A Tier II technician will gain an on-the-job understanding of the mechanical, electrical, fire life safety, and security systems used in a data center environment including, but not limited to the following: electrical distribution and layout, transformers, PLC's, generators, switchgear, UPS systems, STS', ATS' PDU's, chilled water systems, CRAC/CRAH's, pre-action sprinkler systems, security hardware, CCTV, monitoring, and CMMS systems. A Tier 2 technician requires the following skills: Security operations, first responder, fire watch, safety, troubleshooting, causality response, basic telecom best practices, data center architecture, copper and fiber installation, transmission methods and media, electrical theory, and customer service.