National Instruments SCB-12 User manual

USER GUIDE
SCB-12
QSFP28 and 8-Pin 3.5mm Pitch Connector to
Molex™Nano-Pitch I/O™Connector Block
This document provides safety, environmental, and regulatory information, connection
instructions, and specifications for the SCB-12.
Icon Definitions
Notice Take precautions to avoid data loss, loss of signal integrity, degradation of
performance, or damage to the model.
Caution Take precautions to avoid injury. Consult the model documentation for
cautionary statements when you see this icon printed on the model. Cautionary
statements are localized into French for compliance with Canadian requirements.
SCB-12
Aux I/O Breakout Accessory

Contents
Safety Guidelines...................................................................................................................... 2
Safety Cautions................................................................................................................. 2
Safety Voltages..................................................................................................................3
Safety Standards................................................................................................................3
EMC Guidelines........................................................................................................................3
Electromagnetic Compatibility Standards................................................................................ 4
What You Need to Get Started..................................................................................................5
Preparing the FlexRIO Module.................................................................................................6
Connecting to the SCB-12........................................................................................................ 6
Connecting to the Molex™ Nano-Pitch I/O™ DIO Port.....................................................6
Connecting to the DIO/MGT REF CLK Ports..................................................................7
Connecting to the DIO Spring Terminals..........................................................................7
Connecting to PORT 0...................................................................................................... 8
Using the Optional Ground Lug .......................................................................................9
Mounting the SCB-12 on a DIN Rail with the NI 9913 Mounting Kit.................................... 9
Specifications.......................................................................................................................... 10
DIO Signal Specifications...............................................................................................10
MGT Specifications........................................................................................................ 10
External Power Requirements.........................................................................................10
Physical Characteristics.................................................................................................. 10
Environment.................................................................................................................... 11
Compliance and Certifications........................................................................................ 11
Worldwide Support and Services............................................................................................ 12
Safety Guidelines
Caution Observe all instructions and cautions in the user documentation. Using
the product in a manner not specified can damage the product and compromise the
built-in safety protection. Return damaged products to NI for repair.
Attention Suivez toutes les instructions et respectez toutes les mises en garde de la
documentation d'utilisation. L'utilisation du produit de toute autre façon que celle
spécifiée risque de l'endommager et de compromettre la protection de sécurité
intégrée. Renvoyez les produits endommagés à NI pour réparation.
Safety Cautions
Caution All wiring must be insulated for the highest voltage used.
Attention Tout le câblage doit être isolé pour la plus haute tension utilisée.
2| ni.com | SCB-12 User Guide

Safety Voltages
Notice Connect only voltages that are below the limits described in the
specifications document for the FlexRIO module you will connect to the SCB-12.
You can search for specification documents by product name at ni.com/manuals.
Notice When you have finished using the SCB-12, power off any external signals
connected to the SCB-12 before you power off your computer.
Measurement Category I
Caution Do not connect the product to signals or use for measurements within
Measurement Categories II, III, or IV.
Attention Ne pas connecter le produit à des signaux dans les catégories de mesure
II, III ou IV et ne pas l'utiliser pour effectuer des mesures dans ces catégories.
Measurement Category I is for measurements performed on circuits not directly connected to
the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live
electrical supply system that powers equipment. This category is for measurements of voltages
from specially protected secondary circuits. Such voltage measurements include signal levels,
special equipment, limited-energy parts of equipment, circuits powered by regulated low-
voltage sources, and electronics.
Note Measurement Categories CAT I and CAT O are equivalent. These test and
measurement circuits are for other circuits not intended for direct connection to the
MAINS building installations of Measurement Categories CAT II, CAT III, or
CAT IV.
Safety Standards
This product is designed to meet the requirements of the following electrical equipment safety
standards for measurement, control, and laboratory use:
• IEC 61010-1, EN 61010-1
• UL 61010-1, CSA C22.2 No. 61010-1
EMC Guidelines
This product was tested and complies with the regulatory requirements and limits for
electromagnetic compatibility (EMC) stated in the product specifications. These requirements
and limits provide reasonable protection against harmful interference when the product is
operated in the intended operational electromagnetic environment.
This product is intended for use in industrial locations. However, harmful interference may
occur in some installations, when the product is connected to a peripheral device or test object,
or if the product is used in residential or commercial areas. To minimize interference with
SCB-12 User Guide | © National Instruments Corporation | 3

