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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-NS P
Network Splitter
LBB4430
Call Station Basic
LBB4430
Call Station Basic
LBB4432
PRS-4P125
C
Power
Amplifier
all Station Keypad
A
background music
B