Description

RADASYS SBC486DX66 is an ISA bus embedded single board computer (SBC) based on Intel 80486DX 66MHz processor, widely used in early industrial automation, avionics control, CNC, PLC/HMI control cores. It has the advantages of high reliability, extremely low power consumption, and complete PC compatibility, and is still in service in many old systems even today!

RADISYS SBC486DX66

?  Product Details

✅  Model structure analysis

SBC: Single Board Computer

486DX66：Intel 80486DX CPU， With a clock frequency of 66MHz, it was the main industrial control processor of that era

RADIOSYS was one of the top brands of embedded industrial computing platforms at that time, and its SBC series has long provided stable services for system integration projects such as GE, Honeywell, Siemens, etc.

?  Technical specifications and parameters

Processor: Intel 80486DX, 66MHz

Chipset: OPTi or SiS early embedded chipset

Memory support: Supports 72 pin SIMM slots, up to 32MB (EDO/FP RAM)

Storage interface: IDE x1, FDD x1 (supports hard drive/optical drive/floppy drive)

Expansion bus: ISA (16 bit) expansion interface

Serial port: COM1, COM2 (RS-232)

Parallel LPT x1: (printer/programmer)

Keyboard/Mouse Interface: PS/2 or AT Interface

Display output: Built in VGA chip (some models support ISA graphics card expansion)

BIOS: AMI or Phoenix BIOS, supports hard disk customization parameters

Power requirement:+5V DC (main power supply), some versions support AT power interface

Operating system compatibility: MS-DOS, Win3. x, Win95, QNX, VxWorks, early Linux, etc

?️  Characteristics and advantages

?  Durable and strong anti-interference ability

Industrial grade design, resistant to high and low temperatures, electromagnetic interference, suitable for harsh environments

?  Classic DOS Control System Platform

Compatible with old versions of PLC programming tools and instrument software, compatible with GE Fanuc, Yaskawa, and early FANUC CNC systems

?  ISA slot is compatible with multiple control cards

Such as CNC cards, I/O cards, acquisition cards, communication cards, GPIB cards, perfectly supporting old-fashioned customized control solutions

?  Compact structure, easy to embed into control box

The miniaturized design can be embedded into a 19 “industrial control chassis or custom embedded system

?  Easy maintenance, clear and adjustable CMOS structure

Flexible BIOS parameters, compatible with early hard drives, floppy drives, and programmers

?  Typical application areas

Numerical Control Machine Tool Control Unit (CNC Control Core)

Old style DCS controllers for petrochemical and power plants

PLC programming station and old protocol HMI interface machine

Communication base station control platform (early SONET equipment)

Embedded platform for aerospace instruments

Teaching Demonstration/Industrial Heritage System Maintenance

RADISYS SBC486DX66

?  Recommended related supporting products

RADASYS ENP2611: Upgraded SBC with support for Pentium

GE VMIVME-7750: Intel CPU VME Main Control Board

RADIOSYS EPC-5: Industrial chassis, compatible with SBC486 embedding

ISA I/O Card: Expansion Card Compatible with SBC486DX66

VGA ISA card: Provides graphics output (some versions do not have a graphics card)

?  Installation and usage suggestions

Suggest using industrial grade AT power supply or motherboard/backplane installation with ISA slot

Memory should choose a matching 72 pin SIMM (EDO priority)

BIOS settings require manual configuration of hard disk parameters (CHS mode)

If the power drops for a long time, it is recommended to replace the CMOS battery to avoid BIOS memory loss

Can connect industrial control devices through serial port, replacing modern debugging terminals