radio and television reception and prevent unacceptable performance degradation, install and
use this product in strict accordance with the instructions in the product documentation.
Furthermore, any changes or modifications to the product not expressly approved by NI could
void your authority to operate it under your local regulatory rules.
Notice Operate this product only with shielded cables and accessories. Do not use
unshielded cables or accessories unless they are installed in a shielded enclosure
with properly designed and shielded input/output ports and connected to the product
using a shielded cable. If unshielded cables or accessories are not properly installed
and shielded, the EMC specifications for the product are no longer guaranteed.
Electromagnetic Compatibility Standards
This product meets the requirements of the following EMC standards for electrical equipment
for measurement, control, and laboratory use:
• EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
• EN 55011 (CISPR 11): Group 1, Class A emissions
• AS/NZS CISPR 11: Group 1, Class A emissions
Note In the United States (per FCC 47 CFR), Class A equipment is intended for
use in commercial, light-industrial, and heavy-industrial locations. In Europe,
Canada, Australia, and New Zealand (per CISPR 11), Class A equipment is intended
for use only in heavy-industrial locations.
Note Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical
equipment that does not intentionally generate radio frequency energy for the
treatment of material or inspection/analysis purposes.
Note For EMC declarations, certifications, and additional information, refer to the
Product Certifications and Declarations section.
4| ni.com | SCB-12 User Guide

What You Need to Get Started
Figure 1. SCB-12 Kit Contents
4
23
1
SCB-12
Aux I/O Breakout Accessory
DIO
POWER
#6-32
DIO5
DIO6
DIO7
GND
DIO2
DIO3
DIO4
5VAUX
MGTREF CLK+
DIO0/
MGTREF CLK+
DIO1/
1. SCB-12
2. External Power Supply
3. 8-Pin Female Connector
4. SCB-12 User Guide
Additional Required Items
• FlexRIO module with compatible connectors
• Molex™ Nano-Pitch I/O™ cable
Breakout Cable Options
• SMA cable(s)
• Shielded, multiconductor cable with 16 AWG to 26 AWG wire
• An electrical or optical QSFP or QSFP+ cable
Table 1. Recommended QSFP or QSFP+ Cables
Cable
Power
Class Vendor Part Number Key Specification
Active Optical
Cable (Generic)
1 m (3 ft) 40 G
QSFP+
1 FiberStore QSFP-A001 Electrical rate of
0.5 Gb/s to 10.3125 Gb/s
Active Fiber
Cable Ethernet
10 m (30 ft)
40 GbE QSFP
1 Mellanox MC2210310-010
Optical rate of
1 Gb/s to 10.3125 Gb/s
±100 ppm
Note For optimal cable performance, adjust the TX settings in your bitfile
according to the manufacturer's cable specifications.
Accessories
• 2.5 mm flathead screwdriver
• #2 Phillips screwdriver
SCB-12 User Guide | © National Instruments Corporation | 5

• Wire insulation stripper
• Wire cutters
• Strain relief assembly for the Nano-Pitch cable
Note The strain relief assembly ships with Molex Nano-Pitch cables
purchased from NI. To ensure an uninterrupted connection, NI recommends,
but does not require, use of the strain relief assembly.
• NI 9913 DIN rail mounting kit (NI part number 781740-01)
Preparing the FlexRIO Module
1. Install and configure the FlexRIO module you want to connect to the SCB-12.
Note For installation and configuration instructions, refer to the Getting
Started Guide for your product, accessible at ni.com/manuals.
2. Connect the Molex™ Nano-Pitch I/O™ cable to your FlexRIO module.
Note For DIO signal specifications, refer to the specifications document for
the FlexRIO module you want to connect to the SCB-12. Search for
specification documents by product name at ni.com/manuals.
Connecting to the SCB-12
The SCB-12 enables access to DIO signals from a Molex™ Nano-Pitch I/O™ cable through
other common connectors. To use the SCB-12, you must first connect a Molex™ Nano-Pitch
I/O™ cable to your FlexRIO module.
Figure 2. SCB-12 Front Panel
DIO 5 DIO 6 DIO 7
GND
DIO 2 DIO 3 DIO 4
5V AUX
SCB-12
Aux I/O Breakout Accessory
PORT 0
POWER
DIO 0/
MGT REF CLK+
DIO 1/
MGT REF CLK–
DIO
Connecting to the Molex™Nano-Pitch I/O™DIO Port
1. Connect the Molex™ Nano-Pitch I/O™ cable to the port labeled DIO.
Notice Using signal voltages outside of the range specified for the FlexRIO
module you connect to the SCB-12 could damage the SCB-12 and any
instruments connected to it. For maximum voltage specifications, refer to the
documentation for the connected hardware. NI is not liable for any damage
resulting from using voltages outside of the recommended range.
6| ni.com | SCB-12 User Guide

