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2.5.2
Configuration of frequency
The frequency of the NSK5 can be selected by position 4 to 8 of the switches S1 (Transmit
channel) and S2 (Receive channel) as listed in Table 6 and Table 7. For simplicity, only frequen-
cies compatible to 23WT25 and 500FSD20 are listed.
Switch S1/S2
R.35
50 Bd.
R.37
100 Bd.
R38B
200 Bd.
R38A
200/300 Bd.
4
5
6
7
8
Off
Off
Off
Off
On
420 Hz ± 30 Hz
480 Hz ± 60 Hz
540 Hz ± 90 Hz
600 Hz ± 120 Hz
Off
Off
Off
On
Off
540 Hz ± 30 Hz
Off
Off
Off
On
On
660 Hz ± 30 Hz
720 Hz ± 60 Hz
Off
Off
On
Off
Off
780 Hz ± 30 Hz
900 Hz ± 90 Hz
Off
Off
On
Off
On
900 Hz ± 30 Hz
960 Hz ± 60 Hz
1080 Hz ± 120 Hz
Off
Off
On
On
Off
1020 Hz ± 30 Hz
Off
Off
On
On
On
1140 Hz ± 30 Hz
1200 Hz ± 60 Hz
1260 Hz ± 90 Hz
Off
On
Off
Off
Off
1260 Hz ± 30 Hz
Off
On
Off
Off
On
1380 Hz ± 30 Hz
1440 Hz ± 60 Hz
1560 Hz ± 120 Hz
Off
On
Off
On
Off
1500 Hz ± 30 Hz
1620 Hz ± 90 Hz
Off
On
Off
On
On
1620 Hz ± 30 Hz
1680 Hz ± 60 Hz
Off
On
On
Off
Off
1740 Hz ± 30 Hz
Off
On
On
Off
On
1860 Hz ± 30 Hz
1920 Hz ± 60 Hz
1980 Hz ± 90 Hz
2040 Hz ± 120 Hz
Off
On
On
On
Off
1980 Hz ± 30 Hz
Off
On
On
On
On
2100 Hz ± 30 Hz
2160 Hz ± 60 Hz
On
Off
Off
Off
Off
2220 Hz ± 30 Hz
2340 Hz ± 90 Hz
On
Off
Off
Off
On
2340 Hz ± 30 Hz
2400 Hz ± 60 Hz
2520 Hz ± 120 Hz
On
Off
Off
On
Off
2460 Hz ± 30 Hz
On
Off
Off
On
On
2580 Hz ± 30 Hz
2640 Hz ± 60 Hz
2700 Hz ± 90 Hz
On
Off
On
Off
Off
2700 Hz ± 30 Hz
On
Off
On
Off
On
2820 Hz ± 30 Hz
2880 Hz ± 60 Hz
3000 Hz ± 120 Hz
On
Off
On
On
Off
2940 Hz ± 30 Hz
3060 Hz ± 90 Hz
On
Off
On
On
On
3060 Hz ± 30 Hz
3120 Hz ± 60 Hz
On
On
Off
Off
Off
3180 Hz ± 30 Hz
Table 6: NSK5 Configuration of frequency
Switch S1/S2
V.23
1200 Bd.
4
5
6
7
8
On
X
X
X
Off
1700 Hz ± 400 Hz
Table 7: NSK5 Configuration of frequency for V.23
