NZQA registered unit standard
28868 version 1
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Title
Maintain, locate faults in, and verify performance of complex and nonstandard telecommunications core network systems
Level
4
Purpose
Credits
15
This unit standard covers the skills for people engaged in the
provisioning and restoration of complex and/or non-standard
telecommunications core networks across a broad range of
situations.
People credited with this unit standard are able to:
–
co-ordinate routine maintenance and fault location on
core network systems or services;
–
restore faulty core network systems or services to normal
operation; and
–
update maintenance records for core network systems or
services following maintenance or fault correction in
accordance with company requirements.
Classification
Telecommunications > Telecommunications - Service Delivery
Available grade
Achieved
Entry information
Critical health and
safety prerequisites
Unit 27911, Demonstrate knowledge of workplace safety in an
electrotechnology or telecommunications environment, or
demonstrate equivalent knowledge and skills.
Explanatory notes
1
This unit standard has been designed for learning and assessment on-job.
2
References
Electricity Act 1992;
Electricity (Safety) Regulations 2010;
Search and Surveillance Act 2012;
Telecommunications Act 2001;
AS/NZS 3080: Information technology - Generic cabling for customer premises;
AS/NZS 3084: Telecommunications installations - Telecommunications pathways
and spaces for commercial buildings;
Telecommunications Carriers’ Forum Code for Residential, SOHO and Multi-dwelling
Premises Wiring (“Premises Wiring Code of Practice”);
National Code of Practice for Utility Operators’ Access to Transport Corridors;
and all subsequent amendments and replacements.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28868 version 1
Page 2 of 5
3
Definitions
Cable – copper cable including coaxial, fibre optic cable.
Complex or non-standard – three or more components and/or services used together
in core networks or enterprise solutions systems.
Co-ordinate – includes supervision, facilitation, and active involvement in the work to
be completed.
Core network service – in this unit standard means – complex and/or non-standard
telecommunications core networks.
ESD – electrostatic discharge.
FOG – Fibre Optic Grid.
GIS – Geographical Information Systems.
Industry practice – those practices that competent practitioners within the industry
recognise as current industry best practice.
NOC – network operation centre.
SOHO – Small Office Home Office.
4
Training on instruments, equipment and software used for testing and performance
management of complex or non-standard networks are specific to a broad range of
situations and are part of supplier agreements. This training will form part of
company processes and will be ongoing to ensure currency of knowledge and
competency.
5
Range
a The use of mathematics is not required except where calculation is specifically
mentioned.
b Evidence against this unit standard must be in accordance with industry practice
and, where appropriate, must reflect environmental conditions.
c Evidence of a total of six different faults across six separate core network
systems, one fault in each system.
Outcomes and evidence requirements
Outcome 1
Co-ordinate routine maintenance and fault location on core network systems or services.
Evidence requirements
1.1
Perform preparation tasks before leaving for a site.
Range
may include but not limited to – collection of fault information,
system performance, site access including permits and consents,
health and safety, obtain spares, obtain tools, remote log in and
alarm checking, other site alarm checks.
Evidence of three is required.
1.2
Evaluate remote restoration methods and procedures and apply as appropriate.
1.3
Identify, co-ordinate, and apply site arrival procedures.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
Range
1.4
28868 version 1
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includes but not limited to log in as on-site, visual inspection of site
for damage, visual inspection of alarms, determine appropriate
diagnostic procedure, health and safety procedures.
Evidence of three is required.
Carry out visual inspection and maintenance checks on arrival.
Range
equipment integrity, corrosion, bonding and earthing, cable
management, weather proofing, connections, dust, equipment or
ventilation system filters, air flow, connector condition, fibre
hygiene.
1.5
Co-ordinate and/or select diagnostic tools and/or equipment.
1.6
Apply logical fault finding techniques to identify the cause of the faults.
Range
may include but not limited to – alarms, half split, step by step,
flowcharts, manufacturers' diagnostic procedures, resetting
modules.
Evidence of two is required.
1.7
Ensure tests do not impact on the performance of existing services.
1.8
Interpret test results to identify faulty system components.
Range
may include but is not limited to – modules, cables, components,
configuration, cooling systems, power and backup systems.
Evidence of one is required.
Outcome 2
Restore faulty core network systems or services to normal operation.
Evidence requirements
2.1
Co-ordinate the repair or replacement of faulty system modules and/or
components in accordance with company procedures.
2.2
Ensure best practice procedures for replacing faulty components are followed.
Range
2.3
may include but is not limited to – physical and software
configuration recovery, replacement of modules, ESD protection,
module re-configuration, system status evaluation, fault
monitoring.
Evidence of two is required.
Carry out operational and performance verification tests after repair.
Range
The Skills Organisation
SSB Code 100401
may include but is not limited to – physical and software
configuration, replacement of modules and/or components,
associated services and equipment, evaluation of system status,
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28868 version 1
Page 4 of 5
evaluation of system performance, fault monitoring, hand back of
service.
Evidence of three is required.
2.4
Co-ordinate site departure procedures in accordance with industry practice.
may includes but is not limited to – alarm checks, systems
restored to automatic, alarm services restored to NOC, ventilation
systems restored to normal.
Evidence of two is required.
Range
2.5
Co-ordinate post job tasks.
may include but is not limited to – arrange faulty unit repairs, log
and file information, customer reports, close out job tasks in
management systems.
Evidence of two is required.
Range
Outcome 3
Update maintenance records for core network systems or services following maintenance
or fault correction in accordance with company requirements.
Range
may include but is not limited to – cable distribution plans, underground cable
plans, FOG plans, GIS, cable pair sheets, customer records, photographs,
cable network alterations.
Evidence of three is required.
Evidence requirements
3.1
Record details of faults and remedial action.
3.2
Record changes made to equipment during fault correction.
3.3
Hand over restored equipment to and obtain acceptance from customer.
Planned review date
31 December 2020
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
16 July 2015
N/A
Consent and Moderation Requirements (CMR) reference
0003
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
28868 version 1
Page 5 of 5
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact The Skills Organisation reviewcomments@skills.org.nz if you wish to
suggest changes to the content of this unit standard.
The Skills Organisation
SSB Code 100401
 New Zealand Qualifications Authority 2016