6-Channel Interpreter Desk With Loudspeaker (Lbb 3222/0X); Introduction; Front Panel Controls - Bosch INTEGRUS Installation And Operating Manual

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1 6-Channel interpreter desk with loudspeaker (LBB 3222/0x)

1.1 Introduction

The LBB 3222/0x 6-channel interpreter desk provides listening and speaking facilities for interpreters using the CCS 800, CCS
400 or non-BOSCH discussion systems. Up to 12 desks can be connected to an Integrus transmitter using the Symmetrical
Audio Input and Interpreters Module (LBB 3422/1x). It can distribute up to 6 outgoing languages. An 'auto-floor'-feature is
incorporated for relay interpretation. This allows a less well-known floor language to be translated by one interpreter into a
language familiar to all other interpreters and relayed as the auto-floor.
The LBB 3222/0x has an integral loudspeaker and is supplied with a microphone incorporating an illuminated status ring to
warn everyone in the booth that the microphone is active. Two outgoing channels are provided, A and B, switchable by means
of a channel select key.

1.2 Front panel controls

The desk has the following front-panel controls and indicators (see Figure 1.1):
Figure 1.1: LBB 3222/0x 6-channel interpreter desk
Note: Flashing indicators warn that the language channel occupied by this desk is also being used by one or more other desks.
1. Microphone activating key - 2-position toggle switch for activating the microphone. An interlock facility can be enabled
(using the under-panel controls) that prevents the microphone being activated if the desk's outgoing language distribution
channel is occupied by another desk.
2. Microphone status indicators - Two red LEDs to indicate that the microphone is active.
3. Microphone mute key - A non-locking push-button to temporarily mute the microphone. When pressed, the status
indicators and status ring are 'off', but the outgoing language distribution channel remains occupied by the desk.
4. Microphone - Gooseneck microphone with integral status indicator ring.
5. Call-channel key - Non-locking push-button to route the microphone to the call channel for one-way communication
with the operator (with priority over the A/B channel). The microphone status indicators and status ring are 'on' when the
call-channel key is pressed. The outgoing language distribution channel remains occupied by the desk. Not applicable for
use with CCS 800 discussion systems.
6. Outgoing message key - Non-locking push-button to be used for signalling purposes. When pressed, contacts are closed.
This switch is connected to the 6-pole DIN connector for custom wiring.
7. Incoming message indicator - A yellow LED with 1 k W series resistor connected to the 6-pole DIN connector. To be
used for custom signalling purposes.
BOSCH Security Systems B.V.| February 2003
INTEGRUS | LBB 3222/04 and LBB 3422/10