Siemens TI305-20T-1 SIMATIC Digital Output Module

Siemens TI305-20T-1 SIMATIC Digital Output Module is an eight-channel output card for the TI305 backplane, providing eight switched 115 VAC outputs that are controlled by a TI305-based controller. This module is used to drive external AC loads such as relays and contactors in legacy SIMATIC automation systems, consolidating multiple outputs onto a single card. The model number TI305-20T-1 (also listed as TI-305-20T-1) identifies an eight-point digital output module designed for TI305 installations; it interfaces with the TI305 system to execute discrete on/off commands from the host controller. Typical applications include machine control, automation panels, and process equipment where multiple AC devices require coordinated, centralized switching from a single TI305 controller. When integrating this module, confirm compatibility with the TI305 backplane and ensure proper channel addressing and timing in the control program to maintain reliable operation.