Curtiss-Wright FibreXtreme SL100 Application guide


SL100/SL240
Hardware Reference
for PCI and PMC Cards
Document No. DDOC0076-000-AN
F-T-MR-S2PCIPMC-A-0-AN

FOREWORD
The information in this document has been carefully checked and is believed to be
accurate; however, no responsibility is assumed for inaccuracies. Curtiss-Wright
Controls, Inc. reserves the right to make changes without notice.
Curtiss-Wright Controls, Inc. makes no warranty of any kind with regard to this printed
material, including, but not limited to, the implied warranties of merchantability and
fitness for a particular purpose.
©Copyright 2017 Curtiss-Wright Controls, Inc. All rights reserved.
SL100/SL240 Dual-Port Memory FIFO U.S. Patent #6,259,648.
All Curtiss-Wright Control LinkXchange products referred to in this document are
protected by one or both of the following U.S. patents 6,751,699 and 5,982,634.
® is a registered trademark of Curtiss-Wright Controls, Inc.
®
is a registered trademark of Curtiss-Wright Controls, Inc.
® is a registered trademark of Curtiss-Wright Controls, Inc.
Date
Change Summery
Pg.
Rev. Number
07/05/17
Addition of SL100 5volt Rugged card, 33MHz (PCN 1202)
2-3,4,5,
12.
5-2, 8-1
AM
10/02/17
Rugged Level 2 SL100 CCPMC, removed
SL100 PCI 60MHz option, removed
SL240 PCI 120MHz option, removed
SL240 PMC Regged 2 changed to Rugged 1
8-1
8-2
8-2
AN
Any reference made within this document to equipment from other vendors does not
constitute an endorsement of their product(s).
Revised: October 2, 2017
Curtiss-Wright Controls, Inc.
Defense Solutions
2600 Paramount Place Suite 200
Fairborn OH 45324-6763 USA
Tel: [phone](U.S. only)
Tel: [phone]

FCC
This product is intended for use in industrial, laboratory, or military environments. This
product uses and emits electromagnetic radiation, which may interfere with other radio
and communication devices. The user may be in violation of FCC regulations if this
device is used in other than the intended market environments.
CE
As a component part of another system, this information technology product has no direct
function and is therefore not subject to applicable European Union directives for
Information Technology equipment.

Copyright 2017 i FibreXtreme Hardware Reference
TABLE OF CONTENTS
1. INTRODUCTION .....................................................................................................................1-1
1.1 How to Use This Manual ...........................................................................................1-1
1.1.1 Purpose .....................................................................................................1-1
1.1.2 Scope ........................................................................................................1-1
1.1.3 Style Conventions .....................................................................................1-2
1.2 Related Information ...................................................................................................1-2
1.3 Quality Assurance ......................................................................................................1-3
1.4 Technical Support ......................................................................................................1-4
1.5 Ordering Process ........................................................................................................1-4
2. PRODUCT OVERVIEW ...........................................................................................................2-1
2.1 Overview ...................................................................................................................2-1
2.2 SL240 Features ..........................................................................................................2-4
2.2.1 SFF Media Options ...................................................................................2-5
2.2.2 SFP Media Options ...................................................................................2-5
2.4 Applications ...............................................................................................................2-6
2.4.1 LinkXchange GLX4000 Physical Layer Switch ......................................2-6
2.4.2 Typical Digital Signal Processing (DSP) Imaging System .......................2-7
2.4.3 Extending FPDP .......................................................................................2-7
2.5 Topologies .................................................................................................................2-8
2.5.1 Typical Topologies ...................................................................................2-8
2.5.2 Point-to-point ............................................................................................2-8
2.5.3 Chained .....................................................................................................2-9
2.5.4 Single Master Ring .................................................................................2-10
2.5.5 Multiple Master Ring .............................................................................2-11
2.6 Status LEDs .............................................................................................................2-12
2.6.1 LED Description for SL100 and SL240 33MHz Cards ..........................2-12
2.6.2 LED Description for SL240 66MHz Cards ............................................2-13
3. INSTALLATION.......................................................................................................................3-1
3.1 Overview ...................................................................................................................3-1
3.2 Unpack the Cards .......................................................................................................3-1
3.3 Inspect the Cards ........................................................................................................3-1
3.4 Configure the SL240 Card .........................................................................................3-1
3.4.1 Installing SFP Modules ............................................................................3-1
3.5 Install the Cards .........................................................................................................3-2
3.5.1 SL240 PCI Card .......................................................................................3-2
3.5.2 SL240 PMC Card .....................................................................................3-3
3.6 Connect the Cables ....................................................................................................3-4
3.6.1 Transmission Media .................................................................................3-4
3.6.2 Fiber-Optic Cables ....................................................................................3-4
3.6.3 HSSDC2 Copper Cables ...........................................................................3-5
3.7 Troubleshooting .........................................................................................................3-6
4. OPERATION .............................................................................................................................4-1
4.1 Overview ...................................................................................................................4-1
4.2 Theory of Operation...................................................................................................4-1
4.2.1 Receive Operation ....................................................................................4-1
4.2.2 Transmit Operation ...................................................................................4-2
4.2.3 Loop Operation .........................................................................................4-2
4.4 Data Synchronization .................................................................................................4-4
4.5 Configuration Options ...............................................................................................4-4

