rtd LAN24550 User manual

RTD Embedded Technologies, Inc.
AS9100 and ISO 9001 Certified
LAN24550/LAN34550
PCI/104-Express Dual 10Gbit/s Twisted Pair Ethernet Controller
User’s Manual
BDM-610020156 Rev. A

RTD Embedded Technologies, Inc.
103 Innovation Boulevard
State College, PA 16803 USA
Telephone: [phone]
Fax: [phone]
www.rtd.com
[email protected]
[email protected]

RTD Embedded Technologies, Inc. | www.rtd.com iii LAN24550/ LAN34550 User’s Manual
Revision History
Rev A Initial Release
Advanced Analog I/O, Advanced Digital I/O, aAIO, aDIO, a2DIO, Autonomous SmartCal, “Catch the Express”, cpuModule, dspFramework, dspModule, expressMate, ExpressPlatform, HiDANplus, “MIL Value for
COTS prices”, multiPort, PlatformBus, and PC/104EZ are trademarks, and “Accessing the Analog World”, dataModule, IDAN, HiDAN, RTD, and the RTD logo are registered trademarks of RTD Embedded
Technologies, Inc (formerly Real Time Devices, Inc.). PS/2 is a trademark of International Business Machines Inc. PCI, PCI Express, and PCIe are trademarks of PCI-SIG. PC/104, PC/104-Plus, PCI-104, PCIe/104,
PCI/104-Express and 104 are trademarks of the PC/104 Embedded Consortium. All other trademarks appearing in this document are the property of their respective owners.
Failure to follow the instructions found in this manual may result in damage to the product described in this manual, or other components of the system. The procedure set forth in this manual shall only be performed
by persons qualified to service electronic equipment. Contents and specifications within this manual are given without warranty, and are subject to change without notice. RTD Embedded Technologies, Inc. shall not
be liable for errors or omissions in this manual, or for any loss, damage, or injury in connection with the use of this manual.
Copyright © 2020 by RTD Embedded Technologies, Inc. All rights reserved.

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Table of Contents
1Introduction 6
Product Overview........................................................................................................................................................................ 6
Board Features ........................................................................................................................................................................... 6
Ordering Information................................................................................................................................................................... 6
Contact Information .................................................................................................................................................................... 7
1.4.1 Sales Support 7
1.4.2 Technical Support 7
2Specifications 8
Operating Conditions .................................................................................................................................................................. 8
Electrical Characteristics ............................................................................................................................................................ 8
3Board Connection 9
Board Handling Precautions ....................................................................................................................................................... 9
Physical Characteristics.............................................................................................................................................................. 9
Connectors and Jumpers.......................................................................................................................................................... 10
3.3.1 External I/O Connectors 10
CN3: RJ45 Connector 10
CN4: RJ45 Connector 10
Link and Activity LEDs 10
3.3.2 Bus Connectors 10
CN16: PCI Connector 10
CN1(Top) & CN2(Bottom): PCIe Connector 10
Steps for Installing .................................................................................................................................................................... 11
4IDAN Connections 12
Module Handling Precautions................................................................................................................................................... 12
Physical Characteristics............................................................................................................................................................ 12
Connectors................................................................................................................................................................................ 13
4.3.1 External I/O Connectors 13
CN3: RJ45 Connector 13
CN4: RJ45 Connector 13
4.3.2 Bus Connectors 13
CN1: PCI Connector 13
CN2/3: PCI-Express Connector 13
Steps for Installing .................................................................................................................................................................... 14
5Functional Description 15
Block Diagram........................................................................................................................................................................... 15
Twisted Pair Connection........................................................................................................................................................... 15
5.2.1 Intel X550 Ethernet Controller 15
5.2.2 Twisted Pair Interface 15
Driver Support........................................................................................................................................................................... 16
6Troubleshooting 17
7Additional Information 18
PC/104 Specifications............................................................................................................................................................... 18
PCI and PCI Express Specification .......................................................................................................................................... 18
8Limited Warranty 19

