Ross openGear SFC-6901 User manual

SFC-6901 User Guide

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SFC-6901 · User Guide
• Ross Part Number: 6901DR-004-01
• Release Date: August 2, 2023.
• Software Version: v1.0
The information contained in this Guide is subject to change without notice or obligation.
Copyright
©2023 Ross Video Limited, Ross®, and any related marks are trademarks or registered trademarks
of Ross Video Limited. All other trademarks are the property of their respective companies.
PATENTS ISSUED and PENDING. All rights reserved. No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in any form or by any means, mechanical, photocopying,
recording or otherwise, without the prior written permission of Ross Video. While every precaution
has been taken in the preparation of this document, Ross Video assumes no responsibility for
errors or omissions. Neither is any liability assumed for damages resulting from the use of the
information contained herein.
Patents
Patent numbers US 7,034,886; US 7,508,455; US 7,602,446; US 7,802,802 B2; US 7,834,886; US
7,914,332; US 8,307,284; US 8,407,374 B2; US 8,499,019 B2; US 8,519,949 B2; US 8,743,292 B2; GB
2,419,119 B; GB 2,447,380 B; and other patents pending.
Notice
The material in this manual is furnished for informational use only. It is subject to change without
notice and should not be construed as commitment by Ross Video Limited. Ross Video Limited
assumes no responsibility or liability for errors or inaccuracies that may appear in this manual.
Safety Notices
Refer to the “Important Regulatory and Safety Notices” document that accompanied your
product.
Statement of Compliance
This product has been determined to be compliant with the applicable standards, regulations, and
directives for the countries where the product is marketed.
Compliance documentation, such as certification or Declaration of Compliance for the product is
available upon request by contacting [email protected]. Please include the product;
model number identifiers and serial number and country that compliance information is needed in
request.
EMC Notices
US FCC Part 15
This equipment has been tested and found to comply with the limits for a class A Digital device,
pursuant to part 15 of the FCC Rules.

These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a Commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
Canada
This Class “A” digital apparatus complies with Canadian ICES-003 and part 15 of the FCC Rules.
Cet appareil numerique de la classe “A” est conforme a la norme NMB-003 du Canada.
European Union
This equipment is in compliance with the essential requirements and other relevant provisions
established under regulation (EC) No 765/2008 and Decision No 768/2008/EC referred to as the
“New Legislative Framework”.
Australia/New Zealand
This equipment is in compliance with the provisions established under the Radiocommunications
Act 1992 and Radiocommunications Labeling (Electromagnetic Compatibility) Notice 2008.
Korea
This equipment is in compliance with the provisions established under the Radio Waves Act.
Class A equipment (Broadcasting and communications service for business use)
This device is a business-use (Class A) EMC-compliant device. The seller and user are advised to be
aware of this fact. This device is intended for use in areas outside home.
International
This equipment has been tested under the requirements of CISPR 22:2008 or CISPR 32:2015 and
found to comply with the limits for a Class A Digital device.
Notice — Changes or modifications to this equipment not expressly approved by Ross Video Ltd. could
void the user’s authority to operate this equipment.
Warning — This equipment is compliant with Class A of CISPR 32. In a residential environment this
equipment may cause radio interference.
Notice — This is a Class A product. In domestic environments, this product may cause radio
interference, in which case the user may have to take adequate measures.
Type of Equipment User’s Guide
A
(߶הࡈ ؏ܞݦ࢕ࢢ)
Class A Equipment
(Industrial Broadcasting &
Communication Equipment)
ࢇ Е ߶הࡈ(A)ࢷ࢕ળࢶଢԻ۰ શ
֐࢕ ӖЕ یࡈ࢕Е ࢇ ࢺࡶ ࣯ࢂଜݤ ؂Ԃ
ֲ,ɼࢽ࠹ࢂ ࠇ߾۰ یࡈଜЕ ʨࡶ ּࢶࡳԻ
ଢТЬ.
This equipment is Industrial (Class A)
electromagnetic wave suitability equipment and
seller or user should take notice of it, and this
equipment is to be used in the places except for home.

Maintenance/User Serviceable Parts
Routine maintenance to this openGear product is not required. This product contains no user
serviceable parts. If the module does not appear to be working properly, please contact Technical
Support using the numbers listed under the “Contact Us” section of this manual. All openGear
products are covered by a generous 5-year warranty and will be repaired without charge for
materials or labor within this period. See the “Warranty and Repair Policy” section in this manual
for details.
Environmental Information
The equipment may contain hazardous substances that could impact health and the environment.
To avoid the potential release of those substances into the environment and to diminish the need
for the extraction of natural resources, Ross Video encourages you to use the appropriate take-back
systems. These systems will reuse or recycle most of the materials from your end-of-life equipment
in an environmentally friendly and health conscious manner.
The crossed-out wheeled bin symbol invites you to use these systems.
If you need more information on the collection, reuse, and recycling systems, please contact your
local or regional waste administration. You can also contact Ross Video for more information on the
environmental performances of our products.
Security and Privacy
If you would like more information on how Ross Video security and privacy practices have been
applied to the SFC-6901, what you should know about maintaining security of this product, and how
we can partner with you to ensure security throughout this product's life-cycle, contact
[email protected].
Ross Video has implemented reasonable administrative, technical, and physical safeguards to help
protect against security incidents and privacy breaches involving a Ross Video product provided
those products are used in accordance with Ross Video instructions for use. However, as systems
and threats evolve, no system can be protected against all vulnerabilities and we consider our
customers the most important partner in maintaining security and privacy safeguards. If you have
any concerns, we ask that you bring them to our attention, and we will investigate. Where
appropriate, we will address the issue with product changes, technical bulletins and/or responsible
disclosures to customers and regulators. Ross Video continuously strives to improve security and
privacy throughout the product life-cycle using practices such as:
• Privacy and Security by Design
• Product and Supplier Risk Assessment
• Vulnerability and Patch Management
• Secure Coding Practices and Analysis
• Vulnerability Scanning
• Access Controls appropriate to Customer Data
• Incident Response
• Clear paths for two-way communication between customers and Ross Video

If you would like to report a potential product related privacy or security issue (incident, breach, or
vulnerability), contact [e-mail].
Company Address
Ross Video Limited Ross Video Incorporated
8 John Street P.O. Box 880
Iroquois, Ontario, K0E 1K0 Ogdensburg, New York
Canada USA 13669-0880
General Business Office: (+1) 613 • 652 • 4886
Fax: (+1) 613 • 652 • 4425
Technical Support: (+1) 613 • 652 • 4886
After Hours Emergency: (+1) 613 • 349 • 0006
E-mail (Technical Support): [email protected]
E-mail (General Information): [email protected]
Website: http://www.rossvideo.com

SFC-6901 User Guide (v1.0) Contents • i
Contents
Introduction 9
Related Publications ...................................................................................................................................9
Documentation Conventions .....................................................................................................................9
Interface Elements ....................................................................................................................................9
User Entered Text .................................................................................................................................. 10
Referenced Guides ................................................................................................................................ 10
Menu Sequences ................................................................................................................................... 10
Important Instructions .......................................................................................................................... 10
Contacting Technical Support ................................................................................................................. 10
Before You Begin 11
Overview .................................................................................................................................................... 11
Features ..................................................................................................................................................... 11
Gearbox Overview .................................................................................................................................... 12
What is 2SI Sampling? ........................................................................................................................... 12
Hardware Overview 13
Overview .................................................................................................................................................... 13
Main PCB ................................................................................................................................................ 13
Connections on the Rear Module ........................................................................................................... 14
Physical Installation 15
Before You Begin ...................................................................................................................................... 15
Working with Fiber Optic Connectors ................................................................................................... 15
Removing the Blank Plates from the Rear Panel .................................................................................. 16
Installing the Rear Module into the openGear Frame ......................................................................... 16
Installing the SFC-6901 Card into an openGear Frame ....................................................................... 16
Gearbox Cabling 19
Cabling the SFC-6901 for a De-multiplexing Mode .............................................................................. 19
Physical Cabling ..................................................................................................................................... 19
Cabling the SFC-6901 for a Multiplexing Mode .................................................................................... 19
Physical Cabling ..................................................................................................................................... 20
Getting Started 21
Launching DashBoard ............................................................................................................................. 21
Accessing the SFC-6901 Interfaces in DashBoard ................................................................................ 21
Gearbox Setup 23
Before You Begin ................................................................................................................................... 23
Configuring the SFC-6901 for De-multiplexing ..................................................................................... 23
Configuring the SFC-6901 for Multiplexing ........................................................................................... 24
Bypassing the Gearbox 27
Overview .................................................................................................................................................... 27

