DBK Option Cards and Modules 5

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

DBK214 Front Panel

Upper Slot for Terminal Board Wiring Pass-Through

Lower section of 16 BNC Connectors

The DBK214 module is compatible with the following products:

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

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, pg. 2

967894 DBK Option Cards and Modules

DBK214 Block Diagram

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

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,

or Terminal Blocks TB9 through TB12, or BNC connectors.

Redundant connections must be avoided.

Location of DBK214’s

Host Power LED

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 Differential 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 100-

pin 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.

8. 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.

DBK Option Cards and Modules 967894 DBK214, pg. 3

DBK214, pg. 4

967894 DBK Option Cards and Modules

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).

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

DBK214, pg. 6

967894 DBK Option Cards and Modules

Using the Screw-Terminal Blocks

You must remove the DBK214 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.

The Cover Plate is Secured by 4 Srews

[2 Screws per-side]

To remove the cover plate you

must first remove the top

inward screw from each of the

4 mounting brackets.

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

3. As soon as the DBK214 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.

In general, the following terminal block-to-signal relationships apply:

DBK214

Terminal

Blocks

Used for . . . Alternative

TB9

TB10

ANALOG INPUT P1, P4*

BNC 0 thru 7

TB11

TB12

ANALOG INPUT P1, P4*

TB5

TB6

TB7

TB8

DIGITAL I/O P2 or P4*

TB13**

TB14**

ANALOG INPUT

BNC Channels

0 thru 7**

P1, P4*

TB9,TB10

TB15

TB16

(Note 1)

USER

CONFIGURABLEB

NC Channels

A thru H

(See Note 1)

TB1

TB2

TB3

TB4

PULSE/

FREQUENCY/

DIGITAL I/O

ANALOG OUTPUT

P3 or P4*

DBK214 Board

Notes: (1) The P2 and P3 DB37 Connectors and their associated

“device-internal” cables are not shown.

(2) DBK214 does not make use of P5 [top center].

* P4 is used for connecting to DaqBoard/2000 Series devices.

** TB13 and TB14 are “virtual” terminal blocks which are routed in the printed circuit board to TB9 and TB10. The TB13 and TB14

silk-screened locations on the DBK214 board do not have physical screw terminal blocks.

Note 1: TB15 and TB16 are used for optional user-configured BNC connectors A through H. These connectors can be configured

on a per-channel basis as Analog [Input or Output], Digital I/O, or Counter/Timer. When BNC A through H are used, the

user must route wires from the “BNC routing terminal blocks” (TB15 and TB16) to the appropriate functional TB

termination points.

Accessory Wire Kit, p/n 1139-0800 includes jumper wires and a screwdriver.

The following pages correlate the DBK214 terminal block connectors with the associated pins of the P1, P2, and P3

DB37 connectors. Note that chapter 2 of the DBK Options Manual (457-0905) contains additional pin-outs, and

includes references to the 100-pin P4 connector. Also note that hardware manuals for the primary data acquisition

devices include pinout chapters.

DBK Option Cards and Modules 967894 DBK214, pg. 7

DBK214, pg. 8

967894 DBK Option Cards and Modules

Correlation to P1 – Pertains to Terminal Blocks TB9, TB10, TB11, and TB12 for Analog I/O.

Also see “Correlation to BNC Terminations (TB13 and TB14) on page DBK214-11.”

TB9 P1 Pin Number and Description

DIFF SE

0H 0 37 CH 0 IN (Single-Ended Mode) / CH 0 HI IN (Differential Mode)

0L 8 18 CH 8 IN (Single-Ended Mode) / CH 0 LO IN (Differential Mode)

1H 1 36 CH 1 IN (Single-Ended Mode) / CH 1 HI IN (Differential Mode)

1L 9 17 CH 9 IN (Single-Ended Mode) / CH 1 LO IN (Differential Mode)

2H 2 35 CH 2 IN (Single-Ended Mode) / CH 2 HI IN (Differential Mode)

2L 10 16 CH 10 IN (Single-Ended Mode) / CH 2 LO IN (Differential Mode)

3H 3 34 CH 3 IN (Single-Ended Mode) / CH 3 HI IN (Differential Mode)

3L 11 15 CH 11 IN (Single-Ended Mode) / CH 3 LO IN (Differential Mode)

FILT CAP LO N/A For RC filter networks install a wire jumper between the relevant FILT CAP LO and

AGND. Note that there is no association between FILT CAP LO and P4.

