Specifications

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AS/CA S002:2010 COPYRIGHT

OCTOBER 2010

5.4.2.3 Voice frequency transmissions

The one-minute mean power level of signals transmitted to line

within the frequency range 300 Hz to 3.4 kHz except for DTMF signals,

supervisory tones, speech and music shall not exceed –10 dBm.

Compliance with Clause 5.4.2.3 should be checked by using the

methods described in Clauses 6.7.9.1, 6.7.9.2, and 6.7.9.3 with R in

Clause 6.7.9.2 and Figure 23 set to 600 Ω.

5.4.2.4 Signals greater than 3.4 kHz

5.4.2.4.1

The power spectral density (PSD) of signals beyond 3.4 kHz shall not

exceed the limit shown in Figure 4 when measured using a noise

power bandwidth of 10 kHz

Note: For compatibility with 12 kHz Meter Pulse detector circuitry, any

signal components generated in the 11 kHz to 13 kHz band should

not exceed 10 mV r.m.s. when measured with a 135 Ω termination

or open circuit.

Compliance with Clause 5.4.2.4.1 should be checked by using the

methods described in Clauses 6.7.9.1, 6.7.9.2, and 6.7.9.5(a) with R in

6.7.9.2 and Figure 23 set to 135 Ω.

5.4.2.4.2 The PSD of signals between 300 kHz and 30.175 MHz shall be either—

(a) less than –120 dBm/Hz; or

(b) less than the PSD limit minus 10dB (this is represented in Figure 4

by the dashed line limit).

when measured as the total average power within a 1 MHz sliding

window (1 MHz bandwidth) which is described in Table 4.

TABLE 4

1 MHz sliding window

Parameter Value

Bandwidth of sliding window 1 MHz

Reference frequency Lower edge

Step size 10 kHz

Start frequency 300 kHz

Stop frequency

30.175 MHz

Note 1: The Power Spectral Density requirements contained in Clause 5.4.2.4

are the same as in ANSI Standard T1.601 [10], and have been

included to ensure spectral compatibility of CE with DSL CE.

Note 2: The purpose of the sliding window measurement is to ensure that CE

does not generate noise up to the allowable limit across the entire

band.