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4U Rackmount 486 AT 8x ISA 1x Shared PCI Slot Computer


Anchored by ESA’s proprietary 486 ISA / PCI motherboard with 8 ISA and one shared PCI slot, this heavy duty steel electroplated chassis with a -20° – 60°C operating temperature insures harsh environment reliability.

  • Zfx86 SoC Based on 486DX4 Core with FPU
  • CPU Speed Adjustable; 100, 66, 33MHz
  • PC-100 SDRAM
  • 8x ISA & 1x Shared PCI Slot
  • Native VGA Display Output
  • IDE & Bootable CF Card Slot
  • 300W Power Supply
  • Watchdog Timer
  • GPIO
  • EIA RS-310 19″ Rackmount Standard
  • Washable air filter

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Legacy 486 Design

A true 486 ISA slot industrial computer. This ESA proprietary system is ready for your ISA cards with 8 available ISA slots (1x shared PCI slot). Speed adjustable CPU ships at 100MHz default frequency and generates near zero heat. Bootable CF card slot and the ability to accept AT or ATX power. On-board video frees up an additional a slot for an add-in card. The heavy duty, cold rolled, electroplated steel chassis has two doors; one with a key lock and a filter door with a thumbscrew. Add-in card hold-down bar with individually adjustable fingers to keep cards solidly in place during movement or shipping.

Versatile Performance  

The ESA-486AVR 486 motherboard is equipped with a hard-wired ultra low-power Zfx86 SoC rated at less than 1.5W @100MHz.  The Zfx86 SoC is built on a 100MHz 486DX4 core with FPU and is speed adjustable by jumper to 100, 66, or 33MHz.  The PC-100 SDRAM is also hard-wired and on-board video is provided through a Silicon Graphic controller.  Watchdog timer and GPIO in standard format.  IDE channels and/or the native bootable internal CF card slot are available for storage media.






Legacy I/O with a New Twist

8x ISA slots, 1x shared PCI slot, 2x IDE, 1x FDD, 2x RS232,  1x LPT, AT keyboard connector, optional PS/2 keyboard and mouse connectors, 1x bootable internal CF card slot, 1x Mini PCI slot, and 1x VGA DB15 connector. 

Column 1Column 2
Processor486 ZFx86 System-on-Chip, ultra-low power, less than 1.0W @100MHz, user selectable CPU speed:  33MHz, 66MHz, 100MHz
GraphicsSilicon Motion graphic controller on board; SM712 with internal 4MB memory
Memory8MB PC-100 SDRAM on board (32MB and 128MB available)
Watchdog TimerStandard
Parallel1x LPT header
Keyboard1x PS/2 keyboard header
Mouse1x PS/2 mouse header
Video1x VGA connector on backwindow slot bracket
Serial2x RS-232, backwindow slot bracket(s)
KeyboardAT style keyboard connector
ISA8x ISA slots
PCI1x shared PCI slot
Mini PCI1x Full-size Mini PCI card slot
GPIOStandard format
IDE HDD2x IDE headers
CF Card SlotInternal bootable (Shared IDE)
Floppy Drive1x floppy drive header
Power SupplyInternal 300W ATX PS/2 standard or AT power supply optional
SwitchesPower ON/OFF, external reset, internal reset  
IndicatorsExternal LEDs for Power, HDD Activity.  Internal LEDs for power and HDD activity 
Dimensions19" (W) x 7.0" (H) x 20.1" (D)
Weight43.5 Lbs
MaterialHeavy duty, cold rolled, electroplated steel
Bays3x 5.25" & 1x 3.5"
Operating Temperature-20°C ~ 60°C
Storage Temperature-30°C ~ 70°C
Humidity10%~90% , non-condensing
Air FilterWashable air filter behind door
Fans1x 120mm, 108CFM fan & opening for optional 120mm Fan


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