ICS Electronics VXI-5535B Multifunction Module

The ICS Electronics VXI-5535B is a single-slot VXI C-size multifunction module that integrates four independent interfaces - one GPIB, two configurable serial ports, and 64 bits of digital I/O - into a compact instrument control platform. Each interface operates with its own logical address and non-volatile configuration memory, enabling flexible deployment in automated test equipment and industrial control systems without requiring repeated reconfiguration. ## Technical Specifications GPIB Interface • One dual-mode IEEE-488.2 compliant GPIB interface Serial Interfaces • Two independent channels, each configurable for RS-232, RS-422, or RS-485 • Programmable baud rates from 50 to 460,800 baud; non-standard rates supported to closest divider value • Asynchronous operation up to 460,800 baud • Synchronous data transfer using external clock signals • Asynchronous and SDLC protocol support (standard) • Internal termination networks on each channel for RS-422/RS-485 signal biasing Digital I/O • 64 bits total, configurable as latched outputs or gated inputs • Logic levels: 3.3 V with 5 V tolerance for mixed-voltage compatibility • User-selectable 3.3 V or 5 V DC pull-up voltage for switch sensing VXIbus and Data Transfer • VXI 1.4 and IEEE-488.2 compliant • Fast Data Channel protocol support; data transfer rates exceed 4 Mbytes per second • Independent trigger and interrupt programming per interface Configuration • SCPI command set and ICS short-form commands • Non-volatile memory stores all interface settings • Internal processors offload controller overhead ## Key Features • Four-character LED front panel display for status and diagnostics • Each interface independently programmable with persistent memory storage • Mixed-voltage logic support (3.3 V/5 V) for broad system compatibility • Internal termination eliminates external termination networks on serial lines ## Typical Applications • Automated test equipment (ATE) systems • Industrial control and instrumentation • Multi-protocol data acquisition and command distribution ## Compatibility & Integration Fully compatible with standard VXI test systems. Operates as a VXI 1.4 instrument with independent logical addressing for each interface, enabling seamless integration into controller-managed instrument racks.