The Acromag/Xembedded/Xycom XVME-202 is a PAMUX Controller Module that interfaces VMEbus masters with OPTO 22 PAMUX I/O subsystems, enabling distributed data acquisition and control across extended network distances. Operating as an IEEE 1014-compliant A16:D08(0) DTB Slave, this single-height 6U card delivers high-speed access to remote I/O infrastructure while supporting up to 500 distributed I/O points via daisy-chained Intelligent Brain Boards located up to 500 feet from the VMEbus controller.
Technical Specifications
VMEbus Interface
• IEEE 1014 compliant; functions as A16:D08(0) DTB Slave
• Base address jumper-selectable on 1 Kbyte boundaries within VMEbus Short I/O address space
• Read access time (DS0 to DTACK): 2500 ns typical, 2700 ns maximum
• Write access time (DS0 to DTACK): 500 ns typical, 600 ns maximum
• DTACK negation (DS0 negated to DTACK negated): 65 ns typical, 100 ns maximum
I/O Multiplexing
• Supports up to sixteen PAMUX units, providing up to 512 individual control points
• Daisy-chaining architecture supports up to 500 I/O points total
• Remote I/O distance: up to 500 feet from VMEbus master
Physical Specifications
• Form factor: Single-High, 6U VMEbus card
• Dimensions: 165.1 mm × 100.01 mm (6.5″ × 3.94″)
Power Requirements
• Supply: +5 VDC, 1.6 A typical, 1.8 A maximum
– Key Features
• Direct compatibility with OPTO 22 PAMUX 4, 5, 6, and 2 (8-bit) I/O systems
• Extended remote I/O capability for flexible system layout
• Fast VMEbus transaction times minimize latency in real-time control
– Environmental Specifications
• Operating temperature: 0°C to 65°C (32°F to 149°F)
• Operating humidity: 20% to 95% RH, non-condensing
• Operating altitude: Sea level to 10,000 ft. (3048 m)
• Operating vibration: 5–2000 Hz, 0.015″ peak-to-peak, 2.5 g maximum acceleration
• Operating shock: 30 g peak acceleration, 11 msec duration
– Typical Applications
• Robotics control systems
• Numerical control machines
• Conveyor system management
• Machinery fault detection
• Real-time process control
• Multi-point data acquisition


















