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Midrange communication mainboard, with a 233 or 266 Mhz Geode SC1100 processor

Soekris Engineering net4801

This compact, low-power, low-cost, advanced communication computer is based on an up to 266 Mhz 586 class processor. It has three 10/100 Mbit ethernet ports, up to 256 Mbyte SDRAM main memory and uses a CompactFlash module for program and data storage. It can be expanded using a MiniPCI type III board and a low-power standard PCI board.

It has been optimized for use as a Firewall, VPN Router and Internet Gateway, but has the flexibility to take on a whole range of different functions as a communication appliance. The board is designed for long life and low power.

It will be available in any volume in the standard version, and as board only or with a small metal box and various power supplies. The board can be customized according to requirements when ordering higher volume.

Hardware and Software


   * 233 to 266 Mhz NSC SC1100 single chip processor
   * 32-256 Mbyte SDRAM, soldered on board
   * 4 Mbit BIOS/BOOT Flash
   * CompactFLASH Type I/II socket, 8 Mbyte FLASH to 4 Gbyte Microdrive
   * UltraDMA-33 interface with 44 pins connector for 2.5" Hard Drive
   * 1-3 10/100 Mbit Ethernet ports, RJ-45
   * 2 Serial ports, DB9 and 10 pins header
   * USB 1.1 interface
   * Power LED, Activity LED, Error LED
   * Mini-PCI type III socket. (t.ex for optional hardware encryption.)
   * PCI Slot, right angle 3.3V signaling only, dual PCI slot option planned.
   * 12 bit general purpose I/O, 20 pins header
   * Temperature and voltage monitor
   * Hardware watchdog
   * Board size 5.2" x 5.7"
   * Power using external power supply is 6-20V DC, max 15 Watt
   * Option for 5V supply using internal connector
   * Operating temperature 0-60 °C


   * comBIOS for full headless operation over serial port
   * PXE boot rom for diskless booting
   * Designed for FreeBSD, NetBSD, OpenBSD and Linux
   * Runs most realtime operating systems

Replacement Internal Battery:

   * net4801, net5501: Panasonic ML1220/V1AE - available from DigiKey and others.  

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