ii • Contents SFC-6901 User Guide (v1.0)
Upgrading the Software 29
DashBoard Menus 31
Signal Tab .................................................................................................................................................. 31
Product Tab ............................................................................................................................................... 32
Hardware Tab ........................................................................................................................................... 32
Configuration Tab ..................................................................................................................................... 33
Alarms Tab ................................................................................................................................................ 34
Settings Tab ............................................................................................................................................... 35
Technical Specifications 37
Supported Video Formats ....................................................................................................................... 37
SDI Inputs Specifications ......................................................................................................................... 37
SDI Outputs Specifications ...................................................................................................................... 38
Environment ............................................................................................................................................. 39
Power ......................................................................................................................................................... 39
Supported SFP Modules 41
SFP-FIBER-12G .......................................................................................................................................... 41
Features .................................................................................................................................................. 41
Simplified Block Diagram ...................................................................................................................... 41
Technical Specifications ........................................................................................................................ 41
Physical Channel Position ..................................................................................................................... 43
SFP-FIBER-12G-2R ..................................................................................................................................... 43
Features .................................................................................................................................................. 43
Simplified Block Diagram ...................................................................................................................... 43
Technical Specifications ........................................................................................................................ 44
Physical Channel Position ..................................................................................................................... 45
SFP-FIBER-12G-2T ..................................................................................................................................... 45
Features .................................................................................................................................................. 45
Simplified Block Diagram ...................................................................................................................... 45
Technical Specifications ........................................................................................................................ 46
Physical Channel Position ..................................................................................................................... 47
Service Information 49
Troubleshooting Checklist ....................................................................................................................... 49
Bootload Button .................................................................................................................................... 49
Warranty and Repair Policy ..................................................................................................................... 49
Software Licenses 51
BSD ............................................................................................................................................................. 51
Dual GPL .................................................................................................................................................... 51
GPL ............................................................................................................................................................. 51
LGPL ........................................................................................................................................................... 56
MIT .............................................................................................................................................................. 57
zlib .............................................................................................................................................................. 57
Glossary 59

SFC-6901 User Guide (v1.0) Introduction • 9
Introduction
This guide covers the installation, configuration, and use of the SFC-6901 SDI to Fiber I/O Converter.
The following chapters are included:
•“Introduction” summarizes the guide and provides important terms, and conventions.
• “Before You Begin” provides general information to keep in mind before installing and
configuring your card.
• “Hardware Overview” provides a basic introduction to the hardware features including the
cabling and monitoring features of the rear module.
• “Physical Installation” provides instructions for the physical installation of the card and its rear
module.
• “Gearbox Cabling” outlines how to cable the SFC-6901 when using the default input and output
Gearbox mapping.
• “Getting Started” provides a general overview of navigating the SFC-6901 interfaces in
DashBoard.
• “Gearbox Setup” outlines how to specify the SFC-6901 Gearbox mode.
• “Bypassing the Gearbox” outlines how to bypass the gearbox mode and the options for
mapping the inputs and outputs.
• “Upgrading the Software” provides instructions for upgrading the software for your SFC-6901
using DashBoard.
• “DashBoard Menus” summarizes the SFC-6901 menus, items, and parameters in DashBoard.
• “Technical Specifications” provides the technical specifications for the SFC-6901.
• “Supported SFP Modules” outlines on the warranty and repair policies for your SFC-6901.
• “Service Information” outlines on the warranty and repair policies for your SFC-6901.
• “Software Licenses” provides the third-party software license information for your SFC-6901.
• “Glossary” provides a list of terms used throughout this guide.
Related Publications
It is recommended to consult the following Ross documentation before installing and configuring
your card:
•DashBoard User Guide, Ross Part Number: 8351DR-004
•MFC-OG3-N and MFC-8322-S User Guide, Ross Part Number: 8322DR-004
•OGX-FR Series User Guide, Ross Part Number: 8322DR-204
Documentation Conventions
Special text formats are used in this guide to identify parts of the user interface, text that a user
must enter, or a sequence of menus and sub-menus that must be followed to reach a particular
command.
Interface Elements
Bold text is used to identify a user interface element such as a dialog box, menu item, or button. For
example:
In the Network tab, click Apply.

