 DCN-WAP 1 LBB4402/00 1 LBB4404/00 1 LBB4410/00 1 LBB4414/10 0 INT-TX04 1 INT-TX08 2 INT-TX16 4 INT-TX32 8 PRS-4DEX4 1

3.5 Power capacity

3.5.1 Introduction
Each device uses power and most devices do not have an independent power supply.
3.5.2 Power consumption
The table shows the power each device in the optical network uses.
table 3.2: Power consumption
Device Watt
DCN-WAP 4 LBB4402/00 7. 6 LBB4404/00 10.5 LBB4410/00 3.9 LBB4414/10 4.6 PRS-4DEX4 6.0
Note
The Integrus transmitters do not use power from the system.
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3.5.3 Power supply
The device that supplies power to the optical network is the central control unit, refer to figure 3.1. The power that the central control unit supplies includes the power that the DCN uses.
DCN-WCCU
Network
12
Trunk
DCN-WCCU
Network
12
Trunk
DCN-WCCU
Network
12
Trunk
12
12
12
RS232 Port1
AudioIn1 AudioOut1 AudioIn2 AudioOut2
RS232
Port2
Fault
OK Fault
RS232 Port1
AudioIn1 AudioOut1 AudioIn2 AudioOut2
RS232
Port2
Fault
OK Fault
P<65W
RS232 Port1
AudioIn1 AudioOut1 AudioIn2 AudioOut2
RS232
Port2
Fault
OK Fault
P<130W
P<65W
Mains
230
115:100-120V 50-60Hz T2.5A250V 230:220-240V 50-60Hz
Mains
230
115:100-120V 50-60Hz T2.5A250V 230:220-240V 50-60Hz
Mains
230
115:100-120V 50-60Hz T2.5A250V 230:220-240V 50-60Hz
T2AH250V
T2AH250V
T2AH250V
3.5.4 Overload indication
Each optical network socket of the central control unit has a red LED that comes on to show that there is a power overload. An overload occurs when the necessary power for the devices is greater than that supplied. The sockets are deactivated and the devices connected to the central control unit do not operate. The socket checks every 8 seconds for power overloads.
Note
If only one of the optical network sockets has a power overload, the two overload LEDs come on.

3.6 Cabling

3.6.1 Introduction
Many devices in the optical network have two optical network sockets that are interchangeable. You can use the two optical network sockets to make a redundant ring.
Note
The two optical network connectors are the same.
figure 3.1: Optical network power supply
If more power is necessary, you must install external power supplies in the optical network. The devices below can connect to external power supplies:
LBB4410/00 Network Splitter (refer to the DCN Next Generation Installation and User Instructions).
LBB4414/10 Fiber Interface (refer to the DCN Next Generation Installation and User Instruction).
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3.6.2 Definitions
The optical network uses two types of cable:
POF
Plastic Optical Fiber.
GOF
Glass Optical Fiber.
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3.6.3 Optical fiber length
Because of optical attenuation, the maximum length of optical network cables (LBB4416) is 50 m. You can use GOF and fiber interfaces to increase the distance between devices to a maximum of 1500 m.
Note
If the distance between two devices is less than 100 m, use a network splitter between devices to remove the use of fiber interfaces. Use only the trunk sockets of the network splitter in this case.
3.6.4 Cable couplers
You can use the LBB4419/00 Cable Couplers to connect optical network cables to each other. A cable coupler causes optical attenuation. Each cable coupler decreases the maximum distance between two devices in the optical network (normally 50 meters) with 20 meters.
3.6.5 Maximum cable length
The maximum cable length (LBB4416 and GOF) of the optical network is dependent on:
The number of nodes
The number of LBB4414/10 Fiber Interfaces
Do as follows: 1 Find the number of nodes of each device from the
node value table (refer to table 3.1). Add together the nodes of all devices.
2 With the value of step 1, use the graph (refer to
figure 3.2) to find the maximum cable length without LBB4414/10 Fiber Interfaces.
3 Count the number of LBB4414/10 Fiber Interfaces.
Each fiber interface decreases the maximum cable length from step 2 with 18 m.
2150
2050
1950
1850
175 0
1650
1550
1450
1350
1250
Max. cable length (m)
115 0
1050
950
5010152025
figure 3.2: Cable correction graph
30 35 40 45 50 55 60 63
Nodes
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3.6.6 Bending
The minimum bend radius of a 90 degree bend in an LBB4416 cable is 110 mm (refer to figure 3.3). A 180 degree bend is the same as two 90 degree bends.
R=110 mm
figure 3.3: Bend radius
3.6.7 Coiling
The minimum coiling radius of an LBB4416 cable is 110 mm (refer to figure 3.4).
R=110 mm
figure 3.4: Coiling radius

3.7 Example layouts

3.7.1 Introduction
The number and type of devices that make the optical network give the layout of the optical network. This chapter shows examples of the possible layouts of optical networks.
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DCN-WCCU
DCN-WAP
LBB4404/00
INT-TX
PRS-4DEX4
3.7.2 Basic optical network
Refer to figure 3.5 for an example of a basic optical network.
DCN-WCCU
DCN-WAP
figure 3.5: Basic optical network
3.7.4 Redundant cables
The example of the extended optical network (refer to figure 3.6) has no redundant cable. If the cable between the central control unit (DCN-WCCU) and the wireless access point (DCN-WAP) breaks, the central control unit cannot transmit data to the wireless access point. A solution for this problem is to use redundant cable (refer to figure 3.7 for an example).
3.7.3 Extended optical network
Refer to figure 3.6 for an example of an extended optical network.
DCN-WCCU
LBB4404/00
DCN-WAP
PRS-4DEX4
figure 3.6: Extended optical network
INT-TX
figure 3.7: Redundant optical network
The example of the system without redundant cable (refer to figure 3.6) has no connection between the cobranet interface (LBB4404/00) and the central control unit (DCN-WCCU). The example of the system with redundant cable has a connection between the Cobranet Interface and the central control unit. This connection makes a ring. If a cable breaks, the optical network continues to operate.
The maximum total power of all devices in the redundant optical network is 65 W. If the optical network is defective near the central control unit, the other socket can supply power to all of the optical network.
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3.7.5 Tap-offs
The network splitter (LBB4410/00) lets you make tap-offs (refer to figure 3.8 for an example). Tap-offs cannot be redundant. If the cable between the network splitter and the digital audio expander (PRS-4DEX4) becomes defective, the digital audio expander has no connection to the central control unit.
DCN-WCCU
DCN-WAP
LBB441 0/00
PRS-4DEX4
figure 3.8: Redundant optical network with tap-off
INT-TX
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4 Camera control

4.1 Introduction

The central control unit can automatically point video cameras in the direction of the delegate or chairman who speaks. You can connect video cameras to the central control unit through a video switcher or directly to the central control unit. Use a video switcher to connect more that one video camera and video display to the central control unit.

4.2 Scenarios

These scenarios are possible:
Direct camera control in a system without a DCN control PC. Refer to the DCN Next Generation Installation and User Instructions.
Camera control through a video switcher in a system without a DCN control PC. Refer to the DCN Next Generation Installation and User Instructions.
5 Infra-red wireless
language distribution
You can connect the system to an Integrus digital infra-red language distribution system. This system has a transmitter, radiators and receivers.
Note
Refer to the Integrus Installation and User Instructions for more data.
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figure 5.1: Integrus
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6 CobraNet

CobraNet is a standard for the transport of real-time digital audio and control data through an Ethernet network. A CobraNet network can transport a maximum of 64 channels of 48 kHz, 20-bit audio through a 100 Mbit link connection in each direction. Many manufacturers of professional audio devices support the CobraNet standard.
The DCN Wireless digital congress network can connect to CobraNet networks with the LBB4404/00 Cobranet Interface. For example, you can use the LBB4404/00 Cobranet Interface to:
Benefit from Ethernet infrastructure
Transport audio signals over large distances
Note
Refer to the DCN Next Generation Installation and User Instructions for the LBB4404/00 Cobranet Interface.
PC data, for example data from the DCN Wireless Open Interface can co-exist with CobraNet data on the same Ethernet network when you use managed Ethernet switches that are approved by Peak Audio.
Note
Refer to the website of Peak Audio (www.peakaudio.com) for:
More data about CobraNet networks.
A list of approved Ethernet switches.

7User set-up

7.1 Public areas and walkways

Keep public areas clear of system and extension cables and connections.

7.2 Headphones/headsets

Put headphones or headsets with:
Wireless discussion units.
Interpreter desks.
Channel selector.
Integrus receivers.
Acoustic feedback between the connected headphones or headsets and the microphone occurs when:
The volume level is set too high.
The headphones are too close to activated microphones.

7.3 Speaking distance

The recommended speaking distance from the microphone is 0.2 m to 0.4 m.

7.4 Interpreter booths

Make sure each interpreter booth has sufficient dimensions. The International Organization for Standardization (ISO) gives the specification for interpreter booths. Refer to standard ISO 2603 ‘Booths for simultaneous interpretation - General characteristics and equipment’ for more data.
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8 Device set-up

8.1 General

Caution
Do not put objects on top of devices. Objects can fall through the airflow holes. A blockage of the airflow holes can cause a risk of fire.
Caution
Do not put the devices near or above a radiator, heat grill or in direct sunlight.
Caution
Do not cause vibration of the devices.
Make sure that the area is clean.
Make sure that the air is sufficiently cool.
Make sure that there is sufficient lighting.

8.4 Ventilation

Keep a good airflow. Airflow holes are in the front, right and left sides of all 19-inch devices (for example, the central control unit and the audio expander).
Put the devices on a hard and level surface.
Put the central control unit at minimum distance of
0.10 m from walls to let sufficient air flow.

8.5 Cleaning

Caution
Do not use alcohol, ammonia or petroleum solvents or abrasive cleaners to clean the devices.
1 Disconnect the mains power supply from the
devices, if you want to clean the devices.
2 Use a soft cloth that is not fully moist with a weak
soap and water solution.
3 Let the device fully dry before you operate the
device again.

8.6 Storage

8.2 Cables

Use different cable ducts for the extension and mains cables. Identify each cable with a label and divide trunks to manageable geographic locations. In public areas where people can touch or move above the connectors and cables, use metal protection covers. Refer to the applicable protection specification of the protection covers.

