Bosch LBB1946 User Manual

Communication Systems | LBB 1946/00 Plena 6-zone Call Station

LBB 1946/00 Plena 6-zone Call Station

Stylish 6-zone call station, intended for LBB 1925/00

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system pre-amplifier Unidirectional condenser microphone on flexible

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stem Six zone selection keys, all-call key and momentary

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PTT-key for calls Selectable gain, speech filter and limiter for improved

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intelligibility Selectable priority levels and different pre- and post-

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call chimes LED indications for zone selection, system

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occupation and call station status

The Plena 6-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 is intended for making calls to selected zones (1 to 6 and all-call) in a PA system built around the LBB 1925/00 system pre-amplifier. In addition to tabletop use, the special design enables the unit to be neatly flush-mounted in desk tops.

Functions

This call station features selectable gain, a selectable speech filter and a limiter for improved intelligibility, even if the speaker moves in front of the microphone. Because the call station provides a balanced line level output, it can be positioned up to 100 m away from the amplifier, using CAT-5 extension cables. Dipswitches on the bottom of the call station can be used to select different pre- and post-call chimes, as well as the priority level. Selected zones are indicated with LEDs on the call station, and an additional bi-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).

Parts Included

Quantity Component 1 LBB 1946/00 Plena Call Station 1 5m cable terminated with a lockable 8-pin DIN connector 1 Loopthrough 8-pin DIN socket to add an additional call station

LBB 1941/00 or LBB 1946/00

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2 | LBB 1946/00 Plena 6-zone Call Station

Technical Specifications

Electrical

Power Supply Voltage Range 18 – 24 V

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) Equivalent Input Noise Level 25 dB SPLA Frequency Response 100 Hz – 16 kHz Speech Filter -3 dB @ 315Hz, high-pass,

Output Impedance 200 ohm Selections Chimes 18 different combinations Priorities 2 different priorities

Environmental

(24 V by LBB 1925/00)

6 dB / oct

Operating Temperature -10°C to +55°C Storage Temperature -40°C to +70°C Relative Humidity <95% EMC Emission acc. to EN 55103-1 EMC Immunity acc. to EN 55103-2 Dimensions Base 40 x 100 x 235 mm

(1.57 x 3.97 x 9.25 inch) Stem Length with Microphone 390 mm (15.35 inch) Cable Length 5 m (196.85 inch) Weight approx. 1 kg

Ordering Information

Model | Description LBB 1946/00 Plena 6-zone Call Station

Americas: Bosch Security Systems 130 Perinton Parkway Fairport, New York, 14450, USA Phone: +1 585 223 4060 Fax: +1 800 289 0096 security.sales@us.bosch.com www.boschsecurity.us

Europe, Middle East, Africa: Bosch Security Systems B.V. P.O. Box 80002 5600 JB Eindhoven, The Netherlands Phone: +31 (0) 40 27 83955 Fax: +31 (0) 40 27 86668 emea.securitysystems@bosch.com www.boschsecurity.com

Asia-Pacific: Bosch Security Systems Pte Ltd 38C Jalan Pemimpin Singapore 577180 Phone: +65 6319 3450 Fax: +65 6319 3499 apr.securitysystems@bosch.com www.boschsecurity.com

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