Tait International Limited TBCK4B Manual Do Utilizador

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DRAFT 4 
TB9400 Installation and Operation Manual
Replacing Modules
93
© Tait Electronics Limited September 2011
8
Replacing Modules
Caution
The 100 W PA and PMU weigh between 9.3 lb 
(4.2 kg) and 15.4 lb (7 kg) each. Take care when hand-
ling these modules to avoid personal injury.
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). Both 
the PMU and PA modules have built-in protection mech-
anisms to prevent damage from overheating.