COM-1452 Datasheet, PDF (1/3 Pages) List of Unclassifed Manufacturers – Multi-Ethernet Module with 5 Fast Ethernet Controllers

Datasheet
COM-1452
Multi-Ethernet Module with 5 Fast Ethernet Controllers
Features
Architecture:
PC/104-Plus Version 2.0 compliant
Fast Ethernet Controllers:
Five Intel® 82551 Fast Ethernet controllers
Ethernet #1 Ethernet #2 Ethernet #3
PCI-to-PCI Bridge:
Texas Instruments PCI2060 PCI-to-PCI Bridge
Hardware bypass:
Hardware bypass between Ethernet ports 1 & 2
(relays normally open)
Watchdog:
PCI
Programmable management of an external WDT signal
BUS
PCI Environment:
5V tolerant
Supported Operating Systems:
WinCE®, WinXPE® and Linux®
RoHS:
Fully RoHS (2002/95/CE) Compliant
Interfaces:
• PC/104-Plus (PCI)
• PC/104 (ISA). For signal pass-through only
• Five Fast Ethernet ports
Physical 10/100BASE-T (magnetics) on board
• External Watchdog port
• Connector for Ethernet status LEDs
Ethernet LEDs Ethernet #4 Ethernet #5
ISA
BUS
External
Watchdog
General Description
The COM-1452 is a PC/104-Plus Version 2.0 compliant communications module that features 5 Fast Ethernet ports and allows the
host CPU module to perform bridging operations with the possibility to manage up to five different LANs using the Ethernet
protocol. There is also a hardware bypass between Ethernet ports 1 and 2 that can be either activated via software, automatically
activated when the COM-1452 is in powered off, or activated when a Watchdog signal is received from the host Eurotech CPU
module. In this way, for example, it is possible to realize a crossover connection between two LANs.
Each Ethernet port is managed by an Intel® 82551 controller that can provide fast data transfers by offloading TCP, UDP and IP
checksums from the main processor. The off-load TCP segmentation is also supported for operations such as Large Send.
The COM–1452 has the Texas Instruments PCI2060 PCI-to-PCI Bridge; this allows transactions to occur between a master on one
PCI bus and a target on another by creating hierarchical PCI buses. The bridge makes it possible for the primary and secondary
bus clocks to be completely asynchronous.
The small footprint design of the COM-1452 makes it easy to embed within new or existing system designs and is an ideal choice
when space-constrained environments are decisive factors. The module has been designed to resist harsh environmental
conditions; it is resistant to high humidity, vibrations and mechanical shocks. The module can be qualified to operate in the
standard (0 ~ +60°C) or extended (-40 ~ +85°C) temperature ranges.
ETH_COM-1452_DS120607
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