Xycom XVME-244/DIO

Technical Specifications

Input Channels: 32, optically isolated, DC 24 V nominal, 0–30 VDC range
Output Channels: 32, optically isolated open-collector, 30 VDC @ 250 mA per channel
Isolation: 500 Vrms channel-to-channel and channel-to-bus
Response Time: 1 ms input debounce; 1 ms output turn-on/off
Power Consumption: +5 V @ 1.2 A typical, +12 V @ 100 mA typical
VMEbus Interface: A16/A24/A32, D16, interrupt-capable, programmable vector and level
Form Factor: 6U single-slot VME64 standard; 233 mm × 160 mm

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Operating Temperature: 0 °C to +70 °C
Storage Temperature: –40 °C to +85 °C
Humidity: 5 % to 95 % RH non-condensing

Functional Features

Optical Isolation: Eliminates ground-loop problems and withstands high common-mode transients
Jumper-Free Software Configuration: All input/output direction, polarity, and interrupt parameters set via VMEbus registers
Programmable Interrupts: Any input bit can generate a VMEbus interrupt on rising, falling, or both edges
Read-Back Capability: Host CPU can read the actual state of each output for safety-critical diagnostics
Front-Panel LEDs: Individual status LEDs for every input and output for immediate visual verification
Expandability: Up to eight XVME-244 cards can coexist in one VME rack, yielding 512 I/O points

Application Scenarios

Industrial Automation: High-density monitoring and control of limit switches, proximity sensors, relays, and solenoids on packaging and assembly lines
Defense & Aerospace: Launch-pad ground support equipment, avionics test stations, and shipboard machinery control requiring high isolation and reliability
Energy & Utilities: Substation automation, turbine control, and solar inverter status acquisition
Test & Measurement: Digital stimulus/response I/O for automated test equipment in automotive, semiconductor, and aerospace validation labs

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