Nortel DMS-100 Series General Description Manual page 52

1-36 DMS-100 ringing overview
The following table provides a summary of NT6X60 ringing generator
parameters.
Table 1-7 Ringing generator parameters - NT6X60 (Sheet 1 of 2)
Ringing type
Bell (86 V)
Decimonic
Harmonic
Synchromonic 16
Note: Maximum number of ringing lines is based on three ringers for each line and a short loop length.
297-1001-131 Standard 06.01 October 2000
RG PEC Frequency
NT6X60AA 20 Hz
20 Hz
20 Hz
NT6X60AA 20 Hz
20 Hz
30 Hz
40 Hz
50 Hz
60 Hz
NT6X60AA 20 Hz
16.67 Hz
25 Hz
33.33 Hz
50 Hz
66.67 Hz
NT6X60AA 20 Hz
16 Hz
30 Hz
42 Hz
54 Hz
66 Hz
Voltage Maximum ring line
-52 V dc 24 - 28
-40 V dc 24 - 28
+40 V dc 24 - 28
87 V ac 24
105 V ac 8
110 V ac
115 V ac
125 V ac
125 V ac
87 V ac 24
105 V ac 8
110 V ac
115 V ac
125 V ac
125 V ac
87 V ac 24
105 V ac 8
110 V ac
115 V ac
125 V ac
125 V ac