Assessor Resource

ICTTEN4246A
Design dense wavelength division multiplexing installations

Assessment tool

Version 1.0
Issue Date: May 2024


Telecommunications technical staff who design systems for the installation of long haul or metropolitan area DWDM equipment apply the skills and knowledge in this unit.

This unit is one in a sequence of units that cover network design activities, including:

design drawings and specifications

designing a DWDM system

designing infrastructure

estimating and quoting

site survey.

This unit describes the performance outcomes, skills and knowledge required to design a dense wavelength division multiplexing (DWDM) system in optical networks.

You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)

Prerequisites

Nil

Employability Skills

This unit contains employability skills.



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:

design a DWDM installation and associated cabling according to installation brief and installation site conditions

design DWDM system power and ground connections

complete and confirm installation design report.

Context of and specific resources for assessment

Assessment must ensure:

suitable site for DWDM equipment installation

access to tools and equipment required for installation

a range of optical fibres to suit the installation.

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 preparing designs for DWDM systems

review of DWDM designs prepared by the candidate

oral or written questioning of the candidate to assess knowledge of DWDM design practices.

Guidance information for assessment

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

ICTBWN3088B Install optical fibre splitters in fibre distribution hubs

ICTTEN3056A Install telecommunications network equipment.

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, assingnment, 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 liaise with internal and external personnel on technical and operational matters

literacy skills to interpret technical documentation

technical skills to:

assemble and secure standard telecommunications equipment rack, associated ironwork and optical fibre support ducting

clean optical fibre connector

examine optical fibre connector for contamination and assess whether cleaning is required

prepare and connect power and ground wires

use a digital multimeter to measure DC and AC voltage and to check continuity.

Required knowledge

DWDM principles of operation

electrostatic discharge: implications and precautions

optical fibre connector: types and characteristics

optical fibre: types and characteristics

principles of safe measurement of optical power from laser transmission systems

specific WHS requirements that impact on the safe inspection of optical connectors.

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.

Site may include:

optical add drop multiplexer (OADM) site

terminal site.

Equipment racks may include:

19 inch type

23 inch type

535 mm (ETSI rack) type.

Power feed options may include:

battery options

earthing requirements

primary power sources

rectifier and transformer requirements

separations form other services.

Patch panels may include:

rack mounted

wall mounted.

Ancillary equipment and connections may include:

air filter

alarm connections

C/L band splitter tray

cooling fan assembly

coupler tray

craft terminal

data communications connections

equaliser tray

ethernet hub

fibre management trays

optical attenuators

optical fibre patch cords

optical multiplexer

optical service channel tray

telemetry connections

variable optical attenuators.

Legislation may include:

AS Communications Cabling Manual (CCM) Volume 1

AS/NZS – relevant codes

Australian building codes and regulations

cabling security codes and regulations

Comms Alliance (CA) standards and codes

relevant international standards where they are enforced

technical standards AS/ACIF S008:2006 and AS/ACIF S009:2006

Telecommunications Act and code of practice

WHS Acts and relevant codes and standards.

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
Obtain and review DWDM installation brief 
Determine site access requirements 
Notify parties if necessary to arrange access to site to discuss DWDM installation requirements 
Assess site-specific safety requirements and enterprise work health and safety (WHS) processes and procedures 
Survey location for DWDM installation and scope the installation parameters 
Identify suitable location for DWDM equipment racks 
Determine number and location of shelves and cards in the racks 
Determine capacity of the optical distribution frames (ODFs), patching and network management system (NMS) connections for the installation 
Determine power feed options 
Design DWDM racks, including locations and layout 
Examine standards, practices and requirements for designing DWDM systems 
Design DWDM shelf and card positions from customer and manufacturer documents 
Design supporting patch panel and jumpering schemes 
Include appropriate ancillary equipment and connections in design specifications 
Prepare detailed design drawings for racks, shelves and cards from manufacturer and carrier documents 
Prepare detailed design drawings for patching, jumpering and power feeds from manufacturer and carrier documents 
Confirm that DWDM installation design meets the brief 
Review installation design to ensure compliance with requirements of federal, state and local regulations, relevant legislation, codes and standards 

Forms

Assessment Cover Sheet

ICTTEN4246A - Design dense wavelength division multiplexing installations
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:

Assessment Record Sheet

ICTTEN4246A - Design dense wavelength division multiplexing installations

Student name:

Student ID:

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

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: