Manual - National Instruments

INSTALLATION GUIDE
SCXI™-1349 SHIELDED CABLE ADAPTER
This guide describes how to connect an SCXI system using the SCXI-1349
shielded cable adapter.
Introduction
Using the SCXI-1349, you can connect an SCXI system to your data
acquisition (DAQ) device. The SCXI-1349 connects any 68-pin E Series
DAQ device, excluding 61XXE devices, to any SCXI module, excluding
SCXI switch modules.
The SCXI-1349 is a connector assembly with three connectors:
•
A 68-pin male connector on the front panel of the adapter
•
A 50-pin male breakout connector on the printed-circuit board of the
adapter
•
A 50-pin bracket-mounted female connector on the rear of the adapter
All three connectors are shown in Figure 1.
National Instruments™, ni.com™, and SCXI™ are trademarks of National Instruments Corporation. Product and company names mentioned herein are
trademarks or trade names of their respective companies.
320791C-01
Copyright © 1994, 2001 National Instruments Corp. All rights reserved.
March 2001
2
1
3
1
2
50-Pin Male Breakout Connector
68-Pin Front-Panel Male Connector
3
50-Pin Bracket-Mounted Female
Connector
Figure 1. SCXI-1349 Adapter Connectors
What You Need to Get Started
To set up and use your SCXI-1349, you need the following items:
❑ Computer
❑ SCXI-1349 Shielded Cable Adapter Installation Guide
❑ One 68-pin E Series DAQ device
❑ SCXI-1000, SCXI-1001, or SCXI-1000DC chassis
❑ At least one SCXI module (excluding SCXI switch modules)
❑ SCXI-1349 shielded cable assembly (cable adapter and 68-pin
shielded cable)
❑ Small flathead screwdriver
SCXI-1349 Shielded Cable Adapter
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Conventions
The following conventions are used in this document:
This icon denotes a caution, which advises you of precautions to take to
avoid injury, data loss, or a system crash.
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to a key concept. This font also denotes text that is a placeholder for a word
or value that you must supply.
monospace
Text in this font denotes text or characters that you should enter from the
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This font is also used for the proper names of disk drives, paths, directories,
programs, subprograms, subroutines, device names, functions, operations,
variables, filenames and extensions, and code excerpts.
Safety Information
Cautions Do not operate the device in an explosive atmosphere or where there may be
flammable gases or fumes.
Do not operate damaged equipment. The safety protection features built into this device
can become impaired if the device becomes damaged in any way. If the device is damaged,
turn the device off and do not use it until service-trained personnel can check its safety.
If necessary, return the device to National Instruments for service and repair to ensure that
its safety is not compromised.
Do not operate this equipment in a manner that contradicts the information specified in this
document. Misuse of this equipment could result in a shock hazard.
Do not substitute parts or modify equipment. Because of the danger of introducing
additional hazards, do not install unauthorized parts or modify the device. Return the
device to National Instruments for service and repair to ensure that its safety features are
not compromised.
You must insulate all of your signal connections to the highest voltage with which the
SCXI-1349 can come in contact.
Connections, including power signals to ground and vice versa, that exceed any of the
maximum signal ratings on the SCXI device can create a shock or fire hazard, or can
damage any or all of the boards connected to the SCXI chassis, the host computer, and the
SCXI device. National Instruments is not liable for any damages or injuries resulting from
incorrect signal connections.
© National Instruments Corporation
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SCXI-1349 Shielded Cable Adapter
Clean the cable adapter by brushing off light dust with a soft non-metallic brush. Remove
other contaminants with a stiff non-metallic brush. The unit must be completely dry and
free from contaminants before returning it to service.
The cable adapter must be used with a UL-listed SCXI chassis.
Installing Modules in Your SCXI Chassis
Follow these steps to prepare the chassis for integration into the system
while referring to Figure 2 and 3:
1.
Turn the power off and unplug the SCXI chassis.
2.
Install the SCXI modules into the chassis—refer to your
module/chassis documentation for instructions.
3.
Within the SCXI chassis, identify the appropriate SCXI module to
connect to the cable adapter. Refer to the SCXI Quick Start Guide to
determine the appropriate module.
4.
Insert the 50-pin female connection on the rear of the SCXI-1349 into
the 50-pin male connector on the rear of the appropriate SCXI module.
5.
Using the two screws provided with the SCXI-1349 chassis adapter,
fasten the adapter to the rear of the SCXI chassis.
6.
Connect either end of the 68-pin shielded cable to the SCXI-1349
adapter.
SCXI-1349 Shielded Cable Adapter
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1
SE
FU L
L
PU
2
4
3
4
1
2
SCXI-1000, SCXI-1001, or SCXI-1000DC Chassis
SCXI-1349 Cable Adapter
3
4
68-Pin Shielded Cable
Screws
Figure 2. SCXI-1349 Cable Assembly
© National Instruments Corporation
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SCXI-1349 Shielded Cable Adapter
7.
Connect the other end of the 68-pin shielded cable to the DAQ device.
2
1
3
1
SCXI-1000, SCXI-1001, or SCXI-1000DC
Chassis
2
3
Shielded Cable Connected to SCXI-1349 Cable Adapter
68-Pin E Series DAQ Device
Figure 3. Complete SCXI System
Specifications
This section lists the specifications of the SCXI-1349 shielded cable
adapter. These ratings are typical at 25 °C unless otherwise stated.
Analog Input
Maximum working voltage ....................30 Vrms, 42 Vpk, 60 VDC
(signal + common-mode)
SCXI-1349 Shielded Cable Adapter
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Environmental
Operating temperature............................ 0 to 50 °C
Storage temperature ............................... –20 to 70 °C
Relative humidity ................................... 10 to 90% noncondensing
Safety
Designed in accordance with IEC 61010-1, UL 3111-1, and CAN/CSA
C22.2 No. 1010.1 for electrical measuring and test equipment.
For use at altitudes up to 2000 meters.
Installation Category I1
Pollution degree 2
Electromagnetic Compatibility
EMC/EMI............................................... CE, C-Tick, and FCC Part 15
(Class A) Compliant
Electrical emissions................................ EN 55011 Class A at 10 m
FCC Part 15A above 1 GHz
Electrical immunity................................ Evaluated to EN 61326-1:1997
A1:1998, Table 1
For full EMC and EMI compliance, you must operate this device with shielded
cabling. See the Declaration of Conformity (DoC) for this product for any additional
regulatory compliance information. To obtain the DoC for this product, click
Declaration of Conformity at ni.com/hardref.nsf/ This website lists the DoCs by
product family. Select the appropriate product family, followed by your product, and a link
to the DoC (in Adobe Acrobat format) appears. Click the Acrobat icon to download or read
the DoC.
Note
1
Category I is signal level, such as voltages on a pwb on the secondary of an isolation transformer.
© National Instruments Corporation
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SCXI-1349 Shielded Cable Adapter
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