Elements and Performance Criteria
- Build and test DC and AC circuits and telephone earthing
- Identify any hazards and occupational health and safety (OHS) issues for a safe work site and notify appropriate personnel
- Connect a series and a parallel DC and AC circuit configuration following safe work practices
- Choose the appropriate test equipment and measure the values of electrical quantities of the circuits
- Use calculations to verify the measured values of the electrical quantities in a series and in a parallel circuit configuration
- Compare measured values to calculated values and determine the reasons for any variations
- Evaluate results and determine the probable faults if relevant
- Measure voltages present on a telephone line and compare to exchange battery voltage
- Measure resistance to earth, ensuring an electrical earth in a telecommunications installation
- Configure a safe ADSL circuit configuration with Mode 3 connection
- Determine the effects of bandwidth, frequency and attenuation on xDSL circuits as used for broadband customer access
- Design and configure an ADSL circuit from network boundary through to Mode 3 socket for an alarm system connected to a monitoring station
- Configure connection to ensure that an ADSL circuit is not disconnected for safety reasons when an alarm activation in conjunction with a Mode 3 socket disconnects the plain old telephone service (POTS) circuit
- Use a level 3 tester to verify correct termination and installation practices on a 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 the system and type of fault
- Diagnose fault in a methodical and safe manner using suitable fault-finding technique
- Isolate fault progressively to remove likely variables from diagnostic
- Determine options to rectify the fault and present to customer 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 an 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 a 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 from customer