ACMA Test - Practice Questions Flashcards
Deregulation of the Telecomms industry in the 1980s allowed private contractors to install customer cabling on the customer side of the _____.
Network Boundary
What is the name of the Commonwealth Act responsible for the Telecomms industry?
Telecommunications Act 1997
List the two documents from the Commonwealth Act giving guidance to the Telecomms industry.
1: S009 Cabling Provider Rules
2: S008 Telecommunications Labelling Notice
Name the mandatory standard compiled to underpin the Telecommunications Labelling Notice (TLN)
S008
Name the mandatory standard compiled to underpin the Cabling Provider Rules (CPR)
S009
What is the name of the body responsible for compiling the mandatory standards?
Communications Alliance
Who is the Telecommunications Regulatory Body, ie the body responsible for enforcing the mandatory standards?
Australia Communications Media Authority
List three types of network boundary for the carrier’s network.
1: 1st socket
2: NTD
3: MDF
How do surge protection devices utilizing gas arresters operate?
Provide a bypass (shunt) path of the over-voltage to earth
To what type of earth are over-voltage devices connected?
Protective earth
What two types of surge suppressor are approved for use on the customer side of the network boundary?
Class 1 and Class 3
Where surge suppression devices are installed, how shall the earthing conductor between the device and the earth bar in the electrical switchboard be treated?
Should not exceed 10m, thought 1.5m or less is preferred for more effective protection
In accordance with AS/CA S009, what is the required minimum conductor size for surge suppression devices that are installed for protection of end users?
6mm sq
How shall surge suppression devices for the protection of end users be installed at the cabling point of entry into a building?
At the first cable connection point within the building, ie at the MDF
In accordance with AS/CA S009, connection of surge suppression devices utilizing a 2.5mm sq green/yellow conductor for connection to a protective earth is deemed to:
Give protection against damage to customer equipment
What is the minimum size earth conductor required when connecting surge protection for customer equipment?
2.5mm sq
What is the name of the equipotential bond that connects to the CET?
Communications Bonding Conductor
To which demarcation point on a Communications Bonding Conductor is a communications cabler authorized to work?
CET
What is the required colour of a protective earth conductor?
Green/yellow
What is the required colour of a TRC?
Violet
What is the required colour of a CES?
Green/yellow
Identify the earthing conductor supplied for the purpose of protection and functional requirements.
CES
Connection to a TFEE requires a conductor that is coloured..
Violet
What is the minimum size of a TFEE conductor?
4mm sq
What is the maximum resistance of the equipotential bond for a TRC?
0.5 ohm
What is the maximum resistance of a CES?
1 ohm
What is the maximum resistance of a TRC?
5 ohm
What are the three points of connection to the protective earthing system for the equipotential bond of a TRC?
Main earth bar, main earth conductor, earth electrode
AS/CA S009 requires metallic barriers for communication terminations and LV terminations..
To be earthed in accordance with AS/CA S009 section 20
AS/CA S009 states that metallic enclosures, backmounts and distributors..
Are not required to be earthed but may be earthed for operational requirements
What electrical ‘noise’ is induced into a telecomms circuit arising from electromagnetic induction due to radio waves?
Radio Frequency Interference - RFI
What is the minimum size earth conductor for a metallic enclosure, backmount or distributor?
2.5mm sq
Where a separate building with an electrical switchboard requires a TRC, a new TRC is to be installed - True or False?
True
Earth bars and terminals in a telecommunications earthing system must be capable of terminating cables with a cross-sectional area of 16mm sq, True or False?
False
AS/CA S009 requires that a TRC has a minimum of two direct connections to the building earth system, True or False?
False
Requirements for installation of a TRC are goverened by AS/NZS 3000, True or False?
False
A customer asks to have installed a new phone point in a second bedroom, plus external ringer so the phone can be heard in the backyard. Where may a Restricted CPR registered person perform customer cabling work?
On the customer side of the network boundary
May a restricted CPR registered person perform work on the customer side of the MDF?
No
Under what circumstances may an unregistered person perform cabling work?
When they are under constant and direct supervision by a registered cabling provider
Telecommunications cable shall be physically distinguishable from products used for distribution or connection of AC mains supply, True or False?
True
All cabling products (connecting hardware) intended for connection to a telecommunications network shall…
Have the manufacturer’s name, identification number or part number displayed on the product and RCM where applicable
What is the minimum separation between LV power cabling and adjacent Telecommunications cabling/terminations, when utilizing a shared housing?
150mm or a permanent, rigidly-fixed barrier of durable insulating material
When installing communications outlets on wall surfaces or skirting boards near power points, what must be ensured?
The associated cables for both systems are separated within any wall cavity by 500mm or a compliant barrier
LV power is installed on a customer’s two private poles using uninsulated cable, from the main building to two sheds. To install an extension of their telephone service using two single cables from the last pole to each shed, utilizing an aerial distribution enclosure. This enclosure shall be mounted _____ (above/below?) the power lines, and separated by _____. It shall also be double insulated, True or False?
Below, 1.2m
True
While running customer cables, you must consider pipes containing corrosive liquids and flammable gasses to be classified as what? How does this effect your installation?
Hazardous service, segregation must be maintained per S009
A cable duct contains various services in different channels. You intend to use this duct to run a cable from a PC to a printer. What must you consider?
Avoid cables of an electrical system with LV voltage for power points as it is hazardous
What are the range limits of Low Voltage?
Above 42.4 VAC (rms) and 60 VDS, up to 1000 VAC (rms) or 1500 VDC
When attending a service call to install an additional modular socket, the cabling shall be installed…
In accordance with AS/CA S009 and using accepted principles of sound and safe practice
Where the lead-in cable terminates on a connection block (ie protector block, facia block or jointing block) from which the cable is extended to the first telephone socket, the network boundary will be…
The terminals within the first telephone socket
A commercial premises has a telephone system, a LAN, and a fibre link to an adjacent building. A person holding a Restricted cabling license may…
Cable from a device that complies with the Act, but not via a distributor
Mandatory requirements of the ACMA Technical Standards are denoted by the word(s)…
Shall or Shall not
On a customer premises you find the cabling to be messy and separation in ducts has not been maintain. What must you advise them, in regards to addition/alterations made to an existing installation?
The current technical standards, meaning that a new duct must be installed for the extension cabling in order to separate them from other hazardous services in the existing duct
From whom must you obtain permission prior to installing Telecommunications cabling between premises in public areas?
Any stake holders as required ie local council, main roads department, environment and conservation…
Telecomms cables may be accommodated in the same conduit, duct or skirting as hazardous electrical services without a physical separation, True or False?
False
Your customer cables are to be installed in a 100mm grey conduit. The construction of the conduit shall be such that the Telecomms cables are separated from Low Voltage by…
A barrier of either durable insulating material or metal
Customer cables to be installed as surface cabling in ceilings or in concealed locations such as wall cavities without a conduit enclosure shall be separated for their entire length from Low Voltage services by…
50mm or a barrier of durable insulating material or metal which may be connected to protective earth
A core through the slab 450mm in diameter has a multi-core HV cable installed. Your customer cables shall be separated from the HV cables by…
300mm or may be reduced to 150mm if using an interposing barrier
A single core HV cable is installed on a cable tray. Your customer cables shall be separated from the HV cable by…
450mm irrespective of whether there is an interposing barrier
An interposing barrier between customer cables and multi-core HV cables shall be such that at every point, the shortest path from the sheath of both cables shall be at least…
175mm
Metallic barriers between Telecomms cables and HV cables shall be bonded to…
Protective earthing conductor or Communication Earthing System
