Variation Of Gain Versus Level - Nortel Meridian 1 Succession 1000 Manual

Variation of gain versus level

Method 1
Small system transmission parameters
dBm0 during a five minute interval, under fully loaded busy hour PBX traffic
conditions.
Table 92
Impulse Noise
Time
5 Minutes
The variation of gain verses level (tracking error) measures how closely
changes in input levels causes corresponding changes in output levels.
The tracking error is measured in decibels and is defined as the deviation in
gain or loss through a range of input level relative to the gain or loss at the
reference frequency and level of 0 dBmO.
The two methods of measuring the tracking error are listed below.
When a noise signal as defined in CCITT, recommendation 0.131 is applied
at the input of any interface, the gain versus level deviation at the output
meets the limits set out in Table 93.
Table 93
Variation of gain versus level method 1
Input Level dBm0
-55 to -10
Alternatively, when a sine wave input in the frequency range 700 - 1100 Hz
is applied at the input of any interface, the gain vs level deviation at the output
meets the limits given in Table 94.
Level
>55 dBmO
Gain Variation dB
+/-0.5
Transmission Parameters
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