National Instruments NI 9467 Bedienungsanleitung

NI-9467 Getting

Started

2022-07-11

Contents

Before You Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Safety Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Safety Guidelines for Hazardous Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Electromagnetic Compatibility Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Special Conditions for Marine Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

NI 9467 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Start-Up Behavior. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Status LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Connecting the NI 9467. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Installing the Antenna. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Maximum Cable Length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Sleep Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

NI-9467 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

General Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

GPS Antenna Connector Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Power Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Physical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Environmental. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Shock and Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Safety and Hazardous Locations Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Electromagnetic Compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

CE Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Product Certifications and Declarations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Environmental Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

电子信息产品污染控制管理办法（中国 RoHS）. . . . . . . . . . . . . . . . . . . . . . . . . . . 12

NI Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

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NI-9467 Getting Started

Before You Begin

Read the NI-9467 Safety, Environmental, and Regulatory Information and

complete the soware and hardware installation procedures in your chassis

documentation.

Safety Guidelines

Caution Observe all instructions and cautions in the user documentation.

Using the product in a manner not specified can damage the product and

compromise the built-in safety protection.

Attention Suivez toutes les instructions et respectez toutes les mises

en garde de la documentation d'utilisation. L'utilisation du produit de

toute autre façon que celle spécifiée risque de l'endommager et de

compromettre la protection de sécurité intégrée.

Safety Guidelines for Hazardous Locations

The NI-9467 is suitable for use in hazardous locations; , and hazardous locations;

and nonhazardous locations only. Follow these guidelines if you are installing the

NI-9467 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 o or the area is known to be nonhazardous.

Caution Do not remove modules unless power has been switched o or

the area is known to be nonhazardous.

NI-9467 Getting Started

Caution Substitution of components may impair suitability for Class I,

Division 2, or Zone 2.

Caution The system must be installed in an enclosure certified for the

intended hazardous (classified) location, having a tool secured cover/door,

where a minimum protection of at least IP54 is provided.

Special Conditions for Hazardous Locations Use in Europe and

Internationally

The NI-9467 has been evaluated as equipment under DEMKO ATEX and is IECEx

certified. Each NI-9467 is marked 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-9467

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 Transient protection shall be provided that is set at a level not

exceeding 140% of the peak rated voltage value of 85 V at the supply

terminals to the equipment.

Caution The system shall only be used in an area of not more than

Pollution Degree 2, as defined in IEC/EN 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.

Caution The enclosure must have a door or cover accessible only by the

use of a tool.

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NI-9467 Getting Started

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.

Caution To ensure the specified EMC performance, operate this product

only with shielded cables and accessories.

Special Conditions for Marine Applications

Some products are approved for marine (shipboard) applications. To verify marine

approval certification for a product, visit ni.com/product-certifications, search by

model number, and click the appropriate link.

Notice 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.

NI-9467 Getting Started

NI 9467 Overview

The NI-9467 is a stationary GPS timing module for C Series platforms. It provides

accurate timing and geographic location information to the C Series host, which

enables synchronization of C Series systems.

Start-Up Behavior

At start-up, the NI-9467 automatically begins determining its location through a

process known as self-survey. During the self-survey, the module computes a

location fix every second and averages the locations at the end to obtain a more

accurate location. Aer the self-survey, the NI 9467 no longer computes new

location fixes; it uses its known location and satellite signals to generate accurate

timing signals.

Like all GPS receivers, the NI-9467 requires GPS satellite ephemeris and almanac

data to compute accurate time and location. The ephemeris is detailed orbital

information about each satellite (where each satellite is expected to be at a given

time). The almanac data describes the general health of each satellite (for example,

the receiver must not use signals from satellites marked as unhealthy) and contains

coarse orbit information. The GPS satellites broadcast the ephemeris and almanac

data every 30 seconds. Therefore, it usually takes approximately 30 seconds for it to

receive the ephemeris and almanac data and start computing location and timing

fixes.

Status LED

The NI-9467 has a front panel LED to indicate status. The following table describes

the meaning of each LED pattern.

Conditions LED State

Normal operation Solid green

Performing survey Blinking green

Not enough or no satellites Blinking yellow

Antenna error (no antenna or over-current) Solid yellow

Unconfigured O

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NI-9467 Getting Started

Note Although the module may not detect the presence of very low-

power GPS antennas, it can still function correctly. Note that the LED and

soware may report antenna error under these conditions, and if the

current consumed is close to the detection threshold the LED may flicker.

Refer to the Specifications section for more details.

Connecting the NI 9467

The NI-9467 has one SMA female connector on its front panel for a GPS active

antenna. The connector provides a DC voltage to power the antenna and also serves

as input for the GPS RF signal.

Installing the Antenna

Caution National Instruments recommends using a lightning arrester in

line with the GPS antenna installation to protect the NI-9467 and the C

Series system from possible damage and operators from injury in the

event of lightning.