2. To ensure the Molex™ Nano-Pitch I/O™ cable stays inserted, slide the strain relief
assembly over the Molex™ Nano-Pitch I/O™ cable body and screw it into position in the
front panel.
Note The strain relief assembly ships with Molex Nano-Pitch cables
purchased from NI. To ensure an uninterrupted connection, NI recommends,
but does not require, the use of the strain relief assembly.
Figure 3. Connecting the Strain Relief Assembly
SCB-12
Aux I/O Breakout Accessory
DIO
POWER
#6-32
DIO 5
DIO 6
DIO 7
GND
DIO 2
DIO 3
DIO 4
5V AUX
MGT REF CLK+
DIO 0/
MGT REF CLK+
DIO 1/
Connecting to the DIO/MGT REF CLK Ports
Screw a standard SMA cable into one or both of the DIO/MGT REF CLK ports.
Notice Using signal voltages outside of the range specified for the FlexRIO
module you connect to the SCB-12 could damage the SCB-12 and any instruments
connected to it. For maximum voltage specifications, refer to the documentation for
the connected hardware. NI is not liable for any damage resulting from using
voltages outside of the recommended range.
Tip To ease cable installation difficulties when connecting to multiple ports, NI
recommends connecting to the DIO/MGT REF CLK ports first.
Connecting to the DIO Spring Terminals
1. Strip and prepare the wires to connect to the DIO signals you want to access.
Notice To ensure the EMC performance specified for the connected hardware,
NI recommends using a multiconductor cable with an overall shield to connect
SCB-12 User Guide | © National Instruments Corporation | 7

to spring terminals. Terminate the cable shield to one of the PCB mounting
screws.
2. Align the 8-pin female connector included in your kit to the DIO spring terminals and the
retention screw holes on the SCB-12 front panel. Use a 2.5 mm flathead screwdriver to
loosely screw the attached retention screws into the front panel.
3. Use the flathead screwdriver to open the spring terminals and insert the prepared wires.
4. After inserting the wires, use your thumb to press firmly on the 8-pin female connector
until it fully seats into the front panel. Use the flathead screwdriver to tighten the
retention screws.
Figure 4. Connecting the 8-Pin Female Connector to the DIO Spring Terminals
SCB-12
Aux I/O Breakout Accessory
DIO
POWER
#6-32
DIO 5
DIO 6
DIO 7
GND
DIO 2
DIO 3
DIO 4
5V AUX
MGT REF CLK+
DIO 0/
MGT REF CLK+
DIO 1/
Connecting to PORT 0
Before you begin, refer to External Power Requirements on page 10 for maximum voltage
and power specifications.
1. To connect an optical QSFP or QSFP+ cable at PORT 0, first connect the external power
supply included in your kit to the power connector on the back panel of the SCB-12.
Figure 5. SCB-12 Back Panel
5.9 V
9 W MAX
2. Plug the external power supply into AC power.
Note Electrical QSFP or QSFP+ cables do not require the external power
supply included in your kit.
8| ni.com | SCB-12 User Guide

