Omega Engineering OMB-DBK-34A User manual

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User’s Guide
OMB-DBK Option Cards and Modules
Part 1 of 2, Through OMB-DBK-34A
OMB-457-0911 rev 8.1

Servicing North America:
U.S.A.: One Omega Drive, P.O. Box 4047
ISO 9001 Certified Stamford, CT 06907-0047
TEL: [phone] FAX: [phone]
e-mail: [email protected]
Canada: 976 Bergar
Laval (Quebec) H7L 5A1, Canada
TEL: [phone] FAX: [phone]
e-mail: [email protected]
For immediate technical or application assistance:
U.S.A. and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA®
Customer Service: 1-800-622-2378 / 1-800-622-BEST®
Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN®
Mexico: En Espan˜ol: [phone]-7803 e-mail: [email protected]
FAX: [phone] [email protected]
Servicing Europe:
Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands
TEL: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [email protected]
Czech Republic: Frystatska 184, 733 01 Karviná, Czech Republic
TEL: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [email protected]
France: 11, rue Jacques Cartier, 78280 Guyancourt, France
TEL: [phone] FAX: [phone]
Toll Free in France: 0800 466 342
e-mail: [email protected]
Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
TEL: [phone] FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [email protected]
United Kingdom: One Omega Drive, River Bend Technology Centre
ISO 9002 Certified Northbank, Irlam, Manchester
M44 5BD United Kingdom
TEL: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-488
e-mail: [email protected]
OMEGAnet®Online Service Internet e-mail
omega.com [email protected]
It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI
regulations that apply. OMEGA is constantly pursuing certification of its products to the European New
Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.
The information contained in this document is believed to be correct, but OMEGA accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

Warnings, Cautions, Notes, and Tips
Refer all service to qualified personnel. This symbol warns of possible personal injury or equipment damage under
noted conditions. Follow all safety standards of professional practice and the recommendations in this manual. Using
this equipment in ways other than described in this manual can present serious safety hazards or cause equipment
damage.
This warning symbol is used in this manual or on the equipment to warn of possible injury or death from electrical
shock under noted conditions.
This ESD caution symbol urges proper handling of equipment or components sensitive to damage from electrostatic
discharge. Proper handling guidelines include the use of grounded anti-static mats and wrist straps, ESD-protective
bags and cartons, and related procedures.
This symbol indicates the message is important, but is not of a Warning or Caution category. These notes can be of
great benefit to the user, and should be read.
In this manual, the book symbol always precedes the words “Reference Note.” This type of note identifies the location
of additional information that may prove helpful. References may be made to other chapters or other documentation.
Tips provide advice that may save time during a procedure, or help to clarify an issue. Tips may include additional
reference.
Specifications and Calibration
Specifications are subject to change without notice. Significant changes will be addressed in an addendum or revision to
the manual. As applicable, we calibrate our hardware to published specifications. Periodic hardware calibration is not
covered under the warranty and must be performed by qualified personnel as specified in this manual. Improper
calibration procedures may void the warranty.
iii

iv
Your order was carefully inspected prior to shipment. When you receive your order, carefully
unpack all items from the shipping carton and check for physical signs of damage that may have
occurred during shipment. Promptly report any damage to the shipping agent and your sales
representative. Retain all shipping materials in case the unit needs returned to the factory.
CAUTION
Using this equipment in ways other than described in this manual can cause
personal injury or equipment damage. Before setting up and using your
equipment, you should read all documentation that covers your system.
Pay special attention to Warnings and Cautions.
Note: During software installation, Adobe®PDF versions of user manuals will automatically
install onto your hard drive as a part of product support. The default location is in the
Programs group, which can be accessed from the Windows Desktop. Initial
navigation is as follows:
Start [Desktop “Start” pull-down menu]
⇒Programs
⇒Omega DaqX Software
You can also access the PDF documents directly from the data acquisition CD by using
the <View PDFs> button located on the opening screen.
Refer to the PDF documentation for details regarding both hardware and software.
A copy of the Adobe Acrobat Reader®is included on your CD. The Reader provides
a means of reading and printing the PDF documents. Note that hardcopy versions of
the manuals can be ordered from the factory.

© 1998 through 2005 917594 Part 1 of 2 Printed in the United States of America
Part 1 of 2
DBK Options
General Information through DBK34A

ii

DBK Option Cards & Modules User’s Manual 917094 v
Manual Layout
This user’s manual includes several chapters and independent DBK sections. It also includes DBK
Basics, which is a stand alone document.
DBK Basics – Explains what DBKs are and uses tables to identify the various types of DBKs. The
document module includes: tips for setting up a data acquisition system, how to determine system power
requirements, and various power options.
Chapters*
1– Signal Management. Discusses signal management and signal conditioning, and CE compliance
information.
2– System Connections and Pinouts. Provides instructions for connecting a DBK option to a Daq
or LogBook device. Pinouts are included for the P1, P2, and P3 DB37 connectors, as well as the
100-pin P4 connector used by /2000 Series Devices.
3 – DBK Set Up in DaqView. Provides instruction for setting up analog and digital DBKs in
DaqView’s Hardware Configuration screen.
4– DBK Set Up in LogView. Provides instruction for setting up analog and digital DBKs in
LogView’s Hardware Configuration window.
5– Troubleshooting.Explains solutions to common noise, wiring, and configuration problems.
Dimensional Drawings
DBK Cards and Modules** – Independent DBK documentation is provided in alphanumeric order on a
DBK by DBK basis. Refer to the Table of Contents for a complete list.
Documentation for discontinued DBKs [listed at the end of the Table of Contents] is not included in the
DBK Options Manual, but can be downloaded or read from our website.
Note: During software installation, Adobe®PDF versions of user manuals will automatically install onto your
hard drive as a part of product support. The default location is in the Programs group, which can be
accessed from the Windows Desktop. Refer to the PDF documentation for details regarding both
hardware and software.
A copy of the Adobe Acrobat Reader®is included on your CD. The Reader provides a means of
reading and printing the PDF documents. Note that hardcopy versions of the manuals can be ordered
from the factory.
Note that you can access PDF documents directly from the data acquisition CD via the <View PDFs>
button located on the CD’s opening screen.
* The chapters are included in Part 1 of the DBK Options Manual. DBKs up to and including DBK34A are also
included in Part 1.
** Part 2 of the manual begins with DBK41.

vi 917094 DBK Option Cards & Modules User’s Manual
Table of Contents
DBK Basics
Introduction…… DBK Basics-1
How Do DBKs Connect? ……DBK Basics- 2
DBK Identification Tables ….. DBK Basics-9
Tips on Setting up a Data Acquisition
System …… DBK Basics-12
Power Supplies & Connectors ……DBK Basics-14
An Introduction to Power-Related
DBKs …… DBK Basics-15
Power Requirements...... DBK Basics-16
Calculating Your System’s Power
Needs …… DBK Basics-18
Additional Reading ….. DBK Basics-21
1 - Signal Management
Signal Modes ...... 1-1
System Noise ...... 1-5
Using DBK Cards and Modules for Signal
Conditioning ...... 1-6
Channel Control and Expansion ...... 1-7
Signal Acquisition ...... 1-9
Sequencer ...... 1-9
Scan Rate ...... 1-10
Triggering ...... 1-10
Counter/Timer Functions ...... 1-11
Simultaneous Sample and Hold (SSH) ...... 1-11
Two-Point Calibration of a Temperature
Measurement System ...... 1-12
Overview ...... 1-12
An Example of Two-Point Calibration ...... 1-13
Calculation of Scale and Offset ...... 1-14
Implementing the Scale and Offset Constants in
DaqView ...... 1-14
Converting Degrees from Celsius to
Fahrenheit ...... 1-14
One Known Temperature Environment ...... 1-15
Use of a Temperature Calibrator ...... 1-15
CE Compliance ...... 1-15
CE Standards and Directives ...... 1-16
Safety Conditions ...... 1-16
Emissions/Immunity Conditions ...... 1-17
CE Enhancements for Existing Products ...... 1-17
2 – System Connections and Pinouts
Overview …… 2-1
P1 – DB37 for Analog I/O …… 2-3
P2 – DB37 for Digital I/O …… 2-4
P3 – DB37 for Pulse/Frequency/High-Speed
Digital I/O …… 2-5
P4 to P1, P2, P3 Correlation …… 2-6
Ground Tables – P4 to P1, P2, P3 …… 2-9
3 – DBK Set Up in DaqView
Overview …… 3-1
Setting Up Analog DBKs …… 3-5
Setting Up Digital DBKs …… 3-7
Setting Internal Clock Speed to 100 kHz …3-9
4 – DBK Set Up in LogView
Overview …… 4-1
Setting Up Analog DBKs …… 4-4
Setting Up Digital DBKs …… 4-7
5 – Troubleshooting
ESD Handling Notice …… 5-1
Troubleshooting Checklist……5-1
Frequently Asked Questions ……5-3
Customer Assistance……5-6
Dimensional Drawings
DBK Documents
DBK1, 16-Connector BNC Adapter Module
DBK2, 4-Channel Voltage Output Card
DBK4, 2-Channel Dynamic Signal Input Card
DBK5, 4-Channel Current Output Card
DBK7, 4-Ch. Frequency-To-Voltage Input Card
DBK8,8-Channel High-Voltage Input Card
DBK9,8-Channel RTD Card
DBK10,3-Slot Expansion Chassis
DBK11A,Screw-Terminal & BNC Option Card
DBK15,Universal Current, Voltage Input Card
DBK16,2-Channel Strain-Gage Card
DBK17,4-Channel Simultaneous Sample and
Hold Card
DBK18,4-Channel, Low-Pass Filter Card
DBK20 and DBK21,Digital I/O Cards
DBK23,Isolated Digital Input Chassis
DBK24,Isolated Digital Output Chassis
DBK25,8-Channel Relay Output Card
DBK30A,Rechargeable Battery Module
DBK32A,Auxiliary Power Supply Card
DBK34A,UPS / Battery Module

DBK Option Cards and Modules User’s Manual 917094 vii
Part 2
DBK41,10-Slot Expansion Module
DBK42,16-Slot 5B Signal Conditioning Module
DBK43A,8-Channel Strain-Gage Module
DBK44,2-Ch. 5B Signal-Conditioning Card
DBK45,4-Ch. SSH and Low-Pass Filter Card
DBK46, 4-Channel Analog Output Card
DBK48,Multipurpose Isolated Signal-
Conditioning Module (supports up to 16 8B
Modules)
DBK50 and DBK51, Voltage Input Modules
DBK55, 8-Channel Frequency-to-Voltage Input
Module
DBK60,3-Slot Expansion Chassis
DBK65,8-Channel Transducer Interface Module
DBK70, Vehicle Network Interface, Analog
Multiplexer Module (see p/n 1056-0901)
DBK80, 16-Ch. Differential Voltage Input Card
with Excitation Output
DBK81, 7-Ch. T/C Card
DBK82, 14-Ch. T/C Card
DBK83, 14-Ch. T/C Card, uses external
connection pod
DBK84, 14-Ch. T/C Module
DBK85, 16-Ch. Differential Voltage Module
DBK90, 56-Ch. T/C Module
DBK100 Series, (DBK100/D, 100/T,101)
In-Vehicle Thermocouple Measurement System
DBK200 Series Matrix
DBK200, P4-to-P1 Adapter Board
DBK202, DBK203, DBK204 Series
P4-to-P1/P2/P3 Adapters
DBK206, P4-to-P1/P2/P3 Adapter Board with
Screw Terminals
DBK207 and DBK207/CJC, 16-Channel,
5B Carrier Boards
DBK208,Relay Carrier Board,
Opto-22 Compatible
DBK209,P4 to P1/P2/P3 Mini-Adapter Board
DBK210, 32-Ch. Digital I/O Carrier Board
DBK213,Screw-Terminal & Expansion Module
3-Card Slot, P1/P2/P3/P4 Compatibility
DBK214,16-Connector BNC Interface Module
P1/P2/P3/P4 Compatibility
DBK215,16-Connector BNC Connection Module
with 68-Pin SCSI Adaptability
DBK601 thru DBK609,Termination Panels
Discontinued DBKs
The following DBKs have been discontinued.
However, you may contact the factory if you
needdocumentation for these devices.
DBK12 and DBK13,A/I Multiplexer Cards
DBK19,14-Channel Thermocouple Card
DBK33,Triple-Output Power Supply Card
DBK34,Vehicle UPS Module
DBK40,18-Connector BNC Analog Interface
DBK52,14-Ch. Thermocouple Input Module
DBK53 and DBK54,Analog Multiplexing
Modules
DBK201, P4-to-P1/P2/P3 Adapter Board
DBK603, Termination Panel, Safety Jacks, SE
DBK605-B, Termination Panel, T/C, B Type, DE
DBK605-R, Termination Panel, T/C, R Type, DE
DBK605-S, Termination Panel, T/C, S Type, DE
DBK605-U, Termination Panel, T/C, U Type, DE
DBK609, Termination Panel, 5-Pin DIN

viii 917594 DBK Option Cards & Modules User’s Manual
This page is intentionally blank.

DBK Basics
This “DBK Basics” section of the manual does not apply to DaqBoard/500 Series or DaqBoard/1000
Series boards. Those boards are not intended for use with DBK options; nor will they support such
options.
Introduction…… 1
How Do DBKs Connect to the Data Acquisition Device? …… 2
Connecting DBKs to DaqBook/100/200 Series Devices, ISA-Type DaqBoards, & LogBooks … 2
Connecting DBKs to Daq PC-Cards ……3
Connecting DBKs to DaqBoard/2000 Series Boards …… 4
Connecting DBKs to DaqBook/2000 Series Devices …… 5
DBK Identification Tables ….. 9
Analog Output DBKs …… 9
Digital I/O Control DBKs …… 9
Analog Signal Conditioning DBKs …… 9
Expansion and Terminal Panel Connection DBKs …… 10
Power Supply DBKs …… 12
Tips on Setting up a Data Acquisition System …… 12
Power Supplies and Power Connectors ……14
An Introduction to Power-Related DBKs ….. 15
Power Requirements …… 16
Calculating Your System’s Power Needs …… 18
Additional Reading ….. 21
CAUTION
Turn off power to all devices connected to the system before connecting cables or
setting configuration jumpers and switches. Electrical shock or damage to
equipment can result even under low-voltage conditions.
CAUTION
The discharge of static electricity can damage some electronic components.
Semiconductor devices are especially susceptible to ESD damage. You should
always handle components carefully, and you should never touch connector pins or
circuit components unless you are following ESD guidelines in an appropriate ESD
controlled area. Such guidelines include the use of properly grounded mats and
wrist straps, ESD bags and cartons, and related procedures.
Introduction
The term “DBK” typically refers to a card or module that is used to expand or enhance a primary data
acquisition device, such as a DaqBook, DaqBoard, or LogBook. As will be seen in the upcoming DBK
identification tables, DBKs provide a wide variety of data acquisition functions. Depending on the DBKs
used, one or more of the following can be realized:
•signal conditioning
•analog output
•digital I/O
•channel expansion
•supplying powering to another acquisition device
•providing an interface for different connectivity; for example, in a DaqBoard/2000 Series board,
converting a P4, 100-pin connector to P1, P2, and P3 37-pin, DB37 connectors.
Daq Systems 886995 DBK Basics, pg. 1

Reference Notes: During software installation, Adobe®PDF versions of user manuals will
automatically install onto your hard drive as a part of product support. The default location
is in the Programs group, which can be accessed from the Windows Desktop. Refer to the
PDF documentation, especially the DBK Option Cards and Modules User’s Manual
(p/n 457-0905) for details regarding both hardware and software in relevant to DBKs.
A copy of the Adobe Acrobat Reader®is included on your CD. The Acrobat Reader
provides a means of reading and printing the PDF documents. Note that hardcopy versions
of the manuals can be ordered from the factory.
How Do DBKs Connect to the Data Acquisition Device?
Each DBK connects to the primary data acquisition device; e.g., a DaqBook, DaqBoard, or LogBook,
through one of three 37-pin ports, which are designated as follows:
•P1 – Analog I/O
•P2 – Digital I/O
•P3 – Pulse/Frequency/High-Speed Digital I/O
Depending on the primary data acquisition device, connectivity issues differ slightly. This will be made
clear by the figures and accompanying text that follow.
Connecting DBKs to DaqBook/100/200 Series Devices, ISA-Type DaqBoards, & LogBooks
Reference Notes:
oDaqBoard/2000 Series and /2000c Series users, refer to page 4.
oDaqBook/2000 Series users, refer to page 5.
For DaqBook/100 Series and DaqBook/200 Series devices, ISA-Type DaqBoards, and LogBooks, DBK
connections are not made directly to the port, but through a CA-37-x ribbon cable, where “x” indicates the
number of expansion devices that can be connected. For example, in addition to providing a DB37
connector to interface with the primary data acquisition device, a CA-37-3 cable includes three additional
DB37 connectors. These provide a means of adding three DBKs to one port. Use of a CA-37-16 cable will
allow up to 16 DBKs to be added. The CA-37-x cable system is excellent for DaqBooks, LogBooks, and
ISA-type DaqBoards.
/100 /200 Series
Connecting DBKs to a DaqBook/100 Series or /200 Series Device
pg. 2, DBK Basics 967794 Daq Systems

The previous figure applies to LogBooks, DaqBook/100/200 Series devices, and ISA-type DaqBoards. As
will be seen elsewhere in this document, some devices do not include all three connectors, i.e., P1, P2, and
P3.
Connecting DBKs to Daq PC-Cards
The Daq PC-Card is only intended for connections to a P1 connector of a single “passive” DBK card or
module. A passive DBK card or module is one that provides a desired connectivity (such as BNCs or screw
terminals), but performs no signal conditioning.
A CA-134 Interface Cable and a CN-86-F (dual DB37 female adapter) are used to provide the DB37,
P1 connector.
Daq PC-Card Cabling
The CA-134 cable connects to a CN-86-F adapter, which then connects to a single “passive” card or module.
The passive DBKs are:
•DBK1 – 16 Connector BNC Module
•DBK11A – Screw Terminal Option Card
•DBK40 – BNC Analog Interface
Reference Note:
For information regarding the passive DBKs (DBK1, DBK11A, and DBK40), refer to
the DBK Option Cards and Modules User’s Manual (p/n 457-0905).
Daq Systems 967794 DBK Basics, pg. 3

Connecting DBKs to DaqBoard/2000 Series Boards
DaqBoard/2000 Series and cPCI DaqBoard/2000 Series boards have 100-pin connectors designated as P4.
The 100 pins correlate to various pins on P1, P2, and P3 DB37 connectors.* Connectivity in the system is as
follows (see figure).
•Both the DaqBoard/2000 and /2000c Series board connect to a CA-195 cable.
The cable has two, 100-pin, P4 connectors.
•The CA-195 connects to a DBK200 Series adapter board or adapter module for 100-pin to
37-pin adaptations, e.g., P4-to-P1, P2, P3; but not necessarily all three.*
•The DBK200 Series adapter connects to a CA-37-x ribbon cable, where “x” indicates the
number of expansion devices that can be connected. For example, in addition to providing a
DB37 connector to interface with the primary data acquisition device, a CA-37-3 cable
includes three additional DB37 connectors. These provide a means of adding three DBKs to
one port. Use of a CA-37-16 cable will allow up to 16 DBKs to be added.
•The CA-37-x cable connects to expansion DBKs, in accordance with port type. For example,
Analog DBKs to port P1, Digital DBKs to port P2, and passive DBKs to port P3.
Connecting DBKs to a DaqBoard/2000 Series Board
* DaqBoard/2003 and cPCI DaqBoard/2003c are exceptions to the above connectivity method. The /2003
board typically connects directly to a DBK205 (P4-to-Screw Terminal Adapter), as discussed in the DBK
Option Cards and Modules User’s Manual (p/n 457-0905).
Note: DaqBook/2000 Series Devices, which are discussed in the following section, can also connect to DBKs via
a P4 connector, as indicated in the above figure.
pg. 4, DBK Basics 967794 Daq Systems

Connecting DBKs to DaqBook/2000 Series Devices
Several products make use of the DaqBook/2000 nomenclature. However, they do not all offer the same
connection options. Refer to pinouts for the specific devices, as needed.
Product Connects to DBK Expansions via …
DaqBook/2001 and /2005 37-pin connectors P1, P2, and P3. There is no P4.
DaqBook/2020 37-pin connectors P1 and P2. There is no P3 or P4.
DaqOEM/2001 and /2005 40-pin headers (JP1, JP2, and JP3). There is no P4.
DaqBook/2000A 37-pin connectors P1, P2, P3, and a 100-pin P4 connector.
DaqBook/2000E 37-pin connectors P1, P2, P3, and a 100-pin P4 connector.
DaqBook/2000X 37-pin connectors P1, P2, P3, and a 100-pin P4 connector.
For DaqBook/2000 Series devices, DBK connections can be made to Ports P1, P2, and/or P3 (when
applicable). For the “AEX” models a 100-pin P4 connector can be used. A discussion of both methods,
follows.
The P4 connector on a DaqBook/2000 “AEX” device shares signal connections with the
P1, P2, and P3 connectors. P4 offers no additional I/O. Connecting a DBK200 Series
Option to P4 via a CA-195 cable distances the P1, P2, P3 connection from the
DaqBook/2000 Series device. It does not provide any new signal I/O. See the following
Caution.
CAUTION
Signal conflicts between a DaqBook/2000 “AEX” device’s P1, P2, P3 connectors and its
P4 connector can result in erroneous readings and possible equipment damage.
Therefore, when connections have been made to P1, P2, and/or P3, use caution when
making connections through P4, and visa versa.
Refer to P1, P2, P3, and P4 pinouts to avoid making duplicate signal connections.
There are two ways to connect a DBK option to a DaqBook/2000 “AEX” device. The first
method is preferable, as it introduces less noise.
Preferred Method – (a) Connect a CA-37-x cable to the appropriate DB37 connector
[P1, P2, or P3] on the DaqBook/2000 Series device. (b) Connect the
free end of the cable to the DBK card or module.
Optional Method – (a) Connect a CA-195-x cable to the P4 connector on the
DaqBook/2000 Series device. (b) Connect the free end of the cable
to a DBK200 Series device. (c) Connect the DBK option to the
DBK200 Series device, as applicable.
The primary reason that less noise is seen in the “preferred” method is that a
DaqBook/2000 Series device’s P1 connector pertains only to analog acquisition signals
and the P2 connector pertains only to digital I/O. This provides a strong degree of
isolation between the two signal types. However, in the case of a CA-195-x cable
connected to P4, digital and analog signals co-exist in one cable.
If you need to use the P4 connection method, use of the 8-inch ribbon cable (CA-195-1)
will result in the lowest level of crosstalk [for that method].
Daq Systems 967794 DBK Basics, pg. 5

Connecting DBKs to a DaqBook/2000 Series Device via P1, P2, and/or P3
The DBKs do not connect directly to the port, but through a CA-37-x ribbon cable, where “x” indicates the
number of expansion devices that can be connected. For example, a CA-37-3 cable includes a 37-pin mating
connector to interface with the DaqBook/2000 Series DB37 connector (P1, P2, P3); it also includes three
additional DB37 connectors. These provide a means of adding three DBKs to one port. Use of a
CA-37-16 cable will allow up to 16 DBKs to be added to one DaqBook/2000 Series device DB37-type port.
DaqBook/2000
Series Device
Connecting DBKs to a DaqBook/2000 Series Device via P1, P2, and P3
The P4 connector on a DaqBook/2000 “AEX” device shares signal connections with the
P1, P2, and P3 connectors. P4 offers no additional I/O. Connecting a DBK200 Series
Option to P4 via a CA-195 cable distances the P1, P2, P3 connection from the
DaqBook/2000 Series device. It does not provide any new signal I/O. See the following
Caution.
CAUTION
Signal conflicts between a DaqBook/2000 “AEX” device’s P1, P2, P3 connectors and its
P4 connector can result in erroneous readings and possible equipment damage.
Therefore, when connections have been made to P1, P2, and/or P3, use caution when
making connections through P4, and visa versa.
The following pinouts indicate the P1, P2, and P3 pins, and their P4 equivalents.
Use the pinouts to avoid making duplicate signal connections.
pg. 6, DBK Basics 967794 Daq Systems

