National Instruments CB-2162 User manual

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:
• 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.
Contents
What You Need to Get Started ............................................................... 2
Related Documentation........................................................................... 3
Parts Locator Diagram ............................................................................ 4
Installing Cables...................................................................................... 5
Connecting Signals ................................................................................. 6
Using 1x2 Header Receptacles ........................................................ 9
Using a Ribbon Cable ...................................................................... 10
Making a Wire-Wrap Connection.................................................... 11
Terminating Signals ................................................................................ 12
Minimizing the Effects of Stubs ...................................................... 12
Terminating DIO Channel Signals .................................................. 12
Terminating Control Channel Signals ............................................. 14
Using the NI CB-2162 Prototyping Area................................................ 15
Connecting Power............................................................................ 16
Prototyping Circuits......................................................................... 16
Replacing Components .................................................................... 16
Specifications .......................................................................................... 17
Digital I/O ........................................................................................ 17
Resistors........................................................................................... 17

NI CB-2162 User Guide 2 ni.com
LED ..................................................................................................17
Prototyping Area ..............................................................................17
Traces ...............................................................................................17
Power................................................................................................17
Physical.............................................................................................17
Technical Support Resources ..................................................................19
NI Web Support................................................................................19
Worldwide Support ..........................................................................19
What You Need to Get Started
To set up and use the NI CB-2162, you need the following items:
❑SHC68-C68-D2 cable assembly
❑Compatible NI digital waveform generator/analyzer, installed in a PXI
or CompactPCI chassis
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 series termination.
❑30-gauge wire
❑Wire-wrap tool
❑1x2 header receptacle(s)
❑DC power supply for the prototyping area
❑The documentation included with the digital waveform
generator/analyzer module and the NI-HSDIO driver software

©National Instruments Corporation 3 NI CB-2162 User Guide
Related Documentation
National Instruments digital waveform generator/analyzer modules ship
with several documents designed to familiarize you with different aspects
of the module. The documentation set includes the following pieces:
•NI Digital Waveform Generator/Analyzer 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 and configuring it to generate or acquire your first
samples.
•NI Digital Waveform Generator/Analyzer Help—This online
document provides more in-depth information about the hardware
capabilities of the digital waveform generator/analyzer, theory of
operation discussion, and information on programming flow and
software reference.
• NI digital waveform generator/analyzer module specifications—This
printed document provides specifications for the NI hardware.
These documents also are located in the Start menu at Program Files»
National Instruments»NI-HSDIO»Documentation. Visit
ni.com/manuals for the most current documentation.
You also may have documentation for any application development
environment (ADE) you are using.

NI CB-2162 User Guide 4 ni.com
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
1
J3
J4
4
3
2
9
7
5
8
6

©National Instruments Corporation 5 NI CB-2162 User Guide
Installing Cables
The NI SHC68-C68-D2 cable is designed to connect the NI CB-2162 to the
digital waveform generator/analyzer. Figure 2 shows how to install this
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
NI SHC68-C68-D2 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 and the digital waveform generator/analyzer by
following the installation procedure in the NI Digital Waveform
Generator/Analyzer Getting Started Guide.
1 PXI Chassis with NI Digital Waveform
Generator/Analyzer
2 SHC68-C68-D2 Cable
3 NI CB-2162 Accessory
NI PXI-6551
50 MHz Digital I/O
DIGITAL DATA & CONTROL
PFI 0
ACCESS ACTIVE
CLK
IN
CLK
OUT
13
2
J15
J5
J6
NI PXI-1042

NI CB-2162 User Guide 6 ni.com
Caution Before attaching any cables or accessories, install the digital waveform
generator/analyzer in a PXI/CompactPCI chassis. Refer to the NI Digital Waveform
Generator/Analyzer Getting Started Guide for instructions on installing the module.
2. Attach either end of an NI SHC68-C68-D2 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 NI SHC68-C68-D2 cable assembly to the
DDC connector of the NI CB-2162 and secure them together with the
captive screws on the cable connector.
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.

