National Instruments PXIe-8238 Manual de usuario

USER MANUAL

PXIe-8238

Dual-Port 10 Gigabit Ethernet Peripheral Module

This document provides reference information for PXI Express and the PXIe-8238 module.

Contents

Electromagnetic Compatibility Guidelines...............................................................................1

Related Documentation.............................................................................................................2

PXI Express Features................................................................................................................ 2

Benefits of PXI Express....................................................................................................2

PXIe-8238 Overview................................................................................................................ 3

Functional Overview.........................................................................................................3

Functional Description......................................................................................................3

National Instruments Software..........................................................................................4

Specifications............................................................................................................................ 5

Features............................................................................................................................. 5

Front Panel Dimensions.................................................................................................... 5

Electrical........................................................................................................................... 6

Physical............................................................................................................................. 7

Environmental...................................................................................................................7

Shock and Vibration..........................................................................................................8

Safety................................................................................................................................ 8

SFP+ Connectors Pinout......................................................................................................... 10

Worldwide Support and Services............................................................................................ 12

Electromagnetic Compatibility Guidelines

This product was tested and complies with the regulatory requirements and limits for

electromagnetic compatibility (EMC) stated in the product specifications. These requirements

and limits provide reasonable protection against harmful interference when the product is

operated in the intended operational electromagnetic environment.

This product is intended for use in industrial locations. However, harmful interference may

occur in some installations, when the product is connected to a peripheral device or test object,

or if the product is used in residential or commercial areas. To minimize interference with

radio and television reception and prevent unacceptable performance degradation, install and

use this product in strict accordance with the instructions in the product documentation.

Furthermore, any modifications to the product not expressly approved by National Instruments

could void your authority to operate it under your local regulatory rules.

Caution This icon denotes a caution, which advises you of precautions to take to

avoid injury, data loss, or a system crash.

Caution The protection the PXIe-8238 provides can be impaired if it is used in a

manner not described in the user documentation.

Caution To ensure the specified EMC performance, operate this product only with

shielded cables and accessories.

Related Documentation

The following documents contain information that you might find helpful as you read this

manual:

• Your chassis documentation

•PXI Express Hardware Specification, Revision 2.0

•PXI-6 PXI Express Software Specification

•PICMG CompactPCI Express EXP.0 R1.0 Specification

•PCI Express Base Specification, Revision 2.1, PCI Special Interest Group

PXI Express Features

Benefits of PXI Express

The PXI (PCI eXtensions for Instrumentation) industry standard, an open specification

governed by the PXI Systems Alliance (PXISA), has quickly gained adoption and grown in

prevalence in test, measurement, and control systems since its release in 1998. One of the key

elements driving the rapid adoption of PXI is its use of PCI in the communication backplane.

As the commercial PC industry has improved the available bus bandwidth by evolving PCI to

PCI Express, PXI is now able to meet even more application needs by integrating PCI Express

into the PXI standard. By taking advantage of PCI Express technology in the backplane, PXI

Express increases the available PXI bandwidth from up to 132 MB/s to up to 8 GB/s for a

more than 60x improvement in bandwidth.

PXI Express maximizes both hardware and software compatibility with PXI modules. PXI

Express hybrid slots deliver both PCI and PCI Express signaling to accept devices that use

PXI communication and triggering or the newer PXI Express standard. Software compatibility

is maintained because PCI Express uses the same OS and driver model as PCI, resulting in

complete software compatibility among PCI-based systems, for example PXI, and PCI

Express-based systems such as PXI Express.

PXI Express, like PXI, leverages from the CompactPCI specification to define a rugged,

modular form factor that offers superior mechanical integrity and easy installation and removal

of hardware components. PXI Express products offer higher and more carefully defined levels

of environmental performance required by the shock, vibration, temperature, and humidity

extremes of industrial environments. Mandatory environmental testing and active cooling is

2| ni.com | PXIe-8238 User Manual

added to the CompactPCI mechanical specification to ease system integration and ensure

multivendor interoperability.

