Measurement DBK214 User Manual

DBK214 16-Connector BNC Interface Module

Includes P1/P2/P3/P4 compatibility for Analog I/O, Digital I/O, & Pulse/Frequency

Overview …… 1
Block Diagram …… 2
Connection Tips…… 3
System Examples …… 4
Using the Screw-Terminal Blocks …… 6
Adding RC Filter Networks …… 12
Specifications …… 14
Reference Notes …… 15

The DBK214 module is compatible with the following products:

• DaqBook/2000 Series • DaqBoard/2000 Series • DaqLab • DaqScan

DBK214 Front Panel

Upper Slot for Terminal Board Wiring Pass-Through
Lower section of 16 BNC Connectors

Overview

The DBK214 module includes:

o P1, male DB37 connector for Analog Input.
o P2, male DB37 connector for Digital I/O.
o P3, male DB37 connector for Pulse/Frequency (Digital and Counter/Timer) I/O, and

Analog Output.

o P4, 100-pin connector. Provides same signal connection as P1, P2, and P3 combined.
o 14 on-board screw-terminal blocks (accessible after removal of cover)
o The terminal blocks tie in to P1, P2, P3, and P4 and provide for easy signal connection.
o 8 BNC connectors (BNC0 through BNC7) for Analog Input
o 8 BNC connectors (BNCA through BNCH), custom configured by user for accessing

Analog I/O, Digital I/O, or Counter/Timer signals.

o On-board socket locations for custom RC Filter networks (accessible after removal of cover).

DBK214 Rear Panel

Upper section includes P2 and P3 DB37 connectors.
Lower section includes P1 DB37 connector and P4 100-pin connector.

The three DB37 connectors (P1, P2 and P3) can be used as direct connection points for I/O signals.
Optionally, convenient removable DB37 connectors [provided] can be used. Often signals are connected
to P1, P2, and/or P3 via cable and a DBK card or module.

The DBK214 provides BNC and screw-terminal access to all analog and digital I/O from the host data
acquisition device. Related to the screw-terminals is a front panel slot for routing all I/O wiring.

DBK Option Cards and Modules 967894 DBK214, pg. 1

DBK214 Block Diagram

* Accessory Kit p/n 1139-0800 includes jumper wires and a screw driver.

DBK214, pg. 2

967894 DBK Option Cards and Modules

Connection Tips

CAUTION

Turn off power to the host PC and externally connected equipment prior to connecting
cables or signal lines to DBKs. 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.

When using P4, e.g., for a DaqBoard/2000, be sure to align the P4 orientation
indicators [white arrows] prior to mating the P4 connectors.

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

2. As soon as the DBK214 cover is removed, verify that the Host

Power LED is “Off.” See figure at right for location.

3. Observe ESD precautions when handling the board and making

connections.

4. Do not make redundant connections. For example, for

ANALOG IN you could use the P1 (DB37) connector,

Location of DBK214’s

Host Power LED

or Terminal Blocks TB9 through TB12, or BNC connectors.

Redundant connections must be avoided.

5. You do not need to remove the cover unless you need to access a terminal block, customize

an RC filter network, or set a BNC channel to Single-Ended mode or to Differen tial mode
(via Jumpers J0 through J7). Information regarding these tasks follows shortly. RC filter

networks are not to be made or used in association with additional DBK expansion
options.

6. DBK214’s 100-pin P4 typically connects to a DaqBoard/2000 Series board’s P4 via a CA-

195
one-hundred conductor ribbon cable.

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 100­pin P4 connector. The System Connections and Pinouts chapters of the
product hardware manuals include pinouts.

7. Connections to the DB37 connectors are made via CA-37 cables or CA-255 cables:
(a) P1 connects to an analog DBK card or module’s P1 connector.
(b) P2 connects to a Digital DBK card or module’s P2 connector.
(c) P3 connects to a Pulse/Frequency DBK card module’s P3 connector.

8. Refer to the sep arate CE Cable Kit instructions that are included with the associated CE cable

kit. Refer to the Declaration of Conformity in regard to meeting CE requirements.

DBK Option Cards and Modules 967894 DBK214, pg. 3

System Examples

Example 1:

DBK214 Connected to a DaqBoard/2000

Note regarding the above system example:

A CA-195 100-conductor ribbon cable connects the P4 connector of the DBK214 to the P4 connector of the
DaqBoard/2000 (which is installed in the host PC).

DBK214, pg. 4

967894 DBK Option Cards and Modules

Example 2:

DBK214 Connected to a DaqBook/2001

Notes regarding the above system example:

1) Either of two Ethernet cables can be used: CA-242 is a 1.5 ft cable; CA-242-7 is a 7 ft. cable.

2) A CA-255 [or CA-37] cable is being used to connect the DBK214’s P1 connector to the P1 connector of the
DaqBook/2001.

3) The DBK214’s P1 connector [rear panel, lower-left] connects to the internal screw-terminal board to which analog I/O
signals could be connected via wire. The wires would be routed out through the upper slots of the front panel. In
addition, BNC connectors (for channels 0 through 7) connect [through the printed circuit board] to the P1 terminal
blocks.

4) A CA-255 [or CA-37] cable is used to connect the DBK214’s P2 connector to the DaqBook/2001 P2 connector.

5) The DBK214’s P2 connector connects to the internal screw-terminal board, to which digital I/O signals could be
connected via wire. The wires would be routed out through the upper slots of the front panel.

DBK Option Cards and Modules 967894 DBK214, pg. 5