National Instruments NI CB-2162 Bedienungsanleitung

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USER GUIDE

NI CB-2162

Single-Ended Digital I/O Accessory

The NI CB-2162 is a connector block and prototyping board for National Instruments digital

waveform generator/analyzer modules. The NI CB-2162 provides an easy way to complete the

following tasks:

• Terminate digital I/O (DIO) and control channels

• Connect to other devices for testing and debugging

• Develop and interface to prototype circuits

• Probe DIO and control channels

This guide explains how to set up and use the NI CB-2162 single-ended DIO accessory.

Caution To ensure the specified EMC performance of the device connected to the

NI CB-2162, this product must be installed in a shielded enclosure and used only

with shielded cables and accessories. Do not use unshielded cables or accessories

unless they are installed in a shielded enclosure with properly designed and shielded

input/output ports and connected to the product using a shielded cable. If unshielded

cables or accessories are not properly installed and shielded, the EMC specifications

for the product are no longer guaranteed. Refer to Mounting the NI CB-2162 in an

Enclosure for installation guidance.

Contents

What You Need to Get Started ................................................................................................. 2

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

Parts Locator Diagram.............................................................................................................. 3

Installing Cables ....................................................................................................................... 4

Connecting Signals ................................................................................................................... 5

Terminating Signals.................................................................................................................. 9

Using the NI CB-2162 Prototyping Area ................................................................................. 13

Mounting the NI CB-2162 in an Enclosure.............................................................................. 14

Specifications............................................................................................................................ 17

Where to Go for Support .......................................................................................................... 19

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2|ni.com |NI CB-2162 User Guide

What You Need to Get Started

To set up and use the NI CB-2162, you need the following items:

NI SHC68-C68-D2 or NI C68-C68-D4 cable assembly

Compatible NI digital waveform generator/analyzer module installed in a PXI chassis,

compact PCI chassis, or desktop PC

CA-1000 (NI part number 777664-01), rack-mount side panels (NI part number

777665-01), and an NI CB-2162 CA-1000 mounting kit for mounting the NI CB-2162 in

an enclosure

You also may need the following optional items:

Resistors and 10-pin single-inline packaged resistor networks for pull-up/pull-down and

series termination

The NI CB-2162 ships populated with a 0 Ωresistor. A 50 Ωresistor also is included for

optional STROBE/PFI 5 series termination.

30-gauge wire

Wire-wrap tool

1 × 2 header receptacle(s)

DC power supply for the prototyping area

The documentation included with the digital waveform generator/analyzer module and the

driver software included with your NI device

Related Documentation

National Instruments digital waveform generator/analyzer modules ship with several documents

designed to familiarize you with different aspects of the module. The titles and location of the

documents vary based on the instrument driver that supports the NI device, but you should have

the following types of documentation:

• Getting Started Guide—This printed document should be the first thing you read.

Its purpose is to guide you through setting up the digital waveform generator/analyzer

module and configuring it to generate or acquire your first samples.

• Help—This online document provides more in-depth information about the hardware

capabilities of the digital waveform generator/analyzer module, theory of operation

discussion, and information on programming flow and software reference.

• Specifications—This printed document provides specifications for the NI hardware.

Visit ni.com/manuals for the most current documentation.

You also may have documentation for any application development environment (ADE) you are

using.

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NI CB-2162 User Guide |© National Instruments |3

Parts Locator Diagram

Refer to Figure 1 to locate connectors and components on the NI CB-2162.

Figure 1. NI CB-2162 Parts Locator Diagram

1 68-Pin Digital Data & Control (DDC) Connector

2 Termination Sockets

3 Control and Ground Header Pairs

4 Prototyping Area Power Connectors

5 Prototyping Area Power LED

6 Prototyping Area Power and Ground Solder Pads

7 Prototyping Area

8 Labeling Strips

9 DIO and Ground Header Pairs

J15

4/DDC

CLKOUT 5/

STROBE

F6 F5 F4 F3F2 F1

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4|ni.com |NI CB-2162 User Guide

Installing Cables

A cable connects the NI CB-2162 to the digital waveform generator/analyzer. Figure 2 shows

how to install a cable.

Figure 2. Connecting a 68-Pin Digital Waveform Generator/Analyzer to the CB-2162

Refer to Figure 2 as you complete the following steps to install the supported cable:

Caution Before connecting the cable, disconnect power from the module,

accessory, and any other connected hardware to prevent damage to the hardware and

personal injury. NI is not liable for damage resulting from improper connections.

1. Install NI-HSDIO or NI-DAQmx and the digital waveform generator/analyzer by

following the installation procedure in the Getting Started Guide that shipped with your

device.

Caution Before attaching any cables or accessories, install the digital waveform

generator/analyzer. Refer to the Getting Started Guide that shipped with your device

for instructions on installing the module.

2. Attach either end of the cable assembly to the DDC connector of the digital waveform

generator/analyzer module and secure the cable with the captive screws on the cable

connector.

3. Attach the other end of the cable assembly to the DDC connector of the NI CB-2162 and

secure them together with the captive screws on the cable connector.

1 PXI Chassis with NI Digital Waveform

Generator/Analyzer

2Cable

3 NI CB-2162 Accessory

NI PXIe-6536

25 MHz Digital I/O

DIGITAL DATA & CONTROL

ACCESS ACTIVE

NI PXI-1042

J15

4/DDC

CLKOUT

STROBE

F6 F5 F4 F3 F2 F1

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NI CB-2162 User Guide |© National Instruments |5

Connecting Signals

Each DIO, PFI, and clock channel of the digital waveform generator/analyzer connects to a

corresponding pin on the NI CB-2162.

