Connecting a headset | Bosch Appliances 3.5 guide

2011-02 Installation and User Instructions 5 Call Stations

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15.2Controls, connectors and indicators

The call station basic (see figure 15.3 and figure 15.4) contains the following:

1Headset connection - A 3.5 mm (0.14 inch) jack socket to connect a headset. The loudspeaker (5) and the microphone are muted when a headset is connected (see section 15.3.3).

2Volume control - A control to adjust the volume of the internal loudspeaker and the headset.

3Press-to-talk (PTT) key - A key to start a call.

4Status LEDs - Three bicolored status LEDs provide information about the call station basic and the status of the Praesideo system. (see section 15.5).

5Loudspeaker - A loudspeaker for audio monitoring purposes. The loudspeaker and microphone are muted when a headset is connected to the headset connection (1). Chimes and messages activated by a PTT key or call activation key of the call station or one of its keypads (see section 47.3.3)

are played via the loudspeaker of the call station. Calls that are recorded for time-shifted broadcasting with a call stacker can also be monitored.

6System bus - Two system bus connectors to connect the call station basic to other Praesideo equipment (see section 15.3.2).

7Interface connector - A flat cable connector to connect the call station basic to a keypad.

15.3Connections

15.3.1 Introduction

This section gives an overview of typical system connections using the call station basic.

•Connecting the network (see section 15.3.2).

•Connecting a headset (see section 15.3.3).

15.3.2 Connecting the network

Connect the call station basic to the Praesideo system using the system bus connectors and LBB4416 network cables. Both connectors are interchangeable.

This unit is powered by the network controller, via the Praesideo system bus.

15.3.3 Connecting a headset

The next figure shows the signals that are available on the headset connector and how they relate to the parts of a 3.5 mm connector.

2K2

microphone

headphone

GND

figure 15.2: Headset connector

Note

The wire of the headset may not be longer than 3 meter.

Bosch Security Systems 2011-02

3.5 specifications

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Bosch Appliances 3.5 manual Connecting a headset, 2K2 Microphone Headphone

Models: 3.5