Specifications

DMS-100 ringing overview 1-33
DMS-100 Family DMS-100 Ringing System BASE15 and up
The following table provides a summary of NT2X27 ringing generator
parameters.
UEN NTNP44 20 Hz single party
Coded
16 ADSL DMT Combo Line cards
per shelf/ 4 loops each for a total of
64 loops in shelf.
NTNP50 20 Hz single party
Coded
16 POTS line cards per shelf/ 32
POTS loops for a total of 512 loops
in shelf.
4 shelves per Universal Edge
equipment (UEE) frame
Table 1-4 Summary of ringing in peripheral modules (Sheet 2 of 2)
PM type RG PEC Ring type supported Maximum lines ring
Table 1-5 Ringing generator parameters - NT2X27 (Sheet 1 of 2)
Ringing type RG PEC Frequency Voltage Maximum ring lines
Bell (86 V) NT2X27AA 20 Hz
20 Hz
20 Hz
-52 V dc
-40 V dc
+40 V dc
15
15
15
Decimonic NT2X27AB 20 Hz
20 Hz
30 Hz
40 Hz
50 Hz
60 Hz
87 V ac
105 V ac
110 V ac
115 V ac
125 V ac
125 V ac
15
12
9
6
4
4
Harmonic NT2X27AC 20 Hz
16.67 Hz
25 Hz
33.33 Hz
50 Hz
66.67 Hz
87 V ac
105 V ac
110 V ac
115 V ac
125 V ac
125 V ac
15
15
11
7
4
3