National Instruments NI 5670 用户手册

This section describes how to install hardware for PXI platforms.

NI PXI modules are sensitive instruments that should be handled carefully.
Do not expose the module to temperatures or humidity beyond the rated
maximums. Keep the module free of dust by cleaning with compressed air
only. Do not clean the module with any solvents or liquids. Refer to the 

 section for more information about module cooling.

You can install PXI modules in any PXI slot marked with a peripheral slot 
compatibility glyph (a circle containing the slot number).

You also can install PXI modules in any PXI hybrid slot marked with 
a peripheral slot compatibility glyph (the letter “H” and a solid circle 
containing the slot number).

Installation of the NI 5670/5671 hardware requires three vacant PXI 
slots—two slots for the NI 5610 upconverter module and one slot for 
the NI 5421/5441 AWG module. The NI 5421/5441 AWG module must be 
installed in the slot immediately to the right of the NI 5610 upconverter 
module to allow use of the included SMA-to-SMB coaxial cables.

SMA connectors must be connected and tightened before the SMB or AWG 

connectors are mated to preserve cable life and reduce stress on the SMB connectors. 

PXI Chassis only—the NI 5610 upconverter module onboard frequency reference 

can drive the PXI backplane clock only if the upconverter module is installed in PXI Slot 2. 
When the NI 5610 is installed in PXI Slot 2, you can configure it to lock the PXI backplane 
to the NI 5610 onboard oven-controlled crystal oscillator (OCXO) or to an external 
frequency source (connected to the REF IN connector on the NI 5610 module front panel).

To install a PXI module, complete the following steps:

1.

Power off and unplug the PXI chassis.

2.

Make sure that the fans are set to HIGH if the PXI chassis has multiple 
fan speed settings.

3.

Position the PXI chassis so that inlet and outlet vents are not 
obstructed. For more information, refer to the chassis documentation.

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