©National Instruments Corporation 7 NI CB-2162 User Guide
Figure 3 shows the DDC connector pinout of the NI CB-2162.
Figure 3. NI CB-2162 DDC Connector Pinout
Note Refer to the NI Digital Waveform Generator/Analyzer Help for information about
the number of available DIO channels on your device. DIO<20..31> may not be applicable
to your device.
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
DIO31
GND
DIO29
GND
DIO27
GND
DIO25
RESERVED
DIO23
GND
DIO21
GND
DIO19
GND
DIO17
GND
DIO15
GND
DIO13
GND
DIO11
GND
DIO9
GND
DIO7
PFI 1
DIO5
GND
DIO3
PFI 3
DIO1
GND
DDC CLK OUT
GND
DIO30
GND
DIO28
GND
DIO26
GND
DIO24
GND
DIO22
GND
DIO20
GND
DIO18
GND
DIO16
GND
DIO14
RESERVED
DIO12
GND
DIO10
GND
DIO8
GND
DIO6
RESERVED
DIO4
GND
DIO2
PFI 2
DIO0
GND
STROBE
GND

NI CB-2162 User Guide 8 ni.com
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 16x2 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, or STROBE on the NI CB-2162 using a 1x2 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 External sample clock source for pattern
acquisition.
DDC CLK OUT Exported sample clock signal.
PFI <1..3> Programmable functional interface (PFI)
channels 1 through 3.
GND Ground reference for signals.
RESERVED These channels are reserved for system use.
Do not connect signals to these channels.

©National Instruments Corporation 9 NI CB-2162 User Guide
Using 1x2 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 1x2 header receptacle, such as the 3M Monosignal
Socket Connector (3M part number TS0870), to a coaxial cable assembly.
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 1x2 header receptacle connections.
Figure 4. 1x2 Header Receptacle
1 1x2 Header Receptacle 2 Header Pin Pair
2
1
DIO

NI CB-2162 User Guide 10 ni.com
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
J5
J6

©National Instruments Corporation 11 NI CB-2162 User Guide
Making a Wire-Wrap Connection
Make connections from the appropriate 1x1 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
1 Wire-Wrap Tool
2 Stripped Wire
3 Header Pin Receptacle
1
2
3

NI CB-2162 User Guide 12 ni.com
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 Terminating Control Channel Signals section.
Minimizing the Effects of Stubs
Stubs are unterminated tributaries from the original signal path. Stubs
decrease the signal quality of the system by adding reflections to the
transmission channels. To minimize the effect of stubs, termination is
placed at the end of the signal path.
If your signal transmission line ends on the NI CB-2162, you can use the
provided termination socket. If your signal terminates somewhere other
than the NI CB-2162, NI recommends terminating the transmission line
at the final signal destination.
Note Refer to the NI Digital Waveform Generator/Analyzer Help for more information
about proper signal termination.
Terminating DIO Channel Signals
Table 2 shows the relationship between DIO channels and the termination
sockets.
Table 2. DIO Termination Sockets
DIO Channels Termination Socket
DIO<0..7> J13
DIO<8..15> J15
DIO<16..23> J17
DIO<24..31> J19

©National Instruments Corporation 13 NI CB-2162 User Guide
You can use different resistor networks and jumper placements to terminate
the DIO channels in multiple configurations.
Figure 7 shows the J13 connector as an example of this termination
scheme.
Figure 7. Termination Connectivity
Parallel Termination
Figure 8 shows a typical parallel resistor network.
Figure 8. Example of Parallel Resistor Network
You can implement a pull-up or pull-down termination using a parallel
configuration. Insert the 10-pin parallel resistor network into the
appropriate termination socket with the common pin of the resistor network
(pin 1 in Figure 8) connected to pin 1 of the socket, as shown in Figure 7.
With jumpers W<4..7> in place, pin 1 of J13, J15, J17, and J19 are all
pulled to ground. The signal can be alternately pulled up or terminated to
a nonground voltage if you remove the jumpers and apply power to the
jumper pin connected to pin 1 of the socket.
Alternatively, the common pin of the parallel resistor network shown
in Figure 7 can be inserted into pin 10 of the socket shown in Figure 8.
External power can then be applied to the connection point located below
pin 10 of the socket to provide proper termination.
W4
TERMINATION
1
J13
110

NI CB-2162 User Guide 14 ni.com
Thevenin (Dual) Termination
In some applications, you might need to provide a Thevenin (dual)
termination or a pull-up and pull-down configuration. Figure 9 shows a
typical dual-termination resistor network, which can accomplish this task.
Figure 9. Example of Dual-Termination Resistor Network
To implement this configuration, insert the 10-pin resistor network into the
J connector corresponding to the desired DIO channel. Make connections
to ground using a jumper to connect W4, W5, W6, and/or W7 with the
pull-down configuration mentioned previously. This jumper effectively
terminates the signal or pulls the signal to ground by a value provided by
R2 of Figure 9.
You can use the pull-up terminating resistance by connecting pin 10 of
the resistor network to the solder pads connected to pin 10 of the socket,
as shown in Figure 7. Connect external power to this solder point. Refer to
the resistor network manufacturer documentation for information on proper
pin labeling and resistor values.
Terminating Control Channel Signals
The control channel termination sockets are intended to accept standard
through-hole resistors. Refer to Figure 1 for the location of the termination
sockets.
Table 3 lists the termination sockets for control channel termination
resistors.
Table 3. Control Channel Termination
Control Channel Termination Sockets Termination Type
STROBE (W1) J1, J2 Series
DDC CLK OUT (W2) J5, J6 Parallel (pull-down)
110
R2 R2 R2 R2 R2 R2
R1 R1 R1 R1 R1
R2
R1
R2
R1 R1

©National Instruments Corporation 15 NI CB-2162 User Guide
The series termination socket for the STROBE channel is intended for use
when the originating source of the signal being applied to the STROBE
terminal of the DDC connector is near the 1x2 STROBE control channel
pin and has a source impedance of less than 50 Ω. In this case, you might
want to add series resistance to raise the total source impedance to 50 Ωto
minimize reflections. This socket is populated with a 0 Ωresistor before the
NI CB-2162 is shipped.
Note To ensure proper high-speed operation, make sure that the connections from the
DIO pins to your device under test are matched in length.
When inserting a resistor into any of the control channel termination
sockets, first trim the leads of the resistor to an appropriate length and
ensure that the resistor fits securely into the socket.
Using the NI CB-2162 Prototyping Area
The NI CB-2162 prototyping area is designed to aid you in the following
tasks:
• Prototyping and testing circuits—Use the NI CB-2162 in conjunction
with an NI digital waveform generator/analyzer for prototyping,
evaluating, and testing custom circuits and/or components.
• Creating custom interfaces—Use the NI CB-2162 for creating custom
interfaces to other cables or devices. You can use the prototyping area
to mount and interface the integrated circuits (ICs) or connectors
required for your application.
• Prototyping a DUT load board—Use the NI CB-2162 as a simple DUT
interface board or as a prototype of a custom DUT load board.
The prototyping area is labeled in Figure 1. Also labeled in this diagram are
the erasable labeling strips for your notes as you use the prototyping area.
PFI 1 (W3) J7, J8 Parallel (pull-down)
PFI 2 (W3) J9, J10 Parallel (pull-down)
PFI 3 (W3) J11, J12 Parallel (pull-down)
Table 3. Control Channel Termination (Continued)
Control Channel Termination Sockets Termination Type