Copyright 2017 ii FibreXtreme Hardware Reference
4.5.1 Flow Control .............................................................................................4-4
4.5.2 Loop Enable .............................................................................................4-4
4.5.3 CRC Generation/Checking .......................................................................4-5
4.5.4 Stop on Link Error or /SYNC ...................................................................4-5
4.5.5 Receive FIFO Threshold Interrupt ............................................................4-5
5. APPENDIX A - SPECIFICATIONS .........................................................................................5-1
5.1 Specifications .............................................................................................................5-1
5.1.1 33 MHz PCI Specifications ......................................................................5-1
5.1.2 33 MHz PMC Specifications ....................................................................5-2
5.1.3 66 MHz PCI Specifications ......................................................................5-3
5.1.4 66 MHz PMC Specifications ....................................................................5-3
5.1.5 66 MHz CCPMC Specifications (Conduction-Cooled Rugged Level 2) .5-4
5.2 Ruggedized PMC Environmental Specifications .......................................................5-5
5.2.1 Rugged Level 2.........................................................................................5-5
5.3 Media Interface Specifications ..................................................................................5-6
5.3.1 SL100 Fibre-Optic Media Interface Specifications ..................................5-6
5.3.2 SL240 Fibre-Optic Media Interface Specifications ..................................5-7
5.3.3 HSSDC2 Copper Media Interface: 1.0625 Gbps ......................................5-7
5.3.4 HSSDC2 Copper Media Interface: 2.5 Gbps ............................................5-7
5.3.5 SL100 Fibre-Optic Media with 60 MHz Clock Option ............................5-7
5.3.6 SL240 Fibre-Optic Media with 120 MHz Clock Option ..........................5-7
6. APPENDIX B - REGISTER SET ..............................................................................................6-1
6.1 Overview ...................................................................................................................6-1
6.2 Accessible resources ..................................................................................................6-1
6.3 PCI Configuration registers .......................................................................................6-1
6.4 Runtime Register set ..................................................................................................6-1
6.4.1 Bit Definitions ..........................................................................................6-1
6.4.2 Interrupt CSR (INT_CSR) – Offset 0x00 .................................................6-3
6.4.3 Board CSR (BRD_CSR) – Offset 0x04 ....................................................6-4
6.4.4 Link Control (LINK_CTL) – Offset 0x08 ................................................6-5
6.4.5 Link Status (LINK_STAT) – Offset 0x0C ...............................................6-8
6.4.6 FPDP Flags (FPDP_FLGS) – Offset 0x10 ...............................................6-9
6.4.7 Receive FIFO Threshold – Offset 0x14 .................................................6-10
6.4.8 Laser Transmitter Control – Offset 0x18 ................................................6-10
6.4.9 Transaction Channel 0 (Send Channel) ..................................................6-11
6.4.10 Transaction Channel 1 (Receive Channel) ...........................................6-14
7. APPENDIX C - SL100/SL240 PROTOCOL .............................................................................7-1
7.1 Overview ...................................................................................................................7-1
7.2 Ordered Sets Used .....................................................................................................7-1
7.3 Frames .......................................................................................................................7-3
7.3.1 Link Bandwidth ........................................................................................7-4
7.3.2 FPDP Signal Sample Rate ........................................................................7-4
7.4 Data Transmission and Flow Control ........................................................................7-5
8. APPENDIX D - ORDERING INFORMATION .......................................................................8-1
8.1 Overview ...................................................................................................................8-1
8.2 Ordering Information .................................................................................................8-1
8.2.1 33 MHz SL100 PMC Ordering Information.............................................8-1
8.2.2 33 MHz SL100 PCI Ordering Information ...............................................8-1
8.2.3 66 MHz SL100 PMC Ordering Information.............................................8-1
8.2.4 66 MHz SL100 PCI Ordering Information ...............................................8-1
8.2.5 SL100 FPDP Ordering Information ..........................................................8-2
8.2.6 33 MHz SL240 PMC Ordering Information.............................................8-2
8.2.7 33 MHz SL240 PCI Ordering Information ...............................................8-2
8.2.8 66 MHz SL240 PMC Ordering Information.............................................8-2

