Xycom XVME-428/1

Technical Specifications

Serial Ports: 8
- RS-232C, RS-422A or TTL per port, software-selectable
- Data rates up to 115.2 kbit/s
Local CPU: 10 MHz 68000-series microprocessor for autonomous protocol handling
Memory: 128 KB dual-port RAM for transmit/receive buffering
VMEbus Interface: A16/A24, D16, interrupt-capable, programmable vector
Connectors: Rear-panel 96-pin DIN for all eight channels
Power Consumption: +5 V @ 600 mA typical

Tag：

Form Factor: 6U single-slot VME64 standard; 233 mm × 160 mm
Operating Temperature: 0 °C to +70 °C
Storage Temperature: –40 °C to +85 °C
Humidity: 5 % to 95 % RH non-condensing

Functional Features

Per-Port Configuration: Baud rate, character length, parity, stop bits and handshake lines set individually through on-board registers
Intelligent Buffering: Dual 8 KB FIFOs per channel decouple real-time serial traffic from host CPU load
Hardware Handshaking: RTS/CTS and DTR/DSR lines supported on every port
Interrupt Flexibility: Each port can assert unique or shared VMEbus interrupt vectors to minimize polling overhead
Front-Panel LEDs: Dedicated indicators for Tx, Rx, and CPU activity on every channel for rapid diagnostics
Firmware Field-Update: Boot-loadable firmware allows feature enhancements without hardware removal

Application Scenarios

Industrial Automation: High-density serial I/O for distributed PLCs, barcode scanners, weigh scales and vision systems on factory floors
Defense & Aerospace: Telemetry ground stations, radar data links, and avionics test benches requiring multiple protocol interfaces
Transportation: Vehicle fleet management, wayside railway signaling and toll-road data collection terminals
Energy & Utilities: Substation RTUs, turbine controllers and solar inverter arrays demanding robust multi-port communications

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