Internal Settings - Bosch DCN Installation And User Instructions Manual

DCN Wireless | Installation and User Instructions | Central Devices
10.2.2 Rear view
The rear of the central control unit (refer to figure 10.1)
contains:
5 RS232 ports - Connects a PC, remote controllers or
video cameras to the central control unit (refer to
10.5.8).
6 Power inlet - Connects the central control unit to
the mains power supply with a power cable (refer to
10.5.1).
7 Ground screw - Connects the central control unit
to ground.
8 Optical network sockets - Connects the central
control unit to the optical network (refer to 10.5.3).
9 DCN sockets - Connect the central control unit to
the DCN (refer to 10.5.2).
10 Fault contact - Connects the central control unit to
devices to sense the condition of the central control
unit (refer to 10.5.7).
11 Audio inputs - Connect the central control unit to
external analog audio sources (refer to 10.5.5).
12 Audio outputs - Connect the central control unit
to external analog audio devices (refer to 10.5.6).
13 Voltage selector - Selects the voltage on which the
central control unit must operate (refer to 10.5.1).
14 Fuse holder - Prevents damage to the internal
power supply unit of the central control unit (refer to
10.5.1).
Bosch Security Systems | 2007-11 | 9922 141 70691 en
10.3

Internal settings

10.3.1 Overview
Warning
Before you open the central control unit, discon-
nect 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
10.2) contain:
15 Software LEDs - Show the condition of the
software of the central control unit. When the
software runs correctly, the yellow and green LEDs
flash.
16 S600 switches - Reserved (refer to 10.3.2).
17 X605 jumper block - Enables or disables the
watchdog (refer to 10.3.5).
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 10.3.3).
21 X600 jumper block - Connects and disconnects
the internal back-up battery of the central control
unit (refer to 10.3.4).
22 X104 jumper block - Connects and disconnects
the mechanical ground and the electrical ground
(refer to 10.3.6).
23 Fuse - Prevents damage to the electronic
components in the central control unit.
en | 33