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8.2.9 66 MHz SL240 PCI Ordering Information ...............................................8-2
8.2.10 SL240 FPDP Ordering Information ........................................................8-2
8.2.11 Short Wavelength: Multimode Fiber-Optic Cables ................................8-3
8.2.12 Long Wavelength: Single-mode Fiber-Optic Cables ..............................8-4
8.2.13 HSSDC2 Copper Media Interface: 1.0625 Gbps ....................................8-5
8.2.14 HSSDC2 Copper Media Interface: 2.5 Gbps ..........................................8-5
9. APPENDIX E - FPDP PRIMER ................................................................................................9-1
9.1 FPDP Overview .........................................................................................................9-1
9.2 Terminology ..............................................................................................................9-3
9.3 Parallel FPDP Theory of Operation ...........................................................................9-3
9.3.1 Clock Signals ............................................................................................9-3
9.3.2 Data Framing ............................................................................................9-4
9.4 Serial FPDP Theory of Operation ..............................................................................9-5
9.5 Parallel FPDP Signal Timing .....................................................................................9-6
10. INDEX ...................................................................................................................................10-1
FIGURES
Figure 2-1 SL240 PCI 66 MHz Card .............................................................................................2-1
Figure 2-2 SL240 PMC 66 MHz Card ...........................................................................................2-2
Figure 2-3 SL240 PMC Rugged Conduction-Cooled Card (CCPMC) ..........................................2-2
Figure 2-4 SL240 PCI 33 MHz Card .............................................................................................2-3
Figure 2-5 SL100 PMC 5 Volt 33 MHz Rugged Card ...................................................................2-3
Figure 2-6 SL240 PMC 33 MHz Card ...........................................................................................2-4
Figure 2-7 SFP Transceiver Module ..............................................................................................2-5
Figure 2-8 Typical Applications of FibreXtreme SL240 in Advanced DSP Systems....................2-7
Figure 2-9 FibreXtreme SL240 Extending FPDP ..........................................................................2-8
Figure 2-10 Point-to-Point Topology .............................................................................................2-9
Figure 2-11 Chained Topology ......................................................................................................2-9
Figure 2-12 Single Master Ring ...................................................................................................2-10
Figure 2-13 Multiple Master Ring ...............................................................................................2-11
Figure 2-14 SL100 5 Volt PMC and SL240 PMC 33MHz ..........................................................2-12
Figure 2-15 SL240 PCI 33MHz ...................................................................................................2-12
Figure 2-16 SL240 PMC 66MHz .................................................................................................2-13
Figure 2-17 SL240 PCI 66MHz ...................................................................................................2-13
Figure 3-1 SL240 PCI Card Installation ........................................................................................3-2
Figure 3-2 SL240 PMC Card Installation ......................................................................................3-3
Figure 3-3 Fiber-optic Simplex LC Connector ..............................................................................3-4
Figure 3-4 Fiber-optic Duplex LC Connector ................................................................................3-4
Figure 3-5 HSSDC2 Copper Connector .........................................................................................3-5
Figure 3-6 HSSDC2 Receptacle Contact Pin Locations ................................................................3-5
Figure 7-1 VITA 17.1 Framing Protocol .......................................................................................7-3
Figure 9-1 Example Configuration With Multiple VME FPDP Cards Connected ........................9-2
Figure 9-2 Parallel FPDP Interface Timing Diagram.....................................................................9-7
Figure 9-3 FPDP Timing Diagrams Showing the Use of Framing ................................................9-8