SGND 19 Signal Ground, Sense Common; reference ground, not for general use.

P1 – TB9

(Note 2)

TB10 P1 Pin Number and Description

DIFF SE

4H 4 33 CH 4 IN (Single-Ended Mode) / CH 4 HI IN (Differential Mode)

4L 12 14 CH 12 IN (Single-Ended Mode) / CH 4 LO IN (Differential Mode)

5H 5 32 CH 5 IN (Single-Ended Mode) / CH 5 HI IN (Differential Mode)

5L 13 13 CH 13 IN (Single-Ended Mode) / CH 5 LO IN (Differential Mode)

6H 6 31 CH 6 IN (Single-Ended Mode) / CH 6 HI IN (Differential Mode)

6L 14 12 CH 14 IN (Single-Ended Mode) / CH 6 LO IN (Differential Mode)

7H 7 30 CH 7 IN (Single-Ended Mode) / CH 7 HI IN (Differential Mode)

7L 15 11 CH 15 IN (Single-Ended Mode) / CH 7 LO IN (Differential Mode)

FILT CAP LO N/A For RC filter networks install a wire jumper between the relevant FILT CAP LO and

AGND. Note that there is no association between FILT CAP LO and P4.

SGND 19 Signal Ground, Sense Common; reference ground, not for general use.

P1 – TB10

(Note 2)

TB11 P1 Pin Number and Description

TTL TRIG 25 TTL Trigger, Digital IN, External TTL Trigger Input

A/I CLK 20 A/I Clock, External ADC Pacer Clock Input/ Internal ADC Pacer Clock Output

EXP 5 5 Expansion 5. Digital OUT, external GAIN select bit 1

EXP 6 6 Expansion 6. Digital OUT, external GAIN select bit 0

EXP 7 3 Expansion 7. Digital OUT, external ADDRESS, select bit 3

EXP 8 22 Expansion 8. Digital OUT, external ADDRESS, select bit 2

EXP 9 4 Expansion 9. Digital OUT, external ADDRESS, select bit 1

EXP 10 23 Expansion 10. Digital OUT, external ADDRESS, select bit 0

EXP 11 26 Expansion 11. Simultaneous Sample and Hold (SSH)

AGND * Analog Ground, Common

P1 – TB11

TB12 P1 Pin Number and Description

AGND * Analog Ground, Common

+ 15 V 21 Expansion, +15 V Power

- 15 V 2 Expansion, -15 V Power

AGND * Common Ground

+ 5 V 1 Expansion, +5 V Power

P1 – TB12

*Refer to Ground Correlation Tables in the DBK Options Manual (457-0905), chapter 2, System Connections and Pinouts.

Note 2: For TB9 and TB10, the filter network portion of the silkscreen is not shown. Instead, the DIFF and SE channel

identifiers have been moved next to the screws for ease in identification.

Correlation to P2 – Pertains to Terminal Blocks TB5, TB6, TB7, and TB8 for Digital I/O.

TB5 P2 Pin Number and Description

DGND * Digital Ground, Common

A7 30 Digital I/O: P2, Digital Port A, Bit 7; or P2 Expansion Data Bit 15

A6 31 Digital I/O: P2, Digital Port A, Bit 6; or P2 Expansion Data Bit 14

A5 32 Digital I/O: P2, Digital Port A, Bit 5; or P2 Expansion Data Bit 13

A4 33 Digital I/O: P2, Digital Port A, Bit 4; or P2 Expansion Data Bit 12

A3 34 Digital I/O: P2, Digital Port A, Bit 3; or P2 Expansion Data Bit 11

A2 35 Digital I/O: P2, Digital Port A, Bit 2; or P2 Expansion Data Bit 10

A1 36 Digital I/O: P2, Digital Port A, Bit 1; or P2 Expansion Data Bit 9

A0 37 Digital I/O: P2, Digital Port A, Bit 0; or P2 Expansion Data Bit 8

P2 – TB5

TB6 P2 Pin Number and Description

+5 V 18 Expansion +5 V Power

+5 V 20 Expansion +5 V Power

DGND * Digital Ground, Common

P2 – TB6

TB7 P2 Pin Number and Description

DGND * Digital Ground, Common

C7 22 Digital I/O: P2, Digital Port C, Bit 7; or P2 Expansion Data Bit 7

C6 23 Digital I/O: P2, Digital Port C, Bit 6; or P2 Expansion Data Bit 6

C5 24 Digital I/O: P2, Digital Port C, Bit 5; or P2 Expansion Data Bit 5

C4 25 Digital I/O: P2, Digital Port C, Bit 4; or P2 Expansion Data Bit 4

C3 26 Digital I/O: P2, Digital Port C, Bit 3; or P2 Expansion Data Bit 3

C2 27 Digital I/O: P2, Digital Port C, Bit 2; or P2 Expansion Data Bit 2

C1 28 Digital I/O: P2, Digital Port C, Bit 1; or P2 Expansion Data Bit 1

C0 29 Digital I/O: P2, Digital Port C, Bit 0; or P2 Expansion Data Bit 0

P2 – TB7

TB8 P2 Pin Number and Description

DGND * Digital Ground, Common

B0 10 Digital I/O: P2, Digital Port B, Bit 0; or P2 Expansion READ Output

B1 9 Digital I/O: P2, Digital Port B, Bit 1; or P2 Expansion WRITE Output

B2 8 Digital I/O: P2, Digital Port B, Bit 2; or P2 Expansion RESET Output

B3 7 Digital I/O: P2, Digital Port B, Bit 3; or P2 Expansion Address Bit 4 Out

B4 6 Digital I/O: P2, Digital Port B, Bit 4; or P2 Expansion Address Bit 3 Out

B5 5 Digital I/O: P2, Digital Port B, Bit 5; or P2 Expansion Address Bit 2 Out

B6 4 Digital I/O: P2, Digital Port B, Bit 6; or P2 Expansion Address Bit 1 Out

B7 3 Digital I/O: P2, Digital Port B, Bit 7; or P2 Expansion Address Bit 0 Out

P2 – TB8

*Refer to Ground Correlation Tables in the DBK Options Manual (457-0905), chapter 2, System Connections and Pinouts.

DBK Option Cards and Modules 967894 DBK214, pg. 9

DBK214, pg. 10

967894 DBK Option Cards and Modules

Correlation to P3 – Pertains to Terminal Blocks TB1, TB2, TB3, and TB4 for Pulse/Frequency/Digital I/O.

TB1 P3 Pin Number and Description

D0 10 P3 Digital Port Bit 0

D1 9 P3 Digital Port Bit 1

D2 8 P3 Digital Port Bit 2

D3 7 P3 Digital Port Bit 3

D4 6 P3 Digital Port Bit 4

D5 5 P3 Digital Port Bit 5

D6 4 P3 Digital Port Bit 6

D7 3 P3 Digital Port Bit 7

DGND * Digital Ground, Common

+5V 20 Expansion, +5 Volt Power

P3 – TB1

TB2 P3 Pin Number and Description

D8 29 P3 Digital Port Bit 8

D9 28 P3 Digital Port Bit 9

D10 27 P3 Digital Port Bit 10

D11 26 P3 Digital Port Bit 11

D12 25 P3 Digital Port Bit 12

D13 24 P3 Digital Port Bit 13

D14 23 P3 Digital Port Bit 14

D15 22 P3 Digital Port Bit 15

DGND * Digital Ground, Common

P3 – TB2

TB3 P3 Pin Number and Description

CH0 (DAC0) 34 Analog Out; Analog DAC 0 Output

AGND * Analog Ground, Common; intended for use with DACs

EXP 0 (DAC2) 32 Analog Out; Analog DAC 2 Output

AGND * Analog Ground, Common; intended for use with DACs

CH1 (DAC1) 33 Analog Out; Analog DAC 1 Output

A/O CLK 21 Analog Out Clock; External DAC Pacer Clock Input/

Internal DAC Pacer Clock Output

EXP 1 (DAC3) 31 Analog Out; Analog DAC 3 Output

DGND * Digital Ground, Common

+15 V 19 Expansion, + 15 VDC

-15 V 37 Expansion, -15 VDC

P3 – TB3

TB4 P3 Pin Number and Description

EXP 2 12 Reserved

EXP 3 13 Reserved

EXP 4 14 Reserved

TMR 0 15 P3 Timer 0 Output

TMR 1 16 P3, Timer 1 Output

CNT 3 35 P3 Counter 3 Input

CNT 2 17 P3 Counter 2 Input

CNT 1 36 P3 Counter 1 Input

CNT0 18 P3 Counter 0 Input

DGND * Digital Ground, Common

P3 – TB4

*Refer to Ground Correlation Tables in the DBK Options Manual (457-0905), chapter 2, System Connections and Pinouts.

P1 Correlation to Analog Input BNC Terminations – BNC Ch 0 through BNC Ch 7

“Virtual” Terminal Blocks TB13 and TB14 for ANALOG INPUT connect to TB9 and TB10 through the printed circuit board.

TB13 (“Virtual” Terminal Block) P1 Pin Number and Description

BNC CH DIFF SE Pin SE = Single Ended ; DIFF = Differential Jumper Used

BNC0+ 0H 0 37 CH 0 IN (SE) / CH 0 HI IN (DIFF)

BNC0- 0L 8 18 CH 8 IN (SE) / CH 0 LO IN (DIFF)

BNC1+ 1H 1 36 CH 1 IN (SE) / CH 1 HI IN (DIFF)

BNC1- 1L 9 17 CH 9 IN (SE) / CH 1 LO IN (DIFF)

BNC2+ 2H 2 35 CH 2 IN (SE) / CH 2 HI IN (DIFF)

BNC2- 2L 10 16 CH 10 IN (SE) / CH 2 LO IN (DIFF)

BNC3+ 3H 3 34 CH 3 IN (SE) / CH 3 HI IN (DIFF)

BNC0+ 3L 11 15 CH 11 IN (SE) / CH 3 LO IN (D DIFF)

AGND N/A N/A * Analog Ground N/A

TB13 does not physically exist on

DBK214. A silkscreen of TB13 is

present as a visual aid to signal

routing and configuration.

A header located beneath TB14 and

TB16 is used to set the BNC

channels to Single-Ended or to

Differential. Simply place channel’s

2-pin jumper in the appropriate

position (SE or DIFF).

TB14 (“Virtual” Terminal Block) P1 Pin Number and Description

BNC CH DIFF SE Pin SE = Single Ended ; DIFF = Differential Jumper Used

BNC4+ 4H 4 33 CH 4 IN (SE) / CH 4 HI IN (DIFF)

BNC4- 4L 12 14 CH 12 IN (SE) / CH 4 LO IN (DIFF)

BNC5+ 5H 5 32 CH 5 IN (SE) / CH 5 HI IN (DIFF)

BNC5- 5L 13 13 CH 13 IN (SE) / CH 5 LO IN (DIFF)

BNC6+ 6H 6 31 CH 6 IN (SE) / CH 6 HI IN (DIFF)

BNC6- 6L 14 12 CH 14 IN (SE) / CH 6 LO IN (DIFF)

BNC7+ 7H 7 30 CH 7 IN (SE) / CH 7 HI IN (DIFF)

BNC7+ 7L 15 11 CH 15 IN (SE) / CH 7 LO IN (DIFF)

AGND N/A N/A * Analog Ground N/A

TB14 does not physically exist on

DBK214. A silkscreen of TB14 is

present as a visual aid to signal

routing and configuration.

