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CHAPTER 1.
INTRODUCTION
The new EM-551 Series embedded SBC is especially designed for embedded applications
and to meet the requirements of limited space, low-cost and high-performance to suit
commercial and industrial needs. The new EM-551 Series is equipped with NS CS5530A
chipset to support NS Geode GX-1 300MHz CPU fanless function, ideal for the demanding
Internet Access Devices that require a low-power and low-heat dissipation Single Board
Computer.
Targeting on the rapid growing networking and embedded system markets, the EM-551
Series comes with highly integrated and cost-effective single-chip Fast Ethernet controller
Realtek RTL8139C to support three 10/100Mbps Base-T connector (its LED is as a LAN
indicator) gives it the ability to make it the perfect solution for popular networking devices
like Gateway, Router, Thin Server, Firewall and E-Box.
The EM-551series can be expanded with one FDD interface support up to two floppy
devices; two PCI/IDE ports that support up to four IDE devices and multi-word DMA and
Ultra DMA/33 interface helps designers and integrators improve system performance by
retrieving and sending data faster.
In addition, it is also equipped with one RS-232 serial ports; two USB ports; one multi-mode
parallel port which supports SPP, ECP and EPP modes. It provides more flexible functions
to satisfy all users' different application requirements.
Further more the EM-551also offers several industrial features such as I/O peripheral
devices that support power saving and doze/standby/suspend modes. And with its
industrial grade reliability, the EM-551 can operate continuously at temperatures up to 60°
C (140° F). All these numerous features provide an ideal solution for commercial and
industrial applications where stability and reliability are essential.
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