National Instruments MXI PCIe-8371 Bedienungsanleitung

PCIe-8372

USER MANUAL

PCIe-8371

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 PCIe-8371.

Contents

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

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

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

PCIe-8371 Overview.........................................................................................................3

PCIe-8371 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

PCIe-8371 (199994x-01L) LEDs............................................................................................12

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

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

Configuring Your System................................................................................................12

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

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

MXI-3 and MXI-4 to MXI-Express x4 Upgrade............................................................ 13

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 | PCIe-8371 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.

PCIe-8371 Overview

With the PCIe-8371, you can control PXI Express and CompactPCI Express systems from a

x4 or higher PCI Express slot in your desktop or server PC.

The PCIe-8371 includes one x4 PCI Express link that provides up to 798 MB/s of sustained

throughput when cabled to a single PXI Express chassis. The PXIe-PCIe-8371 kit consists of

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

switches may serve a reserved purpose.

PCIe-8371 User Manual | © National Instruments | 3

an PCIe-8371 in the PC connected via a x4 MXI-Express cable to a PXI Express module in

slot 1 of a PXI Express chassis.

PCIe-8371 Block Diagram

Figure 1. PCIe-8371 (199994x-01L) Block Diagram

BIOS Compat

OFF ON

Mode

PCIe

Switch

PCIe Gen 1 x4

Cabled

PCI Express x4

Copper

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 | PCIe-8371 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.

PCIe-8371 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 | PCIe-8371 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.

PCIe-8371 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 PCIe-8371/8372

Complete the following steps to install the PCIe-8371/8372 in your computer.

1. Power off your computer.

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

your computer should remain off until you finish installing all hardware as

instructed.

2. Remove the top cover or access port to the PCI Express expansion slots.

3. Touch the metal part of the power supply case inside the computer to discharge any static

electricity that might be on your clothes or body.

4. Unplug the computer and wait 30 seconds to allow the energy stored in the computer’s

power supply to fully dissipate.

5. Select any available PCI Express expansion slot (x4 or wider).

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

to x1 width, which will reduce throughput performance. This is rare in modern

systems.

8| ni.com | PCIe-8371 User Manual

Note The BIOS or motherboard may not support the PCIe-8371/8372 in a slot

intended for a graphics card.

Note Not all PCI Express expansion slots that have x4 or wider physical

connectors are electrically capable of x4 PCI Express operation. Check with the

motherboard manufacturer to verify that the slot is capable of x4 PCI Express

operation.

6. Locate the metal bracket that covers the cut-out in the back panel of the computer for the

slot you have selected. Remove and save the bracket-retaining screw and the bracket

cover.

7. Line up the PCIe-8371/8372 with the slot on the back panel. Slowly lower the

PCIe-8371/8372 until its card-edge connector is resting on the expansion slot receptacle.

Using slow, evenly distributed pressure, press the PCIe-8371/8372 straight down until it

seats in the expansion slot, as shown in the figure below.

8. Secure the PCIe-8371/8372 to the back panel rail using a bracket retaining screw.

9. Replace the computer cover.

10. Plug the computer back in.

Figure 5. Installing the PCIe-8371/8372

1. PCIe-8371/8372

2. PCI Express x4 Card-Edge Connector

3. PCI Express Slot (x4 or wider)

PCIe-8371 User Manual | © National Instruments | 9

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