RTD Embedded Technologies, Inc.
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www.rtd.com
6
LAN25255HR/LAN35255HR User’s Manual
1
Introduction
Product Overview
1.1
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 Features
1.2
BroadCom BCM53115 Gigabit Ethernet Switch:
o
5 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
o
Industrial Temperature rated: -40 to +85 C
PCI Express (PCIe) x1 Interface to CPU through PCIe/104 bus
o
Universal interface operates on Type 1 and Type 2 PCIe/104 buses
PCI Express Bus:
o
Provides 2.5 Gbps in each direction
o
Single lane and single Virtual Channel operation
Compatible with multi-Virtual Channel chipsets
o
Packetized serial traffic with PCI Express Split Completion protocol
o
Data Link Layer Cyclic Redundancy Check (CRC) generator and checker
o
Automatic Retry of bad packets
o
In-band interrupts and messages
o
Message Signaled Interrupt (MSI) support
PCI Bus is used as a pass through interface on LAN25255HR, not present on the LAN35255HR
Ordering Information
1.3
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.
