User's Manual Part 2

Bosch Security Systems | 2007-02 | 9922 141 70691 en
DCN Wireless | Installation and User Instructions | System Design and Planning en | 30
8 Device set-up
8.1 General
• Make sure that the area is clean.
• Make sure that the air is sufficiently cool.
• Make sure that there is sufficient lighting.
8.2 Cables
Use different cable ducts for the extension and mains
cables. Identify each cable with a label and divide
trunks to manageable geographic locations. In public
areas where people can touch or move above the
connectors and cables, use metal protection covers.
Refer to the applicable protection specification of the
protection covers.
8.3 Temperature
When devices are in a 19-inch rack, make sure there is
rack space between the devices to let sufficient air flow.
Forced airflow may be necessary to keep the
temperature of the devices below the maximum
temperature (refer to section 9.2). This extends the
lifetime of the devices.
8.4 Ventilation
Keep a good airflow. Airflow holes are in the front, right
and left sides of all 19-inch devices (for example, the
central control unit and the audio expander).
• Put the devices on a hard and level surface.
• Put the central control unit at minimum distance of
0.10 m from walls to let sufficient air flow.
8.5 Cleaning
1 Disconnect the mains power supply from the
devices, if you want to clean the devices.
2 Use a soft cloth that is not fully moist with a weak
soap and water solution.
3 Let the device fully dry before you operate the
device again.
8.6 Storage
1 Disconnect the mains power supply from the
devices, if you do not use the devices for a long time.
2 Keep the devices in a clean and dry area with a
sufficient airflow.
Caution
Do not put objects on top of devices. Objects
can fall through the airflow holes. A blockage of
the airflow holes can cause a risk of fire.
Caution
Do not put the devices near or above a radiator,
heat grill or in direct sunlight.
Caution
Do not cause vibration of the devices.
Caution
Do not use alcohol, ammonia or petroleum
solvents or abrasive cleaners to clean the
devices.
Note
If the central control unit is stopped or
disconnected from the mains power supply for
more than 100 days, the values of all system
parameter are erased. This includes all the
values of the parameters of the interpreter desks
and the wireless access point. This does not
include the subscription list.