Abaco Systems / VMIC VMIVME-2700-200 16-Channel Optically Coupled Digital I/O Board

The VMIVME-2700-200 is a 16-channel optically coupled digital I/O board designed for VMEbus systems requiring high-isolation signal interfacing. Each channel configures independently as input or output, with optical coupling delivering 1.5 kV sustained and 3.5 kV pulsed isolation between channel and bus. The board accommodates input signals from 5 to 125 VDC, sinks output current to 300 mA at 30 VDC or peak AC, and supports both voltage and contact sensing modes.

Built-in-Test capability enables rapid fault detection on inputs and outputs. The double-height 6U Eurocard format fits standard VME racks and connects via front-panel barrier strip connectors with user screw terminals.

Technical Specifications

• Channels: 16 optically coupled digital I/O, independently configurable


• Optical Isolation: 1.5 kV sustained channel-to-bus; 3.5 kV pulsed channel-to-bus; 500 V sustained channel-to-channel


• Input Voltage Range: 5 to 125 VDC


• Maximum Output: 30 VDC or peak AC at 300 mA sink capability


• Data Transfer: 8-bit and 16-bit VMEbus transfers


• Addressing: A16 or A24 nonprivileged/supervisory short I/O; DIP switch selection


• Form Factor: Double-height 6U VME Eurocard


• Operating Temperature: 0 to 55 °C


• Storage Temperature: -20 to 85 °C


• Humidity: 20 to 80% noncondensing


• Cooling: Convection

Key Features

• Dual-mode input sensing: voltage or contact configuration


• Built-in-Test for input and output fault isolation


• Latchable pluggable barrier strip connectors with mating hardware supplied


• DIP switch board address selection

Typical Applications

• Industrial automation and process control


• Data acquisition systems


• Signal isolation in electrically noisy environments

Compatibility & Integration

• Full VMEbus specification compliance


• Compatible with VMIC Universal I/O Controllers (VMIVME-9300 Series)