48 Installation TB7100 Installation and Operation Manual
© Tait Electronics Limited December 2005
■ a distance of 5cm minimum clearance to any obstruction to the front of
the tray.
■ an open area of at least 50cm
2
(8in
2
) per tray of ventilation slots or
louvres in front of the air intakes for the fans for each tray; for example
ten 6×85mm (0.25×3.3in) slots will allow the recommended airflow.
■ a distance of 10cm minimum clearance to any obstruction to the rear of
the tray.
■ an open area of at least 50cm2 (8in
2
) per tray of ventilation slots or
louvres in the top of the cabinet, or to the rear of each tray.
■ a 2U gap at the top of the cabinet.
Note The ventilation opening must be unrestricted. If the slots or holes
are covered with a filter, mesh or grille, the open area must be
increased to allow the same airflow as an unrestricted opening.
The maximum ambient temperature entering the cabinet must not exceed
the maximum temperature specified for the base station.
If the base station is installed in a rack or cabinet with other equipment with
different ventilation requirements, we recommend that the base station be
positioned below this equipment.
Auxiliary Extractor
Fans
If multiple base stations are fitted in a cabinet, auxiliary extractor fans may
be required to ensure adequate cooling. If fitted they should be capable of
extracting 18m
3
/h (11cfm) per base station in the cabinet.
If you have any other configuration, the performance of your system will
depend on how closely you comply with the base station airflow
requirements described above.
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