Infra-Red Transmitters (Lbb 4502/Xx); Description - Bosch INTEGRUS Installation And Operating Manual

INTEGRUS | Installation and Operating Manual | Infra-Red Transmitters
2 Infra-Red Transmitters
(LBB 4502/xx)

2.1 Description

The transmitter is the central element of the Integrus
system. It accepts asymmetrical audio sources from a
maximum of 32 external channels (dependent on the
transmitter type) and can be used with the Digital
Congress Network (DCN) conference system or ana-
logue discussion and interpretation systems such as the
CCS 800 (with up to 12 interpreters desks), or as a
stand-alone system distributing external audio sources.
The transmitter is suitable for either table-top or 19-
inch rack-mounted use. Four feet (for table top use)
and two mounting brackets (for rack mounting) are
supplied. The mounting brackets can also be used to
mount the transmitter to a flat surface.
Figure 2.1 Transmitter with optional mounting brackets and
table-top feet
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Figure 2.2 Transmitter, front view
Figure 2.2:
1. Mains on/off switch – After switching the mains
on, the transmitter starts up and the display (3) will
light-up.
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2. Mini IR-radiator – Four IREDs, transmitting the
same infra-red signal as the radiator output.
This can be used for monitoring purposes.
They can be disabled via the configuration menu.
3. Menu display – A 2x16 character LCD-display
gives information about the transmitter status. It is
also used as a an interactive display for configuring
the system.
4. Menu button – A turn-and-push button to operate
the configuration software in combination with the
display (3).
5. Monitoring headphone output – A 3.5 mm
(0.14 inch) jack socket to connect a headphone for
monitoring purposes. It can be disabled via the
configuration menu.
Note: The mini IR-radiator and the head-
phone output can also be permanently
disabled by removing two resistors.
Consult your regular service contact for
more information.
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Figure 2.3 Transmitter, rear view
Figure 2.3:
1. Interface module slot – An optional audio inter-
face module can be mounted in the transmitter
housing. Its connectors are accessible via an open-
ing at the back of the transmitter.
2. Emergency switch connector – A terminal block
socket for a single, 'normally open' switch. When
the switch is closed, the audio signal on the Aux-
right input is distributed on all output channels,
overriding all other audio inputs. A matching cable
connector is provided.
3. Auxiliary audio inputs – Two female XLR con-
nectors for extra audio inputs. They can be used to
connect auxiliary symmetrical audio signals such as
a music installation, the floor language or emer-
gency messages.
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