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Table of Figures
Figure 1: Board Dimensions ..................................................................................................................................................................................... 9
Figure 2: Board Connections .................................................................................................................................................................................. 10
Figure 3: Example 104™Stack............................................................................................................................................................................... 11
Figure 4: IDAN Dimensions ................................................................................................................................................................................... 12
Figure 5: IDAN Front Panel Connectors................................................................................................................................................................. 13
Figure 6: Example IDAN System ............................................................................................................................................................................ 14
Figure 7: LAN24550/345550 Block Diagram .......................................................................................................................................................... 15
Table of Tables
Table 1: Ordering Options ........................................................................................................................................................................................ 6
Table 2: Operating Conditions .................................................................................................................................................................................. 8
Table 3: Electrical Characteristics ............................................................................................................................................................................ 8

RTD Embedded Technologies, Inc. | www.rtd.com 6LAN24550/ LAN34550 User’s Manual
1Introduction
Product Overview
The LAN24550 and LAN34550 are dual 10Gb/s Copper Ethernet Modules. They provide two independent IEEE 10GBASE-T Ethernet
connections using a single Ethernet controller chip. This board runs completely off of the PCI-Express bus, utilizing Intel’s X550 10 Gigabit
Ethernet controller.
The LAN24550 is the PCI/104 Express version that has a pass-through PCI connector.
Board Features
•Intel X550 10 Gigabit Ethernet Controller
o2 Independent 10Gb/s Twisted Pair Ethernet Connections with Integrated MAC and PHY
oBackward compatible with IEEE 100BASE-TX and 1000BASE-T Ethernet standards
oNBASE-T (10/5/2.5Gb/s link speed) is also supported (only in Linux)
oAuto MDI/MDX
oIEEE 802.3az Energy Efficient Ethernet (EEE)
oIEEE 802.1q and 802.1ad VLAN support
oStorage technologies: iSCSI and FCoE over 10GBASE-T.
oNetwork virtualization technologies: VXLAN and NVGRE.
oIntegrated IPsec security engines.
oSecure NVM update support.
oJumbo frames of up to 15.5 KB.
•RJ45 connectors with integrated magnetics and Link/Activity indicator LEDs
•PCIe x4 Gen3 Interface
oType 2 Board can be used with a PCIe/104 Type 2 host
•PCI Express Bus:
oProvides up to 32 Gbps in each direction
oMSI-X support
oVirtualization technologies:
▪Flexible port partitioning
▪Virtual Machine Device Queues
▪PCI-SIG SR-IOV capability
•PCI Bus is used as a pass through interface.
Ordering Information
The LAN24550/LAN34550 is available with the following options:
Table 1: Ordering Options
Part Number
Description
LAN24550
PCI/104 Express - Dual 10Gb/s Copper Ethernet Controller
IDAN-LAN24550
Dual 10Gb/s Copper Ethernet Controller in IDAN enclosure
LAN34550
PCIe/104 Dual 10Gb/s Copper Ethernet Controller
IDAN-LAN34550
Dual 10Gb/s Copper Ethernet Controller in IDAN enclosure
The Intelligent Data Acquisition Node (IDAN™) building block can be used in just about any combination with other IDAN building blocks to
create a simple but rugged 104™ stack. This module can also be incorporated in a custom-built RTD HiDAN™ or HiDANplus High Reliability
Intelligent Data Acquisition Node. Contact RTD sales for more information on our high reliability systems.

RTD Embedded Technologies, Inc. | www.rtd.com 7LAN24550/ LAN34550 User’s Manual
Contact Information
1.4.1 SALES SUPPORT
For sales inquiries, you can contact RTD Embedded Technologies sales via the following methods:
Phone: [phone] Monday through Friday, 8:00am to 5:00pm (EST).
E-Mail: [email protected]
1.4.2 TECHNICAL SUPPORT
If you are having problems with you system, please try the steps in the Troubleshooting section of this manual.
For help with this product, or any other product made by RTD, you can contact RTD Embedded Technologies technical support via the
following methods:
Phone: [phone] Monday through Friday, 8:00am to 5:00pm (EST).
E-Mail: [email protected]