Note You must use the external power supply included in the SCB-12 kit, NI
part number 723537-01, to power an optical QSFP or QSFP+ cable.
3. The power LED on the SCB-12 front panel indicates a connection to external power.
After connecting the external power supply included in your kit, ensure the power LED is
lit.
4. Connect your optical or electrical QSFP or QSFP+ cable to PORT 0.
Note Refer to What You Need to Get Started on page 5 for recommended
QSFP and QSFP+ cable specifications.
Using the Optional Ground Lug
The SCB-12 provides an optional ground lug on the front panel.
Notice To mitigate ground loops or conducted noise that may impair the
functionality of the SCB-12, attach a thick wire or braided cable from the system
ground to the ground lug on the SCB-12 front panel.
Mounting the SCB-12 on a DIN Rail with the
NI 9913 Mounting Kit
The NI 9913 DIN rail mounting kit contains a clip for mounting the SCB-12 on a standard
35 mm DIN rail. The four holes on the bottom of the SCB-12 allow it to be mounted in
multiple orientations.
1. Using a #2 Phillips screwdriver and the two FLH #6-32 × 5/16" screws included in the
NI 9913 DIN rail mounting kit, fasten the DIN rail clip to the SCB-12.
Note Use only the screws provided in the DIN rail kit. Using longer screws
may damage the SCB-12.
Figure 6. DIN Rail Clip Installation
2. Clip the SCB-12 onto the DIN rail with the larger lip of the DIN rail clip positioned up.
SCB-12 User Guide | © National Instruments Corporation | 9

Figure 7. DIN Rail Clip Parts Locator Diagram
1
2
3
1. DIN Rail Clip
2. DIN Rail Spring
3. DIN Rail
Specifications
DIO Signal Specifications
Note For DIO signal specifications, refer to the specifications document for the
FlexRIO module you want to connect to the SCB-12. Search for specification
documents by product name at ni.com/manuals.
MGT Specifications
Line rate 10.3125 Gb/s
Power capabilities
Optical cable Class 1, 1.5 W
Electrical cable Not applicable
External Power Requirements
Voltage input range 5.9 V DC
Maximum power consumption 9 W, maximum
External power supply for optical cable
power
Included in kit (NI part number 723537-01)
Physical Characteristics
Dimensions 10.3 cm × 14.3 cm × 3.8 cm
(4.1 in. × 5.6 in. × 1.5 in.)
Weight 400 g (14.1 oz)
10 | ni.com | SCB-12 User Guide

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
Compliance and Certifications
Product Certifications and Declarations
Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance
information. To obtain product certifications and the DoC for NI products, visit ni.com/
product-certifications, search by model number, and click the appropriate link.
Environmental Management
NI is committed to designing and manufacturing products in an environmentally responsible
manner. NI recognizes that eliminating certain hazardous substances from our products is
beneficial to the environment and to NI customers.
For additional environmental information, refer to the Commitment to the Environment web
page at ni.com/environment. This page contains the environmental regulations and directives
with which NI complies, as well as other environmental information not included in this
document.
Waste Electrical and Electronic Equipment (WEEE)
EU Customers At the end of the product life cycle, all NI products must be
disposed of according to local laws and regulations. For more information about
how to recycle NI products in your region, visit ni.com/environment/weee.
SCB-12 User Guide | © National Instruments Corporation | 11

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540
e
NI 符合中国电子信息产品中限制使用某些有害物质指令(RoHS)。关于 NI
中国 RoHS 合规性信息，请登录 ni.com/environment/rohs_china。
(For information about China RoHS compliance, go to ni.com/
environment/rohs_china.)
Worldwide Support and Services
The NI website is your complete resource for technical support. At ni.com/support, you have
access to everything from troubleshooting and application development self-help resources to
email and phone assistance from NI Application Engineers.
Visit ni.com/services for information about the services NI offers.
Visit ni.com/register to register your NI product. Product registration facilitates technical
support and ensures that you receive important information updates from NI.
NI corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas,
78759-3504, USA. For up-to-date contact information for your location, visit ni.com/contact.
Information is subject to change without notice. Refer to the NI Trademarks and Logo Guidelines at ni.com/trademarks for
information on NI trademarks. Other product and company names mentioned herein are trademarks or trade names of their
respective companies. For patents covering NI products/technology, refer to the appropriate location: Help»Patents in your
software, the patents.txt file on your media, or the National Instruments Patent Notice at ni.com/patents. You can find
information about end-user license agreements (EULAs) and third-party legal notices in the readme file for your NI product. Refer
to the Export Compliance Information at ni.com/legal/export-compliance for the NI global trade compliance policy and how
to obtain relevant HTS codes, ECCNs, and other import/export data. NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS
TO THE ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS. U.S.
Government Customers: The data contained in this manual was developed at private expense and is subject to the applicable
limited rights and restricted data rights as set forth in FAR 52.227-14, DFAR 252.227-7014, and DFAR 252.227-7015.
© 2020 National Instruments Corporation. All rights reserved.
378352A-01 August 13, 2020