10 • Introduction SFC-6901 User Guide (v1.0)
User Entered Text
Courier text is used to identify text that a user must enter. For example:
In the Language box, enter English.
Referenced Guides
Text set in bold and italic represent the titles of referenced guides, manuals, or documents. For
example:
For more information, refer to the DashBoard User Manual.
Menu Sequences
Menu arrows are used in procedures to identify a sequence of menu items that you must follow.
For example, if a step reads “File > Save As,” you would click the File menu and then click Save As.
Important Instructions
Star icons are used to identify important instructions or features. For example:
Contact your IT department before connecting to your facility network to ensure that there are
no conflicts. They will provide you with an appropriate value for the IP Address, Subnet Mask, and
Gateway for your device.
Contacting Technical Support
At Ross Video, we take pride in the quality of our products, but if problems occur, help is as close as
the nearest telephone.
Our 24-hour Hot Line service ensures you have access to technical expertise around the clock.
After-sales service and technical support is provided directly by Ross Video personnel. During
business hours (Eastern Time), technical support personnel are available by telephone. After hours
and on weekends, a direct emergency technical support phone line is available. If the technical
support person who is on call does not answer this line immediately, a voice message can be left
and the call will be returned shortly. This team of highly trained staff is available to react to any
problem and to do whatever is necessary to ensure customer satisfaction.
•Technical Support: ([phone]
•After Hours Emergency: ([phone]
•E-mail: [email protected]
•Website: http://www.rossvideo.com

SFC-6901 User Guide (v1.0) Before You Begin • 11
Before You Begin
If you have questions pertaining to the operation of your card, contact us at the numbers listed in
“Contacting Technical Support”. Our technical staff is always available for consultation, training,
or service.
Overview
The SFC-6901 is a high-quality multi-channel UHD SDI conversion solution within the openGear
family. The SFC-6901 includes a gearbox feature that enables the multiplex and demultiplex of up to
4, co-timed and same format HD/3G signals into a 6G or 12G signal to reduce fiber cabling
requirements. Each individual muxed signal preserves all of the VANC/HANC space and all full
recovery of the audio and metadata.
Figure 1 SFC-6901 — Simplified Block Diagram
Features
The following features are standard for the SFC-6901:
• HD/3G/UHD SDI support
• 4 x UHD Fiber in/out and 4x UHD SDI in/out on a single rear module
• 2SI gearbox allowing MUX/DMX of up to 4 genlocked SDI signals over a single fiber
• Reports status and configuration remotely via the DashBoard Control System
• 5-year transferable warranty
12G
SDI
FIBER
12G
SDI
FIBER
12G SDI
BI-DIR
12G SDI
BI-DIR
12G SDI
BI-DIR
12G SDI
BI-DIR
GEARBOX
SDI
RECEIVER
INPUT
SWITCHING
GEARBOX
SDI
TRANSMITTER
OUTPUT
SWITCHING
SFP
4 X 12G Tx
SFP
12G Tx/Rx
SFP
4 X 12G Rx

12 • Before You Begin SFC-6901 User Guide (v1.0)
Gearbox Overview
A Gearbox is a group of consecutive inputs or consecutive outputs that are automatically grouped
together by the SFC-6901. For example:
• When you set the Gearbox Mode to DEMUX SL 6G -> QL 1.5G, the SFC-6901 processes a
single-link 5.94Gbps signal into four 1.485Gbps signals. Each 1.485Gbps signal is automatically
assigned to an output on the SFC-6901.
• When you set the Gearbox Mode to MUX QL 1.5G -> SL 6G, four 1.485Gbps input signals are
muxed into a single-link 5.94Gbps output signal, the SFC-6901 multiplexes the signals of four
1.485Gbps signals into a 5.94Gbps signal. This 5.94Gbps signal is automatically assigned to an
output on the SFC-6901.
What is 2SI Sampling?
The SFC-6901 supports the 2 Sample Interleave (2SI) method where four sub-images (1-4) are used
to alternate sampling every 2 pixels and every line. This method is defined in all UHDTV
specifications.
Figure 2 Representation of 2SI Sampling
Image

SFC-6901 User Guide (v1.0) Hardware Overview • 13
Hardware Overview
This chapter presents information on the SFC-6901 hardware components and features.
Overview
The SFC-6901 is an openGear modular system composed of two sub-systems.
• a main PCB which connects to the rear module and the openGear frame midplane
• a daughter card which connects to the main PCB and the rear module
• a rear module (P/N 8322AR-335) that provides physical connectors
Main PCB
The main PCB is a typical openGear card. An ejector on one end secures the card to the slot inside
the openGear frame, and the other end inserts into a connector on the back of the rear module.
The rear module daughter card (on the rear module) inserts into a connector on the main PCB.
Figure 3 SFC-6901 Card with Rear Module
PWR LED
Table 1 provides information on the PWR LED display.
Only the PWR LED is implemented at this time.
Notice — Installing the SFC-6901 in a frame other than the OG3-FR or OGX-FR could damage the
card, the rear module, or both.
Notice — Ensure the main PCB and the daughter card are correctly installed and fully connected to the
rear module.
Table 1 SFC-6901 PWR LED Description
LED Color Description
PWR Green The card is powered on and is operating correctly
Flashing The card software is updating
Red When lit red, this LED indicates:
• the card is booting, or
• a major alarm condition is occurring on the card
Off The card is not powered on
Rear ModuleMain PCBBOOTLOAD Button Daughter Card
PWR LED

