Grounding - Bosch FLEXIDOME IP starlight 8000i Series Installation Manual

FLEXIDOME IP starlight 8000i
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.
2.
Use shielded audio connection cable with advised maximum cable lengths for audio line input
and output levels.
3.3.4

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.).
Notice!
Use proper surge protection on cables that are routed outdoors, or close to large inductive
loads or electrical mains supply cables.
Bosch Security Systems B.V.
Input:
Line input level (not suitable for direct microphone signal); impedance 18 kOhm typical;
1 Vrms maximum input voltage.
Output:
Line output level (not suitable for direct speaker connection); impedance 1.5 kOhm
minimum; 0.85 Vrms maximum output voltage.
Installation manual
Preparing for installation | en
2019.07 | 02 |
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