rtd LAN25255HR User manual

RTD Embedded Technologies, Inc.
AS9100 and ISO 9001 Certified
LAN25255HR/LAN35255HR
4+1 Gigabit Ethernet Unmanaged Switch
User’s Manual
BDM-610020088 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 LAN25255HR 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 © 2011 by RTD Embedded Technologies, Inc. All rights reserved.

RTD Embedded Technologies, Inc. | www.rtd.com iv LAN25255HR User’s Manual
Table of Contents
1Introduction 6
Product Overview........................................................................................................................................................................ 61.1
Board Features ........................................................................................................................................................................... 61.2
Ordering Information................................................................................................................................................................... 61.3
Contact Information .................................................................................................................................................................... 71.4
1.4.1 Sales Support 7
1.4.2 Technical Support 7
2Specifications 8
Operating Conditions .................................................................................................................................................................. 82.1
Electrical Characteristics ............................................................................................................................................................ 82.2
3Board Connection 9
Board Handling Precautions ....................................................................................................................................................... 93.1
Physical Characteristics.............................................................................................................................................................. 93.2
Connectors and Jumpers.......................................................................................................................................................... 103.3
3.3.1 External I/O Connectors and Jumpers 10
3.3.2 RJ45 Twisted Pair Ethernet, CN5, CN7, CN9, CN11 10
3.3.3 Twisted Pair Ethernet CN1, CN6, CN8, and CN10 11
3.3.4 Status LEDs 11
3.3.5 External Status LED Connectors CN14 and CN15 11
3.3.6 Bus Connectors 12
CN1(Top) & CN2(Bottom): PCIe Connector 12
CN3: PCI Connector 12
Steps for Installing .................................................................................................................................................................... 133.4
4Functional Description 14
Block Diagram........................................................................................................................................................................... 144.1
BroadCom Gig-Ethernet Switch................................................................................................................................................ 144.2
Intel WG82574IT Gigabit Ethernet Controller........................................................................................................................... 144.3
Onboard LEDs and External LED Connectors ......................................................................................................................... 144.4
5IDAN Connections 15
Module Handling Precautions................................................................................................................................................... 155.1
Physical Characteristics............................................................................................................................................................ 155.2
IDAN-LAN25255HR and IDAN-LAN35255HR.......................................................................................................................... 165.3
IDAN Twisted Pair Ethernet PORT1, PORT2, PORT3, and PORT4........................................................................................ 175.4
Steps for Installing .................................................................................................................................................................... 175.5
6Troubleshooting 18
7Additional Information 19
PC/104 Specifications............................................................................................................................................................... 197.1
PCI and PCI Express Specification .......................................................................................................................................... 197.2
8Limited Warranty 20

RTD Embedded Technologies, Inc. | www.rtd.com vLAN25255HR User’s Manual
Table of Figures
Figure 1: LAN25255.................................................................................................................................................................................................. 6
Figure 2: RJ-45 Jack Connector ............................................................................................................................................................................. 11
Figure 3: IDAN-LAN25255HR and IDAN-LAN35255HR ........................................................................................................................................ 16
Figure 4: IDAN-LAN25255HR and IDAN-LAN25255HR Front View ...................................................................................................................... 16
Figure 5: IDAN-LAN25255HR and IDAN-LAN25255HR Rear View....................................................................................................................... 16
Table of Tables
Table 1: Ordering Options ........................................................................................................................................................................................ 6
Table 2: Operating Conditions .................................................................................................................................................................................. 8
Table 3: Electrical Characteristics ............................................................................................................................................................................ 8
Table 4: RJ45 Signal Assignments......................................................................................................................................................................... 10
Table 5: DIL Signal Assignments............................................................................................................................................................................ 11
Table 6: Status LEDs.............................................................................................................................................................................................. 11
Table 7: CN14 External LED Drive ......................................................................................................................................................................... 11
Table 8: CN15 External LED Drive ......................................................................................................................................................................... 12
Table 9: LAN25255HR and LAN35255HR IDAN Pin Out....................................................................................................................................... 17