A header located beneath TB14 and

TB16 is used to set the BNC

channels to Single-Ended or to

Differential. Simply place channel’s

2-pin jumper in the appropriate

position (SE or DIFF).

Correlation to Custom BNC Terminations – BNC Ch A through BNC Ch H

Pertains to Terminal Blocks TB15 and TB16 for Custom Configuration on a per-channel basis.

TB15 (“Routing” Terminal Block)

BNC CH Description

BNCA+

BNCA-

BNCB+

BNCB-

BNCC+

BNCC-

BNCD+

BNC channels A through D are configured on a per-channel basis by the user. TB15 is a routing

terminal block used to connect BNCs (A thru D) to the desired signals, which are selected via a second

DBK214 terminal block. For example: a user could run a wire from BNCA+ to TB4 screw terminal

“TMR0” and BNCA- to TB4 DGND to create a BNC timer connection.

Accessory Wire Kit, p/n 1139-0800 includes jumper wires and a screwdriver.

AGND Analog Ground *

TB15

TB16 (“Routing” Terminal Block)

BNC CH Description

BNCA+

BNCA-

BNCB+

BNCB-

BNCC+

BNCC-

BNCD+

BNC channels E through H are configured on a per-channel basis by the user. TB16 is a routing

terminal block used to connect BNCs (E thru H) to the desired signals, which are selected via a second

DBK214 terminal block.

Customizing is as described for BNCA through BNCD above.

Accessory Wire Kit, p/n 1139-0800 includes jumper wires and a screwdriver.

AGND Analog Ground *

TB16

DBK Option Cards and Modules 967894 DBK214, pg. 11

DBK214, pg. 12

967894 DBK Option Cards and Modules

Adding Resistor/Capacitor Filter Networks

WARNING

Disconnect the DBK214 from power and signal sources prior to installing capacitors or

resistors.

CAUTION

Ensure wire strands do not short power supply connections (+15 V, -15 V, +5 V, etc.) to

any terminal potential. Failure to do so could result in damage to DaqBook/2000 Series

devices or DaqBoard/2000 Series boards.

Do not exceed maximum allowable inputs (as listed in product specifications). There

should never be more than 30 V with reference to analog ground (AGND) or earth

ground.

You must provide strain-relief (lead slack) to all leads leaving the module. Use tie-wraps

[not included] to secure strain-relief.

Always connect the CHASSIS terminal to earth ground. This will maximize static

protection.

If a channel is not associated with a DBK expansion option you can install a customized RC filter network

to improve the signal-to noise ratio, assuming that an unacceptable level of noise exists. DBK214’s

internal board includes silk-screened sockets for installing RC filter networks. The following table

contains values that are typical for RC filter network components.

Typical One-Pole Low Pass Filter

Values

for DBK214

R C f f

Ohms µF Hertz

(-3dB)

kHz

(-3dB)

510 1 312 0.31

510 0.47 664 0.66

510 0.22 1419 1.42

510 0.1 3122 3.12

510 0.047 6643 6.64

510 0.022 14192 14.19

510 0.01 31223 31.22

510 0.0047 66431 66.43

470 0.0033 102666 102.67

Do not use RC filters in conjunction with additional DBK expansion

accessories.

An Example of Customer-Installed

Capacitors and Filters for RC Networks

In this example Channels 0 and 8 are shown as Single-Ended.

Channel 1 is Differential, i.e., using 1H and 1L (channel High and Low).

