Products Description
XYCOM XVME-674 Processor Module

Technical Specifications
Model:XVME-674
Brand:XYCOM
Product type:VMEbus PC/AT Compatible Single Board Computer Processor Module
Power supply:+5V,+12V,-12V VME backplane power,max 25W
Bus interface:Standard VMEbus,bus master & slave,support VME interrupt IRQ0~IRQ7
Form factor:6U single-height VME card
Weight:0.9kg
CPU:Intel 80486DX 33MHz or 80486DX2 66MHz,Overdrive CPU socket
Memory:4MB /16MB /32MB dual-access DRAM optional
Graphics:Super VGA graphics controller
Storage:Onboard IDE controller,floppy disk controller
Expansion:PC104 expansion site
Onboard communication:2×RS232 serial port,1×parallel port
VME addressing:A16/A24/A32,D08/D16/D32,programmable byte swap
Onboard indicator:FAIL,PASS LED;RESET switch
Operating temperature:0℃ ~ +70℃
Storage temperature:-40℃ ~ +85℃
Relative humidity:5%~95%,non-condensing
Certification:CE,UL
System compatibility
XVME-674 belongs to XYCOM XVME series industrial VME single board computer.
It installs in XYCOM VME chassis and cooperates with XVME series I/O modules.
Compatible with turbine,compressor and legacy DCS control systems via VME bus.
Commonly used for power plant,oil & gas,petrochemical old equipment maintenance and spare replacement.
Function
Act as controller of VME rack,runs legacy DOS/real-time operating system and process control programs.
Intel 80486 processor executes control logic,data acquisition and calculation tasks.
Dual-access RAM supports shared data exchange between local CPU and VME backplane.
Integrated SVGA graphics for local display monitoring.
Onboard IDE and floppy controller for system program and data storage.
PC104 expansion site for adding extra I/O and communication modules.
Dual RS232 and parallel port for field serial device and peripheral connection.
Full VME bus master function,access all VME I/O modules on backplane,read sensor data and output control commands.
Support VME bus arbitration,system reset and seven-level VME interrupt management.
Onboard self-test for CPU,memory,graphics,storage,serial circuit,VME bus interface,fault state displayed via FAIL LED.
Installation
Power off VME chassis.
Insert XVME-674 card into empty 6U single-height VME slot,tighten front panel fixing screw.
Set base address,interrupt level and memory configuration via board jumpers.
Connect VGA display,serial terminal or IDE storage device wiring.
Power on chassis,run BIOS and hardware self-test.
The module initializes and communicates with all I/O modules in VME rack.
Interface
VME P1,P2 backplane connector,front panel VGA,serial,parallel port,LED indicators and reset switch.
Feature
6U single slot VME single board computer,XYCOM XVME series.
PC/AT compatible architecture,support legacy industrial operating systems.
Dual-access RAM for high speed VME shared memory data transmission.
Built-in Super VGA video controller for local on-site display.
PC104 expansion interface for flexible function expansion.
Programmable byte swap,simplify big/little endian data conversion.
Full VME bus master capability,support 32-bit VME addressing and data transmission.
Discontinued obsolete VME module,supply only for old production system spare replacement.
Vibration resistant PCB design,suitable for turbine control cabinet.
Diagnostic
FAIL LED on:CPU fault,memory error,graphics/storage failure or VME bus interface damage;
Cannot boot:check backplane contact,DRAM,BIOS setting and storage media;
Serial/parallel communication failure:check wiring,baud rate and transceiver circuit;
VME bus access error:check bus arbitration and interrupt jumper configuration.
Product Brief
XYCOM XVME-674 is legacy VMEbus 6U single board computer based on Intel 80486 processor with PC/AT compatible architecture.
It serves as controller for VME rack,widely used as spare part for turbine and compressor control,petrochemical and power plant old DCS renovation.

Disclaimer
All parameters are for reference only and not for quotation basis. Goods are scarce and will be powered on for inspection before shipment. Overseas delivery lead time 3-7 working days. This item is only used for equipment maintenance and retrofit.