National Instruments cRIO-908 Series User manual

cRIO-9082

INSTALLATION INSTRUCTIONS
Rack Mounting Kit with DIN Rail
for CompactRIO and CompactDAQ
The National Instruments CompactRIO rack mounting kit with DIN rail is an accessory you can use to
mount a CompactRIO chassis and other DIN rail-mountable equipment on a standard 19-inch rack.
Note You need a #2 Phillips screwdriver to install the rack mounting kit.
The NI CompactRIO rack mounting kit with DIN rail contains the following components:
Figure 1. Components of the NI CompactRIO Rack Mounting Kit with DIN Rail
1 Bracket with DIN Rail 2 Top and Bottom Covers (2) 3 Front Cover
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Installing the Rack Mounting Kit
Complete the following steps to install the rack mounting kit on a standard 19-inch rack:
1. Secure the bracket in position with four screws suitable for the rack. Screws are not included in the
kit.
Note Do not overtighten the screws. You may need to adjust the screws when assembly is complete.
2. Install a DIN rail clip on the chassis using the screws shipped with the clip. Refer to the chassis
documentation for information about installing the DIN rail clip. The following figure shows how
to install the DIN rail clip that fits the NI cRIO-908x chassis.
Figure 2. Installing a DIN Rail Clip on the NI cRIO-908x

©National Instruments Corporation 3 Rack Mounting Kit with DIN Rail for CompactRIO and CompactDAQ
3. Clip the chassis and DIN rail clip assembly to the DIN rail, as shown in Figure 3.
Figure 3. Attaching the DIN Rail Clip to the DIN Rail
4. Make all necessary electrical connections as decribed in the controller, chassis, and I/O module
documentation. Route all cables through the openings in rear surface of the bracket.
5. Connect the chassis ground wire to the bracket grounding screw. Refer to Figure 5 for the location
of the bracket grounding screw.
6. Install the top and bottom covers as shown in Figure 4.
Figure 4. Installing the Top and Bottom Covers
1 DIN Rail Clip 2 DIN Rail Spring 3 DIN Rail
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7. Install cable ties (not included) to relieve strain on the cables if necessary. You can attach cable ties
to the mounts on the top and bottom covers. Figure 5 does not show the top covers, but the top and
bottom covers are identical.
Figure 5. NI cRIO-908x Mounted in Bracket, Front View
1 Rack Mounting Bracket
2 Cable Entry/Exit Openings
3 Grounding Screw
4 Handles (2)
5BottomCover
6 Mounts for Cable Ties (20)
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©National Instruments Corporation 5 Rack Mounting Kit with DIN Rail for CompactRIO and CompactDAQ
Figure 6. NI cRIO-908x Mounted in Bracket, Top View
8. Install the front cover as shown in Figure 7.
Figure 7. Installing the Front Cover
9. Tighten the four captive screws on the front cover. Do not tighten past 0.5 N ⋅m (4.9 lb ⋅in.) of
torque.
1 Cable Tie 2 Mounts for Cable Ties (20)
1 2 2

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The following figure shows the dimensions of the rack mounting kit.
Figure 8. Dimensions of Rack Mounting Kit
11.43mm (0.450 in.)
331.77 mm (13.062 in.)
292.1 mm (11.500 in.)
39.67 mm (1.562 in.)
462.28 mm (18.200 in.)
482.6 mm (19.000 in.)
221.23mm
(8.710 in.)
146.05 mm
(5.750 in.)