The PCM-3724 provides 48 fully buffered digital input/output lines. It features Intel 8255 Mode 0 software compatibility for use with all popular software drivers. The two 50-pin I/O connectors are plug compatible with Opto 22 type I/O racks.The PCM-3724 provides the reliability of fully buffered inputs and outputs and high drive capacity at a cost comparable with non-buffered boards. The module's 48 bits are divided into six 8-bit I/O ports. Each port is software configurable as an input or an output. Two hardware interrupt lines are also available.

The VCM-DAS-3 I/O module provides 16 channels of 12-bit resolution analog outputs along with 24 digital I/O lines on a single PC/104 module. The rugged VCM-DAS-3 is designed to provide capabilities beyond what is presently available on the market while maintaining drop-in compatibility with current industry standards. Ideal applications include process control, closed-loop servo control, and motor-control.

The VCM-DAS-1 module provides a combination of analog I/O, digital I/O, and non-volatile storage, which makes it ideal for data acquisition and control applications. All of its functions are provided on a single 3.8 x 3.6" PC/104 module. The analog input section features 16 single-ended input channels with 16-bit resolution, fast 10 µS conversion, and a ±5V or ±10V input range (153µV or 305µV resolution). Throughput of up to 100 kHz may be realized with conversions on one channel and up to 67 kHz when scanning between channels. A variety of automatic channel scanning and triggering modes are available, including DMA support. The analog output section includes two 12-bit analog output channels. Each may be jumpered independently for 0-5V or 0-10V output. Both sections feature simplified calibration using programmable digital pots. In addition, the on-board EEPROM which is used to store the calibration values has free space available for user data. The digital pots power up and reset to mid-scale, and can be set to any calibration value during system initialization. The digital I/O section provides 16 digital I/O lines which feature high current TTL drivers. The two 8-bit ports are byte configurable as inputs only or outputs with readback. The digital interface is plug compatible with Opto 22 type modular I/O racks.

The VCM-DAS-2 module provides a combination of analog I/O, digital I/O, and non-volatile storage, which makes it ideal for data acquisition and control applications. All of its functions are provided on a single 3.8 x 3.6" PC/104 module. The analog input section features 16 single-ended input channels with 16-bit resolution, fast 5 µS conversion, and a ±5V or ±10V input range (153mV or 305mV resolution). Throughput of up to 200 kHz may be realized with conversions on one channel and up to 100 kHz when scanning between channels. A variety of automatic channel scanning and triggering modes are available, including DMA support. The analog output section includes two 12-bit analog output channels. Each may be jumpered independently for 0-5V or 0-10V output. Both sections feature simplified calibration using programmable digital pots. In addition, the on-board EEPROM which is used to store the calibration values has free space available for user data. The digital pots power up and reset to mid-scale, and can be set to any calibration value during system initialization. The digital I/O section provides 16 digital I/O lines which feature high current TTL drivers. The two 8-bit ports are byte configurable as inputs only or outputs with readback. The digital interface is plug compatible with Opto 22 type modular I/O racks. Complete C Language source code drivers and DOS-based diagnostic and calibration routines are available for download.

VersaLogic's SPX expansion modules provide a new level of economy and convenience for routine I/O expansion. Their small size, low cost, and simplified system interface are possible due to high levels of integration and miniaturization that were not previously available. Unlike larger expansion formats such as PC/104, the extremely compact SPX format does not require a stacking connector or a position in the expansion stack. Connected by a single 14-pin cable to any SPX-enabled base board, SPX expansion modules can be mounted in any position, up to two feet from the host. The small (1.2" x 3.8") SPX modules may optionally be attached to the base board using PC/104 stand-offs. Up to four SPX modules can be daisy-chained together to meet targeted I/O requirements at a substantial cost and space savings.