Communications Systems | Praesideo Call Station Remote Module
Praesideo Call Station Remote Module
www.boschsecurity.com
u Connects to call station interface via CAT‑5 cable
u Up to 1 km from Praesideo optical network
u Connection for keypads
The PRS‑CSRM is a module with the same functionality
as the remote call station, PRS‑CSR, but without its
housing and other components. It is a building block
to make custom call stations or panels. It connects via
a CAT‑5 cable, one‑to‑one, to the call station interface,
PRS‑CSI, which is part of the Praesideo optical
network. The CAT‑5 cable, carrying digital audio and
control data, can be as long as 1 km. The CAT‑5 cable
does not contribute to the Praesideo optical network
length. This considerably increases the overall possible
length of the network.
The PRS‑CSRM can be extended with up to 16
keypads (LBB 4432/00 or PRS‑CSKPM), each with
eight configurable keys. Extension with a numeric
keypad (PRS‑CSNKP) is also possible.
Functions
The call station module has a connection for a
supervised microphone. A limiter and a speech filter
improve intelligibility and prevent clipping of the
audio. It has a volume control for the monitoring
speaker and the headset. When it plays a chime or a
pre‑recorded message, this can be monitored via a
connected loudspeaker or headphone. When a
headset is connected, it replaces the microphone and
speaker. The call station has its own DSP for audio
processing functions, including sensitivity adjustment,
limiting, and parametric equalization.
u Connection for transducers and status LEDs
u Stable metal enclosure
The module gets its power from the interface unit via
the CAT‑5 cable, but is also equipped with a local
power supply connection for extreme cases with a
very long cable and many keypads.
Call station keypads can connect to the module via a
serial communication link. The module provides the
power for the keypads.
The remote call station is fully supervised and
supports fail-safe operation. Even if the Praesideo
network controller fails, the call station is still able to
put through emergency calls.
Controls and indicators
These must be supplied by the installer.
Interconnections
• External power supply input and 2 control inputs
• Serial data and power supply interface for call station
keypads
• Microphone
• Loudspeaker
• Buzzer
• Headset
• Volume control for loudspeaker/headset
• Control input (for Press‑to‑Talk button)
• Five control outputs (for status LEDs)
A/D D/A
11
6
8 8
(< 16)
3
2
1
4
PTT
5
7
I O
12
10
9
13
14
15
16
2 | Praesideo Call Station Remote Module
Certifications and approvals
Safety acc. to IEC 60065 / EN 60065
Immunity acc. to EN 55103‑2
Emissions acc. to EN 55103-1 / FCC-47 part 15B
Emergency acc. to EN 60849, EN54‑16 and
ISO7240‑16
Maritime acc. to IEC 60945 (except salt mist test)
Region Certification
Europe CE COC
CE COC
CE
Installation/configuration notes
15 System fault status
16 Buzzer
Parts included
Quantity Component
1 PRS‑CSRM Call Station Remote Module
1 Set of connectors
Technical specifications
Electrical
Power consumption 4 W at 48 V without keypads
External power supply 18 to 56 VDC
Microphone
Sensitivity -63 to -48 dBV
SNR >60 dB at -55 dBV
Frequency response 340 Hz to 14 kHz (-3 dB)
Loudspeaker output
S/N 80 dB ±3 dB at max.
Impedance 8 to 32 ohm
Power 100 mW typ., 300 mW max.
Headset
Input sensitivity -52 to -37 dBV
Earphone impedance >16 ohm
Status outputs 5 x open collector / drain
Max. current (internal) 10 mA per pin; 30 mA total
1 Headset
2 Microphone
3 Push‑To‑Talk switch
4 Control inputs
5 Network connection
6 Network processor and DSP
7 Network redundancy switching
8 Keypad(s)
9 Loudspeaker output
10 Volume control
11 Power status
12 Fault status
13 Call status
14 Emergency status
Max. voltage 56 V per pin
Max sink current 100 mA per output pin
Control inputs 2 x
Operation Closing contact (with supervision)
Mechanical
Dimensions (H x W x D) 43 x 183 x 164 mm
(1.69 x 7.20 x 6.46 in)
Weight 0.8 kg (1.76 lb)
Mounting Stackable metal enclosure
Environmental
Operating temperature -5 ºC to +55 ºC (+23 ºF to +131 ºF)
Storage temperature -20 ºC to +70 ºC (-4 ºF to +158 ºF)
Humidity 15% to 90%
Air pressure 600 to 1100 hPa