Bosch 3922 988 43318 User Manual

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Bosch Security Systems | 04-2003 | 3922 988 43318 en
Digital Congress Network | Installation  and Operating Manual | Chapter 4 - Central Control Equipment 
en | 4-14
LBB 4106/00, LBB 4106/00D Extension power supply unit
4.10   LBB 4106/00, LBB 4106/00D                               
Extension power supply unit
The Extension power supply unit is remotely controlled by the CCU and enables systems to be 
extended.  Used in combination with a central control unit, the unit is used to supply power for up to 
an additional 180* PCF points.
*The figure stated represents the number of units rated with a Power Consumption Factor (PCF) of 
1. For further information regarding the Power Consumption Factor refer to 
: “System 
design fundamentals”.
The unit connects to the main trunk-line cabling using the loop-through cabling method and is 
switched on automatically when the CCU is switched on.  A built-in trunk-line splitter enables the unit 
to be installed anywhere within the system cabling.  All its outputs are protected against short circuit 
of the power supply lines.
Mounting
The unit can only be rack-mounted when two Extension power supply units LBB 4106/00 are used. 
The units are attached to each other using a supplied metal plate used to join the units together at 
the front and rear. Once joined the unit can be mounted using the mounting brackets supplied with 
each unit
.
Controls and Indicators 
(see
1. Power On indicator (green LED).
2. 1 x Trunk-line outlet connector for loop-through connection** (without regeneration) of the 
trunk-line plus indicator (red LED) to indicate trunk-line overload. The outlet is protected against 
short circuit of the d.c. supply lines.
3. 2 x Tap-off outlet trunk-line cable connectors** (with regeneration)***. Each outlet includes an      
indicator (red LED) to indicate trunk-line overload. Each outlet is protected against short-circuit 
of the d.c. supply lines.
4. Euro-mains socket with in-built fuse (a.c. mains voltage selectable inside unit). Matching mains 
cable (1.7 m (5.5 ft.) (D-version 2.5 m (8.2 ft.) included.
5. 2 m (6.5 ft.) long cable terminated with a moulded 6-pole circular connector for connection to 
the DCN network cabling.
6. 3 indicators to indicate trunk-line overload (red LEDs).
Mains connection
• For mains voltage selection, fuse rating and mains cable and plug and socket connections 
refer to the Central Control Unit LBB 3500/xx. (
).  A mains tally, showing 
the connection details is visible on one side of the unit once the top cover is removed. 
The fuse ratings are the same as used for CCUs LBB 3500/15 and LBB 3500/35
• The unit must be powered via an earthed mains outlet.
**   For connection of contribution, distribution, and interpretation units, incl. ext. power supplies.
*** For more information on regeneration see 
.
FIG 4-10 LBB 4106/00 Front and rear view Extension Power Supply unit 
1
Front view
2
4
3
6
5
Rear view