Analog Devices RTI-815 Multifunction Data Acquisition Card

Analog Devices RTI-815 Multifunction Data Acquisition Card is an ISA-bus expansion card for IBM PC/XT/AT-compatible computers that delivers both analog-to-digital conversion and digital I/O in a single board. As a true multifunction analog/digital data‑acquisition card, the RTI‑815 is designed to plug into an ISA slot and enable PC-based sensing, monitoring, and simple control tasks without needing separate interface hardware. Historically documented as a multifunction analog and digital input/output board, the RTI‑815 supports multiple analog input channels alongside digital I/O lines, making it suitable for lab data logging, process monitoring, and instrumentation experiments on legacy systems. The card comes from Analog Devices as part of its RTI family of legacy data acquisition boards, with later members such as RTI‑834/RTI‑835 offering higher performance variants for expanded I/O and timing capabilities. For engineers working with vintage test rigs or embedded PC-based measurement systems, the RTI‑815 provides a compact, plug-in interface for collecting sensor data and issuing digital signals from a PC environment.