The demanding timing and synchronization requirements of instrumentation systems are met

by the integrated features of PXI Express. Not only are the trigger bus, 10 MHz system

reference clock, and star trigger bus available in PXI retained by PXI Express, but new timing

and synchronization features that include a 100 MHz differential system reference clock for

the synchronization of multiple modules and three differential star trigger buses for the

distribution of precise clock and trigger signals have been added. Differential timing and

synchronization signals provide PXI Express systems with increased noise immunity and the

ability to transmit clock signals at higher frequencies.

PXIe-8238 Overview

Functional Overview

The PXIe-8238 is a peripheral module that provides up to 10 Gigabit Ethernet (GbE)

connectivity on two SFP+ ports for a PXI Express system. It can attach to a PXI Express

system via a high-bandwidth, low-latency PXI Express backplane Gen2 x8 link.

With the 10Gb Ethernet, it allows offloading data from a PXI Express system to an external

storage solution or a server for further analysis. It also allows data exchange and aggregation

across two or more PXI Express systems.

Functional Description

The PXIe-8238 is a peripheral module in a 1-slot 3U PXI Express form factor. The following

figure is a functional block diagram of the PXIe-8238. Following the diagram is a description

of each logic block shown.

Figure 1. PXIe-8238 Block Diagram

PXI Express PCI Express

Switch

NI ASIC

Ethernet

Controller

SFP+

Connector

SFP+

Connector

x8 x8

OCP Mezzanine Card

The PXIe-8238 consists of the following logic blocks on two circuit card assemblies (CCA):

• The PXI Express Connectors connect the PXIe-8238 to the PXI Express/CompactPCI

Express backplane.

• The PCI Express Switch links the PXI Express backplane to the Ethernet controller on the

OCP mezzanine card with PCI Express x8 links.

• The OCP Mezzanine Card block consists of the Ethernet controller and the SFP+

connectors that provide the 10 GbE connectivity.

PXIe-8238 User Manual | © National Instruments | 3

National Instruments Software

National Instruments has developed several software tools you can use with the PXIe-8238.

National Instruments’ hardware and software work together to help you make the most of your

PXI Express system. The LabVIEW, Measurement Studio, and LabWindows™/CVI™

application development environments combine with leading hardware drivers such as NI-

DAQmx to provide exceptional control of NI hardware. Instrument drivers are available at

ni.com/idnet to simplify communication with instruments over a variety of buses.

LabVIEW is a powerful and easy-to-use graphical programming environment you can use to

acquire data from thousands of different instruments including USB, IEEE 488.2, VXI, serial,

PLCs, and plug-in boards. LabVIEW helps you convert acquired data into meaningful results

using powerful data analysis routines. Add-on tools provide additional specialized

functionality. For more information, visit ni.com/labview and ni.com/toolkits.

If you prefer to use Microsoft’s Visual Basic, Visual C++, and Visual Studio .NET for the core

of your application, Measurement Studio adds tools for measurement and automation to each

language. For more information, visit ni.com/mstudio.

LabWindows/CVI is an interactive ANSI C programming environment designed for building

virtual instrument applications. LabWindows/CVI delivers a drag-and-drop editor for building

user interfaces, a complete ANSI C environment for building your test program logic, and a

collection of automated code generation tools, as well as utilities for building automated test

systems, monitoring applications, or laboratory experiments. For more information, visit

ni.com/lwcvi.

NI-DAQmx provides an extensive library of functions you can call from your application

development environment or interactive environment such as NI Signal Express. These

functions provide an intuitive API for National Instruments multifunction DAQ products.

Features available include analog input (A/D conversion), buffered data acquisition (high-

speed A/D conversion), analog output (D/A conversion), waveform generation, digital I/O,

counter/timer operations, SCXI signal conditioning, RTSI or PXI Express synchronization,

self-calibration, messaging, and acquiring data to extended memory. For more information,

visit ni.com/daq.

National Instruments modular instruments use specialized drivers suited to each product’s

specialization. Express VIs provide customized, interactive programming of instruments in a

single interface and soft front panels provide an interface for testing the functionality of each

instrument with no programming required. NI Switches, DMMs, High-Speed DIO, High-

Speed Digitizers, and Sources each have customized drivers for high-end modular

instrumentation systems. RF applications leverage two drivers, NI-RFSG and NI-RFSA and

Dynamic Signal Acquisition is available through NI-DAQmx. For more information, visit

ni.com/modularinstruments.

