National Instruments PXIe-8370 Bedienungsanleitung

USER MANUAL

PXIe-8370

MXI-Express x4 Multisystem eXtension Interface for PCI Express,

CompactPCI Express, and PXI Express Bus Systems

This manual describes the features, functions, and operation of the PXIe-8370.

Contents

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

Description and Features...........................................................................................................2

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

PXIe-8370 Overview........................................................................................................ 3

PXIe-8370 Block Diagram................................................................................................4

Basic MXI-Express x4 System......................................................................................... 4

Larger MXI-Express x4 Systems......................................................................................4

Getting Started.......................................................................................................................... 5

Terminology...................................................................................................................... 6

Connecting a PC to an Expansion Chassis........................................................................6

Connecting Additional Expansion Chassis to a System................................................... 7

Installation and Configuration.................................................................................................. 8

Unpacking......................................................................................................................... 8

Hardware Installation........................................................................................................8

PXIe-8370 (194402x-02) LEDs.............................................................................................. 11

Software Installation and Configuration................................................................................. 12

Installation.......................................................................................................................12

Configuring Your System................................................................................................13

Common Questions.................................................................................................................13

General Hardware........................................................................................................... 13

MXI-3 and MXI-4 to MXI-Express x4 Upgrade............................................................ 14

General Software.............................................................................................................14

Electromagnetic Compatibility Guidelines

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

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

requirements and limits are designed to provide reasonable protection against harmful

interference when the product is operated in its intended operational electromagnetic

environment. There is no guarantee that interference will not occur in a particular installation.

To minimize the potential for the product to cause interference to radio and television

reception or to experience unacceptable performance degradation, install and use this product

in strict accordance with the instructions in the product documentation.

The following statements contain important information needed before installing and using

this product:

Caution This product is intended for use in industrial locations. As a result, this

product may cause interference if used in residential areas. Such use must be

avoided unless the user takes special measures to reduce electromagnetic emissions

to prevent interference to the reception of radio and television broadcasts.

Caution Changes or modifications not expressly approved by National Instruments

could void the user’s authority to operate the hardware under the local regulatory

rules.

Caution For EMC compliance, operate this device with shielded cables and

accessories.

Description and Features

MXI-Express x4 uses PCI Express signals over a cable of up to 7 m with PCI Express-to-PCI

Express switches. You can do the following with MXI-Express x4:

• Control a PXI Express or CompactPCI Express backplane with a PCI Express-based PC

• Physically separate the measurement or automation system from a host PC

• Control multiple PXI Express or CompactPCI Express chassis with a single PCI Express-

based PC or PXI Express embedded controller.

The following table lists the products and lists their features for comparison.

Table 1. Feature Comparison of Available MXI-Express x4 Interfaces

Model Slot Type Number of Ports Cable Support

PCIe-8371 PCI Express x4 1 MXI-Express x4 Copper

PCIe-8372 PCI Express x4 2 MXI-Express x4 Copper

PXIe-8370 PXI Express Controller 1 MXI-Express x4 Copper

PXIe-8374 PXI Express Peripheral 1 MXI-Express x4 Copper

Note There are other products not listed in the table above that support MXI-

Express x4 connectivity, such as the HDD-826x series of products. For installation

instructions and other information concerning these products, refer to their

respective manuals.

2| ni.com | PXIe-8370 User Manual

Functional Overview

MXI-Express x4 is based on PCI Express technology. A MXI-Express x4 kit uses PCI Express

switches to enable control of a PXI Express or CompactPCI Express chassis from a PC with an

available PCI Express slot, or from a PXI Express chassis with an available PXI Express slot.

The switch architecture is transparent to device drivers, so no additional software is needed for

CompactPCI Express level support for PXI Express devices in connected chassis.

Note For full PXI/PXI Express functionality such as chassis and controller

identification, trigger routing, and slot detection, install the PXI Platform Services

software included with your kit. You also can find this software at ni.com/

updates by searching for PXI Platform Services.

The link between the PC and the chassis is a x4 cabled PCI Express link. This link is a dual-

simplex communication channel comprised of four low-voltage, differentially driven signal

pairs. The link can transmit at a rate of 10 Gbps in each direction simultaneously.

Note This port is compatible with the cabled PCI Express specification developed

by the PCI-SIG.

The BIOS of some host machines may not support the extension of the PCI-Express fabric or

PCI bus. Because this is the primary function of MXI-Express x4 products, those systems may

not boot or function correctly. To address this issue, certain MXI-Express x4 products have

additional functionality intended to hide all PCI or PCI-Express resources that are connected

to the host machine, and allow NI MXI-Express BIOS Compatibility Software to handle the

enumeration process of these resources instead of the BIOS.

