"Central Office and PBX Installers and Repairer" - Part 1
Job Description, Duties and Jobs

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Duties / Tasks	Activities	Skills	Abilities	Knowledge

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Basic Job Description:

Test, analyze, and repair telephone or telegraph circuits and equipment at a central office location using test meters and hand tools. Analyze and repair defects in communications equipment on customers' premises using circuit diagrams, polarity probes, meters, and a telephone test set. May install equipment.

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Job Duties and Tasks for: "Central Office and PBX Installers and Repairer"

Tests circuits and components of malfunctioning telecommunication equipment to isolate source of malfunction, using test instruments and circuit diagrams.

Analyzes test readings, computer printouts, and trouble reports to determine method of repair.

Tests and adjusts installed equipment to ensure circuit continuity and operational performance, using test instruments.

Connects wires to equipment, using hand tools, soldering iron, or wire wrap gun.

Installs preassembled or partially assembled switching equipment, switchboards, wiring frames, and power apparatus according to floor plans.

Retests repaired equipment to ensure that malfunction has been corrected.

Repairs or replaces defective components, such as switches, relays, amplifiers, and circuit boards, using hand tools and soldering iron.

Removes and remakes connections on wire distributing frame to change circuit layout, following diagrams.

Routes cables and trunklines from entry points to specified equipment, following diagrams.

Enters codes to correct programming of electronic switching systems.