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For unidirectional systems, the coding option includes one coding chassis that connects to the
RX chassis. For bidirectional systems, the coding option includes two coding chassis that
connect to the two RX/TX chassis. Both systems require you to move the PXIe-7902 module
from slot 12 of the RX or main chassis to slot 9 of the coding chassis.
Note
No additional cabling is necessary for the coding modules of a SISO system.
Notice
To prevent damage to the mmWave Transceiver System caused by energy
spectral density (ESD) or contamination, handle the module using the edges or the
metal bracket.
1.
Ensure the AC power source is connected to every chassis before removing and installing
the module.
The AC power cord grounds the chassis and protects it from electrical damage while you
remove and install the module.
2.
Power off the chassis.
3.
Remove the slot blocker from slot 9 of the coding chassis.
Note
Do not discard the slot blocker.
4.
Locate the PXIe-7902 in slot 12 of the RX or RX/TX chassis and remove it.
a)
Remove the Mini-SAS HD(m)-to-Mini-SAS HD(m) (8.25 in.) cables that are
attached to the PXIe-7902 front panel.
b)
(Optional) Remove the Mini-SAS HD(m)-to-Mini-SAS HD(m) (8.25 in.) cable that
connects the PXIe-7902 modules in slots 9 and 18. Removing this cable makes it
easier to remove the PXIe-7902 module in slot 12.
c)
Unscrew the two bracket-retaining screws in the front panel.
d)
Press the injector/ejector handle down.
e)
Slide the PXIe-7902 module out of slot 12 of the chassis.
5.
Fill slot 12 of the RX or RX/TX chassis using the slot blocker you removed in step 3.
6.
Locate the empty slot in slot 9 of the coding chassis and install the PXIe-7902 module
you removed in step 4.
a)
Inspect the slot pins on the chassis backplane for any bends or damage prior to
installation. Do not install a module if the backplane is damaged.
b)
Touch any metal part of the chassis to discharge static electricity.
c)
Place the PXIe-7902 module edges into the module guides at the top and bottom of
the chassis. Slide the module into the slot until it is fully inserted.
d)
Secure the PXIe-7902 module front panel to the chassis using the front-panel
mounting screws.
Note
Tightening the top and bottom mounting screws increases
mechanical stability and also electrically connects the front panel to the
chassis, which can improve the signal quality and electromagnetic
performance.
mmWave Transceiver System Getting Started Guide
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© National Instruments
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