8.3 Temperature

When devices are in a 19-inch rack, make sure there is rack space between the devices to let sufficient air flow. Forced airflow may be necessary to keep the temperature of the devices below the maximum temperature (refer to section 9.2). This extends the lifetime of the devices.
Note
If the central control unit is stopped or disconnected from the mains power supply for more than 100 days, the values of all system parameter are erased. This includes all the values of the parameters of the interpreter desks and the wireless access point. This does not include the subscription list.
1 Disconnect the mains power supply from the
devices, if you do not use the devices for a long time.
2 Keep the devices in a clean and dry area with a
sufficient airflow.
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8.7 Acoustic feedback

Acoustic feedback (‘howling’) occurs when the sound of the loudspeakers or headphones in the system is sent to the system again by activated microphones.
table 8.1: Acoustic feedback
Source Quick solution Structural solution
The acoustic feedback is caused by the loudspeakers of the contribution devices.
Decrease the volume level of the system. For example, with the knob on the front of the central control unit (refer to section 10.6.3).
Do as follows: 1 Install a feedback suppressor
between audio input 2 and audio output 2 of the central control unit.
2 Set the audio routing mode of
the system to Insertion (refer to section 12.6).
The acoustic feedback is caused by an external public address system that is connected to the DCN Wireless digital congress network.
The acoustic feedback is caused by the headphones that are connected to the contribution devices.
Decrease the volume level of the public address system or the DCN Wireless digital congress network.
Tell the chairmen and the delegates to decrease the volume level of their headphones with their contribution devices.
Install a feedback suppressor between audio output 1 and the input of the external public address system.
Install and configure the headphones level reduction of the contribution devices. (Refer to the section about the contribution devices.)
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9 Technical data

9.1 System electrical and electro-acoustic characteristics

9.1.1 General
table 9.1: Electro-acoustic characteristics
Nominal input level:
85 dB SPL
Overload input level:
110 d B S P L
Automatic gain reduction (not for PA-floor output):
24 dB (interpretation channels)
12 dB (delegate loudspeaker channel)
Automatic gain reduction with:
3 dB (2 microphones on)
6 dB (4 or more microphones on)
Loudspeaker gain control:
24 x 1 dB and off (mute)
9.1.2 Transmission links
From delegate microphone to interpreter headphones
From delegate microphone to delegate headphones
From interpreter microphone to delegate headphones
From interpreter microphone to interpreter headphones
From auxiliary input to delegate headphones
From auxiliary input to interpreter headphones
From delegate microphone to auxiliary output
From interpreter microphone to auxiliary output
table 9.2: Transmission links
Frequency response:
125 Hz to 20 kHz (General)
125 Hz to 3.5 kHz (Intercom links)
Harmonic distortion:
< 0.5%
Harmonic distortion @ overload:
< 1%
Crosstalk attenuation @ 4 kHz:
> 80 dB
Dynamic range:
> 90 dB
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9.1.3 Combined devices from input to output
Delegate microphone with transmission link to interpreter headphones
Delegate microphone with transmission link to delegate headphones
Delegate microphone with transmission link to auxiliary output
Interpreter microphone with transmission link to interpreter headphones
Interpreter microphone with transmission link to delegate headphones
Interpreter microphone with transmission link to auxiliary output
table 9.3: Combined devices from input to output
Typical frequency response:
125 Hz to 20 kHz
Front-to-random sensitivity index:
> 4.6 dB
Rated equivalent sound pressure level due to inherent noise:
< 25 dB(A)
Total harmonic distortion @ overload:
< 1%
Crosstalk attenuation:
> 80 dB

9.2 Environmental conditions

table 9.4: Environmental conditions
Working conditions:
Fixed, stationary, transportable
Temperature range:
-20 to +70 °C (transport)
+5 to +45 °C (operation)
For EPS and contribution devices with an LCD, the maximum temperature is +40 °C.
Relative humidity:
< 95%

9.3 Safety

According Low Voltage Directive 73/23/EEC amended by Directive 93/68 EEC.
For European countries: according EN60065. Marking: CE
For international countries: IEC 60065 according CB-Scheme.
For North America:
USA: ANSI/UL 60065
Canada: CAN/CSA no. 60065
Marking c-CSA-us.
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9.4 Electro-magnetic compatibility

table 9.5: Electromagnetic compatibility
EMC compatibility:
According ECM Directive 89/336/EEC amended by Directive 93/68/ECC European approvals: CE marking EMC environment: for commercial or professional use
EMC emission:
According harmonized standard EN 55103-1 (E3) (prof. audio/video equipment) According FCC rules (FCC part 15) complying to limits for class A digital devices
EMC immunity:
According harmonized standard EN 55103-2 (E3) (prof. audio/video equipment)

9.5 Wireless devices

table 9.6: Wireless devices
Frequency
2400 - 2483.5 MHz
Max. transmitting power:
100 mW e.i.r.p.
Bandwidth:
22 MHz
Leading listed and certified country approvals:
Europe CE
Standard Telecom
EMC
Safety
USA Standard Telecom, EMC
Safety
Canada Standard Telecom, EMC
Safety
Japan Standard Telecom, EMC Ordinance regulating
EN 300 328 EN 301 489-1 EN 301 489-17 EN 60950-1 FCC part 15.247 ANSI / UL 60950-1 RSS 210 CSA 22.2 no. 60950-1
radio equipment: Item 19 Article 2
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9.6 Miscellaneous

table 9.7: Miscellaneous
Basic standard ESD:
According EN 61000-4-2. Contact discharge: 4 kV and air discharge: 8 kV
Basic standard mains harmonics and voltage fluctuations, flicker:
According EN 61000-3-2 and EN 61000-3-3
Basic standard RF electromagnetic fields:
According EN 61000-4-3 RF conducted: 150 kHz - 80 MHz: 3 Vrms RF radiated 80 - 1000 MHz: 3 V/m Cellular telephone (GSM) dummy test: at 20 cm speech distance Criteria: not effecting normal operation.
Magnetic immunity:
Rack mounting: 50 Hz - 10 kHz: 4 - 0.4 A/m No rack mounting: 50 Hz - 10 kHz: 3 - 0.03 A/m
Basic standard low energy electrical fast transients, bursts:
According EN 61000-4-4 Mains: fast transients: 1 kV; signal and control data lines: 0.5 kV
Basic standard high energy surges:
According EN 61000-4-5 Mains: surges: 1 kV CM and 0.5 kV DM.
Basic standard voltage dips, short interruptions, variations:
According EN 61000-4-11 Mains: voltage dips 100% for 1 period, 60% for 5 periods, > 95% for 5 seconds.
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Intentionally left blank.
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Section 2 - Central Devices

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10 DCN-WCCU Wireless
Central Control Unit

10.1 Introduction

The DCN-WCCU Wireless Central Control Unit controls the system. The central control unit can operate with or without a control PC.
Note
The DCN-WCCU-UL is the CSA/UL approved version of the DCN-WCCU.
10.2 Controls, connectors and
indicators
10.2.1 Front view
The front of the central control unit (refer to figure 10.1) contains: 1 On/off switch - Starts and stops the central control
unit.
2 Display - Shows the configuration menu (refer to
10.6).
3 Knob - Operates the configuration menu (refer to
10.6). You can also change the volume level of the system with the knob.
4 Headphones socket - Connects headphones to
the central control unit (refer to 10.5.4).
Caution
Riskofelectricshock.
Donot open.
Avis
Riskofelectricshock.
Donot open.
Network
12
Trunk
12
8 9
figure 10.1: Front and rear views
23 41
5
RS232 Port1
RS232
Fault
AudioIn 1 AudioOut 1 AudioIn 2 AudioOut 2
Port 2
OK Fail
6 7
Mains
230
115:100-120V 50-60Hz T2.5A250V 230:220-240V 50-60Hz
T2AH 250V
10 13 1411 12 11 12
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10.2.2 Rear view
The rear of the central control unit (refer to figure 10.1) contains: 5 RS232 ports - Connects a PC, remote controllers or
video cameras to the central control unit (refer to
10.5.8).
6 Power inlet - Connects the central control unit to
the mains power supply with a power cable (refer to
10.5.1).
7 Ground screw - Connects the central control unit
to ground.
8 Optical network sockets - Connects the central
control unit to the optical network (refer to 10.5.3).
9 DCN sockets - Connect the central control unit to
the DCN (refer to 10.5.2).
10 Fault contact - Connects the central control unit to
devices to sense the condition of the central control unit (refer to 10.5.7).
11 Audio inputs - Connect the central control unit to
external analog audio sources (refer to 10.5.5).
12 Audio outputs - Connect the central control unit
to external analog audio devices (refer to 10.5.6).
13 Voltage selector - Selects the voltage on which the
central control unit must operate (refer to 10.5.1).
14 Fuse holder - Prevents damage to the internal
power supply unit of the central control unit (refer to
10.5.1).

10.3 Internal settings

10.3.1 Ove rvie w
Warning
Before you open the central control unit, discon­nect it from the mains power supply. Electrical discharges from the mains power supply can kill you.
Caution
Before you open the central control unit, take measures to prevent electro-static discharges.
The PCBs of the central control unit (refer to figure
10.2) contain:
15 Software LEDs - Show the condition of the
software of the central control unit. When the software runs correctly, the yellow and green LEDs flash.
16 S600 switches - Reserved (refer to 10.3.2). 17 X605 jumper block - Enables or disables the
watchdog (refer to 10.3.5).
18 Reset switch - Starts the central control unit again. 19 Optical network processor indicator - Comes
on when the optical network processor operates correctly.
20 S500 switches - Configure the RS232 ports of the
central control unit (refer to 10.3.3).
21 X600 jumper block - Connects and disconnects
the internal back-up battery of the central control unit (refer to 10.3.4).
22 X104 jumper block - Connects and disconnects
the mechanical ground and the electrical ground
(refer to 10.3.6).
23 Fuse - Prevents damage to the electronic
components in the central control unit.
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X155
S601
T1K4K1R1
L1N1
M1
P1
R2
K2T2
L2M2
N2
P2
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L3
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T4
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L4
P4
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L11P11
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L13P13
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K14
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M14
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L14
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X600
15
B601 B602 B604
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X605
17 1618
S600
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H1
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B2
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J2 F2
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D3C1A3
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B13
A13
C13
D13
E13
G13
F13
H13
J13
B14 A14
D14
C14
E14
G14
H14
F14
J14
D15 A15
B15C15
E15
F15
H15J15 G15
S800
B16C16D16
A16
E16
F16
H16 G16J16
X1000
ON
2
31864
S1000
57
S500
B1000
F100
19
20
figure 10.2: Internal settings
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21
X104
2322
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10.3.2 S600 switches
table 10.1: S600 switches (* = default)
Switch Position Description
S600-1 ON*
OFF
S600-2 ON
OFF*
S600-3 ON
OFF*
S600-4 ON
OFF*
S600-5 ON
OFF*
S600-6 ON
OFF*
S600-7 ON
OFF*
S600-8 ON
OFF*
Reserved. Do not change the position of this switch.
Reserved. Do not change the position of this switch.
Reserved. Do not change the position of this switch.
Reserved. Do not change the position of this switch.
Reserved. Do not change the position of this switch.
Reserved. Do not change the position of this switch.
Reserved. Do not change the position of this switch.
Enables the download of new firmware. Normal operation.
10.3.3 RS232 configuration
Use the S500 switches to configure the RS232 ports of the central control unit (refer to table 10.2 and table
10.3).
table 10.2: RS232 protocol (* = default)
Protocol Port 1 Port 2
S500-1 S500-2 S500-5 S500-6 Open interface Off Off Off Off Terminal Off On Off On Full On* Off* On Off Camera control On On On* On*
table 10.3: RS232 baudrate (* = default)
Baudrate Port 1 Port 2
S500-3 S500-4 S500-7 S500-8
9.6k Off Off Off Off
19.2k Off On Off* On*
57.6k On Off On Off
115.2k On* On* On On
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10.3.4 Internal back-up battery
Use the X600 jumper block to connect and disconnect the internal back-up battery of the central control unit (refer to table 10.4).
Note
When your central control unit is new, you must energize the central control unit to charge the internal back-up battery. The internal back-up battery is fully charged after 24 hours.
table 10.4: X600 jumper block (* = default)
Jumper shunt Description
1 and 2 * Connects the internal back-up
battery. When you stop the central control unit, the memory of the central control unit is not erased.
2 and 3 Disconnects the internal
back-up battery. When you stop the central control unit, the memory of the central control unit is immediately erased. The memory of the central control unit contains:
The license code
The settings of the interpreter desks.
Note
You only have a license code when you use the system in combination with:
• The PC Control Software
A remote controller
Note
The subscription list is not erased when the internal back-up battery is empty. The subscription list is stored in another location.
10.3.5 Watchdog
Use the X605 jumper to enable or disable the watchdog of the central control unit (refer to table 10.5).
table 10.5: X605 jumper block (* = default)
Jumper shunt Description
Present The watchdog is disabled. The
central control unit does not start again after an error.
Not present* Enables the watchdog. The
central control unit starts again after an error.
Note
When you disable the watchdog, the system can operate incorrectly.
10.3.6 Ground
Use the X104 jumper block to connect and disconnect the system ground and the ground of the central control unit (refer to table 10.6). For example, you can connect the system ground and the ground of the central control unit to prevent hum.
table 10.6: X104 jumper block (* = default)
Jumper shunt Description
1 and 2 Connects the system ground
and the ground of the central control unit.
2 and 3 * Disconnects the system ground
and the ground of the central control unit.
Note
When you connect the system ground to the ground of more than one device in the system, you can create ground loops. Ground loops can cause hum.
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10.4 Installation

