The National Instruments PCI-6123 Multifunction I/O Device, identified by part number 779409-01, offers comprehensive capabilities for a variety of industrial automation applications. This device is equipped with eight analog input channels featuring a 16-bit resolution ADC, enabling precise signal acquisition. The analog inputs support a maximum sampling rate of 500 kS/s per channel and can handle a broad range of applications, with a minimum sampling rate of 0 kS/s. Designed for robustness, the PCI-6123 incorporates DC input coupling with a maximum working voltage of ±11 V across all channels and includes overvoltage protection of ±36 V, safeguarding both positive and negative inputs with a maximum input current rating of ±20 mA during overvoltage conditions.

In addition to its analog capabilities, the PCI-6123 provides eight digital I/O channels that are compatible with TTL/CMOS levels, supporting input voltage ranges of 2.0 to 5.0 V and offering a high output voltage of 4.35 V. The module features a buffer size of 2,044 bytes for both input and output, achieving a data transfer rate of 10 Mwords/s. Notably, it includes two 24-bit counters/timers for timing and measurement functions, with base clock frequencies of 20 MHz and 100 kHz, and a frequency scaler supporting operational accuracy of ±0.01%.

The PCI-6123 operates with a power requirement of 1.9 A at +5 VDC, 1.55 A at +3.3 V, and 81 mA at -12 V. It provides +4.65 to +5.25 VDC with 1 A available at the I/O connector. Compact in design, the dimensions of the unit are 31.2 cm x 10.6 cm (12.3 in x 4.2 in), and it features a 68-pin male SCSI-II type I/O connector for seamless integration with other devices. The unit is designed to function within a temperature range of 0 to 50 degrees Celsius and can be stored at temperatures between -20 to 70 degrees Celsius, supporting a relative humidity range of 5% to 90%, noncondensing.