In the cases where this software is required, there may be a dip switch on the board that needs

to be toggled as instructed by the documentation for the software. The functional block

diagram illustrates the location and availability of the dip switch package. Only the first dip

switch in the package is used for this purpose. The other switches serve no function and should

be left in their default position.1

Note Unless NI MXI-Express BIOS Compatibility Software is installed on the host

machine for use, the BIOS Compat Mode dip switch (switch 1) should remain in the

off position. If this mode is enabled on a MXI-Express x4 product in a host machine

that does not have the software installed, the operating system will not detect

connected devices.

PXIe-8370 Overview

The PXIe‑8370 allows you to control PXI and CompactPCI systems from your PC using a

fully transparent MXI‑Express link. It is installed in a PXI chassis and uses a PCI

Express‑to‑PCI bridge to interface with an installed PCIe‑8371 through a copper, x1

MXI‑Express cable.

1On certain legacy MXI-Express x4 products that contain the dip switch package, the secondary

switches may serve a reserved purpose.

PXIe-8370 User Manual | © National Instruments | 3

PXIe-8370 Block Diagram

Figure 1. PXIe-8370 (194402x-02) Block Diagram

Cabled

PCI Express x4

Copper

PCIe Switch

PCIe Gen 1 x4

Note The PXIe-8370 also supports dual link mode, which converts the links to the

chassis backplane into two Gen 1 x8 links instead of four Gen 1 x4 links.

Basic MXI-Express x4 System

The simplest MXI-Express x4 system consists of a PCIe-8371/8372 in a PC connected to a

PXIe-8370 in the controller slot of a PXI Express chassis, as shown in the following figure.

Figure 2. Example of a Basic MXI-Express x4 Link Topology

Host PC to Target PXI Express Chassis

Larger MXI-Express x4 Systems

The PCIe-8372 has two MXI-Express x4 connectors, allowing one PCIe-8372 to host two

different PXIe-8370 cards in separate PXI Express or CompactPCI Express chassis. If multiple

PCI Express slots are available in the host PC, you can connect additional PXI Express chassis

by installing an additional PCIe-8371/8372 in any available PCI Express slot.

4| ni.com | PXIe-8370 User Manual

You can also daisy-chain from a PXI Express chassis already controlled by an embedded

controller, host PC, or laptop to additional PXI Express chassis using MXI-Express x4

products.

The following figures show how you can use MXI-Express x4 cards to connect multiple PXI

Express expansion chassis to a PC in a star or daisy-chain topology.

Figure 3. Example of MXI-Express x4 Star Topology

Figure 4. Example of MXI-Express Daisy-Chain Topology

Getting Started

This section explains what you will need to set up various MXI-Express x4 hardware

configurations.

The products covered by this guide are the PCIe-8371/8372 and PXIe-8370/8374. For the

remainder of this manual, the term MXI-Express x4 product refers to any of these products.

Additional compatible products are included in subsequent tables, but are not covered in this

manual.

PXIe-8370 User Manual | © National Instruments | 5

Terminology

The following terms may be used throughout this document:

•Host PC—A host computer with at least one PCI Express x4 or wider slot available.

Note Using a PCI Express slot wider than x4 may result in negotiation down

to x1 width, and therefore limiting bandwidth. This is uncommon in newer PCs.

•Expansion Chassis—An expansion chassis of any of the following types:

– CompactPCI Express chassis

– PXI Express chassis

– NI HDD RAID

•MXI-Express x4 copper cable—Standard PCI Express specification-compliant cable

with x4 PCI Express connectors.

Note Refer to the Cabling section for details. Most MXI-Express kits include

the cable, but not all.

•Host Board—The MXI-Express x4 board of a cabled pair of boards that is closer to the

CPU.

•Target Board—The MXI-Express x4 board of a cabled pair of boards that is farther from

the CPU.

•Cabled Pair—Two MXI-Express x4 boards that are connected with a single cable.

Connecting a PC to an Expansion Chassis

Using a MXI-Express x4 Copper Cable

Refer to the Terminology section for more detail on the items in this list.

Equipment Needed

• Host PC

• Expansion chassis

• MXI-Express x4 copper cable

• A MXI-Express x4 host board and target board that is appropriate for the host system slot

and target chassis. Refer to the following table for more information.

6| ni.com | PXIe-8370 User Manual

From Host Targets

Slot Type Product PXI Express

Chassis

HDD RAID

PXIe-8370 HDD-8263 HDD-8264 HDD-8265

PCI Express

PCIe-8371 ✓ ✓ ✓ ✓

PCI Express

PCIe-8372 ✓ ✓ ✓ ✓

Note: For installation instructions and other information about the NI HDD series of

products, refer to their respective user manuals.

Note For full PXI or PXI Express functionality, refer to the Software Installation

and Configuration section.

Connecting Additional Expansion Chassis to a System

Using a MXI-Express x4 Copper Cable

Refer to the Terminology section for more detail on the items in this list.

Equipment Needed

• Chassis to daisy-chain from

• Expansion chassis to daisy-chain to

• MXI-Express x4 copper cable

• A MXI-Express x4 host board and target board that is appropriate for the host system slot

and target chassis. Refer to the following table for more information.