Install the central control unit in a 19-inch rack system or on a flat surface. Four feet and two brackets are supplied with the central control unit (refer to figure
10.3).
figure 10.3: Installation
table 10.7: Physical characteristics
Dimensions (h x w x d), flat surface:
92 x 440 x 400 mm (without brackets, with feet)
Dimensions (h x w x d), 19-inch rack system:
88 x 483 x 400 mm (with brackets, without feet)
Weight:
6.7 kg (without brackets, without feet)
Note
When you install the central control unit in a 19-inch rack system, the central control unit extends 36 mm in front of the brackets.

10.5 External connections

10.5.1 Power supply
To connect the central control unit to a mains power supply do as follows:
Note
The DCN-WCCU is configured for a voltage of 220 - 240 V(AC). The DCN-WCCU-UL is configured for a voltage of 100 - 120 V(AC).
1 Set the voltage selector on the rear of the central
control unit to the correct position (refer to table
10.8).
table 10.8: Voltage selector
Power supply voltage Voltage selector
90 to 132 V(AC) 115 198 to 264 V(AC) 230
2 Make sure that the fuse holder in the rear of the
central control unit contains the correct fuse (refer to table 10.9).
table 10.9: Fuses
Voltage selector Fuse
115 T2.5A 250 V (UL 248) 230 T2AH 250 V (IEC 60127)
3 Connect a locally approved power cable to the
central control unit (refer to figure 10.4).
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figure 10.4: Power supply
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LED
4 Connect the power cable to a power supply.
Warning
Make sure that the mains power supply is grounded. Electrical discharges from the mains power supply can kill you.
10.5. 2 DC N
Connect the trunk of the DCN to the DCN sockets of the central control unit (refer to figure 10.5).
LED
figure 10.5: DCN
Each DCN socket has a red LED that comes on if there is an overload (refer to figure 10.5 and 3.5.4).
table 10.10: DCN connection
Number of connections:
2x DCN socket
Location:
Rear side
Power supply:
max. 65 W (refer to figure 2.1)
10.5.3 Optical network
Connect the trunk of the optical network to the optical network sockets of the central control unit with optical network cables (refer to figure 10.6).
figure 10.6: Optical network
Each optical network socket has a red LED that comes on if there is an overload (refer to figure 10.6 and 3.5.4).
table 10.11: Optical network connections
Number of connections:
2x proprietary sockets
Location:
Rear side
Nodes:
2
Power supply:
max. 65 W (refer to figure 3.1)
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Audio In
2
3
4
1
5
10.5.4 Headphones
You can connect headphones to the headphones socket of the central control unit. The headphones must have a
3.5 mm plug (refer to figure 10.7).
2 3 1
figure 10.7: 3.5 mm headphones plug, connection
table 10.12: 3.5 mm headphones plug, connection
Number Signal
1Left 2 Common 3Right
Note
You can also connect mono headphones to the headphones socket.
10.5.5 Audio inputs
You can connect an external analog audio source to the audio inputs of the central control unit. The central control unit has two audio inputs. Each audio input has (refer to figure 10.8):
1 XLR socket for balanced signals. The electric
1 double cinch socket for unbalanced signals.
circuits behind the XLR sockets contain transformers.
Note
The audio inputs change stereo signals in mono signals.
You can select the signal that is available on the headphones socket with the configuration menu (refer to 10.6.5).
figure 10.8: Audio input, connection
table 10.13: Audio input, connection
Pin Type Signal Description
1 XLR Xternal Shield/ground 2 Live Positive 3 Return Negative 4 Cinch Live Signal in 5 Return Shield/ground
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Audio Out
1
3
4
2
5
You can select the procedure that is used to send audio signals through the central control unit with the audio routing modes (refer to 10.6.8).
Note
You can only connect line level sources to the audio inputs of the central control unit. It is not possible to connect microphone sources.
table 10.14: Audio input details, line level signals
Number of connections:
1x XLR socket for each audio input
1x double cinch socket for each audio input
Location:
Rear side
Cable:
Shielded cable
Maximum level:
Refer to appendix A
Nominal level:
Refer to appendix A
Frequency response:
-3 dB @ 30 Hz and 20 kHz
Impedance:
XLR: 22 k
•Cinch: 12 k
Signal-to-noise ratio:
> 85 dBA @ max. level
CMRR:
> 60 dB @ 100 Hz > 50 dB @ 1 kHz
Crosstalk attenuation:
> 85 dB @ max. level
Distortion:
< 0.1% @ 100 Hz @ -3 dB of the max. input
10.5.6 Audio outputs
You can connect an audio recording device or a public address system to the audio outputs of the central control unit. The central control unit has two audio outputs. Each audio output has (refer to figure 10.9):
1 XLR plug for balanced signals. The electric circuits behind the XLR plugs contain transformers.
1 double cinch socket for unbalanced signals.
Note
The two cinch sockets contain the same mono signal.
figure 10.9: Audio output, connection
table 10.15: Audio output, connection
Pin Type Signal Description
1 XLR Xternal Shield/ground 2 Live Positive 3 Return Negative 4 Cinch Live Signal out 5 Return Shield/Ground
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OK Fail
You can select the procedure that is used to send audio signals through the central control unit with the available audio routing modes (refer to 10.6.8).
table 10.16: Audio output details
Number of connections:
1x XLR plug for each audio output
1x double cinch socket for each audio output
Location:
Rear side
Cable:
Shielded cable
Maximum level:
Refer to appendix A
Nominal level (audio output 1):
Refer to appendix A
Nominal level (audio output 2):
Refer to appendix A
Frequency response:
-3 dB @ 30 Hz and 20 kHz
Impedance:
< 100
Signal-to-noise ratio:
> 89 dBA @ max. level
Crosstalk attenuation:
> 85 dB @ max. level
Distortion:
< 0.1% @ 100 Hz @ - 3 dB of the max. input
10.5.7 Fault contact
Use the fault contact to send the condition of the central control unit to external devices. If the central control unit operates correctly, the OK pins are internally connected. The central control unit internally connects the Fail pins when:
The central control unit is stopped.
The internal power supply unit operates incorrectly.
The central control unit does a reset.
figure 10.10: Fault contact
table 10.17: Fault contact
Number of connections:
4-pole plug
Location:
Rear side
Signal:
Potential-free change-over relay
Voltage:
Max. 24 V(DC), 15 V(AC)
Current:
Max. 500 mA
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10.5.8 RS232 ports
You can connect a PC, remote controllers or video cameras to the RS232 ports of the central control unit (refer to the DCN Next Generation Installation and User Instructions). The central control unit has 2 RS232 ports (refer to figure 10.11). You can set the protocol and the baudrate of the RS232 ports with the S500 switches (refer to 10.3.3).
15
9 6
figure 10.11: RS232 port, connection
table 10.18: RS232 port, connection
Pin Definition Description
1 DCD Data Carrier Select 2 RxD Receive Data 3TxDTransmit Data 4 DTR Data Terminal Ready 5 SG Signal Ground 6 DSR Data Set Ready 7 RTS Request To Send 8 CTS Clear To Send 9RI Ring Indicator
table 10.19: RS232 ports
Number of connections:
2x 9-pole SUB-D socket
Location:
Rear side
Maximum cable length:
9600 baud: 15 m, >9600 baud: 3 m
Signal levels:
EIA RS232-C interface specifications
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10.6 Configuration menu