RTD Embedded Technologies, Inc. | www.rtd.com 8LAN24550/ LAN34550 User’s Manual
2Specifications
Operating Conditions
Table 2: Operating Conditions
Symbol
Parameter
Test Condition
Min
Max
Unit
Vcc5
5V Supply Voltage
4.75
5.25
V
Vcc3
3.3V Supply Voltage
n/a
n/a
V
Vcc12
12V Supply Voltage
n/a
n/a
V
Ta
Operating Temperature
-20
+70
C
Ts
Storage Temperature
-55
+125
C
RH
Relative Humidity
Non-Condensing
0
90%
%
MTBF
Mean Time Before Failure
Telcordia Issue 2
30°C, Ground benign, controlled
TBD
Hours
Electrical Characteristics
Table 3: Electrical Characteristics
Symbol
Parameter
Test Condition
Min
Typ
Max
Unit
P
Power Consumption
Vcc5 = 5.0V
3.472
8.47
9.32
W
Icc
5V Input Supply Current
Both ports operating at 10Gb/s
1.680
1.685
1.69
A
PCIe/104 Bus
Differential Output Voltage
0.8
1.2
V
DC Differential TX Impedance
80
120
Ω
Differential Input Voltage
0.175
1.2
V
DC Differential RX Impedance
80
120
Ω
Electrical Idle Detect Threshold
65
175
mV

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3Board Connection
Board Handling Precautions
To prevent damage due to Electrostatic Discharge (ESD), keep your board in its antistatic bag until you are ready to install it into your system.
When removing it from the bag, hold the board at the edges, and do not touch the components or connectors. Handle the board in an antistatic
environment, and use a grounded workbench for testing and handling of your hardware.
Physical Characteristics
•Weight: Approximately 159 g (0.35 lbs.)
•Dimensions: 90.17 mm L x 95.89 mm W (3.550 in L x 3.775 in W)
Figure 1: Board Dimensions

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Connectors and Jumpers
Figure 2: Board Connections
3.3.1 EXTERNAL I/O CONNECTORS
CN3: RJ45 Connector
Port 0 twisted pair cable connector
CN4: RJ45 Connector
Port 1 twisted pair cable connector
Link and Activity LEDs
Link and activity LEDs are provided on the edges of the RJ45 connectors. The LEDs provide status information. Each is a green LED. When
the link is established, the green Link LED will illuminate on the right side of the RJ-45 connector. When there is activity on that port the green
Activity LED will blink.
Link Status LEDs
Link Speed
Left LED
Right LED
100 Mb/s
Black
Blinks Green
1 Gb/s
Green
Blinks Green
2.5 Gb/s
Black
Blinks Green
5 Gb/s
Black
Blinks Green
10Gb/s
Yellow
Blinks Green
3.3.2 BUS CONNECTORS
CN16: PCI Connector
The PCI connector is the connection to PCI peripheral modules. This connector is used only as a pass through connector on this board. This
connector is not populated on the LAN34550 version.
CN1(Top) & CN2(Bottom): PCIe Connector
The PCIe connector is the connection to the system CPU. The position and pin assignments are compliant with the PCI/104-Express
Specification. (See PC/104 Specifications on page 18). The LAN24550/34550 is a Type 2 PCIe/104 device.
CN1 (Top)/CN2 (Bot):
PCIe Connector
CN4: RJ-45
Connector
CN3: RJ-45
Connector
CN16: PCI Connector (Pass Through)

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Steps for Installing
1. Always work at an ESD protected workstation, and wear a grounded wrist-strap.
2. Turn off power to the PC/104 system or stack.
3. Select and install stand-offs to properly position the module on the stack.
4. Remove the module from its anti-static bag.
5. Check that pins of the bus connector are properly positioned.
6. Check the stacking order; make sure all of the busses used by the peripheral cards are connected to the cpuModule.
7. Hold the module by its edges and orient it so the bus connector pins line up with the matching connector on the stack.
8. Gently and evenly press the module onto the PC/104 stack.
9. If any boards are to be stacked above this module, install them.
10. Attach any necessary cables to the PC/104 stack.
11. Re-connect the power cord and apply power to the stack.
12. Boot the system and verify that all of the hardware is working properly.
Figure 3: Example 104™Stack

