Gromax Technologies Private Limited
Gromax Technologies Private Limited
Shakarpur Khas, New Delhi, Delhi
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BOSCH Praesideo Voice Evacuation System

Prominent & Leading Distributor / Channel Partner from New Delhi, we offer bosch prs-nco3 praesideo network controller, praesideo digital public address and emergency sound system, bosch prs-xpxxx and lbb 4428 power amplifiers, bosch lbb 4401/00 network controller, bosch lbb 4430/00 call station basic and bosch lbb 4438/00 call station remote.

Bosch PRS-NCO3 Praesideo Network Controller

Bosch PRS-NCO3 Praesideo Network Controller
  • Bosch PRS-NCO3 Praesideo Network Controller
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Approx. Price: Rs 4.43 Lakh / PieceGet Latest Price

Product Details:

Air pressure600 to 1100 hPa
Signal range-12 dBV to +18 dBV (XLR),-24 dBV to +6 dBV (cinch)
Line inputs2 x
Input range-7 dB to 8 dB ref nominal input level
Mic / line inputs2 x
in front of brackets40 mm (1.6 in)
Storage temperature-40 to +70 oC (-40 oF to +158 oF)
CMRR55 dB at 100 Hz
Line outputs4 x
Distortion at 1 kHz0.05%
Frequency response20 Hz to 20 kHz (-3 dB)
S/N89 dBA at maximum level
Power consumption21 W with no load 160 W with maximum load
Phantom supply12 V +-1 V @ 15 mA
behind brackets360 mm (14.2 in)
Operating temperature-5 to +55 oC (+23 oF to +131 oF)
Control inputs8 x
Dimensions (H x W x D)92 x 440 x 400 mm (3.6 x 17.3 x 15.7 in)
Control outputs5 x
in rack, with brackets88 x 483 x 400 mm (3.5 x 19 x 15.7 in)
BrandBOSCH
ColorCharcoal with silver
Output Impedance100 ohm
Humidity15% to 90%
ConnectorsXLR and stereo cinch (for each line)
Voltage48 Vdc -10% to +20%
MountingStandalone; 19" rack
Weight7 kg (15.4 lb)
Connector3-pin XLR
Crosstalk-85 dB
Input Impedance1360 ohm
Nominal Input Level-57 dBV
OperationClosing contact (with supervision)

The network control unit is the heart of the Praesideo system. The unit routes up to 28 simultaneous audio channels, delivers power to the system, reports faults, and controls the system. Audio inputs can be announcements from call stations, background music, or local audio. The network control unit can be configured for the most complex public address systems. The configuration can be done comfortably and efficiently via a PC. The PC is only needed for configuration. The controller can operate independently of the PC. However, the controller can use a PC to display information on the system status using the software, supplied with the unit. The unit can be freestanding on a tabletop or mounted in a 19" rack. The PRS‐NCO3 network controller needs PRS‐SW software version 4.0 or higher.
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  • Item Code: PRS-NCO3
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Praesideo Digital Public Address and Emergency Sound System

Praesideo Digital Public Address and Emergency Sound System
  • Praesideo Digital Public Address and Emergency Sound System
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Product Details:

Operating temperature-5 degC to +55 degC (+23 degF to +131 degF)
Rated output power (per channel)250 W (1 min. at 55 degC) 125 W (30 min. at 55 degC,cont. at 30 degC) 60 W (cont. at 55 degC)
Power consumptionPmax -3 dB* / idle** / standby
Connector6-pole header for removable screw connector (mono,balanced)
Dimensions (H x W x D)92 x 440 x 400 mm (3.6 x 17.3 x 15.7 in)
Input impedance1360 ohm
Rated load capacitance125 nF (100 V); 250 nF (70 V)
Relative humidity15% to 90%
S/N62 dBA with 25 dB headroom
in front of brackets40 mm (1.6 in)
Frequency response-3 dB @ 100 Hz and 16 kHz
Phantom supply12 V +-1 V @ 15 mA
Storage temperature-40 degC to +70 degC (-40 degF to +158 degF)
Weight LBB 4421/1013 kg (28.7 lb)
Nominal input level-57 dBV
Rated load resistance80 ohm (100 V); 40 ohm (70 V)
CMRR40 dB at 1 kHz
Air pressure600 to 1100 h Pa
Input range-7 dBV to +8 dBV ref nominal input value
BrandBOSCH
Mike Set TypeWired
Mixer TypePowered Mixer
WirelessNo
Amplifier Power500 watt
Voltage100 to 240 VAC +-10%,50/60 Hz