The embedded GPS receiver in the NI-9467 requires signals from several satellites to

compute accurate timing and location. The more satellites available to the receiver,

the more accurately it can determine time and location. Therefore, the antenna

location should be such that it receives signals from the greatest number of

satellites possible. As the number of satellites visible to the antenna decreases, the

synchronization performance may also decrease. Choose the antenna location so

that the antenna has a clear view of the sky. There is no strict definition for a clear

view of the sky, but a suitable guideline is that the GPS antenna should have a

straight line of sight to the sky in all directions (360°) down to an imaginary line

making a 30° angle with the ground. Locations far from trees and tall buildings that

could block or reflect GPS satellite signals are best.

Maximum Cable Length

Maximum cable length depends on the GPS antenna gain and the cable’s loss per

unit of distance. National Instruments recommends a GPS signal strength of

NI-9467 Getting Started

between -135 dBm and -120 dBm at the NI-9467 SMA input. GPS signal strength on

the Earth’s surface is typically -130 dBm. Targeting a signal strength of -125 dBm at

the SMA input, you can compute the maximum cable length as:

■Max_cable_loss = -130 dBm + antenna_gain - (-125 dBm)

■Max_cable_length = Max_cable_loss / (loss_per_unit_of_distance)

For example, if you use an active antenna with gain of 28 dB and RG-58 cable, which

has a rated loss at 1.5 GHz of about 0.8 dB/m (24.5 dB/100 ), the maximum cable

length you could use is:

■Max_cable_loss = -130 dBm + 28 dB - (-125 dBm) = 23 dB

■Max_cable_length = 23 dB / (0.8 dB/m) ≈ 29 m

Sleep Mode

This module supports a low-power sleep mode. Support for sleep mode at the

system level depends on the chassis the module is plugged into. Refer to the chassis

manual for information about support for sleep mode. If the chassis supports sleep

mode, refer to the soware help for information about enabling sleep mode. Visit

ni.com/info and enter cseriesdoc for information about C Series documentation.

Typically, when a system is in sleep mode, you cannot communicate with the

modules. In sleep mode, the system consumes minimal power and may dissipate

less heat than it does in normal mode. Refer to the Specifications section for more

information about power consumption and thermal dissipation.

Notice that when the NI-9467 is in sleep mode, the GPS receiver is not powered and

stops tracking satellites. When the module exits sleep mode and power to the GPS

receiver is restored, the module goes through the normal power-up process, which

includes the ephemeris/almanac data acquisition and self-survey process.

Therefore, it can take approximately 30 seconds before usable timing and location

signaling can be generated. Refer to Start-Up Behavior for more information.

NI-9467 Specifications

The following specifications are typical for the range -40 °C to 70 °C unless otherwise

noted.

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NI-9467 Getting Started

General Characteristics

Signal type L1 frequency; GPS C/A code

Datum WGS-84

RF GPS signal frequency 1575.42 MHz

Recommended signal strength at SMA[1] -135 dBm to -120 dBm

Max RF power at input 3 dBm

Input impedance 50 Ω, nominal

MTBF 2,234,702 h at 25 °C; Bellcore Issue 2, Method 1, Case 3,

Limited Part Stress Method

PPS accuracy[2] ±100 ns, > 99% typical

1 Higher signal strength might saturate the receiver and degrade performance.

2 For the best timing accuracy performance, ensure that the GPS antenna has a clear

view of the sky. Refer to the Antenna Installation section for more details.

GPS Antenna Connector Characteristics

GPS antenna connector type SMA female

DC voltage output for active antenna +5 V ± 10%

Max. current output 30 mA

Minimum current for antenna presence detection 6 mA typical, 9.5 mA max

Over-voltage protection ± 30 VDC

Power Requirements

Power consumption from chassis

Active mode 150 mA maximum

NI-9467 Getting Started

Sleep mode 1 mA

Thermal dissipation (at 70 °C)

Active mode 550 mW maximum

Sleep mode 5 mW

Physical Characteristics

Dimensions Visit ni.com/dimensions and search by module number.

Weight 141 g (4.5 oz)

Environmental

Refer to the manual for the chassis you are using for more information about

meeting these specifications.

Operating temperature (IEC 60068-2-1, IEC 60068-2-2) -40 °C to 70 °C

Storage temperature (IEC 60068-2-1, IEC 60068-2-2) -40 °C to 85 °C

Ingress protection IP40

Operating humidity (IEC 60068-2-30) 10% RH to 90% RH, noncondensing

Storage humidity (IEC 60068-2-30) 5% RH to 95% RH, noncondensing

Pollution Degree 2

Maximum altitude 5,000 m

Indoor use only.

Shock and Vibration

To meet these specifications, you must panel mount the system.

Operating vibration

Random 5 g RMS, 10 Hz to 500 Hz

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NI-9467 Getting Started

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