Bosch Security Systems | 2011-02
Praesideo 3.5
| Installation and User Instructions | 3 | Control Equipment
en
| 83
5
PRS-NCO-B Network
Controller
5.1 Introduction
The PRS-NCO-B, successor of the LBB4401/00
Network Controller, is the heart of the Praesideo
system.
The network controller controls up to 60 nodes and 28
audio channels. The network controller also provides
the power to the system and keeps the configuration for
all elements in the system. The network controller is the
interface to other systems.
See figure 5.1 for a block diagram of the network
controller.
figure 5.1: Block diagram of the network controller
A/D
D/A
Network
Processor
+
DSP
D Control
Power Supply
Audio Outputs
Audio Inputs
Control Inputs
POF
POF
Ethernet
Mains
Control Outputs
Network
Redundancy
Switching
Message
Manager
Microprocessor
I
O
RS232
Flash card
48V Back-up
Supply