Bosch VDN-498V03-11 User Manual - Page 7

FlexiDome2X Safety | en 7 1.3 1.3.1 Connection in outdoor applications Safety precautions Coax grounding: If an outside cable system is connected to the unit, ensure that the system is grounded. U.S.A. models only: Section 810 of the National Electrical Code, ANSI/NFPA No.70, provides information regarding proper grounding of the mount and supporting structure, grounding of the coax to a discharge unit, size of grounding conductors, location of discharge unit, connection to ground electrodes, and requirements for the grounding electrode. 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. 24 VAC power source: This unit is intended to operate with a limited power source, this power source must comply with EN60950. The unit is intended to operate at 24 VAC. User supplied wiring, from 24 VAC supply to unit, must be in compliance with electrical codes (Class 2 power levels). Do not ground the 24 VAC supply at the terminals or at the unit's power supply terminals. Connection: The unit has connection terminals on flying leads. In wet or outdoor installations make use of the VDA-455SMB accessory or use a field wiring box with Nema 3 or IP55 protection level or better. Make the connections inside the water tight compartment. After connections are made ensure that the watertight compartment is tightly closed and cables and conduits are properly sealed to prevent ingress of water. Bosch Security Systems Installation Manual AR18-08-B010 | v1.0 | 2009.03