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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

1. Connect, test and verify alternating current (AC) and direct current (DC) circuitry
   • Identify work health and safety (WHS) issues and notify appropriate personnel
   • Connect a series and a parallel circuit following safe work practices
   • Choose appropriate test equipment and measure voltage (V), current (I) and resistance (Ω) values for the electricity in these circuits
   • Use calculations to verify the flow of electrical current in these circuits
   • Compare measured values to calculated values and determine reasons for any variations
   • Measure low voltage (LV), extra low voltage (ELV) or telecommunications network voltage (TNV) and determine if values are within equipment or power supply specifications
   • Use appropriate test equipment to measure AC voltage (multimeter) or AC current (clamp meter) in a safe manner that does not require an LV circuit to be disconnected
   • Test residual current devices (RCD) or earth leakage devices to ensure they are operational prior to working with AC mains powered equipment, power supplies and tools
   • Evaluate results and determine probable faults as required
2. Evaluate analog and digital signals
   • Compare characteristics of an analog signal and a digital signal
   • Produce a layout using building blocks to represent a typical analog and a typical digital circuit to show different characteristics
3. Perform cable selection
   • Compare basic transmission characteristics, resistance, impedance and effects of signal frequency of different types of cables and select the most appropriate type to suit application
   • Connect two devices with a patch cable and test the connection