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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 | 4-5
LBB 3500/35, LBB 3500/35(D) Multi Central Control Unit
4.4.1 CCU Mains voltage and adjustment
Depending on the CCU version, the CCU on delivery is set ready for use on one of the following
voltages:
• LBB 3500/xx(European version) 230 V a.c.
• LBB 3500/xxD(UL approved version) 125 V a.c. plus mains cable
For alternative voltages (i.e. 105 V, 115 V, 220 V or 240 V a.c.) the unit provides a 10-pole connector
block for mains selection (see FIG 4-3). A mains tally (FIG 4-4) showing the connection details is
visible on one side of the unit once the top cover is removed.
Removal top cover
WARNING: Before removing the top cover, disconnect the mains and mains cable from
the unit. Read also the ‘Safety Precautions’ at the front of this manual.
1. Unscrew and remove the four side panel securing screws (two on each side of the unit) and care-
fully remove the top cover.
2. DO NOT lose the toothed shake-proof washers, these electrically bond the top cover to the
earthed chassis. For safety reasons these washers must always be fitted when the unit is in use.
WARNING Ensure that the CCU is not connected to the mains supply when rewiring for
a different mains voltage. The CCU must be earthed via the mains supply using the green/
yellow wire. The mains plug must be an earthed type.
FIG 4-4 Mains supply tally and mains socket
4.4.2 CCU Mains cable, plug and socket
The CCU is supplied with a 3-core mains cable terminated with a 2-pole mains plug with earth
contacts (or earth pin LBB 3500/xxD) for connection to the mains supply, and at the other end with
a CEE connector for connection to the mains socket on the CCU. For use in some countries it may
be necessary to replace the mains cable with one of a local standard type.
• Live/brown
• Neutral/blue
• Earth/green yellow
4.4.3 CCU Mains fuse rating
The CCU mains fuse is housed in the mains socket
located at the rear of the unit (see opposite)
Replacement fuses see Table 4-2::
WARNING: All units must be powered via an earthed mains outlet.
WARNING: Only replace with fuse of the same type (Rating and Breaking Capacity).
CONNECTOR 10P
1
2
3
4
5
6
7
8
9
10
/05
FUSE
105V
BLUE MAINS BLUE MAINS
BLUE (from transformer)
YELLOW
BROWN
BLUE MAINSN.C N.C
BLUE MAINS
BLUE MAINS
ORANGE
ORANGE
N.C N.C
BLACK
N.C
N.C
N.C
N.CBLACK
VIOLET
VIOLET
BLACKGREEN GREEN
GREEN BLACK GREEN BLACK
115V 125V 220V 230V 240V
/35 IEC
IEC
/15 UL/CSA
UL/CSA T 2.5 A
T 4 A
T 5 A
T 5 A
T 1.25 A
T 2 A
T 2.5 A
T 4 A
IEC
IEC
UL/CSA
UL/CSA
N.C. = Not Connected
Table 4-2: Mains voltage and Fuse ratings on delivery
Type No. Voltage Fuse Nominal Power consumption (Watts)
LBB 3500/05
LBB 3500/05 (D)
230 V
125 V
T-2A
T-2,5A
175 W
LBB 3500/15
LBB 3500/15(D)
230 V
125 V
T-4A
T-5A
350 W
LBB 3500/35
LBB 3500/35(D)
230 V
125 V
T-4A
T-5A
350 W
LBB 4106/00
LBB 4106/00(D)
230 V
125 V
T 4A
T 5A
350 W
LBB 3508/00
LBB 3508/00(D)
230 V
125 V
T 2A
T 2.5A
175 W
NOTE: (D) versions applicable for North American market only.
T 2A 250V
WARNING
This apparatus must be earthed
illustrated
Fuse holder
version LBB 3500/05