Assessor Resource

ICTOPN504
Test and commission a dense wavelength division multiplexing transmission system

Assessment tool

Version 1.0
Issue Date: March 2024


This unit describes the skills and knowledge required to test and commission optical transmission systems using dense wavelength division multiplexing (DWDM) technology.

It applies to individuals who work with telecommunications carriers, service providers, public utilities and broadcasting companies. They combine technical optical communications skills with broader organisational and administrative skills in a range of commercial contexts and environments.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

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



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.

Element

Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Prepare to commission DWDM transmission system

1.1 Implement hazard risk control measures

1.2 Review system specifications and technical data by identifying system operating parameters

1.3 Obtain and check tools and test equipment needed for the work

1.4 Verify all necessary equipment is installed, and circuit cards and filler cards are correctly located and seated

1.5 Check interconnecting fibres to optical multiplexers and shelves are intact and correctly routed

1.6 Establish communication between computer and DWDM shelf

1.7 Upload latest software release to each DWDM shelf in the network

2. Commission DWDM transmission system

2.1 Connect an optical test set and a physical optical loopback to the system, and select protocol compatible with DWDM hardware

2.2 Check connection status and that test set data is passing correctly

2.3 Monitor quality of received signal by setting performance monitoring (PM) features and retrieve PM counts

2.4 Verify no errors are counted by the test set during a long term stability test while customer input signal is set to the worst case (minimum) power level

2.5 Verify no alarms are generated during long term stability test period

2.6 Dispose of antistatic packaging to minimise environmental impact

3. Complete test and commissioning documentation

3.1 Finalise documentation on commissioning test results

3.2 Present results to appropriate person according to established procedures

Evidence of ability to:

plan and coordinate commissioning

test and commission dense wavelength division multiplexing (DWDM) transmission system

complete commissioning documentation.

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:

explain possible causes of alarms in long term stability test

summarise principles of operation of DWDM

explain standard electrostatic discharge precautions

outline features and operating requirements of test equipment including:

a hand-held optical power meter

a transmission test set

an optical spectrum analyser

describe functions of an optical add drop multiplexer

explain how to set up the following:

internet protocol (IP) addressing

subnet mask

dynamic host configuration protocol (DHCP)

default gateway

summarise the International Telecommunications Union (ITU) wavelength grid for DWDM

identify optical fibre connector types and characteristics

identify optical fibre types and characteristics

explain path protection and protection switching

summarise physical optical loopbacks and software loopbacks

describe protocols used on optical DWDM systems

summarise ring topologies and linear network topologies

outline specific health and safety requirements that impact the safe inspection of optical connectors and the safe measurement of optical power from laser transmission systems.

Gather evidence to demonstrate consistent performance in conditions that are safe and replicate the workplace. Noise levels, production flow, interruptions and time variances must be typical of those experienced in the Telecommunications – Optical Networks field of work and include access to:

test equipment currently used in industry

manufacturer’s technical documentation.

Assessors of this unit must satisfy the requirements for assessors in applicable vocational education and training legislation, frameworks and/or standards.


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.

Element

Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1. Prepare to commission DWDM transmission system

1.1 Implement hazard risk control measures

1.2 Review system specifications and technical data by identifying system operating parameters

1.3 Obtain and check tools and test equipment needed for the work

1.4 Verify all necessary equipment is installed, and circuit cards and filler cards are correctly located and seated

1.5 Check interconnecting fibres to optical multiplexers and shelves are intact and correctly routed

1.6 Establish communication between computer and DWDM shelf

1.7 Upload latest software release to each DWDM shelf in the network

2. Commission DWDM transmission system

2.1 Connect an optical test set and a physical optical loopback to the system, and select protocol compatible with DWDM hardware

2.2 Check connection status and that test set data is passing correctly

2.3 Monitor quality of received signal by setting performance monitoring (PM) features and retrieve PM counts

2.4 Verify no errors are counted by the test set during a long term stability test while customer input signal is set to the worst case (minimum) power level

2.5 Verify no alarms are generated during long term stability test period

2.6 Dispose of antistatic packaging to minimise environmental impact

3. Complete test and commissioning documentation

3.1 Finalise documentation on commissioning test results

3.2 Present results to appropriate person according to established procedures

Evidence of ability to:

plan and coordinate commissioning

test and commission dense wavelength division multiplexing (DWDM) transmission system

complete commissioning documentation.

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:

explain possible causes of alarms in long term stability test

summarise principles of operation of DWDM

explain standard electrostatic discharge precautions

outline features and operating requirements of test equipment including:

a hand-held optical power meter

a transmission test set

an optical spectrum analyser

describe functions of an optical add drop multiplexer

explain how to set up the following:

internet protocol (IP) addressing

subnet mask

dynamic host configuration protocol (DHCP)

default gateway

summarise the International Telecommunications Union (ITU) wavelength grid for DWDM

identify optical fibre connector types and characteristics

identify optical fibre types and characteristics

explain path protection and protection switching

summarise physical optical loopbacks and software loopbacks

describe protocols used on optical DWDM systems

summarise ring topologies and linear network topologies

outline specific health and safety requirements that impact the safe inspection of optical connectors and the safe measurement of optical power from laser transmission systems.

Gather evidence to demonstrate consistent performance in conditions that are safe and replicate the workplace. Noise levels, production flow, interruptions and time variances must be typical of those experienced in the Telecommunications – Optical Networks field of work and include access to:

test equipment currently used in industry

manufacturer’s technical documentation.

Assessors of this unit must satisfy the requirements for assessors in applicable vocational education and training legislation, frameworks and/or 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
Implement hazard risk control measures 
Review system specifications and technical data by identifying system operating parameters 
Obtain and check tools and test equipment needed for the work 
Verify all necessary equipment is installed, and circuit cards and filler cards are correctly located and seated 
Check interconnecting fibres to optical multiplexers and shelves are intact and correctly routed 
Establish communication between computer and DWDM shelf 
Upload latest software release to each DWDM shelf in the network 
Connect an optical test set and a physical optical loopback to the system, and select protocol compatible with DWDM hardware 
Check connection status and that test set data is passing correctly 
Monitor quality of received signal by setting performance monitoring (PM) features and retrieve PM counts 
Verify no errors are counted by the test set during a long term stability test while customer input signal is set to the worst case (minimum) power level 
Verify no alarms are generated during long term stability test period 
Dispose of antistatic packaging to minimise environmental impact 
Finalise documentation on commissioning test results 
Present results to appropriate person according to established procedures 

Forms

Assessment Cover Sheet

ICTOPN504 - Test and commission a dense wavelength division multiplexing transmission system
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

ICTOPN504 - Test and commission a dense wavelength division multiplexing transmission system

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: