Bosch VG4-A-PSU1 Power Supply Unit for CCTV Cameras - Manual (Page 6)

6 en | Safety
Power Supply Units (AUTODOME7000, MIC7000
cameras)
2020-10 | | Installation Manual Bosch Security Systems, Inc.
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.
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.
1.4 UL certification
Disclaimer
Underwriter Laboratories Inc. (“UL”) has not tested the performance or reliability of the
security or signaling aspects of this product. UL has only tested fire, shock and/or casualty
hazards as outlined in UL's Standard(s) for Safety for Closed Circuit Television Equipment, UL
2044. UL Certification does not cover the performance or reliability of the security or signaling
aspects of this product.
UL MAKES NO REPRESENTATIONS, WARRANTIES, OR CERTIFICATIONS WHATSOEVER
REGARDING THE PERFORMANCE OR RELIABILITY OF ANY SECURITY OR SIGNALING RELATED
FUNCTIONS OF THIS PRODUCT.
Disclaimer
Underwriter Laboratories Inc. (“UL”) has not tested the performance or reliability of the
security or signaling aspects of this product. UL has only tested fire, shock and/or casualty
hazards as outlined in UL's Standard(s) for Safety for Information Technology Equipment, UL
60950-1. UL Certification does not cover the performance or reliability of the security or
signaling aspects of this product.
UL MAKES NO REPRESENTATIONS, WARRANTIES, OR CERTIFICATIONS WHATSOEVER
REGARDING THE PERFORMANCE OR RELIABILITY OF ANY SECURITY OR SIGNALING-RELATED
FUNCTIONS OF THIS PRODUCT.
1.5 Bosch notices
Copyright
This manual is the intellectual property of Bosch Security Systems and is protected by
copyright. All rights reserved.
Trademarks
All hardware and software product names used in this document are likely to be registered
trademarks and must be treated accordingly.