Bosch LBB 1946/00 Plena Six-zone Call Station

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.

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

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 : 2V
• 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%
• Interconnection : Cable with DIN connector

Certifications and approvals

• Safety : acc. to EN 60065
• Immunity : acc. to EN 55103-2
• Emission : acc. to EN 55103-1

Region

• Europe : CE

Parts included

• 1nos. LBB 1946/00 Plena Six-zone Call Station
• 1nos. 5 m cable terminated with a lockable 8-pin DIN connector
• 1nos. Loop through 8-pin DIN socket to add an additional call station LBB 1941/00 or LBB 1946/00

Ordering information

• LBB 1946/00 Plena Six-zone Call Station 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). Order number LBB1946/00