Praesideo 3.5 Installation and User Instructions 4 Amplifiers

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9.3Connectors

9.3.1 Introduction

This section gives an overview of typical system connections using the multi channel interface.

•Connecting to the basic amplifiers (see section 9.3.2).

•Connecting to the network (9.3.3).

•Connecting the multi channel interface by-pass (see section 9.3.4).

•Connecting the control inputs (see section 9.3.5).

•Connecting the control outputs (see section 9.3.6).

9.3.2 Connecting to the basic amplifier

The double amplifier connectors 1 to 14 are used for the basic amplifier channels. The double amplifier connectors 15 and 16 are available for two spare basic amplifier channels.

The connection to the basic amplifier is made with two modular (RJ45) connections.

The connections of the basic amplifier and the multi channel interface have a triangle (top row) and a circle (bottom row) symbol.

1Connect the triangle symbol connector of the multi channel interface to the triangle symbol connector of

the basic amplifier.

2Connect the circle symbol connector of the multi channel interface to the circle symbol connector of the basic amplifier.

Caution

Do not connect the circle symbol connector of the multi channel interface to the triangle symbol connector of the power amplifier.

Caution

Do not connect the modular (RJ45) connectors to any Telecom or Ethernet network. These connectors are dedicated for the multi channel interface and the basic amplifiers only.

table 9.1 Basic amplifier interface connections

Top row, indicated with

Bottom row, indicated

triangle

with circle

Pin

Signal

Pin

Signal

1

Relay A Out

1

Audio Out +

2

Relay B Out

2

Audio Out -

3

Ground

3

Ground

4

DC Back-up

4

24 V supply In/

 

monitor In

 

Out

5

Mains monitor In

5

Spare relay Out

 

 

 

 

6

Stand by Out

6

Mute Out

7

100 V In +

7

Overheat In

8

100 V In -

8

Ready In

Caution

Always use CAT-5 modular plugs with an empty connector crimp part (refer to figure 9.3, part A). Some (pre-)assembled CAT-5 modular plugs have a connector crimp part that is filled with plastic (refer to figure 9.3, part B). These connectors do not give a reliable connection to the modular (RJ45) connectors on the basic amplifiers and multi channel interfaces and can therefore cause unexpected fault events.

AB

figure 9.3: (pre-) assembled CAT-5 modular plugs

9.3.3Connecting the network

Use the system bus connectors and LBB4416 network cables to connect the multi channel interface to the Praesideo system. Both connectors are interchangeable. Normally the multi channel interface receives its power from the connected amplifiers. This is the recommended setting, but if it is not connected to an

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Bosch Appliances 3.5 manual Connectors, Connecting to the basic amplifier, Basic amplifier interface connections
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