4| ni.com | PXIe-8238 User Manual

You can expand the timing and triggering functionality of your PXI Express system with PXI

Express Timing and Synchronization products. These products provide precision clock

sources, custom routing of triggers for multichassis synchronization, clock sharing, and more

and are programmed with NI-Sync. For more information, visit ni.com/pxi.

NI-VISA is the National Instruments implementation of the VISA specification. VISA is a

uniform API for communicating and controlling USB, Serial, GPIB, PXI, PXI Express, VXI,

and various other types of instruments. This API aids in the creation of portable applications

and instrument drivers. For information about writing your own PXI Express instrument driver

with NI-VISA, refer to the NI-VISA Getting Started Manual and the readme.txt file in the

NI-VISA directory. For more information, visit ni.com/visa.

With LabVIEW for Linux and support for more than two hundred devices on Linux with the

NI-DAQmx driver, you now can create Virtual Instruments based on the Linux OS. The NI-

VISA driver for Linux has improved instrument control in Linux, and NI Modular Instruments

are partially supported. For more information, visit ni.com/linux.

Specifications

This document lists the electrical, mechanical, and environmental specifications of the

PXIe-8238 dual-port 10 Gigabit Ethernet peripheral module.

Features

PXIe-8238

Ethernet Connectivity Two SFP+ ports support 10GBASE-SR optic and Copper

Direct Attach physical media

Data rate supported per port Up to 10 GbE

PXI Express Link

Configuration

Gen2 x8 PCI Express connection (maximum throughput is

achievable with PXI Express Gen2 x8)

Slot Requirement One peripheral slot

LED Indicators LINK (solid) and ACTIVITY (blinking)

LINK SPEED (green = 10 Gbps; yellow = 1 Gbps)

Front Panel Dimensions

The following figure shows the front panel layout and dimensions of the PXIe-8238.

Dimensions are in inches (millimeters).

PXIe-8238 User Manual | © National Instruments | 5

Figure 2. PXIe-8238 Front Panel Layout and Dimensions

2.796 in. (71.01 mm)

2.111 in. (53.61 mm)

0.000 in. (0.00 mm)

2.993 in. (76.02 mm)

2.645 in. (67.17 mm)

2.296 in. (58.32 mm)

1.948 in. (49.47 mm)

0.000 in. (0.00 mm)

0.249 in. (6.33 mm)

0.612 in. (15.54 mm)

NI PXIe-8238

ETH 0

LINK/ACT

SPEED

ETH 1

Electrical

Power Rail Typical Value Max Value

+3.3 VDC 0.62 A 0.93 A

+12 VDC 1.02 A 1.68 A

Total Power 14.28 W 23.23 A

6| ni.com | PXIe-8238 User Manual

Physical

Board dimensions 1-slot 3U PXI Express peripheral module

Compatibility Fully compatible with PXI Express

Specification 1.0

Weight 249 g (0.55 lb) typical

Caution Clean the hardware with a soft, nonmetallic brush. Make sure the

hardware is completely dry and free from contaminants before returning it to

service.

Environmental

Operating Environment

Ambient temperature range 0 °C to 55 °C (Tested in accordance with

IEC-60068-2-1 and IEC-60068-2-2.)

Relative humidity range 10% to 90%, noncondensing (Tested in

accordance with IEC-60068-2-56.)

Maximum altitude 2,000 m (800 mbar)

Pollution Degree 2

Indoor use only.

Storage Environment

Ambient temperature range -40 °C to 71 °C (Tested in accordance with

IEC-60068-2-1 and IEC-60068-2-2.)

Relative humidity range 5% to 95%, noncondensing (Tested in

accordance with IEC-60068-2-56.)

PXIe-8238 User Manual | © National Instruments | 7

Shock and Vibration

Operating shock 30 g peak, half-sine, 11 ms pulse (Tested in

accordance with IEC-60068-2-27. Meets MIL-

PRF-28800F Class 2 limits.)

Random vibration

Operating 5 Hz to 500 Hz, 0.3 grms

Nonoperating 5 Hz to 500 Hz, 2.4 grms (Tested in accordance

with IEC-60068-2-64. Nonoperating test

profile exceeds the requirements of MIL-

PRF-28800F, Class 3.)

