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Bosch 3.5 Manuale Utente

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Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | 7 | System Hardware Installation
en | 295
31
Cabling
31.1 Introduction
The pieces of equipment in a Praesideo system form a 
daisy chain. Therefore, all units are equipped with two 
interchangeable system bus connectors (see figure 31.1). 
Use one of these connectors to connect a unit to the 
previous unit and the other to connect it to the next unit 
in the chain.
Because the units are daisy-chained, it is possible to add 
or remove equipment anywhere in the network without 
affecting the performance of other units, provided that 
the other network connection remains available.
31.2 System 
bus
A system bus cable (see figure 31.2) has two plastic 
optical fiber (POF) ‘wires’ and two copper wires. The 
POF wires can transport up to 28 simultaneous audio 
channels and Praesideo control data, whereas the 
copper wires transport power to feed the units.
Note
Both system connectors are identical.
l
figure 31.1: Daisy chain
Network
Ethernet
Control In
Audio In 3
1
2
3
4
5
6
7
8
C NC NO C NC NO C NC NO C NC NO C NC NO
1
2
48V
Audio Out 3
Audio In 4
Audio Out 4
Audio In 1
Audio Out 1
Audio In 2
Audio Out 2
115: 100-120V~ 50-60Hz
Mains
T2.5A 250V
Control Out
RS 232
1
2
3
4
5
48V
Avis
Caution
Risk of electric shock.
Do not open.
Risk of electric shock.
Do not open.
230
O
I
230: 220-240V~ 50-60Hz
T1.25A H 250V
1
2
48V
48V
l
figure 31.2: System bus connector
table 31.1: System bus cable details
Number
Color
Material
Description
E1
Red
Copper
Power, + (48V)
E2
Brown
Copper
Power, - (GND)
O1
Black
POF
Data
O2
Black
POF
Data
O1
E1
O2
E2