NI SCB-8 Manuel utilisateur
SCB-8 Features
2022-07-11
Contents
SCB-8 Purpose and Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Verifying the Kit Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Other Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Getting Started With the SCB-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SCB-8 Interior. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Connecting the SCB-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mounting Holes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Physical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Compliance and Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
NI Services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
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SCB-8 Features
SCB-8 Purpose and Introduction
This document explains how to connect and use the SCB-8 with DIO connectors on
National Instruments hardware.
Caution The protection provided by this product may be impaired if it is
used in a manner not described in this document.
Figure 1. SCB-8 Connector Block
1
2
2
1. SCB-8
2. Cover Screws
Verifying the Kit Contents
Verify that the following components are in your kit.
© National Instruments 3
SCB-8 Features
Figure 2. Kit Contents for the SCB-8
3
2
1
1. SCB-8
2. Cable Retention Bracket
3. SCB-8 User Guide
Other Equipment
There are several items not included in your SCB-8 kit that you need to operate the
SCB-8.
Required Items
■NI hardware with compatible Molex Nano-Pitch I/O connector
■OCuLink x4, 1 m cable (NI part number 785486-01)
Note Using an OCuLink x4 cable supplied by another manufacturer
is not recommended.
■Phillips #1 screwdriver
■ 0.125 in. flathead screwdriver
Visit ni.com for more information about these additional items.
Optional Items
■Shielded, multiconductor cable with 14–30 AWG wire
■16 position 0.1 inch dual row header
■Wire cutters
■Wire insulation stripper
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SCB-8 Features
SCB-8 Interior
Refer to the following figure for information about the interior of the SCB-8 when
connecting the SCB-8.
Figure 3. Interior of the SCB-8
2
2
3
0
GND GND
J2 J3
1
2
1
2
1 2 3 4
DIO
5 6 7 +5 V
1
1. 0.1 inch dual row header
2. Wall mounting screw holes
3. Cable tie loops
Connecting the SCB-8
Complete the following steps to connect and use the SCB-8 with NI hardware.
Install your NI hardware in a chassis. Refer to the hardware documentation for your
product(s) for installation instructions.
1. Remove the four cover screws with a Phillips #1 screwdriver and open the top
cover, as shown in Figure 1.
Caution Refer to the documentation for the hardware you connect
the SCB-8 to for maximum voltage specifications. Using voltages
outside of the specified range could damage the SCB-8 and any
instruments connected to it. NI is not liable for any damage resulting
from using voltages outside of the recommended range.
© National Instruments 5
SCB-8 Features
2. Connect wires to the 0.1 inch dual row header pins either directly or with a
user-supplied 0.1 inch dual row header.
Caution To ensure the EMC performance specified for the
connected hardware, any wires connected to screw terminals that
exit the enclosure must be shielded. NI recommends using a
multiconductor cable with an overall shield. Terminate the cable
shield to one of the PCB mounting screws.
3. Close the top cover and tighten the four cover screws.
4. Remove the protective plastic cover from the Nano-Pitch I/O connector on the
SCB-8, if present, and connect the OCuLink x4 cable to the connector.
5. Slide the included cable retention bracket around the cable assembly and
tighten the screws to the SCB-8, as shown in the following figure.
Figure 4. SCB-8 Cable Connection
1
2
3
1. SCB-8
2. Cable retention bracket
3. Cable assembly
6. Connect the OCuLink x4 cable to the Nano-Pitch I/O connector on your NI
hardware and secure with the appropriate retention bracket.
When you have finished using the SCB-8, power o any external signals connected
to the SCB-8 before you power o your computer.
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SCB-8 Features
Notice Clean the hardware with a so, nonmetallic brush. Make sure that
the hardware is completely dry and free from contaminants before
returning it to service.
Mounting Holes
You can mount the SCB-8, either vertically or horizontally, on a DIN rail in an
industrial environment.
You can purchase a compatible DIN rail kit from NI using the part number
781740-01.