10.6.1 Ove rvie w
Use the configuration menu of the central control unit to configure the central control unit and the system (refer to figure 10.12).
Main
Fault status
1
2Monitoring
3Enquiry
2A
Source/ Volume
3A CCU
3Aa
3B WAP
3Ba
Serial Number
3Ab
HW Version
3Ac
FPGA Version
3Ad
Serial Number
3Bb
HW Version
3Bc
FPGA Version
3Bd
SW Version
3Ae
FW Version
SW Version
4H
Floor Distr.
4I
Intercom
4Ia
Assign Operator
4Ib
Menu item
Menu item with sub-menu
4L
4K
De-init
Wireless
4J
4Ja
Auto mic off
4Jb
Assign Chairman
4M
Defaults
Unit Name
System ID
4Jc
Repetition
4Jd
WAP
4F
4E
Routing I/O2
4D
Level
Mic. Mode
4C
Loudspkr
4B
4Ba
4A
Setup
Back
figure 10.12: Configuration menu
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4
<
Wireless Mode
Bass
4Bb
Treble
4G
Mic. Priority
Att. Tones
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10.6.2 Navigation and operation
10.6.2.1 Menu items
The configuration menu consists of menu items. Refer to figure 10.13 for the parts of a menu item.
Main menu
number
figure 10.13: Menu item parts
10.6.2.2 Number and characters
Identify menu items by the main menu number sub-menu character. The number identifies the main menu to which the menu item is connected. The characters identify the sub-menus to which the menu item is connected.
10.6.2.3 Menu title
Each menu item has a title. The title gives a short description of the function of the menu item.
10.6.2.4 Parameters and values
Most menu items have one or more parameters. To make adjustments, change the values of the parameters.
10.6.2.5 VU meter
Some menu items have a VU meter. The VU meter shows the volume levels of signals. The VU meter has seven rows.
Sub-menu
character
Value VU meter
Menu item
title
Parameter
10.6.2.6 To open the main menu
To open the main menu, push the knob in the Main menu item. The main menu number and the menu item title flash.
10.6.2.7 To go through the main menu
Turn the knob clockwise in the main menu to go to the next menu item in the main menu.
Turn the knob counterclockwise in the main menu to go to the previous menu item in the main menu.
10.6.2.8 To open a sub-menu
When the display shows a menu item that has three dots (...), the menu item gives access to a sub-menu. To open the sub-menu, push the knob in a menu item that has three dots. (The last sub-menu character and the menu item title flash.)
Note
To open the Setup sub-menu, you must push and hold the knob for more than 3 seconds.
10.6.2.9 To select menu items in a sub-menu
Turn the knob clockwise in a sub-menu to go to the next menu item in the sub-menu.
Turn the knob counterclockwise in a sub-menu to go to the previous menu item in the sub-menu.
10.6.2.10 To open a menu item
1 Turn the knob to select the applicable menu item. 2 When the display shows the correct menu item, push
the knob to open the menu item. The display shows a cursor.
table 10.20: VU meter
VU meter Description
One row on No signal Seven rows on Maximum signal Triangle Clipped signal Minus Muted by control input
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10.6.2.11 To select a parameter
1 Open the correct menu item (refer to 10.6.2.10). 2 Turn the knob to move the cursor to the parameter
that is shown.
3 On the parameter, push the knob. The parameter
flashes. 4 Turn the knob to go to the applicable parameter. 5 When the display shows the applicable parameter,
push the knob to select the parameter. The display
shows a cursor.
10.6.2.12 To change the value of a parameter
1 Select the applicable parameter (refer to 10.6.2.11). 2 Turn the knob to move the cursor to the value. 3 Push the knob. The value flashes. 4 Turn the knob to go to the value. 5 When the display shows the correct value, push the
knob to select the value. The display shows a cursor.
10.6.2.13 To close a menu item
1 Turn the cursor to the last character that identifies
the menu item. 2 Push the knob to close the menu item. The last
character and the menu item title flash.
10.6.2.16 Example
For an example, do as follows to change the level of audio input 2 of the central control unit:
Note
Make sure that when you do this example, you start from the Main menu item.
1 Push the knob to open the main menu.
2 Turn the knob to go to 4 Setup ...
3 Push-and-hold the knob for 3 seconds to open the
sub-menu.
10.6.2.14 To close a sub-menu
1 Turn the cursor to go to the second last character
that identifies the menu item. 2 Push the knob to close the sub-menu. The last
character and the menu item title flash.
10.6.2.15 To close the main menu
1 From the main menu, turn the primary knob
clockwise to go to the < Back menu item. 2From the < Back menu item, push the knob to go to
the Main menu item.
4 Turn the knob to go to 4D Level.
5 Push the knob to open the menu item.
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6 Turn the knob to move the cursor to the parameter
that is shown.
7 On the parameter, push the knob.
8 Turn the knob to go to Output 2.
9 Push the knob to select Output 2.
12 Turn the knob to change the value.
Note
In this example, the knob is turned counterclockwise to decrease the value from 0 dB to -18 dB. Turn the knob clockwise to increase the value.
13 Push the knob to select the value.
14 Turn the knob to go to the main menu number.
10 Turn the knob to move the cursor to the value that is
shown.
Note
In this example, the value is 0 dB. It is possible that your display shows a different value.
11 On the value, push the knob.
15 Push the knob to go back to the main menu.
16 Turn the knob clockwise to go to the < Back menu
item.
17 Push the button to go to the Main menu item.
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10.6. 3 Main
When you start the central control unit, the display first shows Starting. The display then shows the Main menu item:
The Main menu item contains:
An indicator that shows the volume level of the
loudspeakers of the contribution devices. Turn the
knob to change the volume level (refer to 12.6).
The name of the central control unit. The default
name is CCU. You can change the name with the
4L Unit Name menu item (refer to 10.6.8).
The microphone mode and the maximum number
of activated microphones. You can change the
microphone mode and the maximum number of
activated microphones with the 4C Mic. Mode menu
item (refer to 10.6.8).
Note
When a PC is connected to the central control unit, the Main menu item also shows PC.
10.6.4 Fault status
Use the 1 Fault Status menu item to see the condition messages of the central control unit. If there is more than one message, the display shows the most important message (refer to table 10.21).
table 10.21: Messages (low to high importance)
Messages Description
No Fault The central control unit
operates correctly.
Low Battery The battery pack of a
wireless device is empty within 1 hour.
Bad Signal A wireless device has a
bad signal reception.
Incompatible SW The wireless access
point has a incompatible software version.
Invalid Software The central control unit
cannot start. The central control unit does not contain the correct software.
Downloading The central control unit
downloads software.
Note
When the condition of the central control unit changes, the Main menu item shows a message (refer to table 10.21). Such a message goes out of view when you push the knob.
Note
If you do not turn or push the knob for three minutes, the display automatically goes back to the Main menu item. The display does not automatically go back to the Main menu item from these menu items and their sub-menus:
•2ASource/Volume
4Ia Assign Operator
4Ib Assign Chairman
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10.6.5 Monitoring
Use the 2 Monitoring menu item to open the Monitoring sub-menu (refer to table 10.22).
table 10.22: Monitoring sub-menu (* = default)
Menu item Parameter Value Description
2A Source/Volume Signal:
Floor Input 1 Input 2 Output 1 Output 2
Vol ume leve l :
-31 to 0 dB (16 dB*)
-31 to 0 dB (16 dB*)
-31 to 0 dB (16 dB*)
-31 to 0 dB (16 dB*)
-31 to 0 dB (16 dB*)
The signal that is available on the headphones socket of the central control unit and its volume level.
10.6.6 DCN-WCCU Enquiry
Use the 3A CCU menu item to open the CCU sub-menu. The menu items in this sub-menu give general data about the central control unit (refer to table
10.23).
Note
This data must be mentioned in all service requests and failure reports.
table 10.23: DCN-WCCU Enquiry sub-menu (* = default)
Menu item Parameter Value (read-only) Description
3Aa Serial Number --- e.g. 20.0.00362 The hexadecimal serial
number of the central control unit.
3Ab HW Version --- e.g. 3.0 The version number of the
hardware of the central control unit.
3Ac FPGA Version --- e.g. 1.06 The version number of the
FPGA firmware of the central control unit.
3Ad SW Version --- MM.mm.bbbb
e.g. 2.20.1234
3Ae FW Version --- e.g. 4.00.1234 The version number of the
The version number of the software of the central control unit.
MM: Major release no.
mm: Minor release no.
bbbb: build no.
firmware of the central control unit.
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10.6.7 DCN-WAP Enquiry
Use the 3B WAP menu item to open the WAP sub-menu. The menu items in this sub-menu give general data about the wireless access point (refer to table 10.23).
Note
This data must be mentioned in all service requests and failure reports.
table 10.24: DCN-WAP Enquiry sub-menu (* = default)
Menu item Parameter Value (read-only) Description
3BA WAP Serial Number --- e.g. 1E.0.00001 The hexadecimal serial
number of the wireless access point.
3Bb WAP HW Version --- e.g. 01.00 The version number of the
hardware of the wireless access point.
3Bc WAP FPGA Version --- e.g. 01.00 The version number of the
FPGA firmware of the wireless access point.
3Bd WAP SW Version --- MM.mm.bbbb
e.g. 2.20.0055
The version number of the software of the wireless access point.
MM: Major release no.
mm: Minor release no.
bbbb: build no.
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10.6. 8 Set up
Use the 4 Setup menu item to open the Setup sub-menu. You can use the menu items in this sub-menu to configure the central control unit and the system (refer to table 10.25 and table 10.26).
table 10.25: Setup sub-menu (* = default)
Menu item Parameter Value Description
4A Wireless Mode --- On*
Sleep Off Subscription
4B Loudspkr --- --- Gives access to the
4C Mic. Mode Mode:
Open* Override PTT
4D Level Signal:
Input 1 Input 2 Output 1 Output 2
4E Routing I/O 2 --- Mode:
4F Att. Tones Event:
Priority Voting
4G Mic. Priority --- Temporarily off*
NOM:
1, 2*, 3 1, 2*, 3 1, 2*, 3
Level:
-6 to 6 dB (0 dB*)
-6 to 6 dB (0 dB*)
-24 to 6 dB (0 dB*)
-24 to 6 dB (0 dB*)
Recorder* Equalized PA Mix-minus Insertion
Chime:
Off, 1*, 2, 3 Off*, 1, 2, 3
Permanently off
Sets the mode of the wireless network (refer to
12. 3) .
Loudspkr sub-menu (refer to 10. 6. 9) . The microphone mode of the DCN and the maximum number of activated delegate microphones (refer to
12. 4) . The nominal levels of the audio inputs and the audio outputs of the central control unit.
The audio routing mode of the central control unit (refer to 12.6).
The attention chimes of the system (refer to 12.7).
The action taken by the system when the chairman releases the priority button (refer to
12. 8) .
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table 10.26: Setup sub-menu (* = default)
Menu item Parameter Value Description
4H Floor Distr. --- On*, Off Enables or disables floor
distribution (refer to 12.9).
4I Intercom ... --- --- Gives access to the
Intercom sub-menu (refer to 10.6.10).
4J Wireless --- --- Gives access to the
Wireless sub-menu (refer to 10.6.11). When the wireless access point is not connected, the central control unit shows Not Available.
4K De-Init ... --- --- Gives access to the
De-initialization menu item (refer to 10. 6.12) .
4L Unit Name --- Name:
CCU* Custom name
4M Defaults ... --- --- Gives access to the Reset
The name of the central control unit (max. 16 characters).
menu item (refer to
10. 6.13)
10.6. 9 Loud spkr
Use the menu items in the 4B Loudspkr sub-menu to set the levels of the bass and treble output to the loudspeakers of the contribution devices (refer to table
10.27).
table 10.27: Loudspkr sub-menu (* = default)
Menu item Parameter Value Description
4Ba Bass --- -12 to 12 dB (0 dB*) The level of the bass
output.
4Bb Treble --- -12 to 12 dB (0 dB*) The level of the treble
output.
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10.6.10 Intercom
Use the menu items in the 4I Intercom sub-menu to identify the location of the chairman and the operator (refer to table 10.28 and 12.10).
table 10.28: Intercom sub-menu (* = default)
Menu item Parameter Value Description
4Ia Assign Operator No*
Yes
4Ib Assign Chairman No*
Yes
Does not identify the location of the operator. Identifies the location of the operator. Does not identify the location of the chairman. Identifies the location of the chairman.
10.6.11 W ireles s
Use the menu items in the 4J Wireless sub-menu to configure the wireless network of the system (refer to table 10.29).
table 10.29: Wireless sub-menu (* = default)
Menu item Parameter Value Description
4Ja Auto mic off Enabled*, Disabled Enables or disables the
auto microphone off function (refer to 12.4.5).
4Jb System ID 0* to 15 Sets the identifier of the
system (refer to 11.6.2).
4Jc Repetition 0* to 2 Sets the number of
repetitions of audio packets (refer to 12.5).
4Jd WAP Carrier:
0* to 2
Power: High* Medium Low Off
Sets the carrier of the wireless access point (refer to 11.6.3). Sets the power of the wireless access point (refer to 11.6.4).
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10.6.12 De-init
Use the 4K De-initialize menu item in the 4K De-Init sub-menu to erase the addresses of the contribution devices and the interpretation devices (refer to table
10.30 and 12.2).
table 10.30: De-init sub-menu (* = default)
Menu item Parameter Value Description
4K De-initialize None*
Wired
Wireless
Does not erase the addresses. Erases the addresses of the wired devices in the DCN. Erases the subscription list of the devices in the wireless network.
10.6.13 Defaults
Use the 4M Defaults sub-menu to set all parameters to the default values in the configuration menu (refer to table 10.31). This includes the values of the parameters of the interpreter desks. These parameters are not changed:
The subscription list of wireless devices
The name of the central control unit
table 10.31: Defaults sub-menu (* = default)
Menu item Parameter Value Description
4M Reset to defaults? No*
Yes
Does not put back the default values. Sets all parameters to the default values.
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1
2
11 DCN-WAP Wireless
Access Point

