AS CA S041.2:2015 pdf free
AS CA S041.2:2015 pdf free.Requirements for DSL Customer Equipment for connection to the Public Switched Telephone Network
Metallic twisted pair communications wire in a carrier’s network that provides connectivity between a customer’s premises and equipment in a Telecommunications Network.
The state of the Line Terminating Equipment when it has an electrical configuration that causes the current in the basic network loop to be at its maximum steady-state value. Can also be described as ‘off-hook’.Public Switched Telephone Network (PSTN) That part of the Telecommunications Network which enables any customer to establish a connection for voice frequency communication with any other customer either automatically or with operator assistance.
Note: The PSTN has a nominal transmission bandwidth of 3 kHz. Ring-in/Loop-out PSTN line A both-way call set-up line connection with the PSTN. Incoming signalling to CE is by the application of a ring signal at the PSTN exchange. Outgoing signalling from CE is by the application of a DC loop at the CE.Part2 of AS/CA S041 lists specific requirements that apply to CE that perform the function of a DSL modem. General requirements are covered in Part 1 of AS/CA S041.
The following requirements apply to CE which is a DSL modem, or part of a CE performing the function of a DSL modem.
PSTN line properties DSL Line Impedance The impedance that DSL modem CE presents to the line shall have a modulus of impedance greater than or equal to the impedance limits defined in the Table 1 and Figure 1.
With the modem powered up and in a quiet state, the impedance balance about earth of the CE:
(a) shall be greater than 46 dB over the frequency range 50 Hz to 3.4 kHz.; and
(b) should be greater than 52 dB over the frequency range 50 Hz to 3.4 kHz.
Compliance with Clause 5.2.2 should be checked by using the method described in Clause 6.3.2. This test is to be applied with respect to the TRC terminal and the protective earth terminal separately, and also with both connected together, where provided.AS CA S041.2 pdf free download.
