Measurement Computing's CIO-DAS08 provides eight single-ended channels of 12-bit analog input, three 16-bit down counter channels, three digital input, four digital output, and 24 digital I/O lines.
The analog input range and polarity are selectable with an on-board switch. Bipolar input ranges are ±10 V and ±5 V. The Unipolar input range is 0 to +10 V.
You select the base address with onboard dip switches. The interrupt level and pacer source are jumper-selectable. You can set the pacer source to use the internal PC clock or an external clock.
The CIO-DAS08 has a 37-pin analog connector and an onboard 37-pin digital connector.
Four digital output bits and three digital input bits are provided on the board's main connector. A 37-pin connector mounted on the board provides 24 digital I/O bits based on the 82C55 specification. The 24 bits are configured as two eight-bit ports and two four-bit ports. Each of these ports may be individually programmed as input or output.