Modification History
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Release 1 |
This version first released with ICT10 Integrated Telecommunications Training Package Version 3.0. |
Unit Descriptor
This unit describes the performance outcomes, skills and knowledge required to design a dense wavelength division multiplexing (DWDM) system in optical networks.
Application of the Unit
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.
Licensing/Regulatory Information
No licensing, legislative, regulatory or certification requirements apply to this unit at the time of endorsement but users should confirm requirements with the relevant federal, state or territory authority.
Pre-Requisites
Nil
Employability Skills Information
This unit contains employability skills.
Elements and Performance Criteria Pre-Content
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Elements |
Performance Criteria |
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Elements describe the essential outcomes of a unit of competency. |
Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide. |
Elements and Performance Criteria
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1. Obtain access to work site safely and with authority from site owner |
1.1 Obtain and review DWDM installation brief 1.2 Determine site access requirements 1.3 Notify parties if necessary to arrange access to site to discuss DWDM installation requirements 1.4 Assess site-specific safety requirements and enterprise work health and safety (WHS) processes and procedures |
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2. Prepare to install design DWDM units |
2.1 Survey location for DWDM installation and scope the installation parameters 2.2 Identify suitable location for DWDM equipment racks 2.3 Determine number and location of shelves and cards in the racks 2.4 Determine capacity of the optical distribution frames (ODFs), patching and network management system (NMS) connections for the installation 2.5 Determine power feed options |
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3. Design DWDM units and associated cabling |
3.1 Design DWDM racks, including locations and layout 3.2 Examine standards, practices and requirements for designing DWDM systems 3.3 Design DWDM shelf and card positions from customer and manufacturer documents 3.4 Design supporting patch panel and jumpering schemes 3.5 Include appropriate ancillary equipment and connections in design specifications 3.6 Prepare detailed design drawings for racks, shelves and cards from manufacturer and carrier documents 3.7 Prepare detailed design drawings for patching, jumpering and power feeds from manufacturer and carrier documents |
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4. Review design for compliance with standards and legislation |
4.1 Confirm that DWDM installation design meets the brief 4.2 Review installation design to ensure compliance with requirements of federal, state and local regulations, relevant legislation , codes and standards |
Required Skills and Knowledge
This section describes the skills and knowledge required for this unit.
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.
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.
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Overview of assessment |
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Critical aspects for assessment and evidence required to demonstrate competency in this unit |
Evidence of the ability to:
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Context of and specific resources for assessment |
Assessment must ensure:
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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:
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Guidance information for assessment |
Holistic assessment with other units relevant to the industry sector, workplace and job role is recommended, for example:
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. |
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.
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Site may include: |
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Equipment racks may include: |
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Power feed options may include: |
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Patch panels may include: |
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Ancillary equipment and connections may include: |
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Legislation may include: |
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Unit Sector(s)
Telecommunications - Telecommunications networks engineering
