Nortel DMS-100 Series General Description Manual page 28

1-12 DMS-100 ringing overview
The dc component of the superimposed ringing signal determines the ringer
selection. The following table lists the values of both the ac and dc components
of the superimposed ringing signals.
Table 1-1 Superimposed ringing signal - ac and dc components>
ac
86
86
86
86
105
105
The following figures illustrate the relationship between the ringing signal and
the DMS-100 ringing cycle.
Figure 1-9 LCE superimposed revertive ringing with no immediate ring
Negativerevertive
297-1001-131 Standard 06.01 October 2000
dc
-38
+36
-52
+52
+52
-52
0
Even LSGs 1, 2
party
Odd LSGs 1, 2
party
3, 4 party
splash
Positive revertive
splash
ANI/coin (Any available slot)
0
Frequency (Hz)
20
20
20
20
20
20
6 s
0.46 s
0.92 s
1 2 3 4 5 6
1 2 3 4 5 6
7 8 9 10 11
7 8 9 10 11
0.48 s