Cabling; Introduction; System Bus - Bosch Praesideo 3.5 Installation And User Instructions Manual

Praesideo 3.5 | Installation and User Instructions | 7 | System Hardware Installation
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.
Note
Both system connectors are identical.
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.
Caution
Risk of electric shock.
Do not open.
Avis
Risk of electric shock.
Do not open.
Control In
1 2 3 4 5 6
RS 232
Network Ethernet
1 2
Control Out
C NC NO C NC NO C NC NO C NC NO C NC NO
48V 48V
1 2 3
48V
figure 31. 1 : Daisy chain
Bosch Security Systems | 2011-02
Audio In 3 Audio Out 3 Audio In 4 Audio Out 4
7 8
Audio In 1 Audio Out 1 Audio In 2 Audio Out 2
230
115: 100-120V~ 50-60Hz
230: 220-240V~ 50-60Hz
4 5
1 2
48V
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.
l
Mains
O I
T2.5A 250V
T1.25A H 250V
E1
O1
figure 31.2: System bus connector
table 31. 1 : System bus cable details
Number Color
E1 Red
E2 Brown
O1 Black
O2 Black
en | 295
E2
O2
Material Description
Copper Power, + (48V)
Copper Power, - (GND)
POF Data
POF Data
l