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, trouble shooting, causality response, basic telecom best practices, data center architecture, copper and fiber installation, transmission methods and media, electrical theory, and customer service.