Measurement DBK202 User Manual

DBK202, DBK203, DBK204 Series P4-to-P1 / P2 / P3 Adapters

For Analog I/O, Digital I/O, & Pulse/Frequency For Use with DaqBook/2000 Series or
DaqBoard/2000 Series Devices

Overview …… 2
Connection Tips…… 4
Using Screw-Terminal Blocks …… 6
Using the P3 Header …... 11
Adding Resistor/Capacitor

Filter Networks …… 12 DBK203A, Rear Panel

DBK Decription

DBK202

Screw-terminal adapter board. Board only, no chassis.

DBK203
DBK203A

DBK204

DBK204c

Each of these units includes:

(a) P1, Analog Input, DB37 connector
(b) P2, Digital I/O DB37 connector
(c) P3, internal 40-pin header, for Digital I/O and Analog Out. The 40-pin header connects to a

Pulse/Frequency DBK card, or to a module’s P3 connector via a
CA-60 cable. These cables have a 40-pin female connector at one end and a DB37 (37-pin)

male connector at the other end.
(d) P4, 100-pin connector which includes all signals found in P1, P2, and P3, collectively.
(e) Internal, on-board, screw-terminal blocks which correlate with P1, P2, and P3

Screw-terminal adapter module with pull-out drawer. Superseded by DBK203A.
Screw-terminal adapter module (supersedes DBK203). DBK203A is the most popular of

these 5 DBK options.
DBK203A plus CA-209 CE cable kit. DBK204 units shipped prior to the release of

DBK203A use a DBK203.
DBK203A plus CA-209c CE cable kit. For use with compact PCIs and DaqBoard/2000c

Series boards. DBK204c units shipped prior to the release of DBK203A use a DBK203.

(f) Internal, on-board socket locations for custom RC Filter networks

Reference Notes:

In regard to calculating system power requirements refer to the DBK Basics section.
Chapter 2 includes pinouts for P1, P2, P3, and P4. Refer to pinouts applicable to your

system, as needed.

For a quick comparison of all DBK200 Series boards, refer to the DBK200 Series Matrix.

The matrix is located just before the DBK200 section.

Refer to the DaqBoard/2000 Series User’s Manual (p/n 1033-0901) or the

DaqBook/2000 Series User’s Manual (p/n 1103-0901) for information pertaining

to those products, as needed.

The DBK213, /214, and /215 sections contain information on devices which are closely

related to DBK203A.

DBK Option Cards and Modules 938994 DBK202, DBK203, and DBK204 Series, pg. 1

Overview

The various part numbers [DBK202, /203, /203A, /204, and /204c] of these closely related products are

described in the table on page 1. With exception of the DBK202 being a “board only,” the layout for each
is as indicated in the following figure.

DBK203A, Cover Plate Removed

* Custom RC Filter Setup is discussed in the section entitled, Adding Resistor/Cap acitor Filter

Networks, page 12.

** To remove the cover plate, remove the upper inside screw from each of the corner mounting

brackets (often referred to as protective ears); then lift the plate from the unit.

The information included in this section, when combined with that found in related DBK card and DBK
module sub-sections should enable you to set up your desired configuration.

It is important to note that the DaqBoard/2000 Series boards communicate [external from the host PC]
through a 100-pin P4 connector. The P1, P2, and P3 connectors discussed in association with these boards
are subset connectors of the 100-pin P4 connector. Certain DaqBook/2000 Series devices have both a P4
connector and a set of P1, P2, and P3 connectors on the unit. The System Connections and Pinouts chapter
includes pinouts for both types of devices, i.e., boards and “books.”

Each of the adapters discussed in this section provide a DB37 P1 connector, DB37 P2 connector, and a
40-pin “on-board” P3 header.

o P1 is used for Analog Input
o P2 for Digital I/O
o P3 for Pulse/Frequency (Digital and Counter/Timer) I/O
o P4 includes all signals found in P1, P2, and P3

In addition to these four connectors, each device includes terminal blocks designated TB1 through TB12.
The screw terminal blocks tie-in to P1, P2, and P3 and provide for easy signal connection.

pg. 2, DBK202, DBK203, and DBK204 Series

938994 DBK Option Cards and Modules

Screw-Terminal Adapter Board

The DBK202 Board provides a means of connecting channel input signals to a /2000 Series device through
one of three methods:

• With cables connected to P1, P2, and P3 connectors, as applicable.

