Important Safeguards ..................................................................................................................................................3

Disclaimers ......................................................................................................................................................................4

About this manual .........................................................................................................................................................5

Table of Contents ..........................................................................................................................................................7

Section 1 - System Design and Planning............................................................................................................. 13

1. DCN design .................................................................................................................................................................................. 14

1.1

Introduction ............................................................................................................................................................................ 14

1.2

Calculation tool ..................................................................................................................................................................... 14

1.3

Concepts ............................................................................................................................................................................... 14

1.4

Limits ....................................................................................................................................................................................... 14

1.5

Control capacity ................................................................................................................................................................... 15

1.6

Power capacity ..................................................................................................................................................................... 15

1.7

Cable lengths ........................................................................................................................................................................ 17

1.8

Examples ................................................................................................................................................................................ 19

1.9

Interpretation devices .......................................................................................................................................................... 22

2. Optical network design .............................................................................................................................................................. 23

2.1

Introduction ............................................................................................................................................................................ 23

2.2

Calculation tool ..................................................................................................................................................................... 23

2.3

Limits ....................................................................................................................................................................................... 23

2.4

Control capacity ................................................................................................................................................................... 23

2.5

Power capacity ..................................................................................................................................................................... 23

2.6

Cabling ................................................................................................................................................................................... 24

2.7

Example layouts .................................................................................................................................................................... 26

3. Wireless language distribution ................................................................................................................................................. 29

4. CobraNet ....................................................................................................................................................................................... 30

5. User set-up .................................................................................................................................................................................... 31

5.1

Public areas ........................................................................................................................................................................... 31

5.2

Headphones/headsets ........................................................................................................................................................ 31

5.3

Speaking distance ............................................................................................................................................................... 31

5.4

Interpreter booths ................................................................................................................................................................. 31

6. Device set-up ................................................................................................................................................................................ 32

6.1

General ................................................................................................................................................................................... 32

6.2

Cables ..................................................................................................................................................................................... 32

6.3

Temperature .......................................................................................................................................................................... 32

6.4

Ventilation .............................................................................................................................................................................. 32

6.5

Cleaning ................................................................................................................................................................................. 32

6.6

Storage ................................................................................................................................................................................... 32

6.7

Acoustic feedback ............................................................................................................................................................... 33

7. Technical data .............................................................................................................................................................................. 34

7.1

System electrical and electro-acoustic characteristics ............................................................................................... 34

7.2

Environmental conditions ................................................................................................................................................... 35

7.3

Safety ...................................................................................................................................................................................... 35

7.4

Electro-magnetic compatibility .......................................................................................................................................... 36

7.5

Miscellaneous ....................................................................................................................................................................... 36

Section 2 - Central Devices ...................................................................................................................................... 39

8. DCN-CCU Central Control Unit ............................................................................................................................................... 40

Bosch Security Systems | 2007-02 | 9922 141 70525

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