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BOSCH Mic LBB-1946

Ditambahkan pada : May 12th, 2015
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Kode Produk : Mic Paging BOSCH LBB-1946 (Six-zone Call Station)
Dilihat : 1,685 kali
Kategori : Produk Bosch
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Bosch microphone lbb1946 plena six zone

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BOSCH LBB-1946 Plena Six-zone Call Station

▶Stylish six-zone call station, intended for LBB 1925/10 system pre-amplifier
▶Unidirectional condenser microphone on flexiblestem
▶Six zone selection keys, all-call key, and momentary PTT-key for calls
▶Selectable gain, speech filter, and limiter for improved intelligibility
▶Selectable priority levels and different pre and post-call chimes

The Plena Six-zone Call Station is a stylish, high-quality call station with a stable metal base design, a flexible microphone stem, and a unidirectional condenser microphone. It can make calls to selected zones (one to six and all-call) in a public address system built around the LBB 1925/10 system pre-amplifier. In addition to tabletop use, the special design enables the unit to be neatly flush-mounted in desktops.

Functions
This call station features selectable gain, a selectable speech filter, and a limiter for improved intelligibility. The call station has a balanced line level output, making it possible to position it up to 100 m away from the LBB 1925/10, using extension cables. Dipswitches on the bottom of the call station configure different pre and post-call chimes, as well as the priority level. LEDs on the call station indicate selected zones, and an additional, two-color LED gives visible feedback on the active state of the microphone and the system. Green indicates microphone on or chime active (flashing LED); amber indicates that the system is occupied by a source with a higher priority or operation error (flashing LED).

Controls and indicators
• PTT-key
• PTT status LED
• Six zone selection keys
• Six zone selection LEDs
• All-call key
• All-call status LED
• Eight DIP switches

Interconnections
• Cable with DIN connector

Certifications and approvals
Safety acc. to EN 60065
Immunity acc. to EN 55103-2
Emission acc. to EN 55103-1

Technical specifications

Electrical

  • Power Supply :
  • Voltage Range 18 to 24 V (24 V supplied by LBB 1925/10)
  • Current consumption <30 mA
  • Performance :
  • Nominal sensitivity 85 dB SPL (gain preset 0 dB)
  • Nominal output level 700 mV
  • Maximum input sound level 110 dB SPL
  • Gain preset +6 / 0 / -15 dB
  • Limiter threshold 2 V
  • Compression ratio limiter 1:20
  • Distortion <0.6% (maximum input)
  • Input noise level (equiv.) 25 dB SPLA
  • Frequency response 100 Hz to 16 kHz
  • Speech filter -3dB @ 315 Hz, high-pass, 6 dB/oct
  • Output impedance 200 ohm
  • Selections :
  • Chimes 18 different combinations
  • Priorities 2 different priorities

Mechanical

  • Base dimensions (H x W x D) 40 x 100 x 235 mm (1.57 x 3.97 x 9.25 in)
  • Weight Approx. 1 kg (2.2 lb)
  • Color Charcoal with silver
  • Stem length with mic 390 mm (15.35 in)
  • Cable length 5 m (16.4 ft)

Environmental

  • Operating temperature -10 ºC to +55 ºC (14 ºF to +131 ºF)
  • Storage temperature -40 ºC to +70 ºC (-40 ºF to +158 ºF)
  • Relative humidity <95%

(Microphone BOSCH LBB-1946 (6 Zone) penggunaannya untuk disambungkan ke Mixer Pre-amplifier BOSCH LBB-1925/6 Zone)

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