Guardall Site Controller PIU Manual

This document describes the Guardall Site Controller Version 4 PIU (Point Interface Unit), which integrates the Guardall access control system with a BAS (Building Automation System) Building Management System. It details the PIU's features, specifications, supported hardware (including single, two-door, and elevator controllers), and how it enables monitoring, alarm reporting, and interaction between access control points and BAS outstations.