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Copyright 2017 1-1 FibreXtreme Hardware Reference
1. INTRODUCTION
1.1 How to Use This Manual
1.1.1 Purpose
This manual introduces the FibreXtreme SL100/SL240 family of products, and provides
guidance through the process of unpacking, setting up, and programming the cards.
NOTE: Both the FibreXtreme SL100 and SL240 hardware are referred to throughout
this manual as SL240. The software that supports both the SL100 and SL240 hardware
is referred to as SL240, including the driver and API. Anything that is exclusive to the
SL100 or the SL240 is described as such.
1.1.2 Scope
This manual contains the following information:
An introduction to FibreXtreme SL240.
Applications and topologies for SL240 boards.
Instructions for installing and configuring the card.
An operational overview of the product.
General card specifications.
Register set information.
Programming information.
Summary of the protocol used by the SL240 boards.
Ordering information for all products mentioned in this manual.
A brief introduction to the Front Panel Data Port (FPDP) interface.
Definitions of words, phrases, and terms used in this manual.
List of key words referenced in this manual.
The information in this manual is intended for information systems personnel, system
coordinators, or highly skilled network users with at least a systems-level understanding
of general computer processing, memory, and hardware operation.

INTRODUCTION
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1.1.3 Style Conventions
Called functions are italicized. For example, OpenConnect().
Data types are italicized. For example, int.
Function parameters are bolded. For example, Action.
Path names are italicized. For example, utility/sw/cfg.
File names are bolded. For example, config.c.
Path file names are italicized and bolded. For example, utility/sw/cfg/config.c.
Hexadecimal values are written with a “0x” prefix. For example, 0x7e.
For signals on hardware products, an ‘Active Low’ is represented by prefixing
the signal name with a slash (/). For example, /SYNC.
Code and monitor screen displays of input and output are boxed and indented on
a separate line. Text that represents user input is bolded. Text that the computer
displays on the screen is not bolded. For example:
C:\>ls
file1 file2 file3
Large samples of code are Courier font, at least one size less than context, and
are usually on a separate page or in an appendix.
1.2 Related Information
ANSI Z136.2-1988 American National Standard for the Safe Use of Optical Fiber
Communication Systems Using Laser Diode and LED Sources.
Draft Standard for a Common Mezzanine Card Family: CMC; IEEE P1386,
Draft 2.0, April 4, 1995.
Draft Standard Physical and Environmental Layers for PCI Mezzanine Cards:
PMC, IEEE P1386.1 2.0, April 4, 1995.
Fibre Channel Association Product Information Bulletin Revision, December 9,
1994.
Fibre Channel Physical and Signaling Interface (FC-PH), Revision 4.3, June 1,
1994; Produced by the ANSI X3T9.3 standards group.
Fibre Channel Physical and Signaling Interface-2 (FC-PH-2), Revision 7.3,
January 5, 1996; Produced by the ANSI X3T11 standards group.
Fibre Channel Physical and Signaling Interface-3 (FC-PH-3), Revision 8.6,
April, 1996; Produced by the ANSI X3T11 standards group.
Front Panel Data Port Specifications, ANSI/VITA 17-1998, Revision 1.0;
February 11, 1999. Produced by the VITA Standards Organization.
IEC 825-1984 Radiation Safety of Laser Products, Equipment Classification,
Requirements, and User’s Guide, 2 parts, 1993.
LinkXchange GLX4000 Physical Layer Switch User Reference Manual
(Doc. No. F-T-MR-L5XL144), Curtiss-Wright Controls, Inc.
PCI Local Bus Specification, Revision 2.1, June 1, 1995; PCI Special Interest
Group.
Small Form-factor Pluggable (SFP) MultiSource Agreement (MSA), September
14, 2000, FO Transceiver Industry
Curtiss-Wright Controls, Inc. – http://www.cwcdefense.com/.
VITA – http://www.vita.com/.

