Nortel Networks Option 11C User Manual
Page 170 of 544
Transmission parameters
Reference frequency:
•
700 - 1100 Hz
•
820 Hz A-Law
•
1024 Hz µ-Law
Method 2
With a sine wave in the frequency range of 700-1100 Hz applied to the input
port of any interface, the variation of the gain versus level at the output port
meets the limits given in Table 49.
port of any interface, the variation of the gain versus level at the output port
meets the limits given in Table 49.
Reference frequency:
•
700-1100 Hz
•
820 Hz A-Law
•
1024 Hz µ-Law
Total distortion including quantization distortion
The quantization distortion is the difference between the original analog
signal and the analog signal (signal plus noise) resulting from the decoding
process. There are two methods of measuring the quantization distortion:
signal and the analog signal (signal plus noise) resulting from the decoding
process. There are two methods of measuring the quantization distortion:
Table 48
Variation of gain versus level method 1
Variation of gain versus level method 1
Input Level
dBm0
Gain Variation
dB
-10 to +3
+/-0.5
Table 49
Variation of gain versus level method 2
Variation of gain versus level method 2
Input Level dBm0
Gain Variation dB
-37 to -50
+/-1
0 to 37
+/-0.5