• With signal wires connected to the appropriate screw-terminal blocks (TB1 through TB12).

Note that the DBK202 board’s silkscreen clearly identifies all screw terminals.

• With a combination of the above two methods.

When connecting a DBK202 to a P4 connector, a CA-195 cable is used. The cable has a P4 connector
located at each end.

Note: DBK202 contains mounting holes that allow the board to be secured inside a user-provided

enclosure.

Screw-Terminal Adapter Modules

The DBK203, DBK203A, DBK204, and DBK204c each consist of a DBK202 board housed in a chassis.
The DBK203 [and DBK204 and DBK204c units that use it] include a card drawer that can be slid free of
the module. The sliding card drawer provides easy access to the twelve terminal blocks and to the 40-pin
P3 header. The DBK203A (which supersedes the DBK203) and the DBK204 and DBK204c units which
use the DBK203A have no slide out drawer.

DBK203 Includes a Slide-Out DBK202 Board

DBK203A has no Slide-Out Option

Reference Note for Custom RC Filter Setup:
You can install resistors and capacitors to create RC networks for P1 Analog Input Channels.

For detailed information, refer to Adding Resistor/Capacitor Filter Networks, which begins on
page 12 of this DBK section.

DBK Option Cards and Modules 938994 DBK202, DBK203, and DBK204 Series, pg. 3

Connection Tips

CAUTION

Turn off power to the host PC and externally connected equipment prior to connecting
cables or signal lines to the DBK. Electric shock or damage to equipment can result
even under low-voltage conditions.

Take ESD precautions (packaging, proper handling, grounded wrist strap, etc.)
Use care to avoid touching board surfaces and onboard components. Only handle

boards by their edges (or ORBs, if applicable). Ensure boards do not come into
contact with foreign elements such as oils, water, and industrial particulate.

Do not confuse connectors. Ensure that you only connect P1 I/Os to P1, P2 I/Os to P2,
and P3 I/Os to P3. Improper connection may result in equipment damage.

Be sure to align the P4 orientation indicators () prior to mating the P4 connectors.

Example of a DBK202 Connected to Analog and Digital DBK Cards via P1 and P2, Respectively

The illustrations and actual board silkscreen are the only references you should need to make proper
connections.

A list of connection tips follows:

1. Ensure power is removed from the device(s) to be connected.

2. Observe ESD precautions when handling the board and making connections.

3. Do not make redundant connections. For example, for ANALOG IN you can use the P1

(DB37) connector or Terminal Blocks TB9 through TB12. You would not use both sets of
ANALOG IN connectors.

4. There is no need to access the board within a DBK203, DBK203A, DBK204, or DBK204c

unless you need to make connections to P3 or to a terminal block.

pg. 4, DBK202, DBK203, and DBK204 Series

938994 DBK Option Cards and Modules

5. The board’s 100-pin P4 connector connects to the DaqBoard/2000 P4 connector via a

CA-195 Cable.

6. To obtain maximum protection from static, connect the CHASSIS terminal to earth ground.
Notes: Regarding connections to DB37 connectors and to the P3 (40-pin) header:

(a) P1 connects to an analog DBK card or module’s P1 connector via a CA-37 cable.
(b) P2 connects to a Digital DBK card or module’s P2 connector via a CA-37 cable.
(c) The 40-pin header (P3) connects to a Pulse/Frequency DBK card, or to a module’s

P3 connector via a CA-60 cable. Note that CA-60 cables have a 40-pin female
connector at one end and a DB37 (37-pin) male connector at the other end.

7. To access the board, i.e., to connect to P3 or to terminal blocks:

DBK202 – access of the board is direct, or as determined by your own custom

a)

enclosure.

b)

DBK203 – Loosen the two thumbscrews on the front panel and slide the card
drawer free of the unit.

c)

DBK203A – Remove the upper inside screw from each of the four corner brackets
(see figure, page 2) and lift the cover plate from the unit.

d)

DBK204 and DBK204c – Follow step 2b or 2c as applicable to your unit.

8. For DBK204 and DBK204c refer to the separate CE Cable Kit instructions that are included
with the associated CE cable kit.

Example of a DaqBoard/2000 System using a DBK203 (or DBK203A)

DBK Option Cards and Modules 938994 DBK202, DBK203, and DBK204 Series, pg. 5