User's Manual

TB8100 Installation and Operation Manual Description 13
© Tait Electronics Ltd June 2003
The single PA is mounted vertically with the heatsink facing the centre of
the subrack. This positions the cooling fins directly behind the PA fan. The
airflow separator is fitted directly beside the PA to help direct the cooling
airflow through the heatsink.
Figure 1.2 above shows the configuration for a typical dual 5 or 50W base
station. The PMU occupies its normal slot at the left end of the subrack,
with the reciters in the two right-hand slots.
The two PAs are mounted vertically in the middle of the subrack with the
heatsinks facing each other. This positions the cooling fins directly behind
the PA fan. The airflow separator between the PAs helps to direct the
cooling airflow evenly through each heatsink.
Figure 1.2 Mechanical Assembly - Dual 5 or 50W Base Station
b
PMU
f
reciter for base station 1
c
PA for base station 1
g
reciter for base station 2
d
airflow separator
h
subrack
e
PA for base station 2
b
c
d
e
f
h
g