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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.

Summary of Contents for NI 9919

Page 1: ...oduct 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...

Page 2: ...r View 3 Removable Top Panel 4 Power Indicator LED 5 Optional Touchscreen Display 6 USB Port 7 Rack Mount Rails 8 Rear Panel Captive Screws 9 I O Connectors 10 Ethernet Ports 11 GPS Connector TNC Styl...

Page 3: ...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...

Page 4: ...cuit 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...

Page 5: ...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...

Page 6: ...rew 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...

Page 7: ...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 I...

Page 8: ...ications 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 mount...

Page 9: ...919 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 Al...

Page 10: ...hows 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 Co...

Page 11: ...nd the four power supply mounting screws to panel mount your power supply Figure 10 NI 9919 Power Supply Mounting Holes Note NI does not recommend tapping the mounting plate Mounting Equipment on the...

Page 12: ...afety ground system for safe operation The installer must use a green or green yellow wire for this purpose The safety ground method shall be reliable and meet applicable safety codes Figure 11 Safety...

Page 13: ...connect the chassis and power supply in the NI 9919 to the internal ground screws shown in Figure 12 You can use any internal ground screw to ground the power supply and chassis Figure 12 Internal Gr...

Page 14: ...des a power connector with backshell and a safety ground terminal as shown in Figure 13 Connect neutral and line to the N and L terminals on the power connector and the ground to the safety ground ter...

Page 15: ...necting cables to the barrier strips use ring or spade lugs to connect to the 8 stud for outside connections and 0 25 in wide female quick connects for the inside connections Terminate the cable shiel...

Page 16: ...as shown in Figure 15 Using the middle mounting positions on the rack mount rails is optional When placing the NI 9919 in a rack avoid placing the enclosure above a heat source as rising heat can aff...

Page 17: ...diameter 10 AWG to 0 644 mm cross section diameter 22 AWG copper conductor wire with 8 mm 0 31 in of insulation stripped from the end Ring spade terminals Stud size 4 mm 8 Maximum width 9 4 mm 0 370...

Page 18: ...Minimize Our Environmental Impact web page at ni com environment This page contains the environmental regulations and directives with which NI complies as well as other environmental information not...

Page 19: ...ter your National Instruments product Product registration facilitates technical support and ensures that you receive important information updates from NI National Instruments corporate headquarters...

Page 20: ...s You can find information about end user license agreements EULAs and third party legal notices in the readme file for your NI product Refer to the Export Compliance Information at ni com legal expor...

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