11.1 Introduction

The wireless access point:
Sends signals from the central control unit to the
wireless devices.
Receives signals from the wireless devices and sends
them to the central control unit.

11.2 Firmware

The version numbers of the software of the wireless access point (refer to 10.6.7) and the central control unit (refer to 10.6.6) must be the same.
Note
Use the Download and License Tool to send new software to the wireless access point.

11.3 Controls, connectors and indicators

The wireless access point contains: 1 Status LEDs - Give information about the
condition of the wireless network and the wireless access point (refer to 11.7).
2 Optical network sockets - Connect the wireless
access point to the optical network (refer to 11.5.1).
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figure 11.1: Top and bottom views
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02
01
TORX 10

11.4 I nst a lla t ion

11. 4.1 G e ner al
Caution
Do not open the wireless access point. Any hardware change makes the product certificates invalid. Only qualified personnel can open the wireless access point.
table 11.1: Physical characteristics
Dimensions (h x w x d):
284.5 x 201.5 x 59 mm
Weight:
DCN-WAP: 643 g (without bracket)
Bracket: 264 g
11.4.2 Wall or ceiling
You can use the bracket to attach the wireless access point to a wall or ceiling. Refer to figure 11.2.
figure 11.2: Installation, wall and ceiling
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02
01
TORX 10
11.4.3 Tripod
You can use the bracket to install the wireless access point on an LBC1259/00 Universal Floor-stand. Refer to figure 11.3.
01
11.4.4 Logo
You can change the orientation of the logo. Refer to figure 11.4:
figure 11.3: Installation, LBC1259/00
figure 11.4: Installation, logo
02
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11.5 External connections

11.5.1 Optical network
Connect the optical network sockets of the wireless access point to the optical network with optical network cables (refer to figure 11.5).
figure 11.5: Optical network

11.6 Configuration

11.6.1 Introduction
Use the configuration menu of the central control unit to configure the wireless access point.
11.6.2 System ID
Note
Set the correct system identity before you do the installation of the system (refer to section
12.2.2). When you change the system identity after you did the initialization, you must do the initialization again.
Set the system identity with the 4Jb System ID menu item. Adjacent systems must have different system identities (refer to figure 11.6) and different carriers (refer to figure 11.7)
table 11.2: Optical network connections
Number of connections:
2x proprietary sockets
Location:
Bottom side
Nodes:
1
Power consumption
4 W
figure 11.6: System IDs for adjacent systems
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11.6.3 Carrier
Set the carrier of the wireless access point with the 4Jd WAP menu item. Adjacent systems must have different carriers (refer to figure 11.7) and different system identities (refer to figure 11.6).
11.6.4 Power value
The wireless access point has a typical maximum coverage area of 30 m by 30 m. To determine the exact coverage area the coverage test kit can be used. The maximum coverage area of the wireless access point is dependent upon its power (refer to table 11.3). Set the power of the wireless access point with the 4Jd WAP menu item.
table 11.3: Power values
Value Typical Coverage
Area (m)
High 30 x 30 Medium 20 x 20 Low 10 x 10 Off 0
You can change the power value after you did the initialization of the system (refer to 12.2.2). When you decrease the power value, some wireless devices can show that they cannot find the wireless network (refer to
14.8.6).
figure 11.7: Carriers for adjacent systems
You can change the carrier after you did the initialization of the system (refer to 12.2.2).
Note
When you change the carrier during a discussion or conference, you can cause a short audio disruption.
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11.7 Op era t ion

The LEDs on the wireless access point give information about the condition of the wireless network and the wireless access point (refer to figure 11.8 and table 11.4).
Note
You can change the condition of the system with the configuration menu of the central control unit (refer to 10.6.11).
ABC CBA
figure 11.8: Status LEDs
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table 11.4: Status LEDs
Blue (A) Red (B) Blue (C) Description
Flashing (fast) Off Off The wireless mode is set to On (refer to table 10.25), and no
wireless contribution devices are connected to the system.
Flashing (fast) Off Flashing (fast) No wireless contribution devices are connected, and menu
item 3B, one of the 3B submenus, or 4Jd of the configuration menu of the central control unit is open. Use these menu items to configure the wireless access point (refer to figure
10.12).
Flashing (fast) Off On The wireless mode is set to Subscription (refer to table
10.25), and no wireless contribution devices are connected to the system.
Flashing (slow) Off Flashing (fast) The wireless mode is set to Sleep (refer to table 10.25), and
menu item 3B, one of the 3B submenus, or 4Jd of the configuration menu of the central control unit is open. Use these menu items to configure the wireless access point
(refer to figure 10.12). Flashing (slow) Off Off The wireless mode is set to Sleep (refer to table 10.25). Off Flashing (fast) Off The system prepares a software transfer to the wireless
access point. Off Flashing
(slow)
Off The wireless mode is set to Off (refer to table 10.25), or the
power value of the wireless access point is set to Off (refer to
table 11.3). Off Off Off The wireless access point is off. Off On Off The wireless access point lost connection with the optical
network. On Flashing (fast) Off The system sends software to the wireless access point. On Off Flashing (fast) One or more wireless contribution devices are connected to
the system, and menu item 3B, one of the 3B submenus, or
4Jd of the configuration menu of the central control unit is
open. Use these menu items to configure the wireless
access point (refer to figure 10.12). On Off On The wireless mode is set to Subscription (refer to table
10.25), and one or more devices are connected to the
system. On Off Off The wireless mode is On (refer to table 10.25), and one or
more wireless contribution devices are connected to the
system. On On On The central control unit is not compatible with the wireless
access point. The central control unit does not contain the
correct software.
Note:
Flashing (fast) = one second on, one second off.
Flashing (slow) = one sec on, three seconds off.
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12 System configuration

12.1 Introduction

The central control unit controls the system. Use the configuration menu of the central control unit to configure the system.

12.2 Initialization

12.2.1 Introduction
Each active DCN device in the system must have an address (refer to 2.5.1). The central control unit cannot send data to an active DCN device that does not have an address. During the initialization, the central control unit gives addresses to the active DCN devices.
Each wireless device in the system must have a subscription. The central control unit cannot send data to a wireless device that does not have a subscription. During the initialization, the wireless access point gives subscriptions to the wireless devices.
2 Set the value of the parameter in the menu item to
Wired. The addresses of all active devices in the DCN are erased. All LEDs on all active devices in the DCN come on.
Note
In the next step, you erase the subscriptions from the wireless devices and the subscription list from the wireless access point.
3 Set the value of the parameter in the menu item to
Wireless. The LED around the microphone button of the wireless discussion units comes on as yellow for 2 s.
12.2. 2 Sys t em
You must do the initialization of the system before you can use the system:
Note
It is not necessary to do an initialization when the system is re-installed in another location and contains the same devices after it is re-installed. Active DCN devices hold their addresses. Wireless devices hold their subscriptions.
1 Select the 4K De-initialize menu item of the
configuration menu of the central control unit.
4 Select the 4A Wireless Mode menu item of the
configuration menu of the central control unit.
5 Set the value of the parameter in the menu item to
Subscription.
6 Push the microphone button of each active device in
the DCN. When the central control unit gives an address to an active DCN device, the LEDs of the active device go off.
Note
Do not push more than one microphone button at the same time. The central control unit cannot give addresses to more than one active device at the same time.
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7 Push the microphone button of each wireless device.
When the central control unit gives a subscription to the wireless discussion unit, the LED around the microphone button comes on as green for 2 s.
12.2.3 Extra DCN devices
You can also give addresses to active devices in the DCN after you did the initialization of the system.
Push the de-init switch of the active DCN device for less than half a second to erase the address of the active device.
Push and hold the de-init switch of the active DCN device for more than one second to erase the address and do the initialization at the same time.
12.2.4 Extra wireless devices
You can also give subscriptions to wireless device after you did the initialization of the system. Refer to 14.6 for instructions.

12.3 Wireless modes

12.3.4 Off
If you set the wireless mode to Off, the wireless network is deactivated. All wireless devices with a subscription are automatically deactivated.
12.3.5 Subscription mode
If the wireless mode is Subscription, the wireless network is in the subscription mode. Use the subscription mode to give subscription to extra wireless devices (refer to 12.2.4).
Note
The central control unit automatically goes back to the previous wireless mode 15 minutes after the last wireless device got a subscription.
12.3.1 Introduction
You can set the wireless mode of the system with the 4A Wireless Mode menu item.
12.3. 2 On
If the wireless mode is On, the wireless network is activated. The delegates and chairman can use the wireless devices that:
Have a subscription, and
Are activated.
12.3.3 Sleep
If the wireless mode is Sleep, the wireless network is in the sleep mode. Use the sleep mode to increase the time between charge of the batteries (for example, during a long break in a discussion or conference).
Note
The wireless devices are not deactivated in the sleep mode.
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12.4 Microphone modes

12.4.1 Introduction
Select the microphone mode with the 4C Mic. Mode menu item (refer also to 10.6.8). You must also set the maximum number of activated delegate microphones.
Note
The system has 4 audio channels. The delegates can use three channels, the chairmen can use one channel. When more than one chairman devices are installed in the system, the next chairman that activates his or her microphone automatically deactivates the microphone of the previous chairman.
12.4. 2 Ope n
In the Open mode, delegates can activate their microphones with the microphone button on their contribution devices. When the maximum number of delegates speak, the next delegate that activates his or her microphone makes a request-to-speak. The microphone is not activated until another delegate deactivates his or her microphone.
12.4.3 Override
In the Override mode, delegates can activate their microphones with the microphone button on their contribution device. When the maximum number of delegates speak, the next delegate that activates his or her microphone automatically deactivates the microphone that was activated for the longest time.
Note
Microphones of chairman units can always be activated in the Override mode.
12.4.4 PTT
In the PTT (push-to-talk) mode, the delegates can activate their microphones with the microphone button on their contribution devices. The microphone is activated as long as the microphone button is pushed. When the maximum number of delegates speak, the other delegates cannot activate their microphones.
Note
Microphones of chairman units can always be activated in the PTT mode.
Note
Microphones of chairman devices can always be activated in the Open mode.
12.4.5 Auto mic off
Enable or disable the auto microphone off function with the 4Ja Auto mic off menu item. When the auto microphone off function is enabled, the microphones of the wireless devices are automatically deactivated when they are not used for 30 seconds.
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DCN-WCCU
DCN-SW
3<
1
2
2
1
C
C
IIC
Optical network
Interpretation devices
C Contribution devices
Legend
Chime
I
C
O
+
+
+

12.5 Repetition rate

When other wireless networks cause interference, the audio quality can decrease. In some cases, you can increase the repetition rate of the audio packets to improve the audio quality. You can change the repetition rate of the audio packets with the 4Jc Repetition menu item.
Note
When you increase the repetition rate, the audio delay is increased.

