Internal Settings - Bosch DCN Next Generation Installation & User's Instructions

DCN Next Generation | Installation and User Instructions | Central Devices
8.2.2 Rear view
The rear of the central control unit (refer to figure 8.1)
contains:
5 RS232 ports - Connect a PC, remote controllers or
video cameras to the central control unit (refer to
section 8.5.8).
6 Power inlet - Connects the central control unit to
the mains power supply with a power cable (refer to
section 8.5.1).
7 Ground screw - Connects the central control unit
to ground.
8 Optical network sockets - Connect the central
control unit to the optical network (refer to section
8.5.3).
9 DCN sockets - Connect the central control unit to
the DCN (refer to section 8.5.2).
10 Fault contact - Connects the central control unit to
devices to sense the condition of the central control
unit (refer to section 8.5.7).
11 Audio inputs - Connect the central control unit to
external analog audio sources (refer to section 8.5.5).
The functions of the audio inputs are:
• Audio input 1: Floor
• Audio input 2: Selectable recorder/delegate loud-
speaker/mix-minus/insertion (refer to section 8.8.2).
12 Audio outputs - Connect the central control unit
to external analog audio devices (refer to section
8.5.6). The functions of the audio inputs are:
• Audio output 1: PA
• Audio output 2: Selectable recorder/delegate
loudspeaker/mix-minus/insertion (refer to section
8.8.2).
13 Voltage selector - Selects the voltage on which the
central control unit must operate (refer to section
8.5.1).
14 Fuse holder - Prevents damage to the internal
power supply unit of the central control unit (refer to
section 8.5.1).
Bosch Security Systems | 2007-02 | 9922 141 70525
8.3

Internal settings

8.3.1 Overview
Caution
Before you open the central control unit,
disconnect it from the mains power supply.
Electrical discharges from the mains power
supply can kill you.
Caution
Before you open the central control unit, take
measures to prevent electro-static discharges.
The PCBs of the central control unit (refer to figure 8.2)
contain:
15 Software LEDs - Show the condition of the
software of the central control unit. When the
software runs correctly, the yellow LED flashes and
the green LED is constantly on.
16 S600 switches - Reserved (refer to section 8.3.2).
17 X605 jumper block - Enables or disables the
watchdog (refer to section 8.3.5).
18 Reset switch - Starts the central control unit again.
19 Optical network processor indicator - Comes
on when the optical network processor operates
correctly.
20 S500 switches - Configure the RS232 ports of the
central control unit (refer to section 8.3.3).
21 X600 jumper block - Connects and disconnects
the internal back-up battery of the central control
unit (refer to section 8.3.4).
22 X104 jumper block - Connects and disconnects
the mechanical ground and the electrical ground
(refer to section 8.3.6).
23 Fuse - Prevents damage to the electronic
components in the central control unit.
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