These cards are designed to be the simplest method of hooking your PC to virtually any kind of control system. The cards plug into a spare PCI slot of a PC and have their inputs and outputs brought out to a 'D' type connector on the rear panel. There a three types of card, one with 4 relay outputs and 4 opto coupled inputs, one with 8 input/outputs, and one with 16 input/outputs.

The relay output part provides either 4, 8 or 16 Single Pole Single Throw (SPST) relays. Each relay channel can be used to switch external devices ON or OFF, maybe to simply swich lamps on or off, drive external high power relays, activate alarms, or maybe wired across existing push switches to remotely control machinery etc. etc.. Each relay channel is fitted with an LED to help determine the relay state.

The input part provides either 4, 8 or 16 photo coupled digital input channels, which allow the input signals to be completely isolated giving protection from power control circuits and preventing ground loops. The inputs can be driven by applying 17 to 28Volts DC or can be set to work from an external volt free contact e.g. unconnected push switch or another relay contact.

As with all our PCI cards, up to FOUR of these cards can be fitted into a single PC.

	So... When I get my card, how do I make it work? Click the jigsaw
		Bringing the peices together

The cards come complete with a user manual and driver CD containing all the necessary software to both install the cards and to develop control software. Click the jigsaw to find out more, and to download sample code to give you some idea of how easy it is.

	Full .dll and .ocx libraries for inclusion in VB / C++/ Delphi based applications
	Combines both isolated input and isolated outputs onto one card.
	Input and output signals can be completely isolated, thus preventing ground loops.
	LED Status indication on relay output lines
	All terminals brought to 'D' connector for easy connection.
	Isolated 24v ( nominal ) or volt free contact inputs.
	Input Specifications Input Voltage 17 to 28V / 60mA Max. Isolation Voltage 1500 VDC Max. Response time 100 us minimum.
	Relay Specifications Contact rating 120V/AC 0.5Amp, 24VV/DC 1Amp Contact Form SPST Response time 4.5 mS on / 1.5 mS off. Breakdown voltage 1000V AC for 1 minute. Life expectancy 0.5 million operations @ 24V 1A

These cards are not suitable for isolating voltages in excess of 120v.

A qualified electrician MUST be consulted BEFORE attempting any connection to power circuits using these cards.