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Elements and Performance Criteria

Required Skills

Required skills

communication skills to listen and liaise with clients on technical and operational matters related to signoff for alteration of services

literacy skills to interpret technical documentation and incorporate technical language into written tasks such as reporting on recommendations to minimise recurrent fault occurrence

numeracy skills to

interpret technical data such as specifications of telecommunications networks

perform mathematical problem solving in AC and DC tasks and faultfinding

problemsolving skills to apply AC and DC faultfinding techniques to different situations

research skills to access technical information and sources to understand fundamental principles of telecommunication networks

safety awareness skills to

apply precautions and required action to minimise control or eliminate hazards that may exist during work activities

select and use required personal protective equipment conforming to industry and OHS standards

work systematically with required attention to detail without injury to self or others or damage to goods or equipment

technical skills to

select and use appropriate test equipment and practices to perform basic AC and DC testing

perform faultfinding tasks

Required knowledge

application of binary number conversion and interpretation

AC and DC electrical quantities including SI units OHS issues and the application of Ohms law

faultfinding techniques and use of testing equipment including

multimeter to measure DC voltage current and resistance

continuity tester to check continuity wiring

testing of open circuits and short circuits

ADSL circuitry and configurations

digital transmission concepts including installation practices and testing

procedures in altering existing services including signoff

difference between analog and digital signals

Evidence Required

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria required skills and knowledge range statement and the Assessment Guidelines for the Training Package

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Evidence of the ability to

use concepts of ADSL application and design

use faultfinding techniques to locate cabling faults in telecommunications networks

use Ohms law to solve DC and AC electrical problems

apply digital transmission principles and testing

use test equipment

alter existing customer services complying with all related OHS requirements and work practices

Context of and specific resources for assessment

Assessment must ensure

a site where altering existing services for a customer may be conducted

appropriate AC and DC testing equipment

manufacturers documentation and equipment

correct tools and measuring equipment currently used in industry

Method of assessment

A range of assessment methods should be used to assess practical skills and knowledge The following examples are appropriate for this unit

direct observation of the candidate undertaking AC and DC measurements and faultfinding

oral or written questioning to assess knowledge of fundamental concepts of telecommunications practices and recurrent faultfinding techniques

evaluation of written ADSL design concepts

direct observation of visual checks and evaluation of written procedures in altering existing services

direct observation of the candidate altering existing customer services

Guidance information for assessment

Holistic assessment with other units relevant to the industry sector workplace and job role is recommended for example

ICTCBLB Install maintain and modify customer premises communications cabling ACMA Restricted Rule

ICTCBL2136B Install, maintain and modify customer premises communications cabling: ACMA Restricted Rule

ICTTENB Use hand and power tools

ICTTEN2140B Use hand and power tools

ICTWHSB Follow work health and safety and environmental policies and procedures

ICTWHS2170B Follow work health and safety and environmental policies and procedures.

Aboriginal people and other people from a nonEnglish speaking background may have second language issues

Access must be provided to appropriate learning and assessment support when required

Assessment processes and techniques must be culturally appropriate and appropriate to the oral communication skill level and language and literacy capacity of the candidate and the work being performed

In all cases where practical assessment is used it will be combined with targeted questioning to assess required knowledge Questioning techniques should not require language literacy and numeracy skills beyond those required in this unit of competency

Where applicable physical resources should include equipment modified for people with special needs

Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

DC and AC circuit configuration may include:	DC circuit: resistances single DC voltage source: battery DC voltage supply solar panel AC circuit: inductors, capacitors and resistances single AC voltage source: AC generator AC voltage supply alternator low voltage (LV) AC source.
Safe work practices may relate to:	component tolerances are not exceeded correct use of power supply and test equipment identifying any electrical safety hazards isolation from main supply overdrawing of current power down during set-up procedure well laid out circuitry: avoid contact with external sources avoid shorting of components.
Test equipment may include:	digital multimeter multimeter ohmmeter voltmeter.
Electrical quantities may include:	current power voltage.
Calculations may include:	application of Ohm’s law engineering notation power calculations power consumption and efficiencies voltage dividers voltage, resistance and current calculations.
Probable faults may include:	faulty component faulty source voltage open circuits short circuits.
xDSL circuits may include:	ADSL ADSL2 ADSL2+.
ADSL circuit may include:	ADSL filters connected at a main distribution frame (MDF) central filters and splitters installed at a network termination device (NTD) central filters and splitters installed internally domestic installations and small shops that use a telecommunications outlet (TO) or NTD as a network boundary DSL and Mode 3 connections.
Level 3 tester may include:	continuity F set local area network (LAN) Cat tester split pair wire map.
Type of fault may include:	cable electrical hardware software system.
Fault-finding technique may include:	half term testing isolation of sections logical mapping using testing equipment.
Altering services may include:	changing cable installation client interaction identifying mission critical services identifying remote power feeding upgrading a service.
Appropriate tools may include:	basic hand tools F sets for cable identification Krone termination tool multimeter wire strippers.
Terminate telecommunications cables and outlets may include:	stripping a: 2 pair internal rated 3 pair external rated cable 4 pair Category 5 unshielded twisted pair (UTP) cable terminating a TO termination using screw terminals.
Cable fault may include:	earth contact foreign battery no voltage open circuit short circuit split pair.