Bosch Appliances LBC 325X installation manual Intellivox DDC Installation Manual Appendix

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Intellivox DDC Installation Manual Appendix

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The AGND pin serves as a reference for the SPL and temperature measuring input circuitry. To keep this ground signal as clean as possible, the AGND wires together with the MIC and the NTC signal should be run through a shielded cable. The shield should be connected to the GND pin of this terminal block.

AGND should not be connected to any other ground pin (GND or DGND) on the chassis.

Because safety is a very important issue, the safety ground pin of the IEC mains connector should always be connected to a low impedance ground network.

If the standard solution is chosen to be connected the audio (line level) inputs the grounding situation is according to Fig 9.

Fig 8 Ground configuration of the Intellivox chassis.

Fig 9 Standard grounding configuration

Bosch Security Systems July 2003

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Contents Intellivox DDC Disclaimer Table of contentsFigure and Table lists Intellivox-2c shown without front grill IntroductionGeneral considerations Items in the boxList of shipped items Intellivox DDC Installation Manual Installation Guide Signal connections Wiring and connectionsMains power Wago massive to stranded wire clampIntellivox connector block Methods for mounting Intellivox Wago 231 cross-section Connecting a WagoPVC insert sizes GeneralLBC 3253/00 Intellivox-2c dimensions, all measures in mm Measures and dimensionsMounting procedure Grounding strategy Reference part listIntellivox DDC Installation Manual Appendix Intellivox DDC Installation Manual Appendix For longer cable runs 50m Structure of the RS-485 network Some notes on the RS-485 Network interfaceCable length Network configurationCable termination Cable typeRS-232 pin description of the RS-232 to RS- 485 adapter Master deviceRS-485 pin description of the RS-232 to RS- 485 adapter Wiring LBC 3262/00 Ambient SPL Temperature sensorWiring configuration using asymmetrical cable type DescriptionIntellivox DDC Installation Manual Appendix LBC 3251/00 Intellivox-1b dimensions, all measures in mm Intellivox dimensions of the different modelsLBC 3252/00 Intellivox-2b dimensions, all measures in mm LBC 3252/10 Intellivox-2b dimensions, all measures in mm LBC 3253/00 Intellivox-2c dimensions, all measures in mm LBC 3253/10 Intellivox-2c dimensions, all measures in mm LBC 3254/00 Intellivox-4c dimensions, all measures in mm LBC 3254/10 Intellivox-4c dimensions, all measures in mm LBC 3256/00 Intellivox-6c dimensions, all measures in mm LBC 3256/10 Intellivox-6c dimensions, all measures in mm Bosch Security Systems GmbH 9922 141 50511en