PX-144 and PX-148 Discrete Input Terminals Installation Guide

This document provides detailed technical specifications, wiring instructions, and installation guidelines for the PX-144 (four-point) and PX-148 (eight-point) 24VDC discrete sinking input terminals used in the Protos X Universal Field I/O system. It includes electrical ratings, response times, mounting requirements, and agency approvals for these bus terminal modules.