Industrial GAA26800SG3 Communication Control PC Module is a spare part used in Otis elevator systems, manufactured by SSI Electronics. The GAA26800SG3 module is described as a Communication Control PC Module for Otis elevators, and Otis spare parts literature lists it as a CPIB board. As part of the CPIB family within Otis' control architecture, this module provides the computer‑based communications control function that coordinates data exchange between subsystems and the main controller.
