Praesideo 3.5 Installation and User Instructions 3 Control Equipment

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7LBB4404/00 CobraNet Interface

7.1Introduction

The LBB4404/00 CobraNet Interface is used to interface between a CobraNet and Praesideo. The CobraNet interface can convert up to 4 audio channels from Praesideo to CobraNet and 4 audio channels from CobraNet to Praesideo at the same time. See figure 7.1 for a block diagram of the CobraNet interface.

Note

CobraNetTM is a registered trademark of Peak Audio, a division of Cirrus Logic, Inc.

CobraNet is a combination of software, hardware and network protocol which allows distribution of many channels of real-time, high quality digital audio over an Ethernet network. CobraNet is supported for switched Ethernet variants. CobraNet uses standard Ethernet packets and network infrastructure (controllers, switches, cabling, etc.) that operate in compliance with the IEEE 802.3u specification for Fast Ethernet. Fast Ethernet distance limitations apply to CobraNet installations: 100 meters over Cat-5 copper cable, 2 kilometers over multimode fiber. Proprietary Fast Ethernet via single mode fiber solutions can reach even further.

CobraNet can sent up to 64 channels of 48 kHz, 20-bit audio over a single 100 Mbit link in each direction. These channels are grouped in bundles.

See www.cobranet.info for information on CobraNet, including network design, network installation, network redundancy and troubleshooting.

CAT5

CAT5

Control inputs

POF

POF

 

 

 

Display + Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CobraNet

Sample rate

 

D/A

 

 

 

 

 

 

 

 

 

 

 

 

 

Interface

conversion

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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I

 

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DSP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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redundancy

 

 

 

 

 

 

 

 

 

 

switching

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Control outputs

figure 7.1: Block diagram of the CobraNet interface

Bosch Security Systems 2011-02

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Bosch Appliances 3.5 manual LBB4404/00 CobraNet Interface, Display + Control CobraNet
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3.5 specifications

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