Refer to Figure 1 for the location of these pins on the NI CB-2162.

Caution Before powering down the digital waveform generator/analyzer module,

remove power from the prototyping area of the NI CB-2162. NI is not liable for any

damage resulting from improper signal connections.

Figure 3 shows the DDC connector pinout of the NI CB-2162.

Figure 3. NI CB-2162 DDC Connector Pinout

DIO 31

GND

DIO 29

GND

DIO 27

GND

DIO 25

RESERVED

DIO 23

GND

DIO 21

GND

DIO 19

GND

DIO 17

GND

DIO 15

GND

DIO 13

GND

DIO 11

GND

DIO 9

GND

DIO 7

PFI 1

DIO 5

GND

DIO 3

PFI 3

DIO 1

GND

DDC CLK OUT/PFI_4

GND

DIO 30

GND

DIO 28

GND

DIO 26

GND

DIO 24

GND

DIO 22

GND

DIO 20

GND

DIO18

GND

DIO 16

GND

DIO 14

RESERVED/PFI_0

DIO 12

GND

DIO 10

GND

DIO 8

GND

DIO 6

RESERVED

DIO 4

GND

DIO 2

PFI 2

DIO 0

GND

STROBE/PFI_5

GND

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6|ni.com |NI CB-2162 User Guide

Note Refer to the help file for your device for information about the number of

available DIO channels on your device. DIO <20..31> or PFI_0 may not be

applicable to your device. The function of DDC CLK OUT/PFI_4 and

STROBE/PFI_5 may be unique to your device.

Table 1 describes the DDC signals shown in Figure 3.

The NI CB-2162 provides connectivity to up to 32 of the single-ended DIO channels of an NI

digital waveform generator/analyzer. The 32 DIO channels are divided into two bundles of

16 × 2 header pins. Each bundle is grouped by signal and ground pairs. The ground pins provide

ground return paths for the DIO channels.

You can make connections to the DIO channels, the PFI channels, DDC CLK OUT/PFI_4, or

STROBE/PFI_5 on the NI CB-2162 using a 1 × 2 header receptacle, ribbon cable, a wire-wrap

technique, or by soldering directly to the pins. Examples of how to make these connections are

provided in the following sections.

Caution Connections that exceed any of the maximum ratings for the NI CB-2162

or the NI digital waveform generator/analyzer module can damage the module and

the computer. Maximum input ratings are provided in the Specifications section and

in the specifications document that shipped with the digital waveform

generator/analyzer. NI is not liable for any damage resulting from such signal

connections.

Table 1. DDC Connector Pinout Descriptions

DDC Pin Signal Description

DIO <0..31> Bidirectional digital data channels 0 through 31.

STROBE/PFI_5 External sample clock source for pattern acquisition or

general-purpose PFI*.

DDC CLK OUT/PFI_4 Exported sample clock signal or general-purpose PFI.

PFI <0..3> Programmable functional interface (PFI) channels 0 through 3.

GND Ground reference for signals.

RESERVED These channels are reserved for system use. Do not connect

signals to these channels.

* Refer to your device documentation for support.

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NI CB-2162 User Guide |© National Instruments |7

Using 1 ×2 Header Receptacles

Each signal and ground header pair is labeled on the NI CB-2162 and in Figure 1. These header

pairs are arranged so that you can make quick connections using a 1 × 2 header receptacle to a

coaxial cable assembly.

Note Header receptacle assemblies are not included with the NI CB-2162, but you

can create custom assemblies by purchasing parts from vendors such as 3M.

Connectivity is made by inserting the receptacle onto the appropriate header pair. Refer to the

receptacle documentation to assure that proper connections are made to signal and ground.

Figure 4 shows how to make 1 × 2 header receptacle connections.

Figure 4. 1 × 2 Header Receptacle

1 1 × 2 Header Receptacle 2 Header Pin Pair

DIO

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8|ni.com |NI CB-2162 User Guide

Using a Ribbon Cable

The header pairs on the NI CB-2162 are available for single wire probing. You also can use

32-pin ribbon cables to easily connect a large number of channels to other devices. Cable type

and quality can dramatically affect how well the signal integrity is maintained. NI recommends

using short twisted-pair ribbon cables.

Refer to the device or cable manufacturer for additional information on proper connectivity to

the NI CB-2162 signal and ground connections.

Figure 5 shows how to connect a ribbon cable to the accessory.

Figure 5. Using a Ribbon Cable with the NI CB-2162

J15

4/DDC

CLKOUT 5/

STROBE

F6 F5 F4 F3F2 F1

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NI CB-2162 User Guide |© National Instruments |9

Making a Wire-Wrap Connection

Make connections from the appropriate 1 × 1 header with a standard wire-wrap tool and

30-gauge or similar wire. Strip the wire and insert it into the receptacle end of the wire-wrap tool.

Place the wire-wrap tool over the appropriate header pair pin, and twist the tool around the

header post. You then can make connections to the device under test (DUT) as defined by the

device manufacturer. Connect the DIO channel and ground header pins for each channel being

used.

Figure 6 provides an illustration for making a wire-wrap connection.

Figure 6. Wire-Wrap Connections

Terminating Signals

Termination of high-speed digital signals is necessary to prevent signal reflections and to force

signal channels to a known state when no signal is present. Sockets for terminating resistors are

connected to all DIO and control channels on the NI CB-2162. These sockets are labeled in

Figure 1.

Note Proper termination needs are application-specific. For some special

considerations for choosing resistor values, refer to the TerminatingControl Channel

Signals section.

1 Wire-Wrap Tool

2 Stripped Wire

3 Header Pin Receptacle

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