12.6 Audio routing modes

12.6.1 Introduction
You can set the audio routing mode of the system with the 4E Routing I/O 2 menu item. The functions of audio input 1 and audio output 1 of the central control unit are the same in each audio routing mode. The signal on audio input 1 is always added to the floor signal. The signal on audio output 1 is always suitable to connect the system to an external public address system (for example, Praesideo).
12.6.2 Recorder
In the Recorder mode, audio output 2 of the central control unit transmits a signal that you can connect to an external audio recorder (refer to figure 12.1). The central control unit has no effect on the volume level of the signal.
In the Recorder mode, the signal on audio input 2 of the central control unit is added to the floor signal.
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figure 12.1: Recorder
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DCN-WCCU
DCN-SW
3<
1
2
2
1
C
C
IIC
Optical network
Interpretation devices
C Contribution devices
Legend
Chime
I
C
+
+
+
12.6.3 Equalized PA
In the Equalized PA mode, audio output 2 of the central control unit transmits a signal that you can connect to an external public address system (refer to figure 12.2). The central control unit sets:
The volume level of the signal
The levels of the bass of the signal
The level of the treble signal
In the Equalized PA mode, the signal on audio input 2 of the central control unit is added to the floor signal.
C
3<
C
1
2
12.6.4 Insertion
In the Insertion mode, audio output 2 and audio input 2 of the central control unit are used to add signals from external audio devices (refer to figure 12.3). For example, you can connect an external audio mixer between audio output 2 and audio input 2 of the central control unit.
IIC
2
DCN-SW
+
1
Legend
C Contribution devices
DCN-WCCU
C
figure 12.2: Equalized PA
+
Interpretation devices
I
Optical network
+
Chime
figure 12.3: Insertion
In the Insertion mode, you must install a device between audio output 2 and audio input 2 of the central control unit. When you do not install a device, the audio signals from contribution devices (floor) leave the system, but do not enter the system again.
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12.6.5 Mix-minus
In the Mix-minus mode, audio output 2 and audio input 2 of the central control unit are used to connect 2 systems (refer to figure 12.4). Use the Mix-minus mode to connect the audio of two systems. The Mix-minus connection does not cause acoustic feedback.
C
3<
C
IIC
DCN-SW
DCN-WCCU
C
figure 12.4: Mix-minus
When you connect two systems:
Go to menu item 4E Routing I/O 2 to set the systems in the Mix minus mode.
Connect audio input 2 of the first system to audio output 2 of the second system.
Connect audio output 2 of the first system to audio input 2 of the second system.
+
Legend
C Contribution devices
Interpretation devices
I
+
Optical network
+
Chime
1
2
2
1

12.7 Attention chimes

The central control unit can play an attention chime when the chairman:
Pushes the priority button on the chairman device.
Starts a voting session.
You can enable or disable attention chimes with the 4F Att. Tones menu item (refer also to 10.6.8). There are 3 different attention chimes available.

12.8 Erase requests-to-speak and speakers

The central control unit can erase the requests-to-speak and speakers when the chairman pushes the priority button on the chairman device. You can enable or disable this function with the 4G Mic. Priority menu item (refer to 10.6.8).
If you set the menu item to Permanently off, the
system does not activate the microphones of the delegates again when the chairman releases the priority button. The requests-to-speak and speakers are erased.
If you set the menu item to Temporarily off, the
system activates the microphones of the delegates again when the chairman releases the priority button. The requests-to-speak and speakers are not erased.

12.9 Floor distribution

The central control unit can send the floor signal to all empty channels in the system. You can enable or disable this function with the 4H Floor Distr. menu item (refer to 10.6.8).
If you set the menu item to Off, the central control
unit does not send the floor signal to all empty signals in the system.
If you set the menu item to On, the central control
unit sends the floor signal to all empty channels in the system.
Note
When the distance between the two systems is great, you can use a telephone coupler to connect the two systems.
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12.10 Intercom

Note
You can make an intercom device with the DCN-DDI Dual Delegate Unit (refer to chapter
19) .
12.10.1 Introduction
To enable the intercom you must first identify the locations of the operator and the chairman.
12.10.2 Location of the operator
To identify the location of the operator: 1 Select the 4Ia Assign menu item of the configuration
menu of the central control unit.
2 Set the value of the parameter in the menu item to
Yes. The display of the central control unit shows:
12.10.3 Location of the chairman
To identify the location of the chairman: 1 Go to the 4Ib Assign menu item of the configuration
menu of the central control unit.
2 Set the value of the parameter in the menu item to
Yes. The display of the central control unit shows:
3 Lift the receiver of the intercom handset of the
chairman to identify the location of the chairman. When the central control unit identifies the location, the display of the central control unit shows:
3 Lift the receiver of the intercom handset of the
operator to identify the location of the operator. When the central control unit identifies the location, the display of the central control unit shows:
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13 System operation

13.1 Start the system

Do as follows: 1 Push the on/off switch of the central control unit.
The display comes on. All devices in the DCN and the optical network are activated.
2 Install the battery packs in the wireless discussion
units.
3 Push the microphone buttons of the wireless
discussion units to activate the wireless discussion units.
If the LED around the microphone button of a wireless discussion unit comes on as green for 2 seconds:
The wireless discussion unit is activated.
If the LED around the microphone button of a wireless discussion unit flashes as red and yellow for 5 seconds:
The wireless discussion unit cannot find the wireless network.
The wireless discussion unit is deactivated.

13.2 Stop the system

Do as follows: 1 Select the 4A Wireless Mode menu item of the
configuration menu of the central control unit.
2 Set the value of the parameter in the menu item to
Off. All wireless discussion units are deactivated.
3 Push the on/off switch of the central control unit.
The display goes off. All devices in the DCN and the optical network are deactivated.
Note
If necessary, charge the battery packs.
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Section 3 - Contribution Devices

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14 DCN-WDU Wireless
Discussion Units

14.1 Introduction

With the wireless discussion units, the delegates and chairmen can make contributions to a discussion. The chairmen can also use their wireless discussion units to monitor and control a discussion.
14.2 Controls, connectors and
indicators
14.2.1 Top
The top of the wireless discussion units (refer to figure
14.1) contains:
1 Microphone socket - Connects a DCN-MICL or
DCN-MICS Pluggable Microphone to the wireless discussion unit (refer to chapter 15).
2 Loudspeaker - Gives the audio signal from the
floor to the delegate or the chairman. When the microphone is activated, the signal of the loudspeaker is muted.
3 Volume buttons - Change the volume level of the
signal that is sent to the headphones.
4 Microphone buttons - Activate or deactivate the
microphone. Each microphone button has a LED that shows the condition of the microphone. The mode of the wireless discussion unit (refer to section
14.8.4) gives the type and number of microphone buttons that you must install in the wireless discussion unit.
5 Voting buttons - Operate the wireless discussion
unit. Each voting button has a yellow LED.
14.2.2 Left and right sides
The left and right sides of the wireless discussion units (refer to figure 14.2) contain: 6 Headphones socket - Connect headphones to the
wireless discussion unit (refer to section 14.7.1).
14.2.3 Bottom side
The bottom side of the wireless discussion units (refer to figure 14.3 and figure 14.4) contains: 7 Battery pack container - Contains the
DCN-WLION Battery Pack (refer to chapter 16).
8 Configuration switches - Configure the wireless
discussion unit (refer to section 14.3) and set the mode of the wireless discussion unit (refer to section
14. 4) .
9 De-init switch - Erases the subscription from the
wireless discussion unit (refer to section 12.2).
10 Power supply socket - Connects a DCN-WPS
Power Supply Adapter to the wireless discussion unit.
14.2.4 Rear side
The rear side of the wireless discussion units (refer to figure 14.5) contains: 11 Status LEDs - Give information about the
condition of the wireless discussion unit (refer to section 14.8).
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DCN-WD
DCN-WDV
1 2 3
4
1 23
3
1 2 3
4
DCN-WDD
figure 14.1: Top views
5
4
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10
11
6
6
figure 14.2: Side views
7
3 2 1
8 9
figure 14.3: Bottom view (1)
figure 14.4: Bottom view (2)
figure 14.5: Rear view
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14.3 Internal settings