From

Chassis

Targets

Slot Type Product PXI Express

Chassis

HDD RAID

PXIe-8370 HDD-8263 HDD-8264 HDD-8265

PCI Express

PXIe-8374 ✓ ✓ ✓ ✓

PCI Express

NI 8262 — ✓ ✓ ✓

Note: For installation instructions and other information about the NI HDD series of

products, refer to their respective user manuals.

Note For full PXI or PXI Express functionality, refer to the Software Installation

and Configuration section.

PXIe-8370 User Manual | © National Instruments | 7

Installation and Configuration

This section explains how to unpack, install, and configure the MXI-Express x4 hardware and

software.

Unpacking

Your MXI-Express x4 cards are shipped in antistatic packages to prevent electrostatic damage

(ESD) to the devices. ESD can damage several components on the device.

Caution Never touch the exposed pins of connectors. Doing so may damage the

device.

To avoid such damage in handling the device, take the following precautions:

• Ground yourself using a grounding strap or by holding a grounded object.

• Touch the antistatic package to a metal part of the computer chassis before removing the

device from the package.

Remove the device from the package and inspect the device for loose components or any sign

of damage. Notify NI if the device appears damaged in any way. Do not install a damaged

device into the computer or into a PXI Express or CompactPCI Express chassis.

Store the device in the antistatic envelope when not in use.

Hardware Installation

The following are general instructions for installing the MXI-Express x4 cards. Consult your

computer user manual or technical reference manual for specific instructions and warnings.

Installing a PXIe-8370 or PXIe-8374

The following table provides information on which PXI Express MXI-Express x4 boards are

compatible with which chassis slot types.

Table 2. NI MXI-Express x4 PXI Express Board Slot Type Compatibility

NI PXI Express Board

PXI Express Chassis

Controller Peripheral Hybrid

PXIe-8370 ✓— —

PXIe-8374 — ✓ ✓

Note For this section, all the above products will be referred to as an NI PXI

Express board.

8| ni.com | PXIe-8370 User Manual

Complete the following steps to install the NI PXI Express board in your PXI Express or

CompactPCI Express chassis.

1. Power off your PXI Express or CompactPCI Express chassis, but leave it plugged in

while installing the NI PXI Express board. The power cord grounds the chassis and

protects it from electrical damage while you install the module.

Caution To protect both yourself and the chassis from electrical hazards,

leave the chassis off until you finish installing the NI PXI Express board.

2. Remove or open any doors or covers blocking access to the slot in which you intend to

install the NI PXI Express board.

3. Touch a metal part of the chassis to discharge any static electricity that might be on your

clothes or body.

4. Make sure the injector/ejector handle is in its downward position. Be sure to remove all

connector packaging and protective caps from retaining screws on the module. Align the

NI PXI Express board with the card guides on the top and bottom of the system controller

slot.

Caution Do not raise the injector/ejector handle as you insert the NI PXI

Express board. It will not insert properly unless the handle is in its downward

position so that it does not interfere with the injector/ejector rail on the chassis,

as shown in the figure below.

5. Hold the handle as you slowly slide the module into the chassis until the handle catches

on the injector/ejector rail.

6. Raise the injector/ejector handle until the module firmly seats into the backplane

receptacle connectors. The front panel of the NI PXI Express board should be even with

the front panel of the chassis.

Note LEDs on the back side of the PXIe-8370 will light, indicating the

presence of 5 V auxiliary power. Refer to the LED Indicators section for

details.

7. Tighten the bracket-retaining screws on the top and bottom of the front panel to secure

the NI PXI Express board to the chassis.

8. Replace or close any doors or covers to the chassis.

The following figure shows an NI PXI Express board just before installation in the system

controller slot of a National Instruments PXI Express chassis.

PXIe-8370 User Manual | © National Instruments | 9

Figure 5. Example NI PXI Express Board Installation Into a PXI Express Chassis

NI PXIe-1062Q

1. PXI Express/CompactPCI Express Chassis

2. NI PXI Express Board

3. Ejector Handle in Down Position

4. Injector/Ejector Rail

Cabling

MXI-Express x4 is available with copper cables of various lengths. The following table shows

the MXI-Express x4 copper cables available from National Instruments.

Table 3. National Instruments MXI-Express x4 Copper Cables

Cable Length (Meters) Description Part Number

3 m MXI-Express x4 copper cable 779725-03

7 m MXI-Express x4 copper cable 779725-07

Connect the MXI-Express x4 cable to both MXI-Express x4 cards. The cables have no

polarity, so you can connect either end to either card.

Note Do not remove the cable after the system is powered on. Doing so can hang

or cause errors in applications communicating with devices behind MXI-Express x4.

If a cable becomes unplugged, plug it back into the system. (You may need to restart

your computer.)

10 | ni.com | PXIe-8370 User Manual

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