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Bosch LBB 1925/10 User Manual

Bosch LBB 1925/10
30 pages
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Plena System Pre-amplifier and Call Stations
Installation and Operating Manual
LB B 1925/10, LBB 1941,
LBB 1946
en
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Bosch LBB 1925/10 Specifications

General IconGeneral
BrandBosch
ModelLBB 1925/10
CategorySecurity System
LanguageEnglish

Summary

Important Safeguards

General Safety and Handling Procedures

Adherence to instructions, warnings, cleaning, and proper usage.

Environmental and Electrical Safety Guidelines

Protection from moisture, placement, ventilation, grounding, and electrical hazards.

Servicing, Maintenance, and Lightning Protection

Guidelines for servicing, replacement parts, safety checks, and lightning protection.

About This Manual and Safety Precautions

Manual Conventions and Symbols

Explanation of symbols (Warning, Caution, Note) used throughout the manual.

Critical Safety Warnings

Key warnings regarding electrical shock and user-serviceable parts.

About the System Pre-amplifier

1.1 Front Panel Controls and Connections

Overview of front panel controls and connection interfaces for the pre-amplifier.

1.2 Rear Panel Controls and Connections

Details of rear panel controls and connection terminals for the pre-amplifier.

Internal Settings for System Pre-amplifier

Zone and Trigger Configuration

Configuring zone selection for trigger inputs 1 and 2.

Tone, Volume, Filter, and Priority Settings

Setting tones, volume, speech filter, and priority order.

Channel Use and Override Options

Configuring single/dual channel use and zone override outputs.

Installation in Rack (System Pre-amplifier)

External Settings and Connections

4.1 DC Supply and Microphone Input

Connecting DC power supply and microphones/line-level sources.

4.3 Call Station and Emergency Input

Connecting call stations and emergency input lines.

4.5 Background Music and Booster Connection

Connecting music sources and booster amplifiers.

Operation of the System Pre-amplifier

About the Call Stations

6.1 Call Station Controls and Connections

Overview of controls and connections for the call station top panel.

Internal Settings for Call Stations

7.1 Chime Configuration

Setting chime tones for all-call and 6-zone call stations.

7.2 Microphone Sensitivity and Speech Filter

Adjusting microphone sensitivity and enabling/disabling the speech filter.

Operation of Call Stations

Technical Data: System Pre-amplifier LBB 1925

9.1.1 Electrical and Performance Specs

Electrical details (voltage, power) and performance metrics (frequency, distortion).

9.1.3 Input and Output Specifications

Detailed specifications for various input and output connections.

9.1.5 Relay, Environmental, and General Data

Relay specs, environmental conditions, EMC, dimensions, and weight.

9.2 All-call Call Station LBB 1941

Electrical, Performance, and Environmental Specs

Electrical, performance, and environmental specifications for LBB 1941.

9.2.4 General Specifications

General specifications for LBB 1941, including EMC, dimensions, and cable length.

9.3 6-zone Call Station LBB 1946

9.3.1 Electrical, Performance, and Environmental Data

Electrical, performance, and environmental specifications for LBB 1946.

9.3.3 Selections and 9.3.5 General

Available chime/priority settings and general specifications (EMC, dimensions).

Chime Tone Tables

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