14 • Hardware Overview SFC-6901 User Guide (v1.0)
BOOTLOAD Button
This button is used for factory service in the unlikely event of a complete card failure. Do not use
this button unless advised by Ross Video Technical Support.
Connections on the Rear Module
The SFC-6901 requires the 8322AR-335 rear module. Each rear module occupies two slots in the
openGear frame and accommodates one SFC-6901 card. Figure 4 represents the implemented
cabling designations.
Figure 4 Cabling Designations
The signal direction is set in DashBoard set by the Gearbox Mode. Refer to “Gearbox Setup” for
details.
DA
1B
1A
SFC-6901
2B
2A

SFC-6901 User Guide (v1.0) Physical Installation • 15
Physical Installation
Installing an SFC-6901 card into an OG3-FR or OGX-FR series frame requires you to remove the
blank plates in the designation frame slots, install the required rear module into the frame rear
panel, and then install the SFC-6901 card into the required frame slot.
If you have questions pertaining to the installation of your card, contact us at the numbers listed in
“Contacting Technical Support”. Our technical staff is always available for consultation, training,
or service.
Before You Begin
These installation guidelines assume the openGear frame is properly installed. Refer to the User
Guide for your frame.
Static Discharge
Throughout this chapter, please heed the following cautionary note:
Working with Fiber Optic Connectors
The SFC-6901 supports up to two optical Small Form-factor Pluggable (SFP) modules. Keep the
following in mind when working with fiber optic connectors:
• Every time you are required to insert a connector into a device or mating sleeve, you must clean
the connector. All exposed surfaces of the ceramic ferrule must be clean. Follow your facility
practices of cleaning fiber optic connectors.
• Connectors must always be inserted into a device or have a dust cap on.
• A poor optical connection is often similar to a poor electrical connection. Try removing the
connector, cleaning, and re-inserting the connector. A bad connection can result in experiencing
instability of signal, high loss, or a noisy signal.
ESD Susceptibility — Static discharge can cause serious damage to sensitive semiconductor
devices. Avoid handling circuit boards in high static environments such as carpeted areas and when
synthetic fiber clothing is worn. Always exercise proper grounding precautions when working on circuit
boards and related equipment.
Caution — Every time you are required to insert a connector into a device or mating sleeve, you must
clean the connector. All exposed surfaces of the ceramic ferrule must be clean. Follow your facility
practices of cleaning fiber optic connectors. Connectors must always be inserted into a device or have a
dust cap on.
Caution — Never attempt to look down the barrel of a connected fiber or device transmitting an optical
signal. The transmitted light is not in the visible spectrum and may cause permanent eye damage. Turn
off all laser sources before disconnecting devices.

16 • Physical Installation SFC-6901 User Guide (v1.0)
Removing the Blank Plates from the Rear Panel
When a frame slot is not populated with an openGear card, a blank plate must be installed to
ensure proper frame cooling and ventilation. Before installing the rear module, you must remove
the blank plate covering the required slots.
A Phillips screwdriver is required for this procedure.
To remove a blank plate from the openGear frame
1. Locate the slots in the openGear frame you wish to install the SFC-6901 into. It is recommended
to use the following slot combinations:
2. Use a Phillips screwdriver to unfasten each blank plate from the openGear frame backplane.
3. Remove each blank plate from the chassis and set aside.
Installing the Rear Module into the openGear Frame
A Phillips screwdriver is required for this procedure.
To install a rear module into the openGear frame
1. For each retaining screw on the rear module, push the o-ring to the end of the screw (but not
off the screw). This will help to align the rear module to the frame backplane in step 3.
2. Seat the bottom of the rear module in the seating slots at the base of the openGear frame’s
backplane.
3. Align the top holes of the rear module with the screw holes on the top-edge of the frame
backplane.
4. Using a Phillips screwdriver and the provided screw, fasten the rear module to the backplane.
Do not fully tighten the screws until after installing the card and you have verified that the
SFC-6901 card aligns with the rear module.
Installing the SFC-6901 Card into an openGear Frame
The slot that the SFC-6901 installs into depends on the slot combination you installed the rear
module in. This allows adequate spacing to avoid damaging the card, the cards installed in the
neighboring slots, or both.
A Phillips screwdriver is required for this procedure.
To install the SFC-6901 into the openGear frame
1. Locate the slot the SFC-6901 card will slide into.
Refer to Table 2 for valid slot combinations.
Notice — Installing the rear modules in a frame other than an OG3-FR or OGX-FR could damage the
card, the rear module, or both.
• Slots 1, 2 • Slots 7, 8 • Slots 13, 14 • Slots 19, 20
• Slots 3, 4 • Slots 9, 10 • Slots 15, 16
• Slots 5, 6 • Slots 11, 12 • Slots 17, 18

