Abaco Systems / VMIC VMIVME-2120-115 64-Bit High-Voltage Digital Output

The Abaco Systems / VMIC VMIVME-2120-115 is a 64-channel high-voltage digital output VME module engineered for industrial control and signal switching applications. Built on a double Eurocard form factor, this module delivers open-collector sink drivers capable of handling output voltages from 5 VDC to 48 VDC with absolute maximum ratings to 55 VDC. The device supports flexible data transfers of 8, 16, or 32 bits and includes comprehensive protection mechanisms: output clamp diodes for inductive flyback suppression, optional automatic surge current shutdown, and optional thermal shutdown for incandescent and inductive loads.

Technical Specifications

• 64 independent high-current sink channels


• Open-collector output drivers: 300 mA sink (typical VOL: 0.20 V) or 600 mA sink (typical VOL: 0.55 V)


• Output voltage range: 5 VDC to 48 VDC; absolute maximum 55 VDC


• VOH (min) with 400 µA source: 4.7 V Interface & Addressing:


• Dual 64-pin DIN 41612 connectors


• Eight independently addressable ports on 8-, 16-, or 32-bit boundaries


• Jumper-selectable address modifier codes for short supervisory or short nonprivileged I/O access


• Independent Control and Status Register (CSR) address selection Form Factor & Compatibility:


• Double Eurocard (6U) module


• VMEbus specification compliant (ANSI/IEEE STD 1014-1987, IEC 821 and 297)


• Supports A16: D8, D16, D32 VMEbus data transfers

Key Features

• Built-in-Test (BIT) logic for off-line and real-time fault detection and isolation


• Output protection: clamp diodes, optional surge current shutdown, optional thermal shutdown


• Front panel Fail LED for diagnostic status indication


• Software-controlled verification of individual channel operation

Typical Applications Industrial automation, motor control, relay drivers, incandescent load switching, inductive circuit protection, distributed I/O systems requiring VMEbus integration.