Elements and Performance Criteria
- Build and test direct current (DC) and alternating current (AC) circuits and telephone earthing
- Identify any hazards and work health and safety (WHS) issues for safe worksite and notify appropriate personnel
- Connect series and parallel DC and AC circuit configuration following safe work practices
- Choose appropriate test equipment and measure values of electrical quantities of circuits
- Use calculations to verify measured values of electrical quantities in series and in parallel circuit configuration
- Compare measured values to calculated values and determine reasons for any variations
- Evaluate results and determine probable faults if relevant
- Measure voltages present on telephone line and compare to exchange battery voltage
- Measure resistance to earth, ensuring electrical earth in telecommunications installation
- Configure a safe ADSL circuit configuration with mode 3 connection
- Determine effects of bandwidth, frequency and attenuation on DSL circuitsas used for broadband client access
- Design and configure ADSL circuit from network boundary through to mode 3 socket for alarm system connected to monitoring station
- Configure connection to ensure that ADSL circuit is not disconnected for safety reasons when alarm activation in conjunction with a mode 3 socket disconnects plain old telephone service (POTS) circuit
- Use level 3 tester to verify correct termination and installation of digital transmission line
- Diagnose and rectify faults
- Determine urgency and impact of faults and required response timeframe for clearance
- Identify type of fault and determine most probable causes of fault from data and historical trends where available
- Select tools and test equipment relevant to system and type of fault
- Diagnose fault in methodical and safe manner using suitable fault-finding technique
- Isolate fault progressively to remove likely variables from diagnostic
- Determine options to rectify fault and present to client for decision on rectification
- Document test methods and results, and file with other system installation records
- Alter existing services
- Identify existing and proposed cable systems for altering services to existing installation
- Plan alterations to cause minimal disruption to ongoing client activity
- Use appropriate tools to safely terminate telecommunications cables and outlets
- Identify and rectify any cable fault
- Carry out alterations in safe manner and according to both mandatory and recommended industry standards
- Identify risks posed by contact with remote power feeding services
- Test alteration and obtain sign off with client