INTRODUCTION
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1.3 Quality Assurance
Curtiss-Wright Controls’ policy is to provide our customers with the highest quality
products and services. In addition to the physical product, the company provides
documentation, sales and marketing support, hardware and software technical support,
and timely product delivery. Our quality commitment begins with product concept, and
continues after receipt of the purchased product.
Curtiss-Wright Controls’ Quality System conforms to the ISO 9001 international standard
for quality systems. ISO 9001 is the model for quality assurance in design, development,
production, installation, and servicing. The ISO 9001 standard addresses all 20 clauses of
the ISO quality system, and is the most comprehensive of the conformance standards.
Our Quality System addresses the following basic objectives:
Achieve, maintain, and continually improve the quality of our products through
established design, test, and production procedures.
Improve the quality of our operations to meet the needs of our customers,
suppliers, and other stakeholders.
Provide our employees with the tools and overall work environment to fulfill,
maintain, and improve product and service quality.
Ensure our customer and other stakeholders that only the highest quality product
or service will be delivered.
The British Standards Institution (BSI), the world’s largest and most respected
standardization authority, assessed Curtiss-Wright Controls’ Quality System. BSI’s
Quality Assurance division certified we meet or exceed all applicable international
standards, and issued Certificate of Registration, number FM 31468, on May 16, 1995.
The scope of Curtiss-Wright Controls’ registration is: “Design, manufacture and service
of high technology hardware and software computer communications products.” The
registration is maintained under BSI QA’s bi-annual quality audit program.
Customer feedback is integral to our quality and reliability program. We encourage
customers to contact us with questions, suggestions, or comments regarding any of our
products or services. We guarantee professional and quick responses to your questions,
comments, or problems.

INTRODUCTION
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1.4 Technical Support
Technical documentation is provided with all of our products. This documentation
describes the technology, its performance characteristics, and includes some typical
applications. It also includes comprehensive support information, designed to answer any
technical questions that might arise concerning the use of this product. We also publish
and distribute technical briefs and application notes that cover a wide assortment of
topics. Although we try to tailor the applications to real scenarios, not all possible
circumstances are covered.
Although we have attempted to make this document comprehensive, you may have
specific problems or issues this document does not satisfactorily cover. Our goal is to
offer a combination of products and services that provide complete, easy-to-use solutions
for your application.
If you have any technical or non-technical questions or comments, contact us. Hours of
operation are from 8:00 a.m. to 5:00 p.m. Eastern Standard/Daylight Time.
 Phone: [phone] or [phone]
E-mail: [e-mail]
Fax: [phone]
World Wide Web address: www. cwcdefense.com
1.5 Ordering Process
To learn more about Curtiss-Wright Controls, Inc. products or to place an order, please
use the following contact information. Hours of operation are from 8:00 a.m. to 5:00 p.m.
Eastern Standard/Daylight Time.
Phone: [phone] or [phone]
E-mail: [e-mail]
World Wide Web address: www. cwcdefense.com

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2. PRODUCT OVERVIEW
2.1 Overview
The FibreXtreme SL240 cards provide fast, low latency point-to-point or broadcast
connections between sensors and processing devices. Curtiss-Wright Controls’ SL240 family
of products includes PCI, PCI Mezzanine (PMC), and Front Panel Data Port (FPDP)
solutions. The FPDP versions are in two categories—a 6U VME- or PCI-based solution with
standard FPDP connectors, and a rehostable Common Mezzanine Card (CMC).
The PCI and PMC versions provide this link via the PCI bus. The PCI bus is used in most
standard PCs, and the PMC format is used in most popular single-board computers. The
FPDP versions of the card provide this interface through a simple unidirectional parallel
port. This port can be connected to existing FPDP equipment or can be integrated into new
products (CMC). All of these variations interoperate completely on the link interface,
providing seamless integration between diverse platforms.
Figure 2-1 SL240 PCI 66 MHz Card

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Figure 2-2 SL240 PMC 66 MHz Card
Figure 2-3 SL240 PMC Rugged Conduction-Cooled Card (CCPMC)