NI CB-2162 User Guide 16 ni.com
Connecting Power
Caution NI is not liable for any device damage or personal injury resulting from improper
connections that exceed the maximum specifications of the NI CB-2162.
To provide power to the prototyping area, connect VCC from a DC power
supply to J3 (red terminal) and ground to J4 (black terminal). Refer to the
Specifications section for the acceptable voltage ranges.
The green power LED is lit when a positive voltage is applied to the
NI CB-2162. However, if negative voltage is applied, the Power LED does
not light. The power connectors and LED for the prototyping area are
labeled in Figure 1.
Prototyping Circuits
The prototyping area of the NI CB-2162 consists of 304 through-hole
solder pads—208 isolated pads for component mounting and wire
connections, 48 pads connected to VCC,and 48 pads connected to
ground—and space for gluing surface-mount components.
Refer to the Specifications section and to the NI digital waveform
generator/analyzer modules specifications for information on the voltage
limitations on circuits created in the prototyping area.
Replacing Components
The NI CB-2162 does not use replaceable fuses. If you need to replace the
LED, choose a replacement that meets the specifications described in the
Specifications section.

©National Instruments Corporation 17 NI CB-2162 User Guide
Specifications
Digital I/O
DIO channels.......................................... 32, single-ended
Control I/O channels .............................. 5, single-ended
Resistors
Number................................................... 2
LED
Type ....................................................... 5 mm diffused LED, green,
10 mA forward current
Prototyping Area
Dimensions............................................. 4 ×9 cm (1.57 ×3.54 in.)
Solder pads............................................. 208 unconnected, 48 ground,
48 VCC
Traces
Type ....................................................... Matched length to 100 mils
AC impedance........................................ 50 Ω
Power
External DC power supply
Maximum........................................ 12 V
Minimum ........................................ –5 V
Physical
Dimensions............................................. 10 ×14 cm (3.94 ×5.51 in.)
I/O connectors ........................................ 68-pin DDC connector,
two banana-style connectors,
74 header pins,
4 termination sockets
(8 DIO per socket)

NI CB-2162 User Guide 18 ni.com
General Specifications
Installation Category...............................I
Pollution Degree .....................................II
Safety
The NI CB-2162 meets the requirements of the following standards
of safety for electrical equipment for measurement, control, and
laboratory use:
• IEC 61010-1, EN 61010-1
• UL 3111-1, UL 61010B-1
• CAN/CSA C22.2 No. 1010.1
Note For UL and other safety certifications, refer to the product label or to ni.com.
Electromagnetic Compatibility
Emissions................................................EN 55011 Class A at 10 m
FCC Part 15A above 1 GHz
Immunity ................................................EN 61326:1997 + A2:2001,
Table 1
EMC/EMI ...............................................CE, C-Tick, and FCC Part 15
(Class A) Compliant
Note For EMC compliance, install the NI CB-2162 in a shielded container (not included
with the NI CB-2162), and operate the digital waveform generator/analyzer with shielded
cabling.
CE Compliance
This product meets the essential requirements of applicable European
Directives, as amended for CE marking, as follows:
Low-Voltage Directive (safety)..............73/23/EEC
Electromagnetic Compatibility
Directive (EMC) .....................................89/336/EEC
Note Refer to the Declaration of Conformity (DoC) for this product for any additional
regulatory compliance information. To obtain the DoC for this product, click Declarations
of Conformity Information at ni.com/hardref.nsf/.

©National Instruments Corporation 19 NI CB-2162 User Guide
Technical Support Resources
NI Web Support
National Instruments Web support is your first stop for help in solving
installation, configuration, and application problems and questions. Online
problem-solving and diagnostic resources include frequently asked
questions, knowledge bases, product-specific troubleshooting wizards,
manuals, drivers, software updates, and more. Web support is available
through the Technical Support section of ni.com.
Worldwide Support
National Instruments has offices located around the world to help address
your support needs. You can access our branch office Web sites from the
Worldwide Offices section of ni.com. Branch office Web sites provide
up-to-date contact information, support phone numbers, e-mail addresses,
and current events.
National Instruments has offices located around the world to help address
your support needs. You can access our branch office Web sites from the
Worldwide Offices section of ni.com. Branch office Web sites provide
up-to-date contact information, support phone numbers, email addresses,
and current events.
If you have searched the technical support resources on our Web site
and still cannot find the answers you need, contact your local office or
National Instruments corporate. For telephone support in the United States,
dial 512 795 8248. For telephone support outside the United States, contact
your local branch office:
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