There are four types of power amplifier units in the Praesideo product range. These differ in the number of amplifier channels per frame: one, two, four, or eight. The overall power rating is 500 watts for all of the amplifiers. The power amplifiers can be set to 100 V, 70 V and 50 V output tappings. They have short-to-ground and short-circuit detection functions, and can generate
their own pilot tone for supervision purposes.

Features:
  • 1, 2, 4, or 8 audio outputs (selection from 100 / 70 / 50 V outputs)
  • Audio processing and delay for each amplifier channel
  • Amplifier supervision and spare amplifier switching
  • Loudspeaker line and loudspeaker supervision (LBB 4428/00 only line supervision)
  • Eight control inputs and 1, 2, 4 or 8 control outputs
Controls and indicators
  • 2 x 16-character LCD for status display
  • Rotary/push control button
  • Mains switch

 

Interconnections

  • Mains input
  • Battery backup input
  • Two system network connections
  • Two mic/line inputs (four for LBB 4428/00)
  • 100 V, 70 V or 50 V outputs (for each amplifier channel)
  • 50 V output
  • Eight programmable control inputs
  • Control output (for each amplifier channel)
  • Headphone output
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  • Item Code: PRSNCO3
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Bosch PRS-xPxxx and LBB 4428 Power Amplifiers

Bosch PRS-xPxxx and LBB 4428 Power Amplifiers
  • Bosch PRS-xPxxx and LBB 4428 Power Amplifiers
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Approx. Price: Rs 4.67 Lakh / PieceGet Latest Price

Product Details:

Channel2, 4
BrandBOSCH
Power500 watt
ColorBlack gray

  • 1, 2, 4, or 8 audio outputs (selection from 100 / 70 / 50 V outputs)
  • Audio processing and delay for each amplifier channel
  • Amplifier supervision and spare amplifier switching
  • Loudspeaker line and loudspeaker supervision (LBB 4428/00 only line supervision)
  • Eight control inputs and 1, 2, 4 or 8 control outputs
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  • Item Code: PRS
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BOSCH LBB 4401/00 Network Controller

BOSCH LBB 4401/00 Network Controller
  • BOSCH LBB 4401/00 Network Controller
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Product Details:

Distortion at 1 kHz0.05%
S/N89 dBA at maximum level
Nominal Input Level-57 dBV
CMRR55 dB at 100 Hz
Input Impedance1360 ohm
Output Impedance100 ohm
Battery power supply Voltage48 VDC -10% to +20%
Operating temperature-5 degC to +55 degC
Air pressure600 to 1100 hPa
Crosstalk-85 dB
Phantom supply12 V +-1 V @ 15 mA
Storage temperature-20 degC to +70 degC
Mic / line inputs2 x
Line outputs4 x
Power consumption14 W with no load 150 W with maximum load
Humidity15% to 90%
Line inputs2 x
Dimensions (H x W x D)88 x 483 x 400 mm (rack mounted) 92 x 440 x 400 mm (with feet)
Signal range+18 dBV to -12 dBV (XLR) +6 dBV to -24 dBV (cinch)
Connector3-pin XLR
Frequency response-3 dB @ 20 Hz / 20 kHz (+-1 dB) 0 dB @ 100 Hz / 1 kHz / 10 kHz (+-1 dB)
Input range-7 dB to 18 dB ref nominal input level
ConnectorsXLR and stereo cinch (for each line)
Voltage115/230 VAC +-10%, 50/60 Hz
MountingStandalone; 19" rack
Weight7 kg
ColorCharcoal grey with silver