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Figure 2-4 SL240 PCI 33 MHz Card
Figure 2-5 SL100 PMC 5 Volt 33 MHz Rugged Card

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Figure 2-6 SL240 PMC 33 MHz Card
2.2 SL240 Features
SL240 provides reliable point-to-point or broadcast interconnects between systems, with
minimal overhead and very low latency. The protocol involved for this transport is based on
Fibre Channel, though it is not Fibre Channel compliant. The major SL240 features are
listed below:
Uses proven 8B/10B encoding for data transmission.
End-to-end throughput of 247 MB/s with or without frame checksums (SL240).
End-to-end throughput of 105 MB/s with or without frame checksums (SL100).
Minimizes implementation cost and enhances throughput by using a simple
protocol.
Provides built-in data synchronization with very little reduction in throughput.
Integrated interrupt controller to report link failure, transaction completion, or buffer
space request.
Status LED that reports link stability.
Loop operation with out-of-band arbitration or point-to-point operation.
Provides a register set designed for easy programming and status retrieval.
Small Form Factor (SFF) media option available on SL240 Rugged Conduction
Cooled PMC and SL100 5 volt PMC.
Small Form Factor Pluggable (SFP).
SFP media options for long-reach wavelength laser, long wavelength laser, short
wavelength laser, and HSSDC2 copper.
64-bit operation is backward compatible to 32-bit, 33 MHz.
SL240 66 MHz PCI support (3.3 V signaling only) in PCI and PMC form factor.
128 MB Receive FIFO.
1 KB Transmit FIFO.
Ruggedized versions of some cards are available.
Also available with 60 MHz or 120 MHz clocking options.

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2.2.1 SFF Media Options
There is one SFF media option available on the SL240 CCPMC, short wavelength laser
(850nm) and SL100 5 volt PMC. The short wavelength version is useful for intrasystem
connections, such as connecting between cards on the same backplane. It is also suited for
short reach intersystem connections (< = 250 m).
All cards use a Duplex LC style connector available from most major cable manufacturers.
For details concerning these connectors, contact Curtiss-Wright Controls, Inc. Technical
Support.
2.2.2 SFP Media Options
The SFP transceiver modules are hot swappable, providing and efficient way to modify the
media interface configuration as needed.
Four basic SFP media options will be available for the SL240. These media options
include— a long-reach wavelength laser (1550 nm), a long wavelength laser (1300 nm), and
HSSDC2 copper. All cards use a Duplex LC style connector or HSSDC2 receptacle,
available from most major cable manufacturers. Contact Curtiss-Wright Controls for the
latest SFP options available.
Figure 2-7 SFP Transceiver Module
Long wavelength laser interconnections are recommended for distances longer than 300
meters, as loss in multimode fiber degrades connections with short wavelength lasers past
this distance. HSSDC2 interconnections are recommended for very short distances of 30
meters or less.
The short wavelength version is useful for intrasystem connections, when connecting
between cards on the same backplane. It is also suited for short reach intersystem
connections (< 300 m).
The SFP transceivers comply with the Small Form-factor Pluggable transceiver MultiSource
Agreement (SFP MSA) to ensure compatibility between the different transceiver
manufacturers.

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2.4 Applications
SL240 cards are used in a variety of topologies for a variety of applications. The following
sections detail typical topologies used and some applications. Many other applications are
possible in these configurations.
2.4.1 LinkXchange GLX4000 Physical Layer Switch
The GLX4000 Physical Layer Switch is a managed, non-blocking, multipurpose crosspoint
switch for digital signals. Any input can be switched to any one of the144 outputs. The
protocol or structure of the data routed through the GLX4000 switch is ignored and passes
through unaltered. As a result, the GLX4000 can be used with many different types of
networks and signals.
The GLX4000 Physical Layer Switches have the following features:
GLX4000 144 supports up to 144 non-blocking serial I/O ports.
Multiple port card types available for various media and data rates.
RT4000, 48 port 4.25 Gbps Retimed accepts optical and copper media (SFP)
transceiver modules.
RT10000, 12 port 10 Gbps accepts optical and copper media Small Form Factor
Pluggable (XFP) modules.
FW1600, 48 port IEEE 1394b "Firewire" copper media.
ET1000, 48 port auto-negotiation 10, 100, or 1000 Mbps Ethernet with RJ-45
connectors.
Contact Curtiss-Wright Controls for a complete list of available port cards.
Port cards and pluggable transceivers may be mixed in one system.
Supports Loop, Point-to-Point, One-to-Many communication links.
Supports multiple physical media options including short wavelength (850 nm), long
wavelength (1300 nm), and HSSDC2.
Automatic port fault isolation.
Front panel indicators.
“Signal Detect” for each port.
“Transmitter on” for each port.
“Heartbeat”
“Flash WR”
“Alarm”
“Watch Dog”
Out-of-band control through an Ethernet port.
Can be controlled from a remote location.
Dual-redundant hot-swappable power supplies.
Hot-swappable fans.
Hot-pluggable Small Form-factor transceiver modules.
Hot-pluggable port cards.
Multiple temperature monitoring points within the enclosure.
Configuration data stored on a removable CompactFlash card.
Automatic fan speed control based on enclosure temperature.
Fan tachometer monitor.
For detailed information regarding the GLX4000 features and operation, contact
Curtiss-Wright Controls, Inc. and request a copy of the GLX4000 Physical Layer Switch
Hardware Reference Manual or visit our web site.

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2.4.2 Typical Digital Signal Processing (DSP) Imaging System
With the support for 1.0625 Gbps or 2.5 Gbps link transmission rates between
interconnected subsystems, SL240 is ideal for use in many of today’s high-throughput data
transfer applications. Figure 2-8 8 shows one example. This figure shows the SL100’s usable
data throughput rate. However, the figure is also applicable to SL240 by changing the data
throughput rate to 247 MB/s.
PMC
PMC
100 MBps
Sensors
(Scan the Image)
DSP Systems
(Develop the Image)
High Performance
General Purpose Computers
(Analyze the Image)
High Speed Storage
Radar
IR
Sonar
Acoustic
Photon
Video
Etc.
105 MBps
100 MBps
105 MBps
105 MBps
SL100/SL240
Fibre Channel
FULL FC-4 FIBRE CHANNEL IS GOOD FOR STORAGE & WORKSTATION CONNECTIONS
BUT, TOO MUCH OVERHEAD & LATENCY FOR MOST SENSOR CONNECTIONS !
100 MBps
100 MBps
100 MBps
Figure 2-8 Typical Applications of FibreXtreme SL240 in Advanced DSP Systems
2.4.3 Extending FPDP
The maximum allowable length for FPDP cables ranges from 1 m to 5 m depending upon its
configuration. The FibreXtreme SL240 system provides a communication link that extends
the reach of FPDP while retaining simplicity, high bandwidth, and reliability. This concept
is shown in Figure 2-8 8. The type of transceiver used determines the distance the FPDP
cards can be separated. See section 2.2.1, Media Options, for details on transceivers. Using
fiber optics provides electrical isolation.

PRODUCT OVERVIEW
Copyright 2017 2-8 FibreXtreme Hardware Reference
Figure 2-9 FibreXtreme SL240 Extending FPDP
2.5 Topologies
2.5.1 Typical Topologies
There are four typical topologies for the SL240 card. These topologies should cover most
customer applications, though if another topology is desired contact Curtiss-Wright
Controls, Inc. Technical Support to see if it is possible. The topologies are:
Point-to-point
Chained
Single Master Loop
Multiple Master Loop
2.5.2 Point-to-point
The point-to-point topology is the native mode for the SL240 card. One user option available
in this mode is whether flow control is used or not. If flow control is used, the transmitter on
each end will not transmit when the remote receiver is telling it to back off or the receive
fiber is missing. In this mode, the maximum amount of data that can be transferred is 247
MB/s per direction (in this case, both cards are receiving and transmitting 247 MB/s at the
same time). The maximum distance between the nodes is 26 km.
There are many applications for the point-to-point topology—as long as it involves only two
nodes, this topology covers it. One advantage that point-to-point has over the other
topologies is the ability to do simultaneous bi-directional traffic.
ADC DSP
51 km maximum (SL100)
SL240
FPDP FPDP
SL100/SL240
SL240
26 km maximum (SL240)