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201401/IvxIM_v2.2
JBL Intellivox Installation Manual
necessary to upload the correct settings for each unit to
obtain the desired acoustic coverage. Once this has been
done, there is no longer an operational need to have the
Intellivox connected to a PC because all settings are stored
locally within the unit’s memory and in the event of a power
failure, will be automatically reloaded on power-up. The
system designer will have determined whether a permanent
network connection needs to be provided. This will be the
case if the Intellivox is to be monitored remotely during
normal operation. Otherwise, the network wiring can be
omitted, but consideration should still be given to the unit’s
location with regard to ease of both initial and future
access for a PC connection. It may be appropriate to install
network wiring in order to provide a network access point
at a location more easily accessible than the rear of the
Intellivox unit itself. A cable with two individually foil-
screened twisted pairs should be used. Details of suitable
cables can be found on page 24.
• Fault monitoring: if network monitoring is not to be
used, a simple surveillance function may be realised by
means of the Intellivox’s ‘failure detect’ volt-free relay. This
connection requires a 2-core cable.
• Additional cooling: if the ambient temperature is
expected to exceed 40 °C an external fan should be
installed. This may be activated automatically via the
Intellivox’s temperature-controlled fan output; 2-core cable
will be required. The fan should be mounted in a position
which ensures sufficient airflow around the heatsink. For
outdoor applications a weather-proofing kit is available as
an option (see accessories in the appendix).
• Ambient Noise Sensing: the Intellivox is equipped with
a built-in microphone to provide a signal for its embedded
autogain algorithm, but an external ambient microphone
(available as an option*) should be connected if specified
by the system designer. Standard screened two-core
microphone cable should be used for this purpose.
• Frost protection: the Intellivox is equipped with a frost
protection system which activates an internally generated
pilot tone if the ambient temperature drops below a pre-
determined threshold. The frost protection thresholds can
be set using WinControl. If this function is required, an
external ambient temperature sensor (available as an
option*) should be connected with screened two-core cable
(or similar) for its correct operation.
CONNECTOR AND WIRING DETAILS
All connections to the Intellivox (except mains power) are
made via the connector block at one end of the electronics
module. The IEC mains socket is immediately adjacent to
the connector block.
*Note that the optional external ANS microphone is combined with a temperature sensor in a single unit (JBL Order Code
97661101). If both functions are required, the use of 2-pair screened cable is recommended.
USE ONLY 230V FUSES
Audio input
connector
Network
connector
fig.5.1 - Intellivox Connector block
