Avaya S8700 Series, Maintenance Manual

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Signaling
Issue 1 May 2002 1-21 555-233-143
Quantization Distortion Loss
Table 1-11 lists the quantization distortion loss in the system for analog port to
analog port.
Table 1-12 lists the quantization distortion loss in the system for analog port to
digital port and digital port to analog port.
Terminating Impedance: 600 Ohms nominal
Trunk balance impedance (selectable): 600 Ohms nominal or complex Z
[350 Ohms + (1 k Ohms in parallel with 0.215uF)]
Impulse Noise
On 95% or more of all connections, the impulse noise is 0 count (hits) in 5 minutes
at +55 dBrnC (decibels above reference noise with C-filter) during the busy hour.
Table 1-11. Quantization Distortion Loss
Analog Port-to-Analog Port
Signal Level Distortion Loss
0 to -30 dBm0 >33 dB
-40 dBm0 >27 dB
-45 dBm0 >22 dB
Table 1-12. Quantization Distortion Loss
Analog Port-to-Digital Port or
Digital Port-to-Analog Port
Signal Level Distortion Loss
0 to -30 dBm0 >35 dB
-40 dBm0 >29 dB
-45 dBm0 >25 dB