# Tasks & work activities — communication infrastructure maintainer Source: O*NET 30.3, occupation 49-9052.00 (Telecommunications Line Installers and Repairers). ## Task statements - **[Core]** Travel to customers' premises to install, maintain, or repair audio and visual electronic reception equipment or accessories. - **[Core]** Inspect or test lines or cables, recording and analyzing test results, to assess transmission characteristics and locate faults or malfunctions. - **[Core]** Splice cables, using hand tools, epoxy, or mechanical equipment. - **[Core]** Measure signal strength at utility poles, using electronic test equipment. - **[Core]** Set up service for customers, installing, connecting, testing, or adjusting equipment. - **[Core]** Access specific areas to string lines, or install terminal boxes, auxiliary equipment, or appliances, using bucket trucks, climbing poles or ladders, or entering tunnels, trenches, or crawl spaces. - **[Core]** String cables between structures and lines from poles, towers, or trenches, and pull lines to proper tension. - **[Core]** Lay underground cable directly in trenches, or string it through conduits running through trenches. - **[Core]** Clean or maintain tools or test equipment. - **[Core]** Dig trenches for underground wires or cables. - **[Core]** Pull up cable by hand from large reels mounted on trucks. - **[Core]** Pull cable through ducts by hand or with winches. - **[Supplemental]** Place insulation over conductors, or seal splices with moisture-proof covering. - **[Supplemental]** Install equipment such as amplifiers or repeaters to maintain the strength of communications transmissions. - **[Supplemental]** Explain cable service to subscribers after installation, and collect any installation fees due. - **[Supplemental]** Compute impedance of wires from poles to houses to determine additional resistance needed for reducing signals to desired levels. - **[Supplemental]** Use a variety of construction equipment to complete installations, such as digger derricks, trenchers, or cable plows. - **[Supplemental]** Dig holes for power poles, using power augers or shovels, set poles in place with cranes, and hoist poles upright, using winches. - **[Supplemental]** Fill and tamp holes, using cement, earth, and tamping devices. ## Detailed work activities - Adjust equipment to ensure optimal performance. - Analyze test or performance data to assess equipment operation. - Calculate requirements for equipment installation or repair projects. - Clean equipment, parts, or tools to repair or maintain them in good working order. - Climb equipment or structures to access work areas. - Collect payments for goods or services. - Compact materials to create level bases. - Connect electrical components or equipment. - Dig holes or trenches. - Explain use of products or services. - Inspect telecommunications equipment to identify problems. - Install audio or communications equipment. - Install insulation in equipment or structures. - Lay cables to connect equipment. - Maintain work equipment or machinery. - Measure equipment outputs. - Move large objects using heavy equipment. - Operate cranes, hoists, or other moving or lifting equipment. - Test communications equipment to ensure proper functioning. - Travel to work sites to perform installation, repair or maintenance work.