National Instruments NI 9469 Manuel utilisateur

GETTING STARTED GUIDE

NI 9469

Synchronization Module

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This document explains how to connect to the NI 9469.

Note Before you begin, complete the software and

hardware installation procedures in your chassis

documentation.

Note The guidelines in this document are specific to

the NI 9469. The other components in the system might

not meet the same safety ratings. Refer to the

documentation for each component in the system to

determine the safety and EMC ratings for the entire

system.

Safety Guidelines

Operate the NI 9469 only as described in this document.

Hot Surface This icon denotes that the component

may be hot. Touching this component may result in

bodily injury.

Caution Do not operate the NI 9469 in a manner not

specified in this document. Product misuse can result in

a hazard. You can compromise the safety protection

built into the product if the product is damaged in any

2| ni.com | NI 9469 Getting Started Guide

way. If the product is damaged, return it to NI for

repair.

Safety Guidelines for Hazardous Locations

The NI 9469 is suitable for use in Class I, Division 2, Groups A,

B, C, D, T4 hazardous locations; Class I, Zone 2, AEx nA IIC T4

and Ex nA IIC T4 hazardous locations; and nonhazardous

locations only. Follow these guidelines if you are installing the

NI 9469 in a potentially explosive environment. Not following

these guidelines may result in serious injury or death.

Caution Do not disconnect I/O-side wires or

connectors unless power has been switched off or the

area is known to be nonhazardous.

Caution Do not remove modules unless power has

been switched off or the area is known to be

nonhazardous.

Caution Substitution of components may impair

suitability for Class I, Division 2.

Caution For Division 2 and Zone 2 applications,

install the system in an enclosure rated to at least IP54

as defined by IEC/EN 60079-15.

NI 9469 Getting Started Guide | © National Instruments | 3

Special Conditions for Hazardous Locations Use in

Europe and Internationally

The NI 9469 has been evaluated as Ex nA IIC T4 Gc equipment

under DEMKO Certificate No. 07 ATEX 0626664X and is

IECEx 14.0089X certified. Each NI 9469 is marked II 3G and

is suitable for use in Zone 2 hazardous locations, in ambient

temperatures of -40 °C ≤ Ta ≤ -70 °C. If you are using the

NI 9469 in Gas Group IIC hazardous locations, you must use the

device in an NI chassis that has been evaluated as Ex nC IIC T4,

Ex IIC T4, Ex nA IIC T4, or Ex nL IIC T4 equipment.

Caution You must make sure that transient

disturbances do not exceed 140% of the rated voltage.

Caution The system shall only be used in an area of

not more than Pollution Degree 2, as defined in

IEC 60664-1.

Caution The system shall be mounted in an

ATEX/IECEx-certified enclosure with a minimum

ingress protection rating of at least IP54 as defined in

IEC/EN 60079-15.

4| ni.com | NI 9469 Getting Started Guide

Caution The enclosure must have a door or cover

accessible only by the use of a tool.

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 changes or modifications to the product not

expressly approved by National Instruments could void your

authority to operate it under your local regulatory rules.

NI 9469 Getting Started Guide | © National Instruments | 5

Caution To ensure the specified EMC performance,

operate this product only with shielded cables and

accessories.

Special Conditions for Marine Applications

Some products are Lloyd’s Register (LR) Type Approved for

marine (shipboard) applications. To verify Lloyd’s Register

certification for a product, visit ni.com/certification and search

for the LR certificate, or look for the Lloyd’s Register mark on

the product.

Caution In order to meet the EMC requirements for

marine applications, install the product in a shielded

enclosure with shielded and/or filtered power and

input/output ports. In addition, take precautions when

designing, selecting, and installing measurement probes

and cables to ensure that the desired EMC performance

is attained.

6| ni.com | NI 9469 Getting Started Guide

NI 9469 Overview

The NI 9469 is a synchronization module for C Series platforms.

It has a configurable multi-port interface that enables distribution

of triggers and clocks from a host chassis, and an onboard DDS

and PLL for clock generation and synchronization capabilities.

Connecting the NI 9469

The NI 9469 has three RJ45 connectors on the front panel labeled

Port 0, 1, and 2. These connectors use standard straight through

CAT 5e Ethernet cabling to provide connection to other NI 9469

modules only . Each port is software configurable to drive or

receive four differential signals through the cable, which are

referred to as Line 0 to 3. Each port can carry either four triggers,

or three triggers and one clock, in which Line 3 is dedicated to

carry the clock.

NI 9469 Getting Started Guide | © National Instruments | 7

Routing the NI 9469

The NI 9469 features a configurable crosspoint switch. You can

control the routing of signals and the onboard clock generator

between each front port and the trigger lines in the backplane.

However, the crosspoint switch is not a full routing matrix. You

can connect only the same Line or Trig number. For example,

Line 0 to Trig 0, but not Line 0 to Trig 2. However, you can route

clock signals on only Line 3 or Trig 3. The following figure

details the crosspoint switch's routing capabilities.

Note You can set only eight of the 12 total port lines

as outputs due to power constraints.

8| ni.com | NI 9469 Getting Started Guide

Figure 1. Routing Capabilities of the Crosspoint Switch

Line 0

Line 1

Line 2

Line 3

Line 0

Line 1

Line 2

Line 3

Line 0

Line 1

Line 2

Line 3

Trig 0

Trig 1

Trig 2

Trig 3

Line 0

Line 1

Line 2

Line 3

Line 0

Line 1

Line 2

Line 3

Line 0

Line 1

Line 2

Line 3

Trig 0

Trig 1

Trig 2

Trig 3

Clk Gen

Sources

Port 0

Port 1Port 2

Backplane

Onboard

Destinations

Port 0 Port 1 Port 2 Backplane

xxx

x x

NI 9469 Getting Started Guide | © National Instruments | 9

Note The preceding figure details hardware routing

capability only. Software imposed limitations may

prevent certain routing or input/output functions from

being realized. For more information, refer to the

documentation for your specific software platform.

NI 9469 Application

In a basic application, a single NI 9469 module is inserted into

each host C Series chassis. One module is set as master, the

remainder as slaves, and all modules are connected with a tree

topology. Figure 2 shows a tree topology example. More

advanced and customizable options create a flexible topological

network of NI 9469 modules. Refer to the Topologies section for

examples of various topological networks.

Based on user needs, you may desire certain topologies over

others due to application or timing requirements. Because signals

are physically propagated over cabling, the module cannot

compensate for inherent cable delays and skew. For example, if

all slave modules must receive triggers at the same time with

minimal skew and delay, a star topology with short length-

10 | ni.com | NI 9469 Getting Started Guide

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