Connecting DBKs to a DaqBook/2000 “AEX” Device via P4
Every DaqBook/2000 “AEX” device has a 100-pin connector designated as P4. The P4 pins correlate to
various pins on P1, P2, and P3.
The P4 connector on a DaqBook/2000 “AEX” device shares signal connections with the
P1, P2, and P3 connectors. P4 offers no additional I/O. Connecting a DBK200 Series
Option to P4 via a CA-195 cable distances the P1, P2, P3 connection from the
DaqBook/2000 “AEX” device. It does not provide any new signal I/O. See the following
Caution.
CAUTION
Signal conflicts between a DaqBook/2000 AEX device’s P1, P2, P3 connectors and its
P4 connector can result in erroneous readings and possible equipment damage.
Therefore, when connections have been made to P1, P2, and/or P3, use caution when
making connections through P4, and visa versa.
Refer to P1, P2, P3, and P4 pinouts to avoid making duplicate signal connections.
A brief explanation of P4 connectivity for DaqBook/2000 AEX devices follows the illustration.
Daq Systems 967794 DBK Basics, pg. 7
P4
DaqBook/2000
Series Device
Connecting DBKs to a DaqBook/2000 AEX Device via P4
DaqBook/2001, DaqBook/2005, DaqOEM/2001, DaqOEM/2005, and DaqBook/2020 do
not have a P4 connector. The P4 connection option applies to “AEX” models only.

P4 connectivity for DaqBook/2000 “AEX” devices is as follows:
•One end of a CA-195 cable connects to the DaqBook/2000 “AEX” device’s 100-pin P4
connector. Note that the CA-195 cable has two P4 connectors.
•The other end of the CA-195 cable connects to a DBK200 Series adapter board [or adapter
module] for 100-pin to 37-pin adaptations, e.g., P4-to-P1, P2, P3; but not necessarily all three.
•The DBK200 Series adapter connects to one or more CA-37-x ribbon cables, where “x”
indicates the number of expansion devices that can be connected. For example, in addition to
providing a DB37 connector to interface with the primary data acquisition device, a CA-37-3
cable includes three additional DB37 connectors. These provide a means of adding three
DBKs to one port. Use of a CA-37-16 cable will allow up to 16 DBKs to be added.
•The CA-37-x cable connects to expansion DBKs, in accordance with port type. For example,
Analog DBKs to port P1, Digital DBKs to port P2, and passive DBKs to port P3.
There are two ways to connect a DBK option to a DaqBook/2000 “AEX” device. The first
method is preferable, as it introduces less noise.
Preferred Method – (a) Connect a CA-37-x cable to the appropriate DB37 connector
[P1, P2, or P3] on the DaqBook/2000 Series device. (b) Connect the
free end of the cable to the DBK card or module.
Optional Method – (a) Connect a CA-195-x cable to the P4 connector on the
DaqBook/2000 Series device. (b) Connect the free end of the cable
to a DBK200 Series device. (c) Connect the DBK option to the
DBK200 Series device, as applicable.
The primary reason that less noise is seen in the “preferred” method is that a
DaqBook/2000 “AEX” device’s P1 connector pertains only to analog acquisition signals
and the P2 connector pertains only to digital I/O. This provides a strong degree of
isolation between the two signal types. However, in the case of a CA-195-x cable
connected to P4, digital and analog signals co-exist in one cable.
If you need to use the P4 connection method, use of the 8-inch ribbon cable (CA-195-1)
will result in the lowest level of crosstalk [for that method].
The CE Cable Kit, p/n CA-209D, may be required for systems that require a P4 cable
length of 3 feet. The CA-209D kit includes a shielded version of the CA-195 cable, two
grounding pigtails, and associated cable clamps. When properly connected, the shielded
cable provides greater immunity to noise. The CE Compliance chapter includes details.
pg. 8, DBK Basics 967794 Daq Systems

Daq Systems 967794 DBK Basics, pg. 9
DBK Identification Tables
Analog Output DBKs
Analog Output
Product Name/Description I/O Connects To:
DBK2 Voltage Output Card 4 channels P1
DBK5 Current Output Card 4 channels P1
DBK46 Analog Output Card option for designated devices 4 channels Internal
PC Board
Digital I/O Control DBKs
Digital I/O / Control
Product Name/Description I/O Connects To:
DBK20 General-Purpose Digital I/O Card (Screw Terminals) 48 channels P2
DBK21 General-Purpose Digital I/O Card (DB37 Connectors) 48 channels P2
DBK23 Optically Isolated Digital-Input Module 24 channels P2
DBK24 Optically Isolated Digital-Output Module 24 channels P2
DBK25 Relay Output Card 8 channels P2
DBK208 Carrier board for Opto-22 Compatible SSR Digital Modules. 16 Channels P2 or P4
DBK210 Carrier Board for Grayhill 70M-Series Mini-Modules 32 Channels P2 or P4, P1 exp.
Notes oP1, P2, and P3 DB37 connectors do not exist on the DaqBoard/2000 Series boards or /2000c
Series boards, but are obtained by using P4 adapters (DBK200 series boards).
oFor DaqBoard/2000 Series devices, unless otherwise noted, the internal clocks should be set to
100 kHz when used with any of the following DBK options: DBK12, DBK13, DBK15, DBK19,
DBK52, DBK53, and DBK54. See specific DBK section for details.
oDaqBoard/500 Series boards do not support DBK options.
oDaqBoard/1000 Series boards do not support DBK options.
oDaqBook/2000 “AEX” devices have P1, P2, and P3 connectors and, in addition a P4 connector.

