Level 4 Installer • Must be able to complete all requirements of Level 1 & 2 & 3 Installers • Must have 5 years of experience installing telecom equipment within a central office/MSO/Data Center. • Be capable of performing as the Installation Supplier's in-charge person. • Be capable of performing additions, removals, and modifications on working equipment and circuits. • Skill Level 4 work operations/job activities may include: • Circuit modifications • Software additions or upgrades • Power transition work • Addition or removal of batteries. • Addition or removal of circuits on working power distribution sources. • Equipment testing and turn-up.