The following three notes pertain to the above figure.

Note 1: The 3 horizontal capacitors [as oriented in the illustration] are optional filter capacitors.

Note 2: The vertical capacitor [as oriented in the illustration] is an optional isolation capacitor used for the

reduction of Differential noise. Such capacitor placement is

not used in Single-Ended applications.

Note 3: If installing filter resistors, carefully drill out the indicated centers with a 1/16 inch drill-bit. Otherwise

the resistor will be short-circuited.

Prior to installing RC components, review the previous Warning and Caution

statements, then read over the following information regarding resistors and

capacitors.

• Do not use RC filters in conjunction with additional DBK expansion accessories.

• Prior to installing a resistor to the filter network you must drill a 1/16” hole through

the center pinhole [beneath the board’s silkscreen resistor symbol] as indicated in the

preceding figure. Failure to do so will short-circuit the resistor.

• Do not drill holes on the board for channels, unless those channels are to receive a

filter network (see preceding statement).

• Resistors should be ¼ watt, film-type with up to 5% tolerance. Do not use wire-

wound resistor types.

• A resistor value of 510 Ω is recommended. Do not exceed 510 Ω.

• Capacitors used are to be of the film dielectric type (e.g., polycarbonate or

NPO ceramic), above 0.001 µF.

• RECOMMENDED: For reduction of both Common Mode Noise and Differential

Mode Noise, use one capacitor between Channel High and AGND; and use a second

capacitor between Channel Low and AGND.

• For reduction of Differential Noise [when no reduction of Common Mode Noise is

needed] position a capacitor across the respective Channel High and Channel Low.

• When in Differential Mode, using capacitors between Channel High, Channel Low,

and AGND may cause a slight degradation of wideband Common Mode rejection.

• When making a RC filter network, always install a wire jumper between the relevant

FILT CAP LO and AGND. FILT CAP LO terminals are located on TB9 and TB10.

DBK Option Cards and Modules 967894 DBK214, pg. 13

DBK214, pg. 14

967894 DBK Option Cards and Modules

Specifications for DBK214

Operating Environment:

Temperature: -30°C to 70°C

Relative Humidity: 95% RH, non-condensing

Connectors:

P1: male DB37 connector for analog expansion or connection to primary acquisition device*

P2: male DB37 connector for digital expansion or connection to primary acquisition device*

P3: male DB37 connector for pulse/frequency/digital I/O, analog output, or connection to primary

acquisition device*

P4: 100-pin connector for connection to a /2000 Series device that includes a P4 connector;

e.g., DaqBoard/2000.

Screw Terminals: 14 banks of 10-connector blocks

Wire Size: 12 to 28 AWG

Dimensions:

285 mm W x 220 mm D x 45 mm H (11” x 8.5” x 2.7”)

Weight:

1.36 kg (3 lbs)

Cables and Accessories:

Item Description Part Number

Rack Mount Kit, p/n RackDBK4

100-conductor expansion cables; mate with P4 connectors:

3 ft., non-CE Compliant CA-195

3 ft., CE Compliant CA-209

6 ft., non-CE Compliant CA-195-6

37-conductor cables; mate with DB37 connectors:

2 in., shielded T-cable CA-255-2T

4 in., shielded T cable CA-255-4T

8 in., shielded T cable CA-255-8T

37-conductor ribbon cable CA-37-X

Accessory Wire Kit 1139-0800

Includes jumper wires and a

screwdriver.

*DaqBook/2000 Series, DaqLab/2000 Series, DaqScan/2000 Series

Specifications subject to change without notice.

Reference Notes:

In regard to calculating system power requirements refer to the DBK Basics section.

Chapter 2 of the DBK Options Manual 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 of this manual.

Refer to the user manual for the primary data acquisition device as needed. The user’s

manuals include device specific pinouts.

DBK Option Cards and Modules 967894 DBK214, pg. 15

DBK214, pg. 16

967894 DBK Option Cards and Modules