pg. 10, DBK Basics 967794 Daq Systems
Analog Signal Conditioning DBKs
The DBKs that are used for analog signal conditioning attach to transducers and condition their outputs into
analog voltages. An A/D converter, located in the primary acquisition device, measures the analog voltages.
There are many signal-conditioning solutions available (and more are in development). Note that DBK
high-capacity modules require more circuitry than can fit on a compact card.
Analog Signal Conditioning
Product Name/Description I/O Connects To:
DBK4 Dynamic Signal Input Card 2 channels P1
DBK7 Frequency-to-Voltage Input Card 4 channels P1
DBK8 High-Voltage Input Card 8 channels P1
DBK9 RTD Measurement Card 8 channels P1
DBK12 Low-Gain Analog Multiplexing Card See note 2 16 channels P1
DBK13 High-Gain Analog Multiplexing Card See note 2 16 channels P1
DBK15 Universal Current/Voltage Input Card See note 2 16 channels P1
DBK16 Strain-Gage Measurement Card 2 channels P1
DBK17 Simultaneous Sample & Hold Card 4 channels P1
DBK18 Low-Pass Filter Card 4 channels P1
DBK19 Thermocouple Card See note 2 14 channels P1
DBK42 5B Isolated Signal-Conditioning Module 16 channels P1
DBK43A Strain-Gage Measurement Module 8 channels P1
DBK44 5B Isolated Signal-Conditioning Card 2 channels P1
DBK45 SSH and Low-Pass Filter Card 4 channels P1
DBK48 8B Isolated Signal-Conditioning Module 16 channels P1
DBK50 Isolated High-Voltage Input Module 8 channels P1
DBK51 Isolated Low-Voltage Input Module 8 channels P1
DBK52 Thermocouple Input Module See note 2 14 channels P1
DBK53 Low-Gain Analog Multiplexing Module See note 2 16 channels P1
DBK54 High-Gain Analog Multiplexing Module See note 2 16 channels P1
DBK55 Frequency to Voltage Module 8 channels P1
DBK65 Channel Transducer Interface Module 8 channels P1
DBK70 Vehicle Network Interface, Analog Multiplexer Module 16 channels P1
DBK80 Differential Voltage Input Card with Excitation Output 16 channels P1
DBK81 Thermocouple Card, High-Accuracy 7 channels P1
DBK82 Thermocouple Card, High-Accuracy 14 channels P1
DBK83 Thermal Couple Card, High-Accuracy; uses Connection Pod 14 channels P1
DBK84 Thermocouple Module, High-Accuracy 14 channels P1
DBK85 Differential Voltage Module 16 channels P1
DBK90 Thermocouple Module, High-Accuracy 56 channels P1
DBK207 Carrier Board for 5B Compatible Analog Input Modules 16 channels P1 or P4
DBK207/CJC Carrier Board for 5B Compatible Analog Input Modules.
DBK207/CJC includes cold junction compensation (CJC) 16 channels P1 or P4
Notes oP1, P2, and P3 DB37 connectors do not exist on the DaqBoard/2000 Series boards or /2000c
Series boards, but are obtained by using P4 adapters (DBK200 series boards).
oFor DaqBoard/2000 Series devices, unless otherwise noted, the internal clocks should be set to
100 kHz when used with any of the following DBK options: DBK12, DBK13, DBK15, DBK19,
DBK52, DBK53, and DBK54. See specific DBK section for details.
oDaqBoard/500 Series boards do not support DBK options.
oDaqBoard/1000 Series boards do not support DBK options.
oDaqBook/2000 “AEX” devices have P1, P2, and P3 connectors and, in addition a P4 connector.