List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
ELEMENT | PERFORMANCE CRITERIA |
Elements describe the essential outcomes. | Performance criteria describe the performance needed to demonstrate achievement of the element. |
1. Build and test direct current (DC) and alternating current (AC) circuits and telephone earthing | 1.1 Identify any hazards and work health and safety (WHS) issues for safe worksite and notify appropriate personnel 1.2 Connect series and parallel DC and AC circuit configuration following safe work practices 1.3 Choose appropriate test equipment and measure values of electrical quantities of circuits 1.4 Use calculations to verify measured values of electrical quantities in series and in parallel circuit configuration 1.5 Compare measured values to calculated values and determine reasons for any variations 1.6 Evaluate results and determine probable faults if relevant 1.7 Measure voltages present on telephone line and compare to exchange battery voltage 1.8 Measure resistance to earth, ensuring electrical earth in telecommunications installation |
2. Configure a safe ADSL circuit configuration with mode 3 connection | 2.1 Determine effects of bandwidth, frequency and attenuation on DSL circuitsas used for broadband client access 2.2 Design and configure ADSL circuit from network boundary through to mode 3 socket for alarm system connected to monitoring station 2.3 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 2.4 Use level 3 tester to verify correct termination and installation of digital transmission line |
3. Diagnose and rectify faults | 3.1 Determine urgency and impact of faults and required response timeframe for clearance 3.2 Identify type of fault and determine most probable causes of fault from data and historical trends where available 3.3 Select tools and test equipment relevant to system and type of fault 3.4 Diagnose fault in methodical and safe manner using suitable fault-finding technique 3.5 Isolate fault progressively to remove likely variables from diagnostic 3.6 Determine options to rectify fault and present to client for decision on rectification 3.7 Document test methods and results, and file with other system installation records |
4. Alter existing services | 4.1 Identify existing and proposed cable systems for altering services to existing installation 4.2 Plan alterations to cause minimal disruption to ongoing client activity 4.3 Use appropriate tools to safely terminate telecommunications cables and outlets 4.4 Identify and rectify any cable fault 4.5 Carry out alterations in safe manner and according to both mandatory and recommended industry standards 4.6 Identify risks posed by contact with remote power feeding services 4.7 Test alteration and obtain sign off with client |
Evidence of the ability to:
demonstrate the use of asymmetric digital subscriber line (ADSL) concepts in application and design
demonstrate fault-finding techniques to locate cabling faults in telecommunications networks
solve calculations for direct current (DC) and alternating current (AC) electrical problems
apply digital transmission principles and testing
demonstrate the use of ADSL test equipment
comply with all related work health and safety (WHS) requirements and work practices in the alteration of existing client services.
Note: If a specific volume or frequency is not stated, then evidence must be provided at least once.
To complete the unit requirements safely and effectively, the individual must:
discuss WHS issues and practices relating to ADSL circuits and working with electricity
describe typical electrical faults, fault-finding techniques and the type and use of testing equipment, including:
multimeter to measure direct current (DC) voltage, current and resistance
continuity tester to check continuity wiring
testing of open circuits and short circuits
ADSL test set
identify the appropriate tools used in ADSL cabling
describe the types of cable terminations used for a range of telecommunications cable applications
outline the following:
ADSL circuitry and configurations
digital transmission concepts, including installation practices and testing
procedures in altering existing services, including sign off
the distinction between analog and digital signals.
Gather evidence to demonstrate consistent performance in conditions that are safe and replicate the workplace. Noise levels, production flow, interruptions and time variances should be typical of those experienced in the telecommunications – cabling field of work and include access to:
special purpose tools, equipment and materials
a site where altering of existing services for a client may be conducted
appropriate AC and DC testing equipment
manufacturer’s documentation and equipment
correct tools and measuring equipment currently used in industry.
Assessors of this unit must satisfy the requirements for assessors in applicable vocational education and training legislation, frameworks and/or standards.