Bosch Appliances VG4-A-PSU2 Power Supply User Manual


 
AutoDome Power Supply Boxes Important Safety Instructions | en 9
Bosch Security Systems, Inc. Installation Guide F.01U.250.895 | 1.0 | 2011.08
Environmental statement - Bosch has a strong commitment
towards the environment. This unit has been designed to
respect the environment as much as possible.
Power lines: An outdoor system should not be located in the
vicinity of overhead power lines, electrical lights, or power
circuits, or where it may contact such power lines or circuits.
When installing an outdoor system, extreme care should be
taken to keep from touching power lines or circuits, as this
contact may be fatal.
U.S.A. models only - refer to the National Electrical Code Article
820 regarding installation of CATV systems.
SELV - All the input/output ports are Safety Extra Low Voltage
(SELV) circuits. SELV circuits should only be connected to
other SELV circuits.
Because the ISDN circuits are treated like telephone-network
voltage, avoid connecting the SELV circuit to the Telephone
Network Voltage (TNV) circuits.
System ground/Safety ground
System (video) ground is indicated by the symbol .
Safety (power) ground is indicated by the symbol .
The system ground is only used to comply with safety standards
or installation practices in certain countries. Bosch does not
recommend connecting system ground to safety ground unless
it is explicitly required. However, if the system ground and
safety ground are connected and grounding loops are causing
interference in the video signal, use an isolation transformer
(available separately from Bosch).
CAUTION!
Connecting System ground to Safety ground may result in
ground loops that can disrupt the CCTV system.