Rack-Mount Standards - Televes MUX DVBS2 - QAM CI Twin User Manual

MUX DVBS2_QAM/COFDM CI Twin
8. Norms for rack mounting (Max. 49 MUX CI T-0X - 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, par-
ticularly when the rack with the MUX DVBS2_QAM/
COFDM CI Twin T-0X is located in warm places, with
temperatures higher than 45°C.
Frontal
Subrack
fig. 1
These ventilators will be installed on a tray that is
fixed inside the cabinet (fig. 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 fig. 3.
fig. 2
28
fig. 3