14.3.1 Introduction
With the configuration switches on the bottom of the wireless discussion unit (refer to figure 14.3, no. 8), you can configure the wireless discussion unit.
Note
The internal settings apply to the wireless discussion unit. When the wireless discussion unit is in the dual delegate mode (refer to section 14.4.5), the internal settings are the same for the two delegates.
table 14.1: Internal settings
I II Internal setting
2 1 Microphone sensitivity
(refer to section 14.3.2). Default: 0 dB.
2 2 Volume restore function
(refer to section 14.3.3). Default: disabled.
2 3 Headphones level reduction
(refer to section 14.3.4) Default: disabled.
Note
The central control unit does not keep the internal settings of the wireless discussion units. After you set the mode (refer to section 14.4), the wireless discussion unit keeps the internal settings.
14.3.2 Microphone sensitivity
When the configuration switches are in the correct position (refer to table 14.1), you can adjust the microphone sensitivity of the wireless discussion unit between -2 and 2 dB.
To increase the microphone sensitivity with 0.5 dB, push the > volume button.
To decrease the microphone sensitivity with -0.5 dB, push the < volume button.
Note
When the wireless discussion unit has two sets of volume buttons, configure the microphone sensitivity with the right set of volume buttons. The microphone sensitivity cannot be configured with the left set of volume buttons.
The LED around the microphone button shows the sensitivity (refer to table 14.2).
table 14.2: Microphone sensitivity
Microphone button LED Sensitivity
Red -2 dB Off -1.5 dB Red/Yellow -1 dB Off -0.5 dB Yel l o w 0 d B Green/Yellow 1 dB Off 1.5 dB Green 2 dB
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14.3.3 Volume restore function
When the configuration switches are in the correct position (refer to table 14.1), you can enable or disable the volume restore function of the headphones connection of the wireless discussion unit.
To enable the volume restore function of the headphones, push the > volume button. (The LED around the microphone buttons come on as green.) When the wireless discussion unit is enabled, it automatically sets the last known volume.
To disable the volume restore function of the headphones, push the < volume button. (The LED around the left microphone button comes on as red.) When the wireless discussion unit is enabled, it automatically sets the volume to -18 dB.
Note
When the wireless discussion unit has two sets of volume buttons, configure the volume restore function with the right set of volume buttons. The volume restore function cannot be configured with the left set of volume buttons.
For example, you can enable this function in discussions in which the delegates and chairmen always use the same wireless discussion unit.
14.3.4 Headphones level reduction
When the configuration switches are in the correct position (refer to table 14.1), you can enable or disable the headphones level reduction of the wireless discussion unit.
To enable the headphones level reduction, push the > volume button. (The LED around the left microphone button comes on as green.) When the microphone is enabled, the headphones level reduction is 18 dB.
Note
When the wireless discussion unit is in the dual delegate mode (refer to section 14.4.5) and the headphones level reduction is enabled:
The signal that is sent to the left headphones socket is decreased when the left microphone button is pushed. The signal that is sent to the right headphones socket is not decreased.
The signal that is sent to the right headphones socket is decreased when the right microphone button is pushed. The signal that is sent to the left headphones socket is not decreased.
To disable the headphones level reduction, push the < volume button. (The LED around the left microphone button comes on as red.) When the microphone is enabled, there is no headphones level reduction.
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Note
When the wireless discussion unit has two sets of volume buttons, configure the headphones level reduction with the right set of volume buttons. The headphones level reduction function cannot be configured with the left set of volume buttons.
For example, you can enable this function to avoid acoustic feedback between the microphone and the headphones of the wireless discussion unit.
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14.4 Modes

14.4.1 Ove rvie w
With the configuration switches on the bottom of the wireless discussion unit (refer to figure 14.3, no. 8), you can configure the mode of the wireless discussion unit. Each type of wireless discussion unit can operate in a number of modes (refer to table 14.3).
table 14.3: Modes
I II Mode
1 1 Single delegate
(refer to section 14.4.3)
1 3 Chairman
(refer to section 14.4.4)
3 1 Dual delegate
(refer to section 14.4.5)
3 3 Single delegate with auxiliary control
(refer to section 14.4.6)
14.4.2 Procedure
1 Remove the battery pack from the wireless
discussion unit.
Note
When you do not remove the battery pack, you can cause an incorrect operation of the wireless discussion unit.
2 Change the mode of the wireless discussion unit
(refer to table 14.3).
3 Re-install the battery pack in the wireless discussion
unit (refer to section 14.5.3).
14.4.3 Single delegate
When the wireless discussion unit is in the single delegate mode, it is a delegate device for 1 delegate. You can put all types of wireless discussion units in the single delegate mode. When you put the wireless discussion unit in the single delegate mode, you must also install the default microphone button (refer to figure 14.6 and section 14.5.2).
figure 14.6: Default microphone button
Note
All wireless discussion units are delivered with the default microphone button.
14.4.4 Chairman
When the wireless discussion unit is in the chairman mode, it is a chairman device for 1 chairman. You can put all types of wireless discussion units in the chairman mode. When you put the wireless discussion unit in the chairman mode, you must also install the DCN-DISBCM Buttons (refer to figure 14.7 and section
14.5.2).
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figure 14.7: DCN-DISBCM Buttons
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The only difference between a delegate wireless discussion unit and a chairman wireless discussion unit is the priority button on the left of the microphone button. With the priority button, the chairman can deactivate the microphones of all delegate devices. At the same time, the priority button activates the microphone of the chairman. The system has the possibility to:
Play an attention chime when the chairman pushes the priority button (refer to section 12.7).
Erase the requests-to-speak and the speakers when the chairman pushes the priority button (refer to section 12.8).
Note
The DCN-DISBCM Buttons come with a tool that you can use to remove the old buttons from the wireless discussion unit (refer to figure 14 .9 ).
14.4.5 Dual delegate
When the wireless discussion unit is in the dual delegate mode, it is a delegate device for 2 delegates. The system sees the wireless discussion unit as two separate devices, but it gives only one address to the wireless discussion unit. You can only put the DCN-WDD in the dual delegate mode.
When you put the wireless discussion unit in the dual delegate mode, you must also install the DCN-DISBDD Buttons (refer to figure 14.8 and section 14.5.2).
figure 14.8: DCN-DISBDD Buttons
Note
The DCN-DISBDD Buttons come with a tool that you can use to remove the old buttons from the wireless discussion unit (refer to figure 14 .9 ).
14.4.6 Single delegate with auxiliary control
When the wireless discussion unit is in the single delegate with auxiliary control mode, it is a delegate device for 1 delegate. The delegate can use the left microphone button as an auxiliary button. For example, to activate an indicator.
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Note
When the delegate pushes the auxiliary button, the auxiliary button makes an event. Use the Open Interface to program the actions that must be started by the event. Refer to the applicable Software User Manual for instructions that tell you how to program the Open Interface.
You can only put these types of wireless discussion units in the single delegate with auxiliary control mode:
•DCN-WDD
•DCN-WDV
When you put the wireless discussion unit in the single delegate with auxiliary control mode, you must also install two microphone buttons (refer to section 14.5.2). For example, you can use the DCN-DISBCM Buttons (refer to figure 14.7).
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14.5 Installation

14.5.1 General
Caution
Do not open the wireless discussion unit. Any hardware change makes the product certificates invalid. Only qualified personnel can open the wireless discussion unit.
table 14.4: Physical characteristics
Dimensions (h x w x d):
61 x 19 0 x 16 0 mm
Weight:
DCN-WD: 0.485 g
DCN-WDD: 0.500 kg
DCN-WDV: 0.505 kg
14.5.2 Microphone buttons
Note
Before you install the microphone buttons, make sure that the wireless discussion unit operates correctly. Defective wireless discussion units are always replaced with a wireless discussion unit that contains the default microphone button (refer to figure 14.6).
The mode of the wireless discussion unit (refer to section 14.4) gives the type and number of microphone buttons that you must install in the wireless discussion unit.
Refer to figure 14.9 for instructions that tell you how to remove microphone buttons from a wireless discussion unit.
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figure 14.9: Remove microphone buttons
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02
01
Refer to figure 14.10 for instructions that tell you how to install microphone buttons in a wireless discussion unit.
figure 14.10: Install microphone buttons
14.5.3 Battery
Refer to figure 14.11 for instructions that tell you how to install a DCN-WLION Battery Pack in the wireless discussion unit.
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figure 14.11: Install a battery pack
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14.5. 4 Rims
Note
Before you install the rim, make sure that the wireless discussion units operates correctly. Defective wireless discussion units are always replaced with a wireless discussion unit without a rim.
The wireless discussion units are delivered without rims. With the rims, you can change the look of the wireless discussion unit.
Refer to figure 14.12 for instructions that tell you how to attach a rim to a wireless discussion unit.
Caution
Do not remove the rim from a wireless discussion unit. Only qualified personnel can remove rims from wireless discussion units.

14.6 Subscription

14.6.1 Introduction
Each wireless discussion unit in the system must have a subscription. The central control unit cannot send data to a wireless discussion unit that does not have a subscription.
Note
Refer to section 12.2 when the central control unit must give subscriptions to all wireless network devices.
14.6.2 Procedure
The procedure below is applicable for wireless discussion devices without a subscription. When the wireless discussion unit has a subscription, first erase the subscription (refer to section 14.6.3).
Do as follows: 1 Set the wireless mode of the system to Subscription. 2 Push the microphone button of the wireless
discussion unit. All LEDs of the wireless discussion unit come on for 2 seconds.
figure 14.12: Attach a rim
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2 3 1
If the LED around the microphone button of the wireless discussion unit comes on as green for 2seconds:
The wireless discussion unit has a subscription.
The wireless discussion unit is activated.
If the LED around the microphone button of the wireless discussion unit flashes as red and yellow for 5seconds:
The wireless discussion unit cannot find a wireless network.
The wireless discussion unit is deactivated.
If the LED around the microphone button of the wireless discussion unit flashes as red and green for 5seconds:
The wireless discussion unit cannot find a wireless network that is in the Subscription mode.
The wireless discussion unit is deactivated.
14.6.3 Erase the subscription
Do as follows:
Push-and-hold the de-init button of the wireless discussion unit (refer to figure 14.3, no. 9), and
Push the microphone button of the wireless discussion unit. The LED around the microphone button comes on as yellow for 2 seconds.

14.7 External connections

14.7.1 Headphones
You can connect headphones to the headphones socket of the wireless discussion unit, the headphones must have a 3.5 mm plug (refer to figure 14.13).
figure 14.13: 3.5 mm headphones plug, connection
table 14.5: 3.5 mm headphones plug, connection
Number Signal
1Left 2 Common 3Right
Note
You can connect mono headphones to the wireless discussion unit.
Note
Do not push the de-init button with a sharp object.
table 14.6: Headphones sockets, details
Number of connections:
2x 3.5 mm socket
Location:
Right and left sides
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14.7.2 External power supply
When you remove the battery pack from the wireless discussion unit, you can connect the wireless discussion unit to a DCN-WPS Power Supply Adapter (refer to figure 14.14).
1
figure 14.14: Power supply socket, connection
table 14.7: Power supply socket, details
Number of connections:
1
Location:
In battery pack container

14.8 Operation

14.8.1 Activation
Push the microphone button to activate the wireless discussion unit. The green LED around the microphone button comes on as green for 2 seconds.
14.8.2 Deactivation
Push-and-hold the volume buttons for 2 seconds.
14.8.3 Quick reference card
Note
Refer to the Quick Reference Card of the wireless discussion unit for instructions that tell you how to operate the wireless discussion unit.
14.8.4 Microphone
The colors of the LEDs of the microphone buttons show the condition of the microphone that is connected to the wireless discussion unit (refer to table 15.5).
table 14.8: Condition
Color Condition
Red (on) Microphone active Red (flash) Last minute of speech time Green (on) Request-to-speak Green (flash) First request
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14.8.5 Attendance LED
table 14.9: Attendance LED
Attendance LED Condition
Yellow (flashing) The system requests
attendance registration.
Yel l o w ( o n) The attendance registration
is confirmed.
14.8. 6 St atus L EDs
The status LEDs (refer to figure 14.5, no. 11) show the condition of the wireless discussion unit.
If the yellow LED is on, the wireless discussion unit is out-of-range.
If the red LED flashes, the battery pack of the wireless discussion unit is empty within 1 hour.
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1
2
3
15 DCN-MICL, DCN-MICS
Pluggable Microphones

