Central Office and PBX Installers and Repairers

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.

Job Task

• 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.

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