Norms For Rack Mounting - Televes CDC Manual De Instrucciones

User Manual
8.- NORMS FOR RACK MOUNTING (max. 35 TDT - 7 subracks 5u. in height - 8,7")
8.1.- Installation of the rack with ventila-
tion facilities.
In order to facilitate the renewal and
circulation of the air inside the rack, thus
reducing the temperature of the units and in
consequence improving their characteris-
tics, it is advisable to place 2 ventilation
units of 25W, particularly when the rack with
the TDT is located in a warm place, with a
temperature higher than 40°C.
Front
Subracks
fig. 36
These ventilators will be placed on a tray,
that is screwed onto the top part of the
Rack, fig. 36 and 37, and in this way the
ventilators will be able to extract the air from
the TDT and will be able to expel it via the
gap (approx. 3-5 cm) at the top part of the
Rack, so that the air can once again enter
through the lower part, fig. 38.
fig. 37
To mount the units on a rack with ventila-
tion, it is obligatory to mount blank plates
ref. 5073 between the modules so that they
are correctly ventilated, fig. 39.
fig. 38
72
Headend Control - CDC
TDT TDT TDT TDT
5073
fig. 39