NZQA registered unit standard
27971 version 1
Page 1 of 6
Title
Demonstrate knowledge of telecommunications core network
systems and services
Level
3
Purpose
Credits
15
This unit standard covers basic underpinning knowledge for
people engaged in the provisioning and restoration of
telecommunications core networks (fixed and mobile networks).
People credited with this unit standard are able to demonstrate:
–
basic knowledge of telecommunications bearer systems;
–
basic knowledge of broadcast systems;
–
basic knowledge of the use of TCP/IP and Ethernet in
core networks;
–
basic knowledge of a current network and element
management and monitoring systems for
telecommunications core networks;
–
basic knowledge of the common power and engineering
services support environment for telecommunications
core networks; and
–
knowledge of the impact of an emerging or converging
technology in core networks.
Classification
Telecommunications > Telecommunications - Service Delivery
Available grade
Achieved
Entry information
Recommended skills
and knowledge
Unit 27972, Provision, commission, diagnose and restore
telecommunication core network technology and services.
Explanatory notes
1
Evidence against this unit standard may be demonstrated through either knowledge
assessment or practical assessment. The use of diverse forms of evidence in
assessment against this unit standard is encouraged. Evidence must be in
accordance with industry practice and, where appropriate, must reflect environmental
considerations.
2
The term basic knowledge is used to describe the underpinning knowledge required
by candidates to support the range of practical installation and maintenance activities
assessed by Unit 27972, Provision, commission, diagnose and restore
telecommunication core network technology and services.
The Skills Organisation
SSB Code 100401
New Zealand Qualifications Authority 2016
NZQA registered unit standard
27971 version 1
Page 2 of 6
3
References
Electricity Act 1992;
Electricity (Safety) Regulations 2010;
Search and Surveillance Act 2012;
Telecommunications Act 2001;
and all subsequent amendments and replacements.
4
Definitions
ADSL – Asynchronous Digital Subscriber Line.
Converging Technology – any existing technologies that are integrated to provide a
new service including convergence of any previously separately existing technologies
that now share resources and interact with each other.
Emerging technology – any technology which is at the development stage, or in early
stages of production and/or commercial use overseas, but is not yet used widely or
commercially in New Zealand.
ETOM – Enhanced Telecommunications Operations Map.
FTP – File Transfer Protocol.
GIS – Geographical Information System.
Industry practice – those practices which competent practitioners within the industry
recognise as current industry best practice.
IP – Internet Protocol.
ITU – International Telecommunications Union.
PCM – Pulse Code Modulation systems.
POTS – Plain Old Telephone Service.
TCP – Transmission Control Protocol.
UDP – User Datagram Protocol.
VDSL – very high bit-rate digital subscriber line.
xDSL – digital subscriber line. Where x =
A – asynchronous
H – high bit rate
S – synchronous
SH – synchronous high bit rate
V – very high bit rate.
VoIP – Voice over Internet Protocol.
5
Range
The use of mathematics is not required except where calculation is specifically
mentioned.
Outcomes and evidence requirements
Outcome 1
Demonstrate basic knowledge of telecommunications bearer systems.
Evidence requirements
1.1
Explain the characteristics and limitations of copper cable for use in POTS,
xDSL, and PCM systems.
Range
The Skills Organisation
SSB Code 100401
characteristics and limitations include – line constants, typical
New Zealand Qualifications Authority 2016
NZQA registered unit standard
27971 version 1
Page 3 of 6
impedance, variation of loss with distance and conductor size,
maximum effective distance, effect of cable multiples, electrical
interference.
1.2
Outline the principles of operation of digital subscriber line systems (xDSL).
Range
1.3
Outline the PCM bearer system principles and practices.
Range
1.4
digital subscriber may include but is not limited to – ADSL, VDSL.
line signal protocols, line terminal equipment, power feeding
equipment, regeneration, permissible error rates, crosstalk
limitations, distance limitations.
Outline the operation of a digital fibre transport system used in New Zealand
with the aid of a labelled block diagram indicating major functions.
Range
CWDM, DWDM, SDH, PDH.
Outcome 2
Demonstrate basic knowledge of broadcast systems.
Evidence requirements
2.1
Outline the operation of broadcast systems with the aid of a labelled block
diagram indicating major components.
Range
analogue and digital radio, analogue and digital TV.
Outcome 3
Demonstrate basic knowledge of the use of TCP/IP and Ethernet in core networks.
Range
may include but is not limited to – addressing, routing, switching, VoIP.
Evidence requirements
3.1
Identify protocols used in core networks and explain the reasons for their use.
Range
may include but is not limited to – TCP/IP, Ethernet, TCP, UDP,
broadcast.
3.2
Identify hardware used in TCP/IP and Ethernet networks and explain their
function.
3.3
Identify software used to configure hardware and explain the relevant features.
Range
3.4
may include but is not limited to – craft terminal, FTP, web
interface.
Provide basic IP networking and configuration for three given situations.
The Skills Organisation
SSB Code 100401
New Zealand Qualifications Authority 2016
NZQA registered unit standard
27971 version 1
Page 4 of 6
Outcome 4
Demonstrate basic knowledge of a current network and element management and
monitoring systems for telecommunications core networks.
Evidence requirements
4.1
Explain network operations centre and network administration activities with
reference to core networks.
4.2
Explain the principles of operation of management networks and element
management devices.
Range
management devices may include but are not limited to – interface
management and data collection units, element managers,
monitoring systems, test and measurement environment.
4.3
Outline proactive, reactive, and condition based maintenance practices.
4.4
Explain network incident management escalation hierarchy, with particular
reference to the tiered structure.
Range
4.5
ITU or ETOM reference model.
Explain network records and inventory systems and practices.
Range
may include but is not limited to – GIS database for physical
network inventory, logical network database for service inventory,
fibre optic grid plans.
Outcome 5
Demonstrate basic knowledge of common power and engineering services support
environment for telecommunications core networks.
Evidence requirements
5.1
Outline typical power supply systems with reference to battery backup and
emergency generators.
5.2
Outline the operation of security access and fire protection systems with
reference to purpose and function.
Range
fire protection – gas suppression, sprinklers, smoke alarms.
5.3
Outline the purpose and operation of air-conditioning systems in relation to
equipment rooms.
5.4
Outline the purpose and operation of seismic infrastructure in relation to
equipment rooms.
The Skills Organisation
SSB Code 100401
New Zealand Qualifications Authority 2016
NZQA registered unit standard
27971 version 1
Page 5 of 6
5.5
Outline the purpose and operation of underground pits and ducts,
telecommunications towers and masts, and passive and active roadside
cabinets in relation to equipment housing.
5.6
Outline the cable distribution practices in a telecommunications distribution
room.
Range
power distribution, earthing arrangements, cable management
practices for fibre and copper.
Outcome 6
Demonstrate knowledge of the impact of an emerging or converging technology in core
networks.
Evidence requirements
6.1
Describe an emerging or converging technology that may impact on existing
core networks with reference to purpose, facilities offered, and how the
technology will impact and/or integrate with existing core technology facilities
and or services.
Range
selected technology should be one that is likely to be applied in
the New Zealand environment.
Planned review date
31 December 2017
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
18 July 2013
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
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
The Skills Organisation
SSB Code 100401
New Zealand Qualifications Authority 2016
NZQA registered unit standard
27971 version 1
Page 6 of 6
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