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4IDAN Connections
Module Handling Precautions
To prevent damage due to Electrostatic Discharge (ESD), keep your module in its antistatic bag until you are ready to install it into your system.
When removing it from the bag, hold the module by the aluminum enclosure, and do not touch the components or connectors. Handle the
module in an antistatic environment and use a grounded workbench for testing and handling of your hardware.
Physical Characteristics
•Weight: Approximately 0.5 Kg (1.10 lbs.)
•Dimensions: 152.0 mm L x 130.0 mm W x 17.0mm H (5.98 in L x 5.12 in W x 0.67 in H)
Figure 4: IDAN Dimensions

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Connectors
4.3.1 EXTERNAL I/O CONNECTORS
The Diagram below shows the connector locations for the transceivers of the LAN24550 as they are brought out on the front panel of the IDAN-
LAN34550.
Figure 5: IDAN Front Panel Connectors
CN3: RJ45 Connector
Port 0 Twisted pair cable connector
CN4: RJ45 Connector
Port 1 Twisted pair cable connector
4.3.2 BUS CONNECTORS
CN1: PCI Connector
The PCI connector is the connection to PCI peripheral modules. This connector is used only as a pass through connector on this board. This
connector is not populated on the LAN34550 version.
CN2/3: PCI-Express Connector
The PCIe connector is the connection to the system CPU. The position and pin assignments are compliant with the PCI/104-Express
Specification. (See PC/104 Specifications on page 18)
The LAN34550 is a Type 2 PCIe/104 device.

RTD Embedded Technologies, Inc. | www.rtd.com 14 LAN24550/ LAN34550 User’s Manual
Steps for Installing
1. Always work at an ESD protected workstation, and wear a grounded wrist-strap.
2. Turn off power to the IDAN system.
3. Remove the module from its anti-static bag.
4. Check that pins of the bus connector are properly positioned.
5. Check the stacking order; make sure all of the busses used by the peripheral cards are connected to the cpuModule.
6. Hold the module by its edges and orient it so the bus connector pins line up with the matching connector on the stack.
7. Gently and evenly press the module onto the IDAN system.
8. If any boards are to be stacked above this module, install them.
9. Finish assembling the IDAN stack by installing screws of an appropriate length.
10. Attach any necessary cables to the IDAN system.
11. Re-connect the power cord and apply power to the stack.
12. Boot the system and verify that all of the hardware is working properly.
Figure 6: Example IDAN System

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5Functional Description
Block Diagram
The Figure below shows the functional block diagram of the LAN25215/35215. The various parts of the block diagram are discussed in the
following sections.
Figure 7: LAN24550/345550 Block Diagram
Twisted Pair Connection
5.2.1 INTEL X550 ETHERNET CONTROLLER
The LAN24550/34550 features Intel’s X550-AT2 10 Gigabit Ethernet controller used to interface with twisted pair cable Ethernet connections.
The X550 is a converged network adapter that not only supports LAN traffic, but also FCoE and iSCSI. The integrated MAC and PHY drives
down power consumption and cost. Backward compatibility with existing Gigabit Ethernet (and Fast Ethernet) systems is provided by the auto-
negotiation feature which ensures that the highest possible link speed is used at all times.
5.2.2 TWISTED PAIR INTERFACE
The board provides two RJ-45 connectors for Ethernet connectivity. The pinout of the modular connectors should be according to ANSI/TIA-
568 standard. The 10GBASE-T link could be used up to 100 meters (330 feet) with at least CAT6a cable, and 55 meters (180 feet) with CAT6
cable (in accordance with the IEEE802.3an standard) Although unshielded cabling is accepted by the standards, RTD recommends using
shielded cables and connectors at all times because 10 Gigabit Ethernet is highly susceptible to external fields coupling into the cable. The
following guidelines should be followed when installing and using twisted pair cables, especially long ones:
-Use shielded cables and connectors, for best performance double shielding (where individual pairs are also shielded) is recommended
(eg. SFTP)
-Verify the continuity of the shield along the path, eliminate unshielded segments
-Keep cable length and the number of connectors minimal
-Use CAT7 (or better) cable
-Minimize the length of unshielded and untwisted segments at the connectors
-Test cabling with an analyzer before use
-Avoid routing the cables close to high current/high voltage lines
-For long distances, use solid core cable (wall cable)
PCIe bus connector
PCIe x4 Gen3
Intel X550-AT2
Ethernet Controller
RJ45
connector
RJ45
connector
Power
supply

