In the power supply and distribution system, TTU (Transformer Terminal Unit) is used to collect and control the information of the distribution transformer. Licensed Materials - Property of IBM Corp. © Copyright IBM Corporation and other (s) 2005, 2026., registered in many jurisdictions worldwide. It can monitor the operation condition of the distribution transformer in real time and transmit the collected information to the main station. Distribution networks provide last mile delivery of the power grid to users, and are critical to power supply services. Addresses, mail and packages addressed to TTU Residence Halls The main phone number to the university is (806) 742-2011. Smart DB boxes have extra parts like energy monitoring units and communication modules.