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12.5.4 DCF
Mode
Determines the polarity of the active DCF 77 time code.
...
Line
X
[DCF]
Configuration
Mode DCF : 01
Selection from:
1, 2, 3, 4, 5, 6
The six different modes :
Mode 1
U
0
+
-
t
1s
2s
3s
Mode 2
U
0
+
-
t
1s
2s
3s
Mode 3
U
0
+
-
t
1s
2s
3s
Mode 4
U
0
+
-
t
1s
2s
3s
Mode 5:
U
0
+
-
t
1s
2s
3s
Mode 6
U
0
+
-
t
1s
2s
3s
Mode 1/6, 2/5, 3/4 are equal. Their polarity only depends on how the line is connected
to the ETC. The signal forms show the voltage measured from terminal b to terminal a
(ETC 12(R): a to b) (refer to annexe A).
