10 Installation TB8100 Installation Guide
© Tait Electronics Limited February 2007
1.7 Ventilation
Always ensure there is adequate ventilation around the TB8100 base station.
Do not operate it in a sealed cabinet. You must keep the ambient
temperature within the specified range, and we strongly recommended that
you ensure that the cooling airflow is not restricted.
Important The cooling fans are mounted on the front panel and will
only operate when the panel is fitted correctly to the front
of the subrack. To ensure adequate airflow through the base
station, do not operate it for more than a few minutes with
the front panel removed (e.g. for servicing purposes).
1.7.1 Ambient Air Temperature Sensor
The ambient air temperature reading
for the TB8100 base station is
provided by the ambient air
temperature sensor board
b fitted to
the PA control board.
The sensor board is inserted through
slots in the control board and heatsink
to be positioned between the heatsink
fins.
Important If the sensor board is to provide accurate ambient tempera-
ture readings, it must have forced airflow and must not
come into contact with the metal of the heatsink fins. Do
not stack PAs with the fins together. It is possible for
the fins on one heatsink to slide between the fins on the
other heatsink. This can damage the sensor board, and pos-
sibly result in the heatsink fins becoming locked together.
1.7.2 Cabinet and Rack Ventilation
Refer to Figure 1.2 on page 12.
The cooling airflow for the TB8100 base station enters through the front
panel and exits at the rear of the subrack. For optimum thermal
performance, the heated air that has passed through a base station must not
be allowed to re-enter the air intakes on the front panel. Any space at the
front of the cabinet not occupied by equipment should be covered by a
blanking panel.
b
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