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35601 User's Manual
Grounding
Requirements
Floating the
Input/Output
Grounds
Racal Instruments Ó 2003
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To conform to applicable safety and EMC requirements,
ensure that the 5601 instrument panel and the PXI chassis
are "earth" grounded.
The outer shells of the front panel terminals
(Input, Output) can float from case ground.
Refer to Figure 2-1 and the instructions in
this manual to disconnect/connect the circuit
ground from/to case ground.
The 5601 ground circuit is designed so it can float from case
ground. The only limitation is that the input and output
grounds must reside at the same ground potential.
Looking at the front panel, you will notice that the BNC
connectors are housed in plastic material, and are therefore
isolated from the metal front panel. The amplifier circuit is
also floated from the backplane power supply ground through
isolated DC/DC converters. Therefore, the amplifier ground
circuit may be configured to float from case ground in
applications requiring isolation from circuit to case grounds.
Input and output grounds are tied together.
Do not connect input and output grounds to
different levels. Failure to adhere to this
limitation
may
surrounding equipment connected to its I/O
connectors.
The 5601 may be ordered from the factory already configured
with the required ground setting. However, you may change
the grounding for different applications by means of a simple
jumper connection. Use the following procedure to
enable/disable the floating ground configuration.
CAUTION
WARNING
damage
the
5601
Installation 2-3
and
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