Bosch FLEXIDOME IP starlight 8000i - 4.3.4 Grounding

FLEXIDOME IP starlight 8000i Preparing for installation | en 15
Bosch Security Systems B.V.
Installation manual
2024-02 | V02 | F.01U.404.121
Audio I/O
Connect audio devices to the audio input and audio output connectors.
The unit has full-duplex mono audio for two-way communication between a speaker or door
intercom system. The audio input signal is transmitted in synchronization with the video
signal.
1. Input:
Line input level (not suitable for direct microphone signal); impedance 18kOhm
typical; 1Vrms maximum input voltage.
2. Output:
Line output level (not suitable for direct speaker connection); impedance 1.5kOhm
minimum; 0.85Vrms maximum output voltage.
Use shielded audio connection cable with advised maximum cable lengths for audio line
input and output levels.
4.3.4 Grounding
The camera is double-insulated and does not need a safety earth connection, but grounding
is recommended for outdoor applications.
Grounding provides improved surge protection (up to 1kV, 2 kA to ground (8/20 µs pulse)).
The grounding wire is not included in the box. Bosch recommends the use of a grounding
wire with a ring terminal.
The ring terminal must not have a thickness greater than 2mm (0.01in.).
i
Notice!
Use proper surge protection on cables that are routed outdoors, or close to large inductive
loads or electrical mains supply cables.