Features:
  • Public address and emergency control unit
  • Fully digital with 4 audio inputs and 4 audio outputs
  • 28 audio channels
  • 8 supervised control inputs and 5 control outputs
  • Ethernet interface for configuration, diagnostic, and logging

 

Descriptions:

The network control unit is the heart of the Praesideo system. The unit routes up to 28 simultaneous audio channels, delivers power to the system, reports faults, and controls the system. Audio inputs can be announcements from call stations, background music, or local audio. The network control unit can be configured for the most complex public address systems. The configuration can be done comfortably and efficiently via a PC. The PC is only needed for configuration. The controller can operate independently of the PC. However, the controller can use a PC to display information on the system status using the software, supplied with the unit. The unit can be freestanding on a tabletop or mounted in a 19" rack.

 

Functions
Connectivity
The network controller has four analog audio inputs. Of these, two are selectable between microphone and line. The other two inputs are fixed as line inputs. The microphone/line inputs can be used as call inputs, if they are programmed conditionally to any of the eight control inputs, which are freely programmable for system actions, with freely programmable priorities. The controller has four analog audio line outputs each with a selectable 20 kHz monitoring signal. Three control outputs are programmable for faults or calls, and two others are used to connect visual and audible fault indicators.

 

Operation and performance
The network controller is completely configurable from a PC using the supplied software, which can also provide the current status of the running system, as well as comfortable and efficient configuration. The controller can also run without a connected PC, once it has been configured. The front panel has a 2 x 16-character LCD display and a rotary control to navigate through the menu and select the menu items. Address and version enquiry can be done using the display and control knob. The network controller can control up to 60 nodes. Nodes include equipment such as power amplifiers, audio expander units, call stations, call
station kits, etc. To meet the requirements for emergency sound
systems, automatic messaging is included in the network controller. The controller has a connector for installing a commercially available compact flash memory card, with a capacity matching the storage requirements for audio messages. Four messages can be played simultaneously. Message storage and of the messages themselves are monitored. Audio messages
(as a set of wav files) can be downloaded from a computer via the Ethernet link. The controller also stores seven attention tones, three test tones and 45 alarm tones, all accessible by any call stations or control inputs for announcement or alarm broadcast.
An internal real time clock lets the network controller automatically do things, such as playing scheduled announcements or changing the volume of background music during evening hours. It has extensive audio processing possibilities for the audio inputs and the audio outputs. Parametric equalization, limiter and gain can be easily adjusted using the configuration software. The digital audio processing has three
parametric and two shelving equalizer sections. There is a headset jack for monitoring the audio channels.

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  • Item Code: LBB-4401-00
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BOSCH LBB 4430/00 Call Station Basic

BOSCH LBB 4430/00 Call Station Basic
  • BOSCH LBB 4430/00 Call Station Basic
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Product Details:

Weight0.95 kg (2.1 lb)
Power consumption4.4 W (DC) excluding keypads
S/N60 dB at 85 dB SPL
Operating temperature-5 degC to +45 degC (+23 degF to +113 degF)
Frequency response340 Hz to 14 kHz (-3 dB)
Sound pressure level85 dB (SPL) at 0.5 m and 1 kHz
External power supply18 to 56 VDC
Dimensions (H x W x D)90 x 160 x 200 mm
MountingTabletop
Storage temperature-20 degC to +70 degC (-4 degF to +158 degF)
Loudspeaker S/N80 dB at max. output
Length of mic stem380 mm
Air pressure600 to 1100 hPa
Nominal acoustic input level75 to 90 dB SPL
Headset Connector3.5 mm jack
Recommended typeHosiden HBH 0058
ColorCharcoal
Humidity15% to 90%

The call station basic can make manual or pre-recorded announcements to any pre-assigned zones.The call station basic has a microphone on a flexible stem, a push-to-talk button, a speaker, and a headset socket. The LBB 4430/00 can be extended with up to 16 keypads (LBB 4432/00 or LBB 4434/00), each with
eight programmable keys. Extension with a numeric keypad (PRS‐CSNKP) is also possible.

