USER’S MANUAL__________________________________________________________________
64 __________________________________________________________________ M211322EN-D
3.2 RVP901 IFDR Installation
3.2.1 RVP901 IFDR Safety Precautions
3.2.2 IFDR Introduction
0916-023
Figure 18 RVP901 IFDR
The IFDR is housed in an electrically-sealed, solid metal enclosure to
achieve good immunity to external electrical noise. The internal circuitry
has been designed to minimize the number of digital components. It is
carefully grounded and shielded to make the cleanest possible samples of
the input IF signal.
The unit is cooled by direct conduction of heat through the metal chassis.
Redundant fans are attached to supply airflow across the heat sink. The
fans power is supplied from the AC to DC power supply or directly from
the DC source. The RVP901 can be ordered without fans. In this case, the
user needs to provide greater than 20 cubic feet per minute of airflow
directly across the RVP901 heat sink. See Appendix B, RVP900
WARNING
The IFDR mains power is to be permanently "hard wired" in a NEMA
electrical enclosure that is accessible only to a trained technician. The
ground (earth) connection should be attached directly to the IFDR case
mounting screw, and then brought to the power supply ground
connection.
WARNING
Disconnect the mains power before opening the IFDR for service. The
IFDR is best serviced by disconnecting the mains power, removing it
from its mount, and placing it on a bench.
WARNING
The IFDR should never be opened for field level services. Thermal
conductive material does not bind properly when unit is reassembled.
Opening the RVP901 voids all warranties.
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