AppendixB ServicingYour Module
©NationalInstruments Corporation B-3 NI2590/2591 User Manual
FigureB-2. RF2591 Replacement Relay Module
Followthese instructions to replace th efailed modu le asshown in
Figure B-2.
1. Groundyourself with a grounding strap o r a ground connected to your
PXIchassis. Properly grounding yourself prevents damage to your PXI
modulefrom electrostaticdischarge.
2. Removethe four Phillips-head screws and nuts that fasten the NI 2591
relay moduleto the module carrier.
3. Removethe hex nuts and washers from the SMA connectors on the
front panel.
4. Removethe PXI ejector handle screw that secures the front panel.
5. Removethe module from the base card.
6. Installthe replacement module and screws in reverse order, taking care
not to damage the connector pins on the module.
1 Hex Nuts and Washers 2 Relay Module 3 Base Card
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