DCN Wireless Installation and User Instructions Central Devices
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10.2.2 Rear view
The rear of the central control unit (refer to figure 10.1) contains:
5RS232 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.
8Optical network sockets - Connects the central control unit to the optical network (refer to 10.5.3).
9DCN sockets - Connect the central control unit to the DCN (refer to 10.5.2).
10Fault contact - Connects the central control unit to devices to sense the condition of the central control unit (refer to 10.5.7).
11Audio inputs - Connect the central control unit to external analog audio sources (refer to 10.5.5).
12Audio outputs - Connect the central control unit to external analog audio devices (refer to 10.5.6).
13Voltage selector - Selects the voltage on which the central control unit must operate (refer to 10.5.1).
14Fuse holder - Prevents damage to the internal power supply unit of the central control unit (refer to 10.5.1).
10.3Internal 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
The PCBs of the central control unit (refer to figure
10.2) contain:
15Software LEDs - Show the condition of the software of the central control unit. When the software runs correctly, the yellow and green LEDs flash.
16S600 switches - Reserved (refer to 10.3.2).
17X605 jumper block - Enables or disables the watchdog (refer to 10.3.5).
18Reset switch - Starts the central control unit again.
19Optical network processor indicator - Comes on when the optical network processor operates correctly.
20S500 switches - Configure the RS232 ports of the central control unit (refer to 10.3.3).
21X600 jumper block - Connects and disconnects the internal
22X104 jumper block - Connects and disconnects the mechanical ground and the electrical ground (refer to 10.3.6).
23Fuse - Prevents damage to the electronic components in the central control unit.
Bosch Security Systems