Safety

This product is designed to meet the requirements of the following standards of safety for

information technology equipment:

• IEC 61010-1, EN 61010-1

• CAN/CSA-C22.2 No. 61010-1

Note For UL and other safety certifications, refer to the product label or the Online

Product Certification section.

Electromagnetic Compatibility

This product meets the requirements of the following EMC standards for electrical equipment

for measurement, control, and laboratory use:

• EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity

• EN 55011 (CISPR 11): Group 1, Class A emissions

• EN 55022 (CISPR 22): Class A emissions

• EN 55024 (CISPR 24): Immunity

• AS/NZS CISPR 11: Group 1, Class A emissions

• AS/NZS CISPR 22: Class A emissions

• FCC 47 CFR Part 15B: Class A emissions

• ICES-001: Class A emissions

Note In the United States (per FCC 47 CFR), Class A equipment is intended for

use in commercial, light-industrial, and heavy-industrial locations. In Europe,

Canada, Australia and New Zealand (per CISPR 11) Class A equipment is intended

for use only in heavy-industrial locations.

Note Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical

equipment that does not intentionally generate radio frequency energy for the

treatment of material or inspection/analysis purposes.

8| ni.com | PXIe-8238 User Manual

Note For EMC declarations and certifications, and additional information, refer to

the Online Product Certification section.

CE Compliance

This product meets the essential requirements of applicable European Directives, as follows:

• 2014/35/EU; Low-Voltage Directive (safety)

• 2014/30/EU; Electromagnetic Compatibility Directive (EMC)

Online Product Certification

Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance

information. To obtain product certifications and the DoC for this product, visit ni.com/

certification, search by model number or product line, and click the appropriate link in the

Certification column.

Environmental Management

NI is committed to designing and manufacturing products in an environmentally responsible

manner. NI recognizes that eliminating certain hazardous substances from our products is

beneficial to the environment and to NI customers.

For additional environmental information, refer to the 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 included in

this document.

Waste Electrical and Electronic Equipment (WEEE)

EU Customers At the end of the product life cycle, all NI products must be

disposed of according to local laws and regulations. For more information about

how to recycle NI products in your region, visit ni.com/environment/weee.

Battery Replacement and Disposal

Cd/Hg/Pb

Battery Directive This device contains a long-life coin cell battery. If you need to

replace it, use the Return Material Authorization (RMA) process or contact an

authorized National Instruments service representative. For more information about

compliance with the EU Battery Directive 2006/66/EC about Batteries and

Accumulators and Waste Batteries and Accumulators, visit ni.com/environment/

batterydirective.

电子信息产品污染控制管理办法（中国 RoHS）

中国客户 National Instruments 符合中国电子信息产品中限制使用某些有害物

质指令(RoHS)。关于 National Instruments 中国 RoHS 合规性信息，请登录

ni.com/environment/rohs_china。(For information about China RoHS

compliance, go to ni.com/environment/rohs_china.)

PXIe-8238 User Manual | © National Instruments | 9

SFP+ Connectors Pinout

The following figure shows the pinouts for the SFP+ connectors on the PXIe-8238. The

following table lists and describes the SFP+ connector signals.

Figure 3. SFP+ Connector Pinout

NI PXIe-8238

ETH 0

LINK/ACT

SPEED

ETH 1

VeeR

RD–

RD+

VeeR

VccR

VccT

TD+

VeeT

TD–

VeeT

VeeR

RS1

Rx_LOS

RSO

MOD_ABS

SCL

Tx_Disable

SDA

Tx_Fault

VeeT

20 1

Table 1. SFP+ Connector Signals

Pin Symbol Name/Description

1 VeeT Module Transmitter Ground

2 Tx_Fault Module Transmitter Fault

3 Tx_Disable Transmitter Disable; turns off transmitter laser output

4 SDA 2-Wire Serial Interface Data Line

5 SCL 2-Wire Serial Interface Clock

6 Mod_ABS Module Absent; connected to VeeT or VeeR in the module

10 | ni.com | PXIe-8238 User Manual

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