The SCB-8 also has two screw holes for a generic wall mount. These wall mount
holes are designed for use with a #4 or #6 panhead screw with a minimum length of
15.88 mm (0.625 in.).
Figure 5. SCB-8 Mounting Screw Holes
2
2
63.5 mm (2.5 in.)
1
1. DIN rail mounting screw holes
2. Wall mounting screw holes
Specifications
© National Instruments 7
SCB-8 Features
Physical Characteristics
Dimensions 8.7 cm × 8.7 cm × 3.1 cm (3.4 in. × 3.4 in. × 1.2 in.)
Weight 355 g (12.5 oz)
Connector type Nano-Pitch I/O
0.1 inch dual row header
Figure 6. OCuLink x4 Connector Pin Assignments
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
Reserved
GND
MGT Rx+ 0
MGT Rx– 0
GND
MGT Rx+ 1
MGT Rx– 1
GND
DIO 4
DIO 5
GND
MGT REF+ / DIO 0
MGT REF– / DIO 1
GND
MGT Rx+ 2
MGT Rx– 2
GND
MGT Rx+ 3
MGT Rx– 3
GND
5.0 V
5.0 V
GND
MGT Tx+ 0
MGT Tx– 0
GND
MGT Tx+ 1
MGT Tx– 1
GND
DIO 6
DIO 7
GND
DIO 2
DIO 3
GND
MGT Tx+ 2
MGT Tx– 2
GND
MGT Tx+ 3
MGT Tx– 3
GND
Reserved
Figure 7. SCB-8 Pin Assignments
0 1
DIO
2 3 4 5 6 7
GND GND
+5 V
OCuLink Cable Pin Number Description 0.1 Inch Header Connection
A1 Reserved No Connection
A2 GND GND
A3 MGT Rx+ 0†No Connection
A3 MGT Rx- 0†No Connection
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SCB-8 Features
OCuLink Cable Pin Number Description 0.1 Inch Header Connection
A5 GND GND
A6 MGT Rx+ 1†No Connection
A7 MGT Rx- 1†No Connection
A8 GND GND
A9 DIO 4 DIO 4
A10 DIO 5 DIO 5
A11 GND GND
A12 MGT REF+/DIO 0 DIO 0
A13 MGT REF-/DIO 1 DIO 1
A14 GND GND
A15 MGT Rx+ 2†No Connection
A16 MGT Rx- 2†No Connection
A17 GND GND
A18 MGT Rx+ 3†No Connection
A19 MGT Rx- 3†No Connection
A20 GND GND
A21 5.0 V 5.0 V Output
B1 5.0 V 5.0 V Output
B2 GND GND
B3 MGT Tx+ 0†No Connection
B4 MGT Tx- 0†No Connection
B5 GND GND
B6 MGT Tx+ 1†No Connection
B7 MGT Tx- 1†No Connection
B8 GND GND
B9 DIO 6 DIO 6
B10 DIO 7 DIO 7
B11 GND GND
B12 DIO 2 DIO 2
B13 DIO 3 DIO 3
© National Instruments 9
SCB-8 Features
OCuLink Cable Pin Number Description 0.1 Inch Header Connection
B14 GND GND
B15 MGT Tx+ 2†No Connection
B16 MGT Tx- 2†No Connection
B17 GND GND
B18 MGT Tx+ 3†No Connection
B19 MGT Tx- 3†No Connection
B20 GND GND
B21 Reserved No Connection
†MGT Rx+/- n and MGT Tx+/- n are connected on the SCB-8.
Table 1. OCuLink x4 to 0.1 Inch Header Connector Signal Mapping
Environment
Maximum altitude 2,000 m (800 mbar) (at 25 °C ambient temperature)
Pollution Degree 2
Indoor use only.
Operating Environment
Ambient temperature range 0 °C to 55 °C
Relative humidity range 10% to 90%, noncondensing
Storage Environment
Ambient temperature range -40 °C to 71 °C
Relative humidity range 5% to 95%, noncondensing
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SCB-8 Features
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