Site Planning
64
Installation and Commissioning Manual
F
S
P
3000R
7 R
11
.1 8000
0015930
Issue
B
, ©
2012
ADVA AG Optical Netw
orking
ADVA Conf
idential
Cooling Requirements
This section provides information about the dissipation of heat produced by the
modules in a shelf and also offers guidelines for proper air circulation.
Heat Dissipation
A significant amount of the electric energy consumed by an equipment shelf is
converted into heat. Power draw and heat release from an shelf are dependent
on the type of power supplies as well as the type and the number of modules
installed. To ensure the safety, performance, and reliability of the system exces-
sive heat generated by the modules must be dissipated into the surrounding air.
Dissipation is accelerated by ventilation.
An air conditioning system may be required to cool the equipment to acceptable
operating temperatures. The capacity of the air conditioning system must be
large enough to sufficiently dissipate the heat generated by all of the equipment
in the area. If the temperature of the intake air flow is too high, an overtempera-
ture condition occurs.
To estimate the heat flow volume that your cooling system must dissipate, cal-
culate the quantity of heat produced by each shelf when consuming its power
requirement.
Airflow Considerations
As you plan your installation site, adhere to these guidelines:
•
Ensure that the installation site provides sufficient air circulation. Without
sufficient air circulation, ambient air temperature may not cool the FSP
3000R7 equipment to admissible operating temperatures. Excessive oper-
ating temperatures can cause malfunctions and emergency shutdowns of
the system.
•
Ensure that intake air to the FSP 3000R7 system and the OTDR is cooled
by the installation site air conditioning system and is as dust free as possi-
ble.
•
Ensure that the intake air enters at the front of the 7HU shelf or 9HU shelf
and exits from both sides and the rear.
•
Ensure that the intake air enters at the front of the OTDR and exits from the
rear.
•
Ensure that the inlet air enters at the right side of the 1HU shelf and exits
from the left side.
CAUTION
Elevated Operating Ambient Temperature!
If installed in a cabinet or multi-unit rack assembly, the operating
ambient temperature of the rack environment may be greater than
room temperature. Be careful to install the equipment in an
environment that is compatible with the maximum ambient
temperature (Tma) specified by the manufacturer.