Bosch 3922 988 43318 User Manual

Bosch Security Systems | 04-2003 | 3922 988 43318 en

Digital Congress Network | Installation and Operating Manual | Chapter 11 - System Set-up and Operation

en | 11-1

Introduction

Chapter 11. System Set-up & 

Operation

11.1   Introduction

When all the units in a system have been installed, the system must be initialized and made ready for 
use. The initialization procedure enables all DCN units installed to be recognized by the CCU. 
Recognition is given in the form of an address, allocated by the CCU to each active unit in the system. 
A ‘de-init’ switch located under each DCN contribution unit is used to clear the units allocated 
address when conflicts with duplicated addresses occur.

The following describes how to initialize a ‘Stand-alone’ and PC-based system.

11.1.1  Initializing a stand-alone system 

Note: Step 1 is normally not required for systems powered-up for the first time. First-time systems 
are de-initialized, therefore proceed with step 3 after switching on the CCU for the first-time. 

On the CCU locate the push-button and the small recessed switch (Start) under ‘Equal-

izer’. Using a small pointed device (e.g. paper-clip) insert the device into the recess hole  
(3) and activate the switch while holding down the equalizer ‘Start’ switch and ‘Equal-
izer’ push-button for at least 10 seconds after switching on the CCU (1).  Ensure its 
power LED is lit. (2).  DCN units with LC-display show the firmware release version of 
the unit itself and not the CCU firmware release version

STEP 2.    

All unit addresses have been cleared and the LEDs on all active units illuminate after com-

pleting step 1.  

NOTE:

 If this is not the case resume at step 1 again or remove the unit. 

STEP 3.    

To initialize an individual unit press the units microphone key while the units LEDs are lit 
(for interpreters desk press the  ‘Mute’ key, the Dual Audio Interface Unit and the Multi-
Purpose Connection have their own ‘de-init’ , but can also be initialized by pressing the 
microphone key of a connected microphone).  Once pressed the units LEDs go out. The 
unit is now recognized in the system by the CCU. Repeat this procedure for all active 
units installed in the system one by one. Initialize all units one by one (not simulta-
neously) to eliminate addressing problems.

STEP 4.    

To clear the individual address of a delegate/chairman unit in the event of an address 

conflict,  press the ‘DE-INIT’ switch of the relevant unit (see 

NOTE: 

After the initialization process, it is recommended that the function of each active 

unit installed is checked individually.

FIG 11-1

De-initializing CCU

11.1.2  Initializing a PC-based system

The clearing of addresses and the initialization procedure for systems using a PC is identical to that of 
a Stand-alone system. However by using DCN’s System Installation Software LBB 3585/00,  seat 
numbers can be linked to units that have already been initialized.

Using Software package LBB 3585, two methods are available for linking active units to seat numbers/
names:

a.

From the hall, by physically pressing delegate unit microphone buttons in sequence. Each 
microphone unit is then registered by the PC which in turn automatically links a unit to a 
specific seat number.

From the PC, where the operator simply selects a microphone unit.  This unit is then linked to 
a specific seat number. From this selected seat number the PC assigns the next microphone 
unit in sequence. This sequence is according to the initialization process.

The Dual Audio Interface unit can be linked to two seat numbers even though the CCU during 
initialization assigns it with a single address.

Bosch Security Systems B.V.
Release : x : xx

LBB 3500/xx

LED
LED

LBB 3500/35 only