Pulsar DSO-PRA User manual

DSO-PRA
v.1.0
19" RACK CABINET FOR
PRAESENSA DSO SYSTEM
EN
Edition: 2 from 05.05.2021
Supersedes the edition: 1 from 15.03.2021

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TABLE OF CONTENTS
1. SYSTEM FEATURES............................................................................................................................3
2. TECHNICAL DESCRIPTION. ............................................................................................................4
2.1. GENERAL DESCRIPTION........................................................................................................................................................4
2.2. ELECTRICAL SCHEME. ..........................................................................................................................................................4
3. DESIGN OF VOICE ALARM SYSTEM.............................................................................................5
4. COMPONENTS OF THE DSO CABINET. ........................................................................................7
4.1. THE LZXX-PRA SAFETY STRIP.............................................................................................................................................7
4.2. 230 VAC LDXXXX VOLTAGE DISTRIBUTION TERMINAL......................................................................................................9
4.3. PSG3LA PANEL FOR OPTICAL AND ACOUSTIC INDICATION. ...............................................................................................10
4.4. RAWP600RZ FAN PANEL. .................................................................................................................................................11
5. CONFI-DSO PROGRAM FOR DESIGNERS. .................................................................................13
6. TECHNICAL PARAMETERS. ..........................................................................................................14
Table 9. Parameters of DSO system.....................................................................................................................................14
Table 10. Operation safety...................................................................................................................................................14
Table 11. Operating parameters. .........................................................................................................................................14
7. INSTALLATION..................................................................................................................................15
7.1. REQUIREMENTS..................................................................................................................................................................15
7.2. INSTALLATION PROCEDURE................................................................................................................................................15

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1. System features
dimensions of RACK cabinets: 24U(600x600),
36U(600x600), 42U(600x600, 600x800),
45U(600x600, 600x800), 50U (600x800)
CONFI-DSO PRAESENSA is a program for
designers that has been designed with BOSCH to
support the DSO configuration
PSG3LA LED panel for optical and acoustic
indication compliant with the PN-EN54-16 standard
for evaluating DSO system operation
LZxx-PRA safety strip with overcurrent fuses, surge
arresters and a dummy connector
single-phase or 3-phase power supply
230 V AC LDxxxx voltage distribution terminal
grounding terminals
protection Class: IP30
batteries included
mounting bracket for batteries
mounting shelves for each cluster
enclosure of DSOS24VPU firefighter’s microphone
–available as an option
AWO506 End of Line (EOL) Supervision Board –
available as an option
forced cooling - fan unit with a thermostat; optional
accessory for 24U, standard for 36U, 42U, 45U,
50U
warranty for DSO-PRA cabin –2 years from
production date
warranty for batteries –1 year from installation date

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2. Technical description.
2.1. General description.
19" DSO-PRA RACK cabinet is designed for installation of PRAESENSA voice alarm system devices by
Bosch.
Devices of DSO system are placed in 19" RACK cabinet together with appropriate battery banks.
Power supply from power grid can be supplied to cabinet in form of 1-phase or 3-phase connection, which
depends on total power consumed by DSOdevices.
CONFI DSO PRAESENSA program is designed for proper and fast configuration of DSO cabinet; based on
implemented design parameters, program selects a complete power supply system taking into account required
backup time.
2.2. Electrical scheme.
Figure 1 shows an exemplary wiring diagram inside a DSO cabinet for a 3-phase 230 V / 400 V AC
connection.
PRA-MPS3 –multi-functional power supply
PRA-SCL –system driver
Fig.1. Block diagram of the DSO power supply system.

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3. Design of Voice Alarm System.
The design and all components of the DSO are based on the RACK 19" cabinet (Protection Class: IP30),
containing all components of the system. Depending on the system and the number of devices, the height of the
cabinet is adjusted individually. The available dimensions are 24U(600x600) to 50U(600x800).
In order to facilitate the installation of devices, especially those of greater weight such as audio amplifiers,
mounting brackets are fitted inside. If a call station (firefighter's microphone) is to be mounted in the rack, a
dedicated pull out shelf will be added to facilitate the use of the microphone.
The equipment installed inside the cabinet can be accessed via the glass front doors, removable side
walls, and rear doors. In addition, the use of two types of locks, separate for the front and rear doors, restricts
unauthorized access. The cabinet can be mounted on a metal base with a height of 100 mm or wheels allowing it
to move freely.
Fig. 2. Sample configuration of a DSO cabinet.
Table 1. Components of RACK cabinet.
Element
no.
Description
Batteries
LZxx-PRA safety strip
PSG3LA LED panel for optical and acoustic indication.
230 V AC LDxxxx voltage distribution terminal.
Compartment for DSO equipment: power supply units, system driver, amplifiers, firefighterʹs
microphone.
RAWP600RZ fan panel with a thermostat (optional).

