Fig. 3-7 Use Of Etl Bandwidth For A 3.2 Khz Af Channel - ABB ETL600 Instruction Manual

ETL600
ETL600: Usable bandwidth of a 3.2kHz AF channel
Speech 2000 Hz
Speech 2200 Hz
Speech 2400 Hz
480 720 960 1200
540 900
600 1080
1080
900
1200
Fig. 3-7
Structure and Function
1KHW001489-EN
Speech 2600 Hz
Speech 2800 Hz
NSD600 own
guard options
1440 1680 1920 2160
1260 1620 1980
1560 2040
2040
1700
1740
Use of ETL bandwidth for a 3.2 kHz AF channel
2240
NSD600
2440
guard
2640
2400 2640 2880 3120
2340 2700 3060
2520 3000
2580
November 2005
ABB Switzerland Ltd
Hz
Standard
Pilot
3120 Hz
Standard
Guard
3120 Hz
50 Bd/120Hz
(R.35)
Not available in
ETL600 Rel. 1
100 Bd/240 Hz
(R.37)
200 Bd/360 Hz
(R.38b)
200 Bd/480 Hz
(R.38a)
600 Bd/960 Hz
1200 Bd V.23
2400 bps/840Hz
4800 bps/1680Hz
Hz
3-9