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Driver Support
For Windows, the Ethernet controller is supported by a driver provided by Intel. A copy of this driver is provided on the companion CD that is
shipped with the board and may also be downloaded from the RTD web site (www.rtd.com) or the Intel web site (www.intel.com). It is
recommended that you frequently check the RTD web site for updated documentation and drivers.
Under Linux, the Ethernet controller is supported via the ixgbe kernel module that is included from Linux kernel 2.6.18 up through 5.8. Both 32-
bit and 64-bit versions of Linux are supported. Most modern desktop Linux distributions will automatically detect the Ethernet controller and
load the necessary drivers. Contact the vendor of your Linux distribution for more information.
For other operating systems, the Ethernet controller may be natively supported via built-in drivers. Your operating system vendor should be
able to provide the necessary information.

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6Troubleshooting
If you are having problems with your system, please try the following initial steps:
•Simplify the System –Remove modules one at a time from your system to see if there is a specific module that is causing a
problem. Perform you troubleshooting with the least number of modules in the system possible.
•Swap Components –Try replacing parts in the system one at a time with similar parts to determine if a part is faulty or if a type of
part is configured incorrectly.
If problems persist, or you have questions about configuring this product, contact RTD Embedded Technologies via the following methods:
Phone: [phone]
E-Mail: [email protected]
Be sure to check the RTD web site (http://www.rtd.com) frequently for product updates, including newer versions of the board manual and
application software.

RTD Embedded Technologies, Inc. | www.rtd.com 18 LAN24550/ LAN34550 User’s Manual
7Additional Information
PC/104 Specifications
A copy of the latest PC/104 specifications can be found on the webpage for the PC/104 Embedded Consortium:
www.pc104.org
PCI and PCI Express Specification
A copy of the latest PCI and PCI Express specifications can be found on the webpage for the PCI Special Interest Group:
www.pcisig.com

RTD Embedded Technologies, Inc. | www.rtd.com 19 LAN24550/ LAN34550 User’s Manual
8Limited Warranty
RTD Embedded Technologies, Inc. warrants the hardware and software products it manufactures and produces to be free from defects in
materials and workmanship for one year following the date of shipment from RTD Embedded Technologies, Inc. This warranty is limited to the
original purchaser of product and is not transferable.
During the one year warranty period, RTD Embedded Technologies will repair or replace, at its option, any defective products or parts at no
additional charge, provided that the product is returned, shipping prepaid, to RTD Embedded Technologies. All replaced parts and products
become the property of RTD Embedded Technologies. Before returning any product for repair, customers are required to contact the factory for
a Return Material Authorization (RMA) number.
This limited warranty does not extend to any products which have been damaged as a result of accident, misuse, abuse (such as: use of
incorrect input voltages, improper or insufficient ventilation, failure to follow the operating instructions that are provided by RTD Embedded
Technologies, “acts of God” or other contingencies beyond the control of RTD Embedded Technologies), or as a result of service or
modification by anyone other than RTD Embedded Technologies. Except as expressly set forth above, no other warranties are expressed or
implied, including, but not limited to, any implied warranties of merchantability and fitness for a particular purpose, and RTD Embedded
Technologies expressly disclaims all warranties not stated herein. All implied warranties, including implied warranties for merchantability and
fitness for a particular purpose, are limited to the duration of this warranty. In the event the product is not free from defects as warranted above,
the purchaser's sole remedy shall be repair or replacement as provided above. Under no circumstances will RTD Embedded Technologies be
liable to the purchaser or any user for any damages, including any incidental or consequential damages, expenses, lost profits, lost savings, or
other damages arising out of the use or inability to use the product.
Some states do not allow the exclusion or limitation of incidental or consequential damages for consumer products, and some states do not
allow limitations on how long an implied warranty lasts, so the above limitations or exclusions may not apply to you.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

RTD Embedded Technologies, Inc.
103 Innovation Boulevard
State College, PA 16803 USA
Telephone: [phone]
Fax: [phone]
www.rtd.com
[email protected]
[email protected]
Copyright 2020 by RTD Embedded Technologies, Inc. All rights reserved.