SFC-6901 User Guide (v1.0) Physical Installation • 17
2. Verify that the SFC-6901 card aligns with the rear module.
3. Hold the card by the edges and carefully align the card edges with the slot rails in the frame.
4. Fully insert the card into the frame until the card is fully seated in the rear module.
Verify that the main card is seated correctly in its frame slot and is fully mated to its rear module.
Table 2 Card Slot Combinations
Rear Module is Installed in Card Installs into Slot
Slots 1, 2 2
Slots 3, 4 4
Slots 5, 6 6
Slots 7, 8 8
Slots 9, 10 10
Slots 11, 12 12
Slots 13, 14 14
Slots 15, 16 16
Slots 17, 18 18
Slots 19, 20 20

18 • Physical Installation SFC-6901 User Guide (v1.0)

SFC-6901 User Guide (v1.0) Gearbox Cabling • 19
Gearbox Cabling
This chapter outlines how to cable the SFC-6901 for using the default input and output mapping.
The I/O designation of each SFP port is automatically detected when the port is populated. The
designation cannot be edited (and is read-only).
For More Information on...
• configuring the SFC-6901 in DashBoard, refer to “Gearbox Setup”.
• customizing the inputs and outputs for your Gearbox setup, refer to “Bypassing the Gearbox”.
Cabling the SFC-6901 for a De-multiplexing Mode
Table 3 outlines the default input and outputs when selecting a DEMUX mode in DashBoard.
Physical Cabling
All SDI input sources should be genlocked to a common reference when in Gearbox mode.
1. Set up a connection between the SFC-6901 and the external device that will transmit the signal
to be de-multiplexed by the SFC-6901.
2. Make a note of the physical INPUT port on the SFC-6901 rear module that will receive the SDI
signal. Refer to Table 3 for default I/O mapping.
3. Setup a connection between the SFC-6901 and the external device(s) that will receive the
de-multiplexed signals.
4. Make a note of the physical OUTPUT ports on the rear module that will send the signals to the
device in step 3. Refer to Table 3 for the default I/O mapping.
Cabling the SFC-6901 for a Multiplexing Mode
Table 4 outlines the default SDI input and outputs when selecting a MUX mode in DashBoard.
Table 3 Gearbox DEMUX Modes — Default I/O Mapping
Mode Input Output 1 Output 2 Output 3 Output 4
SL 6G -> QL 1.5G SFP 1A SDI 1 SDI 2 SDI 3 SDI 4
SL 12G -> QL 3G SFP 1A SDI 1 SDI 2 SDI 3 SDI 4
Table 4 Gearbox MUX Modes — Default I/O Mapping
Mode Output Input 1 Input 2 Input 3 Input 4
QL 1.5G -> SL 6G SFP 1B SDI 1 SDI 2 SDI 3 SDI 4
QL 3G -> SL 12G SFP 1B SDI 1 SDI 2 SDI 3 SDI 4

20 • Gearbox Cabling SFC-6901 User Guide (v1.0)
Physical Cabling
1. Set up a connection between the external device that will provide the multiple input signals and
the SFC-6901.
2. Make a note of the physical INPUT ports on the SFC-6901 rear module that will receive the SDI
signals if it differs from Table 4.
3. Set up a connection between the SFC-6901 and the external device that will receive the
multiplexed signal.
4. Make a note of the physical OUTPUT port on the SFC-6901 rear module that will transmit the
multiplexed signal to the external device in step 3.