Elements and Performance Criteria

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 - fire risk
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.
Calculations may include:
application of Ohm's law
engineering notation
power calculations
power consumption and efficiencies
voltage dividers
voltage, resistance and current calculations.
Electrical quantities may include:
current
power
voltage.
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.

EVIDENCE GUIDE
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 fault-finding techniques to locate cabling faults in telecommunications networks
use Ohm's 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
manufacturer's 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 fault-finding
oral or written questioning to assess knowledge of fundamental concepts of telecommunications practices and recurrent fault-finding 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:
ICTOHS2170A Follow OHS and environmental policy and procedures
ICTTEN2140A Use hand and power tools
ICTTEN2136A Install, maintain and modify customer premises communications cabling: ACMA Restricted Rule.

Aboriginal people and other people from a non-English 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.