National Instruments NI 9919 User manual

INSTALLATION GUIDE AND SPECIFICATIONS
NI 9919
Shielded Rack-Mount Enclosure for CompactRIO and NI CompactDAQ
This document explains how to set up and install the National Instruments 9919 rack-mount
enclosure.
Caution National Instruments makes no product safety or CE marking compliance
claims for the NI 9919. The end user is responsible for conformity to any and all
compliance requirements.
Caution Do not operate or install the NI 9919 in a manner not specified in this
guide. Product misuse can result in a hazard. You can compromise the safety
protection built into the product if the product is damaged in any way. If the product
is damaged, return it to National Instruments for repair.
Caution The safety guidelines and specifications in this document are specific to
the NI 9919. The other components in the system might not meet the same
specifications. Refer to the documentation for each component in the system to
determine the safety ratings and specifications for the entire system.
Caution The NI 9919 requires a connection from the premise wire safety ground
to the earth ground terminal (protective earth). The earth safety ground must be
connected during use of this equipment to minimize shock hazards refer to the
Connecting Safety Ground section for instructions on connecting safety ground.
Before You Begin Refer to the documentation for your chassis and power supply
to find installation and grounding instructions specific to your devices.

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Figure 1. NI 9919 Parts Locator Diagram
1 NI 9919 Front View
2 NI 9919 Rear View
3 Removable Top Panel
4 Power Indicator LED
5 Optional Touchscreen Display
6USBPort
7 Rack Mount Rails
8 Rear Panel Captive Screws
9 I/O Connectors
10 Ethernet Ports
11 GPS Connector (TNC Style)
12 Fuse Holder
13 Power Connector with Backshell
14 Earth Ground Terminal (Protective Earth)
4
7
3
12
13
8
5
8
11
10
1
2
9
6
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Safety Guidelines for High Voltage
If you are installing high-voltage devices in the NI 9919, take the following precautions. The
NI 9919 has a high-voltage label on the inside of the back panel as shown in Figure 2.
Figure 2. NI 9919 High-Voltage Label
NI recommends you place an additional high-voltage label on the outside of the back panel in
the 2.0 in. × 3.5 in. area shown in Figure 3.
Figure 3. User-Placed High-Voltage Label
Caution Ensure that installation is performed only by qualified personnel.
Warning This icon denotes a warning advising you to take precautions to avoid
electrical shock.
1 High-voltage label on the inside of the back panel
1 User-placed high-voltage label on the outside of the back panel
1
1

4|ni.com |NI 9919 Installation Guide and Specifications
Caution The NI 9919 must be installed in a secure enclosure or a rack which is
accessible only by the use of a tool, as shown in Figure 4.
Caution A main input power switch or circuit-breaker must be included in the
installation as shown in Figure 4. The switch/circuit-breaker must be suitably located
and easily reached, and clearly marked as the power disconnect device for this product.
Figure 4. Secure Rack
1 Front view of secure rack
2 Rear view of secure rack
3 Main input power switch
4 NI 9919 inside a secure rack (front view)
5 Lock securing the rack
6 NI 9919 inside a secure rack (rear view)
6
5
4
5
3
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Accessing the NI 9919
The NI 9919 has a back panel that opens and removable top and bottom panels for accessibility.
Caution Ensure that installation and maintenance are performed only by qualified
personnel.
Opening the Back Panel
Complete the following steps to open the back panel of the NI 9919.
Figure 5. Opening the Back Panel
1 Unscrew the rear panel captive screws. 2 Pull the back panel down.
1
1
2

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Removing the Top or Bottom Panel
Complete the following steps to remove the top or bottom panel.
Figure 6. Removing the Top and Bottom Panels
NI 9919 Assembly Screws
The NI 9919 comes with 17 screws for assembly. Refer to Table 1 for screw descriptions.
1 Unscrew the 8 mounting screws for the panel. 2 Remove the panel from the NI 9919 enclosure.
Table 1. NI 9919 Screw Descriptions
Screw Use Quantity Description
USB Cable Mounting Screws 2Screw, M3X6, PHIL, PNHD, SS, Nylon Patch
Front Panel Mounting Screws 4Screw, M3X5, PHIL, FLHD, SS, Nylon Patch
Handle Mounting Screws 4Screw, M4X10, PHIL, FLHD, SS, Nylon Patch
Power Supply Mounting Screws 4Screw, M4X6, PHIL, PNHD, SS, Nylon Patch
Chassis Mounting Screws 3Screw, M4X25, PHIL, FLHD, SS
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Installing the Front Panel
Complete the following steps to install the NI 9919 front panel.
Figure 7. Installing the Front Panel
1 Install the power LED using a washer and nut.
2 Install the USB cable using two USB cable mounting screws.
3 Install the optional touchscreen display using the four screws included.
4 Install the optional touchscreen display power board using the four screws and four standoffs included.
5 Install the front panel using the four front panel mounting screws.
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Installing the NI 9919 Rack Mount Handles
Complete the following steps to install the NI 9919 rack mount handles.
Figure 8. Installing the Rack Mount Handles
1 Align the handle and handle mounting screws. 2 Tighten the handle into place.
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Installing the Fuse Holder in the NI 9919
Complete the following steps to install the fuse holder in the NI 9919.
Figure 9. Installing the Fuse Holder
The NI 9919 fuse holder supports two different fuse sizes. Use the appropriate fuse insert listed
in Table 2 for the size of fuse you want to use. Use the fuse size that is appropriate for your
application.
1 Align the fuse holder, gasket, and nut.
2 Tighten the fuse holder in place using the nut.
3 Install the fuse insert in the fuse holder.
Table 2. Fuse Inserts
Fuse Insert Color Fuse Size
Gray 1/4 in. × 1-1/4 in. (3AG)
Black 5 mm × 20 mm
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Mounting the Chassis Directly to the NI 9919
The NI 9919 supports five mounting hole configurations that correspond to various NI chassis.
Table 3 shows the dimensions of the five mounting hole configurations. Visit ni.com/info
and enter 9919chassis for a complete list of chassis the NI 9919 supports.
Table 3. NI 9919 Mounting Hole Configurations
Configuration Chassis Mounting Hole Dimensions
1
2
3
4
5
5
5
4
3
5
22
1
165.1 mm (6.5 in.)
141.7 mm
(5.58in.)
47.2 mm
(1.86 in.)
69.9 mm
(2.75 in.)
47.2 mm
(1.86 in.)
158.3mm
(6.23in.)
40.6 mm
(1.60 in.)
303.3mm
(11.94 in.)