Features:
  • Redundant network connection
  • Power ‘ON’ indication
  • Status/fault indications
  • Indication that the priority level of destinations is higher than that of the pending announcement
  • Supervision of microphone capsule

 

Functions
The call station has a cardioid, supervised microphone on a gooseneck stem with good speech intelligibility. 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, the call station activates its speaker. When a headset is connected, it replaces the microphone and speaker. The call station has its own DSP, and converts between analog and digital audio. The audio
processing can include sensitivity adjustment, limiting, and parametric equalization. Up to 16 call station keypads can connect to the station via a serial communication link. The station provides the power for the keypads. Up to 224 priorities can be assigned to the call station. All configuration can be done via the Praesideo network controller. The 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

  • Three status LEDs
  • Configurable PTT-key
  • Volume control for loudspeaker/headset

 

Interconnections

  • Two system network connections
  • Serial data and power supply interface for call station keypads
  • 3.5 mm jack for headset

 

 

 

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  • Item Code: LBB-4430-00
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BOSCH LBB 4438/00 Call Station Remote

BOSCH LBB 4438/00 Call Station Remote
  • BOSCH LBB 4438/00 Call Station Remote
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Product Details:

Recommended typeHosiden HBH 0058
Length of goose neck380 mm (15 in)
MountingStandalone
Storage temperature-20 degC to +70 degC (-4 degF to +158 degF)
Frequency response340 Hz to 14 kHz (-3 dB)
Sound pressure level85 dB (SPL) at 0.5 m and 1 kHz
Weight1 kg (2.2 lb)
Air pressure600 to 1100 hPa
External power supply18 to 56 VDC
Dimensions (H x W x D)90 x 160 x 200 mm (3.5 x 6.3 x 7.9 in)
Operating temperature-5 degC to +45 degC (+23 degF to +113 degF)
Humidity15% to 90%
Power consumption2.9 W at 48 V without keypads
Nominal acoustic input level75 to 90 dB SPL
S/N80 dB at max.
Connector3.5 mm jack
ColorCharcoal

The LBB 4438/00 is a call station with the same functionality as the basic call station, LBB 4430/00, but it uses CAT-5 cable for its connection to the Praesideo network. It connects, one-to-one, to the call station interface, LBB 4437/00, 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 length of the CAT-5
cable is not a part of the Praesideo optical network length.
This considerably increases the overall possible length of
the optical network. The LBB 4438/00 can be extended with up to 16 keypads (LBB 4432/00 or LBB 4434/00), each with eight
programmable keys.

Features:-
  • Connects to call station interface via CAT-5 cable
  • Up to 1 km from Praesideo optical network
  • Uses standard Praesideo keypads for extension
  • Built-in limiter
  • Powered via CAT-5 and/or local power supply
  • Complete supervision
  • IEC 60849 compliant

 

Functions
The call station has a cardioid, supervised microphone on a
gooseneck stem with good speech intelligibility. 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, the call station activates its speaker. When a headset is connected, it replaces the microphone and speaker. The remote call station connects via a CAT-5 cable to an LBB 4437/00 unit, which interfaces it to the Praesideo optical network. The station 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. Up to 16 call station keypads can connect to the station via a serial communication link. The call station provides the power for the keypads. Up to 224 priorities can be assigned to the call station. All configuration can be done via the Praesideo network controller. The remote call station is fully supervised and complies with IEC 60849. The call station 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

  • Three status LEDs
  • Configurable PTT-key
  • Volume control for loudspeaker/headset

 

Interconnections

  • RJ45 connector for CAT-5 connection
  • Serial data and power supply interface for call station keypads
  • Power supply connector (lockable Kycon type)
  • 3.5 mm jack for headset/headphone
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  • Item Code: LBB-4438-00
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BOSCH LBB 4437/00 Call Station Interface

BOSCH LBB 4437/00 Call Station Interface
  • BOSCH LBB 4437/00 Call Station Interface
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Product Details:

