Norms For Rack Mounting - Televes TOX Series User Manual

8. Norms for rack mounting (max. 49 COFDM-COFDM CI - 7 subracks with 5 units in height - 8,7")
8.1. Installation of the rack with
ventilation facilities
To facilitate the renewal and circulation of the air
inside the rack, to reduce the temperature of the
units and thus improving their characteristics, it
is advisable to place 2 ventilation units of 25W,
particularly when the rack with the COFDM-COFDM
CI is located in warm places, with temperatures
higher than 45°C.
Frontal
Subrack
fi g. 1
These ventilators will be installed on a tray that is
fi xed inside the cabinet (fi g. 1 & 2). This way, the
ventilators will force the fresh air entering from
the base of the cabinet, to circulate between the
modules and be expelled through a gap on top of
the cabinet (3-5 cm approx.). See fi g. 3.
fi g. 2
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fi g. 3