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©

 National Instruments Corporation

3

NI TB-2641 Installation Instructions

Figure 2.  

NI TB-2641 Terminal Block Signal Connections

Accessories

Note

For information about using shielded cabling, refer to the NI PXI-2532 Declaration 

of Conformity (DoC). To obtain the DoC, visit 

ni.com/certification

, search by 

model number or product line, and click the appropriate link in the Certification column.

Table 1.  

Accessories for the NI TB-2641

Accessory

Manufacturer

Part Number

NI SCB-264

screw terminal block

National Instruments

779341-01

Row and column cable kit for the 
NI SCB-264

X

terminal blocks

National Instruments

779346-01

Row connection cable for column expansion

National Instruments

779325-01

16 Conductor, .05 in. pitch ribbon cable 
assemblies

Samtec

FFSD-08-01-N

34 Conductor, .05 in. pitch ribbon cable 
assemblies

Samtec

FFSD-17-01-N

COLUMN

CONNECTION BOARD

33

3

2

1

0

3

1

3

0

1

3

2

2

4

6

1

3

5

7

6

3

62

COLUMN

S

J2

J

3

J2

J

3

5

7

6

4

1

3

2

5

7

6

4

ROW

HEADER

S

ROW

PROTECTION BYPA

SS

0 (Pin 1)

0 (Pin 1)

0 (Pin 1)

Summary of Contents for TB-2641

Page 1: ...ll the terminal block Make sure you have the following NI TB 2641 terminal block 1 8 in flathead and 1 Phillips screwdrivers Eight 2 mm jumpers Two 34 conductor 28 AWG 050 in pitch ribbon cable assemblies not included One 16 conductor 28 AWG 050 in pitch ribbon cable assembly not included Note Refer to the Accessories section for information about ordering the appropriate cable assemblies Connecti...

Page 2: ...he terminal block housing 6 Connect each ribbon cable to the appropriate headers on the column connection board and the module interface board 7 Reassemble the terminal block Note For information about protection resistance and matrix expansion refer to the NI Switches Help Figure 1 NI TB 2641 Terminal Block 1 Top Cover Screw 2 Top Cover 3 Strain relief Screws 4 Strain relief Bar 5 Column Connecti...

Page 3: ...ccessories for the NI TB 2641 Accessory Manufacturer Part Number NI SCB 264X screw terminal block National Instruments 779341 01 Row and column cable kit for the NI SCB 264X terminal blocks National Instruments 779346 01 Row connection cable for column expansion National Instruments 779325 01 16 Conductor 05 in pitch ribbon cable assemblies Samtec FFSD 08 01 N 34 Conductor 05 in pitch ribbon cable...

Page 4: ...eristics All input characteristics are DC ACpk or a combination unless otherwise specified Maximum switching voltage Channel to channel 100 V Channel to ground 100 V CAT I Caution This module is rated for Measurement Category I and intended to carry signal voltages no greater than 100 V This module can withstand up to 500 V impulse voltage Do not use this module for connections to signals or for m...

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