Air pressure600 to 1100 hPa
Power consumption3.7 W
Control inputs2 x
Dimensions (H x W x D)27 x 243 x 80 mm without bracket (1.1 x 9.6 x 3.1 in) 34 x 243 x 84 mm with bracket (1.3 x 9.6 x 3.3
Storage temperature-20 degC to +70 degC (-4 degF to +158 degF)
MountingBracket (2 screws)
OperationClosing contact (with supervision)
Weight0.7 kg (1.5 lb)
External power supply18 to 56 VDC
Operating temperature-5 degC to +45 degC (+23 degF to +113 degF)
ColorCharcoal
Humidity15% to 90%

The LBB4437/00 is an interface between a single remote call station LBB 4437/00 Call Station Interface call station kit LBB4439/00 and the fiber optical Praesideo network. It uses CAT-5 cable for the connection to a remote call station. The CAT-5 cable, carrying digital audio and control data, can be as long as 1 km. The length of the CAT-5 cable extends the span of a Praesideo network considerably. The call station interface is powered by the Praesideo network, but a local power supply connection is also provided. The remote call station interface is fully supervised and complies to IEC60849.

Features:
  • Connects remote call station to Praesideo network via CAT-5 cable (up to 1 km)
  • Powered from Praesideo network and/or local power supply
  • Two supervised control inputs
  • Built-in DSP for audio processing functions
  • Complete supervision
  • IEC60849 compliant

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Functions

The interface can connect a single LBB 4438/00 remote call
station or LBB 4439/00 remote call station kit to a Praesideo system with up to 1 km of CAT-5 cable. The interface is fully digital, supporting high-quality sound with a built-in DSP for audio processing of the remote call station. It supports complete supervision of itself, the call station, and the connection, as well as of two control inputs. It supports the fail safe mode of remote call stations, allowing them to put through emergency calls, even if the network controller fails. The unit is configured via the
network controller.

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Controls and indicators

  • Two LED indicators for power and network status
  • Two jumpers (below cover) to separate power supply of call station interface and remote call station

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Interconnectors

  • Two Praesideo network connectors
  • RJ45 connector for CAT-5 connection
  • Kycon type (lockable) connector for power and two control inputs

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  • Item Code: LBB-4437-00
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BOSCH LBB 4410/00 Network Splitter

BOSCH LBB 4410/00 Network Splitter
  • BOSCH LBB 4410/00 Network Splitter
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Product Details:

Mounting2 screws in bracket
Current2.5 A maximum (5 A peak 2 s)
Dimensions (H x W x D)28.9 x 200 x 82.5 mm
Humidity15% to 90%
LBB 4410/00 Network SplitterLBB 4410/00
Air pressure600 to 1100 hPa
Power consumption3.9 W (network)
Voltage24 to 56 VDC, 48 VDC nominal
Weight0.3 kg
Operating temperature-5 degC to +45 degC
ColorCharcoal
Model Name/NumberLBB 4410/00 Network Splitter

The network splitter is used in a network to provide two
branches from the main cable run. It can use an external DC
power supply, or it can use the power supply from the
network controller. The unit automatically switches to the
local power supply unit when it is connected to it, reducing
the power drain on the main network. The network splitter
can also function as a repeater, effectively extending the
length of the main network another 50 meters.

Features:-
  • Two current-limited network tap-offs
  • Supports redundant network connection on main loop
  • Can feed power from an external supply to the network
  • Power ́ON ́ indication
  • Fault indication

 

Functions
The splitter inserts Praesideo units connected to a tap-off
into the main network, however without the redundancy of
the main loop. The maximum current supplied for each of
the two tap-offs is separately selectable. External power
from the local supply is used only for the tap-offs, and is not
fed into the main system cable. The network splitter has
two LEDs for diagnostic purposes.

 

Controls and indicators

  • Power status LED
  • Fault status LED
  • Jumpers to configure tap-offs power behavior

 

Interconnections

  • Two system network connections for main network
  • Two system network connection for network tap-offs
  • External power supply input
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  • Item Code: LBB-4410-00
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