• Module Immobilization accessory kit: 158533-01 for 8-slot models, 158534-01 for 4-slot
models
– Module immobilization bracket
– Installation screws
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• M4 x 0.7 button-head screw, 8 mm
• M3 x 0.5 flat-head screws (x2), 10 mm
• Torx T10/T10H driver
• Torx T20/T20H driver
What to Do
Complete the following steps to install the Module Immobilization accessory.
Figure 7. 4-slot cRIO-904x Module Immobilization Accessory Installation
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The Module Immobilization accessory kit includes two sets of screws. One set is a standard set of
screws that require a standard driver type, Torx T10 and T20. The other set is a tamper-resistant set
of screws that require a security driver type, Torx T10H and T20H. Use the tamper-resistant set to
help prevent unintended modification of the system.
cRIO-904x User Manual | © National Instruments | 23