Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

ICTCBL2139B Mapping and Delivery Guide
Apply safe technical work practices for cabling registration when configuring ADSL circuits

Version 1.0
Issue Date: April 2024


Qualification -
Unit of Competency ICTCBL2139B - Apply safe technical work practices for cabling registration when configuring ADSL circuits
Description This unit describes the performance outcomes, skills and knowledge required to gain proficiency in current work practices and methodologies used for Open and Restricted Cabling Registration.It covers safe installation and alteration practices for configuring the Carrier NTD/ADSL Filter and Modem/Mode 3 socket/cabling for an alarm system connected to a monitoring station using a carrier line supporting an asymmetric digital subscriber line (ADSL) modem service.
Employability Skills This unit contains employability skills.
Learning Outcomes and Application Cablers, installers and technicians in the field apply the skills and knowledge in this unit in the context of technology convergence and digital subscriber lines (DSL) technologies as applied in the telecommunications industry.It can be applied to installation, maintenance or upgrades of existing systems in voice, data or security systems.
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.
Prerequisites/co-requisites Not applicable
Competency Field
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: 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
       
Element: 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
       
Element: 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
       
Element: 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
       


Evidence Required

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.

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:

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

ICTTEN2140B Use hand and power tools

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

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.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Required skills

communication skills to listen and liaise with clients on technical and operational matters related to sign-off 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 fault-finding

problem-solving skills to apply AC and DC fault-finding 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 fault-finding tasks

alter services.

Required knowledge

application of binary number conversion and interpretation

AC and DC electrical quantities, including SI units, OHS issues and the application of Ohm’s law

fault-finding 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

overview of:

ADSL circuitry and configurations

digital transmission concepts, including installation practices and testing

procedures in altering existing services, including sign-off

difference between analog and digital signals.

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.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
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 
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 
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 
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 

Forms

Assessment Cover Sheet

ICTCBL2139B - Apply safe technical work practices for cabling registration when configuring ADSL circuits
Assessment task 1: [title]

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Assessment Record Sheet

ICTCBL2139B - Apply safe technical work practices for cabling registration when configuring ADSL circuits

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Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

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