Measurement DBK215 User Manual

DBK215 16-Connector BNC Connection Module

With 68-Pin SCSI Adaptability 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 …… 5
Adding RC Filter Networks …… 11
Specifications …… 13

DBK215 Front Panel

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

Overview

The DBK215 module is compatible with the following products:

•

DaqBoard/500 Series • DaqBoard/1000 Series

Includes a 68-pin SCSI connector designated as P5.

The DBK215 module includes:

o BNC Access to 16 inputs or outputs (on front panel)
o on-board screw-terminal blocks*
o on-board socket locations for custom RC Filter networks*
o 68-pin SCSI connector (on rear panel)

* The top cover plate must be removed to access the terminal blocks and

the RC filter network section of the board.

The 68-pin SCSI connector (P5) connects to a DaqBoard/500 Series or a DaqBoard/1000 Series 68-pin
SCSI connector via a CA-G55, CA-G56, or CA-G56-6 cable. Cable descriptions are provided on page 2.

The DBK215 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.

Reference Note:
DBK215 is intended for DaqBoard/500 Series and DaqBoard/1000 Series applications. Refer
to the DaqBoard/500 Series and DaqBoard/1000 Series documentation for detailed
information on those devices. For information concerning similar16 channel BNC
connectivity/interface boards, designed for use with other products, refer to the DBK213 and
DBK214 sections of the DBK Options manual (p/n 457-0905).

DBK215 Rear Panel

DBK Option Cards and Modules 967894 DBK215 pg. 1

DBK215 Block Diagram

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

Note that the 68-pin SCSI (P5) connector typically connects to a DaqBoard/500 Series or
DaqBoard/1000 Series board’s SCSI connector via a CA-G55, CA-G56, or CA-G56-6 cable.

o CA-G55 is a 3-foot long cable.
o CA-G56 is a 3-foot long shielded cable.
o CA-G56-6 is a 6-foot long shielded cable.

DBK215, 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.

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

2. As soon as the DBK215 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. 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 Differential
mode (via Jumpers J0 through J7). Information regarding these
tasks follows shortly.

5. DBK215’s 68-pin SCSI (P5) connector typically connects to a DaqBoard/500 Series or

DaqBoard/1000 Series board’s SCSI connector via a CA-G55, CA-G56, or CA-G56-6 cable.

o CA-G55 is a 3-foot long cable.
o CA-G56 is a 3-foot long shielded cable.
o CA-G56-6 is a 6-foot long shielded cable.

6. Refer to the separate 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.

Location of DBK215’s

Host Power LED

DBK Option Cards and Modules 967894 DBK215 pg. 3

System Example

DBK215 Connection to a DaqBoard/500 Series or DaqBoard/1000 Series Board

Notes regarding the above system example:

1) Any of three 68-conductor SCSI ribbon cables can be used.

o CA-G55 is a 3-foot long cable.
o CA-G56 is a 3-foot long shielded cable.
o CA-G56-6 is a 6-foot long shielded cable.

2) Signal lines connect to front panel BNC connectors or to the internal screw-terminal board.

3) When signal lines are connected to terminal blocks (instead of the BNC connectors) the wires are routed out through
the upper slot of the front panel.

DBK215, pg. 4

967894 DBK Option Cards and Modules

Using the Screw-Terminal Blocks

You must remove the DBK215 module’s cover plate to access the screw terminal blocks.
This is described in steps 1 and 2 below.

1. Remove the top inward screws from each of the 4 mounting brackets. See following figure.

To remove the cover plate you
must first remove the top
inward screw from each of the
4 mounting brackets.

The Cover Plate is Secured by 4 Srews

[2 Screws per-side]

2. After the 4 screws have been removed, carefully remove the cover plate.

3. As soon as the DBK215 cover is removed, verify that the Host Power LED is “Off.”

See following figure for location.

Host Power LED Location

4. Make the wiring connections to the terminals. Refer to the board’s silkscreen and to

the pin correlations on the next few pages.

5. Tighten the terminal block screws snug; but do not over-tighten.

6. After all terminal connections are made and verified correct, return the cover to the unit and

secure in place with the 4 screws removed earlier. Tighten snug, but do not over-tighten.

DBK Option Cards and Modules 967894 DBK215 pg. 5