15.1 Introduction

The DCN-MICL and DCN-MICS Pluggable Microphones (refer to table 15.1 and table 15.2) are used with the contribution and interpretation devices (refer to table 15.3).
table 15.1: Types and lengths
Type Length (mm)
DCN-MICS 310 DCN-MICL 480
table 15.2: Electrical and acoustic properties
Nominal level:
85 dB SPL
Maximum level:
110 dB SPL at < 3% THD
Transducer type:
Electret
Directional pattern:
Cardioid
Equivalent input noise level:
24 dB(A)
Power consumption:
0.25 W

15.2 Controls, connectors and indicators

The pluggable microphone (refer to figure 15.1) contains: 1 Indicator ring - Shows the condition of the
microphone (refer to section 15.4).
2 Union nut - Attaches the pluggable microphone to
the device.
3 Microphone plug - Connects the microphone to
devices (refer to section 15.3).
table 15.3: Compatible devices
Type Description
DCN-WD Wireless Discussion Unit DCN-WDD Wireless Discussion Unit DCN-WDV Wireless Discussion Unit DCN-IDESK Interpreter Desk DCN-FMIC Microphone control panel
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figure 15.1: Overview
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15.3 External connections

Connect the pluggable microphone to compatible devices with the microphone plug (refer to figure 15.2).
6
1
2
3
figure 15.2: Microphone plug, connection
table 15.4: Microphone plug, connection
Pin Signal
1 Indicator ring, red (cathode) 2 Indicator ring common (anode) 3 Microphone signal + 4 Microphone GND 5Shielding 6 Indicator ring, green (cathode)
5
4

15.4 Operation

The color of the indicator ring shows the condition of the microphone (refer to table 15.5).
table 15.5: Condition
Color Condition
Red (on) Microphone active Red (flash) Last minute of speech time Green (on) Request-to-speak Green (flash) First request
Note
When the microphone is connected to a DCN-IDESK, it can only show that the microphone is activated.
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16 DCN-WLIION Battery
Pack

16.1 Introduction

The DCN-WLIION Battery pack is used with the wireless devices (refer to table 16.4).
table 16.1: Battery capacity
Output voltage:
7. 2 V ( D C )
Capacity:
4600 mAh
Life time:
500 charge-discharge cycles
Charge time:
3 hours
Caution
Use the DCN-WCH05 Battery Charger to charge DCN-WLION Battery Packs.
table 16.2: Compatible devices
Type Description
DCN-WD Wireless Discussion Unit DCN-WDD Wireless Discussion Unit DCN-WDV Wireless Discussion Unit

16.2 Safety

DCN-WLIION-D Rechargeable Lithium-ion Battery Pack
CAUTION Important Safety Instructions for Li-ion batteries. Do not short-circuit the battery. Do not pierce or crush the battery. Do not disassemble or modify the battery. Do not heat, incinerate or expose the battery to direct continuous sunshine. Do not immerse the battery in any liquid it may be vent or rupture. Respect charging, discharging, transport and storage instructions. Charge the battery between 0 ºC and 45 ºC. Discharge the battery between -20 ºC and 60 ºC.
Li-ion
45
C
U
LISTED
L
US ITE ACCESORY
19JW
Rated : 7.2V u 4800 mAh Charging Current : 12V/2.5A
NL-4827HG-10
S/N: SMYYWW9999
figure 16.1: Safety instructions
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16.3 Controls, connectors and indicators

The battery pack (refer to section figure 16.2) contains: 1 Capacity LEDs - Show the capacity of the battery
pack (refer to section 16.5).
2 Clip - Locks the battery pack in, for example, a
wireless discussion unit.
1
2
figure 16.2: Overview

16.4 Installation

Install the charged battery pack in a compatible device (refer to table 16.2).
table 16.3: Physical characteristics
Dimensions (h x w x d):
136 x 22 x 61.5 mm
Weight:
215 g

16.5 Operation

The higher the capacity, the higher the number of capacity LEDs that come on (refer to table 16.4).
Note
The battery capacity in table 16.4 is plus or minus 20%.
table 16.4: Capacity LEDs
No. LEDs on Battery capacity (hours)
518 - 20 4 13 - 18 38 - 13 2 3 - 8 1< 3
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17 DCN-WCH05 Battery
Charger

17.1 Introduction

The DCN-WCH05 Battery Charger charges the DCN-WLIION Battery Packs. The battery charger can charge a maximum of 5 battery packs at the same time.

17.2 Controls, connectors and indicators

17.2.1 Front view
The front of the battery charger (refer to figure 17.1) contains: 1 Ventilation grilles - Make sure that the
temperature of the battery charger does not become too high.
2 Battery pack containers - Hold the
DCN-WLIION Battery Packs.
3 Charge level LEDs - Show the charge level of the
battery pack (refer to section 17.5).
4 Power on/off LED - Comes on when the power
cable is connected to the mains power supply.
17.2.2 Rear view
The rear of the battery charger (refer to figure 17.1) contains: 5 Power inlet - Connects the battery charger to the
mains power supply with a power cable (refer to section 17.4.1).
6 Loop-through socket - Connects the battery
charger to another battery charger with a power cable (refer to section 17.4.2).
1 2 3 5 6
figure 17.1: Overview
4
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17.3 I n s t all at ion

17.3.1 General
Warning
Do not open the battery charger. Electrical discharges from the battery charger can kill you.
Caution
Do not obstruct the ventilation grilles. A block­age of the ventilation grilles can cause a risk of fire.
table 17.1: Physical characteristics
Dimensions (h x w x d):
340 x 195 x 82 mm
Weight:
1.4 kg
17.3.2 Wall
You can use the bracket to attach the battery charger to a wall. Refer to figure 17.2.
TORX 10
01
figure 17.2: Installation, wall
02
TORX 10
03
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When you attach more than one battery charger to the wall, you must make sure that:
The vertical distance between two brackets is at least 340 mm (refer to d1 in figure 17.2).
The horizontal distance between two brackets is at least 195 mm (refer to d2 in figure 17.2).
1
d
2
d
17.3.3 Battery
figure 17.4: Installation, battery

17.4 External connections

17.4.1 Power inlet
Connect a locally approved power cable to the battery charger (refer to figure 17.5).
figure 17.3: Installation, multiple battery chargers
figure 17.5: Power inlet
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17.4.2 Loop-through socket
With the loop-through socket, you can connect battery chargers in series.
If the power supply is 100 - 127 V(AC), 50 - 60 Hz, you can connect a maximum of 5 battery chargers in series.
If the power supply is 220 - 240 V(AC), 50 - 60 Hz, you can connect a maximum of 10 battery chargers in series.
figure 17.6: Loop-through socket

17.5 O p e r a t io n

The higher the capacity, the higher the number of charge level LEDs that come on (refer to table 16.4).
Note
The accuracy of the battery capacity in table
16.4 is plus or minus 20%.
table 17.2: Charge level LEDs
No. LEDs on Battery capacity (hours)
518 - 20 4 13 - 18 38 - 13 2 3 - 8 1< 3
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18 DCN-WPS Power Supply
Adapter

18.1 Introduction

The DCN-WPS Power Supply Adapter is used with the wireless devices (refer to table 18.2).
table 18.1: Electrical properties
Input
100 - 240 V(AC) +
Output
9 V(DC), 550 mA
table 18.2: Compatible devices
Type Description
DCN-WD Wireless Discussion Unit DCN-WDD Wireless Discussion Unit DCN-WDV Wireless Discussion Unit

18.2 Installation

You can change the power plug of the power supply adapter (refer to figure 18.1).
10%, 50 - 60 Hz

18.3 External connections

Connect the power supply adapter to compatible devices (refer to table 18.2) with the supplied cable.
figure 18.1: Installation
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19 DCN-DDI Dual Delegate
Interface

19.1 Introduction

You can use two DCN-DDI Dual Delegate Interfaces to connect:
An intercom handset for the operator.
An ambient microphone.
19.2 Controls, connectors and
indicators
The dual delegate interface (refer to figure 19.1) contains: 1 DCN cable - Connects the dual delegate interface
to the DCN (refer to section 19.6.1).
2 Mode selector - Sets the mode in which the dual
delegate interface operates (refer to section 19.4).
3 Intercom socket - Connects an LBB3555/00
Intercom Handset to the dual delegate interface (refer to section 19.6.2).
4 Voting/Control inputs - Not supported in a
DCN Wireless digital congress network.
5 Lid - Gives access to the controls inside (refer to
section 19.3).
6 Audio inputs - Connect external audio sources to
the dual delegate interface (refer to section 19.6.3).
7 Audio outputs - Not supported in a DCN Wireless
digital congress network.
8 DCN socket - Makes a loop-through in the DCN
with the dual delegate interface (refer section 19.6.1).
87 1
6 5
figure 19.1: Dual delegate interface
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2
3
4
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19.3 Internal settings

Remove the lid of the dual delegate interface to get access to the controls inside (refer to figure 19.2).
9 10
1
dB
18
12
6
0
figure 19.2: Internal settings
9 De-init switch - Erases the address of the dual
delegate interface (refer to section 12.2). The red LED adjacent to the de-init switch comes on when the dual delegate interface does not have an address.
10 Input adjustment potentiometer - Adjusts the
sensitivity of the audio input (+
11 Input type switch - Sets the type of audio input
(refer to table 19.1).
2
+/-3dB
P12
/
+/-3dB
dB
P12
18
12
/
6
0
11 12
13
3dB).
12 Input adjustment switch - Sets the sensitivity of
the audio input (refer to table 19.2).
table 19.2: Input adjustment switch (* = default)
Position Description
18 18 dB 12 12 dB 6* 6 dB 0 0 dB
13 Signal level switch - Sets the signal level of the
audio input (refer to table 19.3).
table 19.3: Signal level switch (* = default)
Position Description
Left Line level signal Right* Microphone signal

19.4 Configuration

19.4.1 Introduction
The number and types of (flush-mounted) devices that you can connect to the dual delegate interface depends on the selected mode.
19.4.2 Overview
You can set the mode with the mode selector (refer to table 19.4).
table 19.1: Input type switch (* = default)
Position Description
Upper Balanced signal with phantom power Center* Balanced signal without phantom power Lower Unbalanced signal*
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table 19.4: Modes
No. Mode
0 Not supported 1 Not supported 2 Not supported 3 Not supported 4 Intercom 5 Not supported 6 Not supported 7 Ambient microphone
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19.4.3 Intercom
When the dual delegate interface is in the intercom mode, it acts as an intercom. Refer to figure 19.3 for a typical example.
Note
The intercom LED of the DCN-FV Voting Panel comes on when the dual delegate interface receives an intercom call.
19.4.4 Ambient microphone
When the dual delegate interface is in the ambient microphone mode, the signal of the connected audio input is sent to the floor when all other microphones in the system are deactivated. Refer to figure 19.4 for a typical example.
LBB3555/00
DCN-FV
figure 19.3: Intercom mode (4)
DCN-FHH
figure 19.4: Ambient microphone mode (7)
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