Gromax Technologies Private Limited
Gromax Technologies Private Limited
Shakarpur Khas, Gautam Budh Nagar, Gautam Buddha Nagar, Uttar Pradesh
GST No. 09AAECG1953H1ZK
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BOSCH Praesideo Voice Evacuation System

Prominent & Leading Distributor / Channel Partner from Gautam Budh Nagar, we offer praesideo digital public address and emergency sound system and bosch lbb 4438/00 call station remote.

Praesideo Digital Public Address And Emergency Sound System

Praesideo Digital Public Address And Emergency Sound System
  • 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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Approx. Price: Rs 1.93 Lakh / PieceGet Latest Price
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Product Details:

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

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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Additional Information:

  • Item Code: PRSNCO3
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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
  • BOSCH LBB 4438/00 Call Station Remote
  • BOSCH LBB 4438/00 Call Station Remote
  • BOSCH LBB 4438/00 Call Station Remote
Get Best Quote
Approx. Price: Rs 1.2 Lakh / PieceGet Latest Price
Product Brochure

Product Details:

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

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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Additional Information:

  • Item Code: LBB-4438-00
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S.K. Chauhan (Director)
Gromax Technologies Private Limited
E-31, Sector-3, Noida
Shakarpur Khas, Gautam Budh Nagar - 201301, Gautam Buddha Nagar, Uttar Pradesh, India
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