
Praesideo PRS-CSM / PRS-CSRM / PRS-CSKPM en | 16
Bosch Security Systems B.V.
IUI PRS-CS(R)(KP)M | V1.0 | 2013.12
Installation and User Instructions
2.2 Controls, connectors and
indicators
The remote call station module contains the following
connections (see figure 2.2 and figure 2.3):
1 Back-up supply/Buzzer - Besides powering the
call station module via the system network
connector (7), it can also be powered externally
from a back-up power supply via this connector
(see section 2.2.1). On this connector also a
buzzer can be connected.
2 Microphone/PTT key - The microphone input
is used to connect a microphone and a Press-
To-Talk (PTT) switch (see section 2.2.2)
3 Loudspeaker/Control Inputs - The loudspeaker
is meant for listening to chimes, pre-recorded
messages and alarms (see section 2.2.3)
activated by a PTT key of the call station or one
of its keypads (see section 47.3.3 of the IUI
Praesideo 4.0). This connector also provides
two control inputs, e.g. to accept fault outputs
from a backup power supply.
4 Headset/Volume control potentiometer - This
connector provides the possibility to connect a
headset and a volume control potentiometer to
the call station module (see section 2.2.4).This
potentiometer also controls the volume of a
loudspeaker connected to 3.
5, 6 Control input/outputs - The control input and
five control outputs on these two connectors act
in a similar way as the PTT key and LEDs on
the LBB4430/00 Call Station Basic (see section
2.2.5).
7 PRS-CSI connection - An RJ45 connector to
connect the remote call station module to a call
station interface via a straight Cat-5 cable.
8 Factory test connector.
figure 2.2: PRS-CSRM installer front view
24V Buzz Mic PTT Lsp CI 1 CI 2
Hmic
Vol Hlsp
PTT
Pwr Fault Call
Emg
Fault
Syst
++
1234 123 456 123 456 123 456 123456 789101112
1 2 3 4
5
6
Note
All cables connected to 1 to 6 must be less than 3
meter in length.
Caution
Do not connect the connector 7 to any Telecom or
Ethernet network. This connection is dedicated for
PRS-CSI only.
figure 2.3: PRS-CSRM system front view
Service CSI
48V
8 7
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