Bosch INTEGRUS Specifications download pdf (Page 24)

Bosch Security Systems B.V.

20 | Transmitters and Interface Modules

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LBB 3422/20 Symmetrical Audio

Input and Interpreter Module

Features

X Direct connection of up to 12 LBB 3222/04 Interpreter

Desks for six languages

X Routing of floor signal (for instance from a CCS 800

discussion system) to interpreter desks

X Eight symmetrical inputs

X Facility for mounting input transformers for galvanic

isolation between audio source and the transmitter

Introduction

The LBB 3422/20 Symmetrical Audio Input and Interpreters

Module is used for interfacing the transmitter with the CCS

800 discussion systems and the LBB 3222/04 6-Channel

Interpreter Desk with Loudspeaker. Different connections

and switch settings are possible to also allow the module to

be used with non-Bosch systems.

Functions

Controls and Indicators

• On-board switches can be set for directly connecting

interpreter desks (LBB 3222/04) or other audio sources

• An on-board switch can be used to match the

amplification of floor signals from CCS 800 or from other

analogue conference systems

• An on-board switch can be used to replace the

interpretation signal with the floor signal for distribution

to the listeners when an interpreter channel is not in use

Interconnection

• Symmetrical analogue audio input; 25-pole female sub-D

connector

• Audio and data bus connector; H 15 male connector

Technical Specifications

Electrical

Audio input level with AGC -16.5 dBV (150 mVeff) to

+3.5 dBV (1500 mVeff)

Audio input level without AGC -4.4 dBV (600 mVeff)

Asymmetric input impedance ≥ 10kohm

DC input impedance ≥ 200kohm

Mechanical

Mounting Front panel is removed when used with

INT-TX Transmitter

Dimensions (H x W x D)

without front panel 100x26x231mm (39x10x91in)

Weight

without front panel 132 g (0.29 lb)

Ordering Information

LBB 3422/20 Symmetrical Audio Input and

Interpreter Module

LBB3422/20

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 45 46

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Bosch INTEGRUS Specifications Page 24

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