Mounting the sbRIO Model with a RIO Mezzanine Card (RMC)

What to Use

  • Socket driver, 4.5 mm
  • Screwdriver, Phillips #1

What to Do

Figure 8. RMC Mounting Configuration

1378

  1. Standoffs, 16.00 mm (0.63 in.)
  2. Standoffs (not provided)
  3. Standoffs, 18.00 mm (0.71 in.)
Note You can use an RMC with the heat spreader in either mounting orientation. However, the standoffs used to separate the sbRIO and the RMC are not provided in this kit.
  1. Fasten the heat spreader to the mounting surface with the provided 16 mm standoffs and tighten completely.
    Note (Optional) You can use thermal interface material between the heat spreader and mounting surface. Note that thermal interface material may affect system stack height and levelness.
  2. When mounting the NI sbRIO-9628/9629/9638, fasten the provided 18 mm standoffs to mounting surface in the sbRIO footprint holes not used to fasten the heat spreader. Tighten completely.
  3. Align the sbRIO model to standoff holes and fasten using standoffs of the appropriate height.
    Notice Use caution when aligning the sbRIO model. Once it has been fastened, separating the heat spreader and sbRIO device will be difficult and could potentially damage components.
    Notice The thermal pad is a viscoelastic material and compressing it too quickly places a large amount of stress on board components. If you must use an automatic screwdriver, fasten these screws at a rate less than 4.23 mm/s (10 in./min.) to prevent damage during assembly.
  4. Align the RMC to the standoff holes and mate the RMC connectors. Fasten using the provided screws.
    Note Tighten the screws to 0.56 N · m (5.0 lb · in) of torque.