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Table 2. Technical parameters of RACK cabinets.
Mounting dimensions
W=19”
H=24U
W=19”
H=36U
W=19”
H=42U
W=19”
H=45U
W=19”
H=50U
External dimensions
600x600x1303
[mm]
600x600x1837
[mm]
600x600x2103
or
600x800x2103
[mm]
600x600x2236
or
600x800x2236
[mm]
600x800x2459
[mm]
Weight
66kg
76kg
- 89kg
(600x600mm)
- 104kg
(600x800mm)
- 91kg
(600x600mm)
- 106kg
(600x800mm)
152kg
Static load
1000kg
Protection class
IP30
Notes
set includes a base with a height of 100mm (optional - set of wheels)
glass front door
two types of locks, separately for front and rear doors

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4. Components of the DSO cabinet.
Equipment of each DSO cabinet includes elements necessary for proper operation of system.
These components, depending on their intended use, protect electrical system against overvoltage or short circuit,
supply power to receivers, and ensure proper signaling or cooling of installed equipment in RACK cabinet.
If device comes in several models, they are selected automatically by CONFI-DSO PRAESENSA program
supporting DSO configuration.
4.1. The LZxx-PRA safety strip.
Safety strip is fitted with circuit breakers, surge arresters, and a dummy connector. In right part, there is a
connector for connecting 230V / 400V mains supply from power grid.
Main overcurrent circuit breaker disconnects 230 V / 400 V mains from all system devices.
In addition to the main switch, it is fitted with „type 3" surge arresters compliant with the EN 61643-11 standard.
Dummy connector includes overcurrent circuit breaker which can be switched on regardless of status of
main switch.
Fig.3. The LZ1F-PRA safety strip.
Fig.4. The LZ3F-PRA safety strip.

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Table 3. Components of the safety strip.
Element
no.
Description
A 230 V maintenance socket
Overcurrent circuit breaker of 230 V maintenance socket
Surge arresters
Overcurrent circuit breaker of fan
Main overcurrent circuit breaker
Safety contact strip is connected to mains. Access is obtained by removing front cover. Connection to
power system is shown below.
Fig.5. Connection to the power system –a single-phase 230 V AC connection.
Fig.6. Connection to the power system –3-phase 400 V AC connection.

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Table 4. Technical parameters of safety strips.
Model
LZ1F-PRA
LZ3F-PRA
Connection to mains
Single-phase 230 V
3-phase 3x230 V / 400 V
Main overcurrent circuit breaker
1+N-pole
C20
Rated short-circuit breaking
capacity 6kA
3+N-pole
C20
Rated short-circuit breaking
capacity 6kA
Surge protection
L, N
type 3 (D) according to EN
61643-11 standard
L1, L2, L3, N
type 3 (D) according to EN
61643-11 standard
Overcurrent circuit breaker of fan
1 - pole, C10
Recommended cable parameters
3 x 1,5 mm2…4 mm2
5 x 1,5 mm2…4 mm2
Dimensions
Standard RACK 19”
H= 3U
4.2. 230 V AC LDxxxx voltage distribution terminal.
Voltage distribution terminal is equipped with 230 V connection sockets and it is used to supply
components of DSO. Depending on number of devices and amount of power consumption, terminal can have
1-phase or 3-phase connection. 3-phase version enables more uniform load per phase of power grid.
Terminal is placed in back of cabinet.
Fig. 7. A LD1F6G voltage distribution terminal.
Fig. 8. LD3F9G voltage distribution terminal.
Table 5. Technical parameters of distribution terminals.
Model
LD1F6G
LD3F9G
Number of outlets
6
9
Protection
C20
3xC20
Dimensions
Standard RACK 19”
H= 1U

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4.3. PSG3LA panel for optical and acoustic indication.
The optional panel for optical and acoustic indication compliant with the PN-EN54-16 standard indicates
the status of the entire DSO system. It is equipped with three LEDs, a sounder, and a reset button of acoustic
indication.
The panel can indicate three different operating states
CONTROL –Normal state, indicating the presence of mains power.
ACOUSTIC INDICATION –Fire alarm status, acoustic indication ON
FAILURE –Fire alarm status, acoustic indication ON
The indication panel is fitted with two alarm signal inputs:
- ACOUSTIC INDICATION
- FAILURE
Inputs should be connected to the control panel or other signaling device. For proper signalization, the
terminals must be normally (without failure) opened; in the case of failure, they must be closed. A voice alarm
signal or failure indication triggers the appropriate optical and acoustic indication. The button on the front panel
allows muting the acoustic signal, while the optical signal remains unchanged. Once the failure is cleared, the
optical and acoustic indication will automatically be stopped and the green indicator will light up to indicate that the
system is operating properly.
Fig.9. Indication panel –front view.
Fig.10. Indication panel –rear view.
Table 6. Components of the PSG3LA panel for optical and acoustic indication.
Element no.
Description
LED lights for optical indication.
Acoustic indication reset button.
Connector:
ACOUSTIC INDICATION; normal status –terminals are opened
Indication –terminals are closed
FAILURE; normal status –terminals are opened
Indication –terminals are closed
+ 24V / GND power supply terminals
Acoustic indicator.