Bosch Appliances Home Security System 3.5 User Manual

Page of 498
Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | 7 | System Hardware Installation
en | 300
32.4 Tap-offs
The network splitter makes it possible to create tap-offs 
(see figure 32.3). Please  that tap-offs are never 
redundant, because it is not possible to create a tap-off 
ring. If the cable between the network splitter and the 
call station B breaks, call station B is not functioning 
anymore, hence the tap-off is not redundant.
32.5 Spare 
amplifiers
Besides using redundant cabling it is also possible to add 
spare amplifiers to the system (see chapter 8)
Spare amplifiers give back-up capacity if an amplifier 
has a defect.
Refer to 8.3.5.5 for information about power amplifiers.
Refer to 10.3.5.3 for information about basic amplifiers.
Caution
Do not mix spare power amplifiers with spare 
basic amplifiers. The amplifiers are not 
compatible and the configuration software does 
not support the assignment of a basic spare 
amplifier channel to a main power amplifier or a 
spare power amplifier to a main basic channel. 
figure 32.3: Redundant basic system with tap-off
PRS-NCO-B
Network Controller
PRS-NSP
Network Splitter
LBB4430
Call Station Basic
LBB4430
Call Station Basic
LBB4432
PRS-4P125
C
Power
Amplifier
all Station Keypad
A
background music
B