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Bosch Security Systems | 2011-02
2011-02 | Installation and User Instructions | 5 | Call Stations en | 234
20.2 Controls, connectors and
indicators
The remote call station (see figure 20.3 and figure 20.4)
contains the following:
1 Headset 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 20.3.3).
2 Volume control - A control to adjust the volume
of the internal loudspeaker and the headset.
3 Press-to-talk (PTT) key - A key to start a call.
4 Status LEDs - Three status LEDs provide
information about the remote call station and the
status of the Praesideo system (see section 20.5).
5 Loudspeaker - A loudspeaker for audio
monitoring purposes. The loudspeaker and
microphone are muted when a headset is connected
to the headset connection (1). Only chimes and
messages activated by a PTT key of the call station
or one of its keypads (see section 47.3.3) are played
via the loudspeaker of the call station.
6 External power supply/Control inputs - A
connection for an (optional) external power supply
and control inputs (see section 20.3.4 and section
20.3.5).
7 RJ45 connector - A connector to connect the
remote call station to a PRS-CSI Call Station
Interface via a straight Cat-5 cable (see section
20.3.2).
8 Service connector - A connector used for
manufacturing. Not for normal use.
9 Interface connector - A flat cable connector to
connect the remote call station to a call station
keypad.
20.3 Connections
20.3.1 Introduction
This section gives an overview of typical system
connections using the remote call station.
• Connecting the network (see section 20.3.2).
• Connecting a headset (see section 20.3.3).
• Connecting an external power supply (see section
20.3.4).
• Connecting control inputs (see section 20.3.5).
20.3.2 Connecting the network
Connect the remote call station to the Praesideo system
using a PRS-CSI Call Station Interface (see chapter 22).
20.3.3 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.
Caution
Do not connect the connector 7 to any Telecom
or Ethernet network. This connection is
dedicated for PRS-CSI only.
figure 20.2: Headset connector
Note
The wire of the headset may not be longer than
3 meter.
5V
microphone
headphone
GND
2K2