Nortel Networks Option 11C Group Delay

Transmissionparameters Page173 of 544
Option11C and 11C Mini TechnicalReference Guide
Group Delay
Absolute group delay
The absolute group delay is the minimum group delay measured in the
frequency band 500-2800 Hz. The absolute group delay meets the limits
given in Table52.
Group delay distortion
The group delay distortion is the difference between the absolute group delay
(minimum delay) and the group delay in the range 500 to 2800 Hz.
Table 5 2
Absolute group delay
Interface type Absolute Group
Delay Microseconds
Analog — Analog 3000
Analog — Digital 2700
Digital — Digital 2400
Table 5 3
Group delay distortion
Frequency range Group delay distortion
Microseconds
500-600 1800
600-1000 900
1000-2600 300
2600-2800 1500