RTD Embedded Technologies, Inc. | www.rtd.com 6LAN25255HR/LAN35255HR User’s Manual
1Introduction
Product Overview1.1
The LAN25255HR/LAN35255HR is designed to provide four Gigabit Ethernet ports for expanding the networking capabilities of any system.
The board can be used either in a PCI/104-Express system or as a standalone module. In a stack it uses an x1 PCI Express link for an
onboard Gigabit Ethernet controller. As a standalone module it provides four RJ45 ports one as an upstream port and 3 downstream ports.
This board is compatible with all PCI Express cpuModules. The LAN25255HR has both a PCIe/104 and PCI-104 connectors. The
LAN35255HR has only the PCIe/104 connector.
Board Features1.2
BroadCom BCM53115 Gigabit Ethernet Switch:
o5 Full Duplex Unmanaged Gigabit Ethernet Ports
1 port connects to the onboard WG82574IT Gigabit Ethernet controller
4 Ports Ethernet switch, any port can be the uplink
oIndustrial Temperature rated: -40 to +85 C
PCI Express (PCIe) x1 Interface to CPU through PCIe/104 bus
oUniversal interface operates on Type 1 and Type 2 PCIe/104 buses
PCI Express Bus:
oProvides 2.5 Gbps in each direction
oSingle lane and single Virtual Channel operation
Compatible with multi-Virtual Channel chipsets
oPacketized serial traffic with PCI Express Split Completion protocol
oData Link Layer Cyclic Redundancy Check (CRC) generator and checker
oAutomatic Retry of bad packets
oIn-band interrupts and messages
oMessage Signaled Interrupt (MSI) support
PCI Bus is used as a pass through interface on LAN25255HR, not present on the LAN35255HR
Ordering Information1.3
The LAN25255HR/LAN35255HR is available with the following options:
Table 1: Ordering Options
Part Number
Description
LAN25255HR
4 port Gigabit Ethernet Switch PCI/104-Express
IDAN-LAN25255HR
IDAN 4 port Gigabit Ethernet Switch in IDAN enclosure PCI/104-Express
LAN35255HR
4 port Gigabit Ethernet Switch PCIe/104
IDAN-LAN23255HR
IDAN 4 port Gigabit Ethernet Switch in IDAN enclosure PCIe/104
Figure 1: LAN25255
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 7LAN25255HR/LAN35255HR User’s Manual
Contact Information1.4
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 8LAN25255HR/LAN35255HR User’s Manual
2Specifications
Operating Conditions2.1
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
Ta
Operating Temperature
-40
+85
C
Ts
Storage Temperature
-55
+125
C
RH
Relative Humidity
Non-Condensing
0
90%
%
MTBF
Mean Time Before Failure
30C
TBD
Hours
Electrical Characteristics2.2
Table 3: Electrical Characteristics
Symbol
Parameter
Test Condition
Min
Max
Unit
P
Power Consumption
Vcc5 = 5.0V
TBD
W
Icc5
5V Input Supply Current
Active
TBD
mA
IBUS5
5V Current between buses
8.0
A
PCIe/104 Bus
Differential Output Voltage
0.8
1.2
V
DC Differential TX Impedance
95.2
116.9
Ω
Differential Input Voltage
0.175
3.3
V
DC Differential RX Impedance
92.7
115.8
Ω
Electrical Idle Detect Threshold
61
173
mV

RTD Embedded Technologies, Inc. | www.rtd.com 9LAN25255HR/LAN35255HR User’s Manual
3Board Connection
Board Handling Precautions3.1
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 Characteristics3.2
Weight: Approximately 55 g (0.12 lbs.)
Dimensions: 90.17 mm L x 95.89 mm W (3.550 in L x 3.775 in W)
Figure 2: Board Dimensions

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Connectors and Jumpers3.3
Figure 3: LAN25255HR/LAN35255HR Board Connections
3.3.1 EXTERNAL I/O CONNECTORS AND JUMPERS
CN5/7/9/11: RJ-45 connectors for Ethernet access
CN4/6/8/10: 2x5 0.1” DIL connector not populated in standard product. Used for bringing out the Ethernet ports in an IDAN system.
CN14/15: External LED connectors
JP1 and JP2: Power for external LED connectors CN14 and CN15
CN12 and JP3: Factory use only
3.3.2 RJ45 TWISTED PAIR ETHERNET,CN5, CN7, CN9, CN11
Connectors CN5, CN7, CN9, and CN11 are for UTP (Unshielded Twisted Pair) wiring normally used for 10/100/1000 Base-T Ethernet. It is the
default factory installed twisted pair connector on the board. The following table gives the pin out of CN5, CN7, CN9, and CN11.
Pin
1000 Function
10/100 Function
1
MDI_A+
Transmit +
2
MDI_A-
Transmit -
3
MDI_B+
Receive +
4
MDI_C+
Not Used
5
MDI_C-
Not Used
6
MDI_B-
Receive -
7
MDI_D+
Not Used
8
MDI_D-
Not Used
Table 4: RJ45 Signal Assignments
Link/ACT LED
CN5 Switch Port
Link/ACT LED
CN11 Switch Port
Link/ACT LED
CN9 Switch Port
JP1 LED Power
CN14 External LEDs
for CN5 & CN7 Ports
Link/ACT LED
Onboard Ethernet
JP2 LED Power
CN15 External LEDs
for CN9 & CN11 Ports
CN1 & CN2: PCIe/104 Connector
CN3: PCI-104 Connector
Link/ACT LED
CN7 Switch Port