ACCES I/O announces Low-Cost PCI Digital I/O Family

SAN DIEGO, CA-October 10, 2006-ACCES I/O Products Inc., is pleased to release a new line of low-cost PCI isolated digital I/O cards. Offering a range of 16, 32 or 48 individually optically isolated inputs or outputs, these cards are ideal for use in control and instrumentation applications where high-voltage protection is required. Individual channel-to-channel isolation allows every channel to be physically and electrically separated from the others. Inputs feature a change-of-state detection capability which provides a means to automatically interrupt the host computer in real time. When one or more input bits change state, a PCI interrupt is generated to automatically wake up your application. Each input is rectified by photo-coupler diodes and is therefore polarity insensitive--either positive, negative, and AC voltage inputs are acceptable. The input range is up to 60VDC or AC rms at frequencies of 40 to 10kHz. The opto-isolated outputs use solid-state, P-Channel FET switches, providing a much faster turn-on and turn-off time and higher life expectancy than electromechanical relays. User-supplied load voltages can range from 5V to 60V. These cards are especially useful in applications where high common-mode external voltages are present. Isolation is required to guard electronics from transient voltage spikes and offers greater common-mode noise rejection in electronically noisy surroundings containing industrial machinery and inductive loads. These applications include factory automation, energy management, industrial ON/OFF control, security systems, manufacturing test and process monitoring. In addition to protecting industrial applications from accidental contact with high external voltages, the isolation provided eliminates troublesome ground loops. Connections are available via 50-pin IDC type headers, ribbon cables, and a variety of screw terminal boards. Key features include: Inputs