Norms For Rack Mounting - Televes QPSK-PAL Manual De Instrucciones

User manual
8.- NORMS FOR RACK MOUNTING (max. 35 QPSK-PAL - 7 subracks with 5 units in height - 8.7")
8.1.- Installation of the
ventilation facilities.
In order to facilitate the renewal and
circulation of the air inside the rack, thus
reducing the temperature of the QPSK-PAL
units and in consequence improving its
characteristics, it is advisable to place 2
ventilation units of 25W, particularly when
the rack with the QPSK-PAL is located in
warm place, with a temperature higher than
40°C.
Front
Subrack
fig. 1
These ventilators will be placed on a tray,
that is screwed onto the top part of the
Rack, fig. 1 and 2, and in this way the venti-
rack with
lators will be able to extract the air from the
QPSK-PAL and will be able to expel it via
the gap (approx. 3-5 cm) at the top part of
the Rack.
fig. 2
To mount the units in the rack with
ventilation, you must mount a blank plate
ref. 5073 between the modules to allow the
correct ventilation of the equipment, fig. 4.
fig. 3
63
QPSK-PAL
5073
fig. 4